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WO2014155479A1 - Composition de cristaux liquides et élément d'affichage à cristaux liquides l'utilisant - Google Patents

Composition de cristaux liquides et élément d'affichage à cristaux liquides l'utilisant Download PDF

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WO2014155479A1
WO2014155479A1 PCT/JP2013/058532 JP2013058532W WO2014155479A1 WO 2014155479 A1 WO2014155479 A1 WO 2014155479A1 JP 2013058532 W JP2013058532 W JP 2013058532W WO 2014155479 A1 WO2014155479 A1 WO 2014155479A1
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mass
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present
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Japanese (ja)
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河村　丞治
雅裕 丹羽
根岸　真
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DIC Corp
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DIC Corp
Dainippon Ink and Chemicals Co Ltd
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Priority to CN201380069521.6A priority Critical patent/CN104884576A/zh
Priority to JP2013539473A priority patent/JP5561440B1/ja
Priority to PCT/JP2013/058532 priority patent/WO2014155479A1/fr
Publication of WO2014155479A1 publication Critical patent/WO2014155479A1/fr
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/20—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters or ethers
    • C—CHEMISTRY; METALLURGY
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • C—CHEMISTRY; METALLURGY
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
    • C09K2019/0466—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the linking chain being a -CF2O- chain
    • C—CHEMISTRY; METALLURGY
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/3004—Cy-Cy
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/3009—Cy-Ph
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/301—Cy-Cy-Ph
    • C—CHEMISTRY; METALLURGY
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/3019—Cy-Cy-Ph-Ph
    • C—CHEMISTRY; METALLURGY
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • C09K2019/3025—Cy-Ph-Ph-Ph
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
    • C09K2019/3422—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a six-membered ring
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13706—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having positive dielectric anisotropy

Definitions

  • the present invention relates to a nematic liquid crystal composition having a positive dielectric anisotropy ( ⁇ ) useful as a liquid crystal display material, and a liquid crystal display device using the same.
  • Liquid crystal display elements are used in various measuring instruments, automobile panels, word processors, electronic notebooks, printers, computers, televisions, watches, advertisement display boards, as well as watches and calculators.
  • Typical liquid crystal display methods include TN (twisted nematic), STN (super twisted nematic), vertical alignment using TFT (thin film transistor), and IPS (in-plane switching). Etc.
  • the liquid crystal composition used in these liquid crystal display elements is stable against external stimuli such as moisture, air, heat, light, etc., and exhibits a liquid crystal phase in the widest possible temperature range centering on room temperature. And a low driving voltage is required.
  • the liquid crystal composition is composed of several to several tens of kinds of compounds in order to optimize the dielectric anisotropy ( ⁇ ) and / or the refractive index anisotropy ( ⁇ n) for each display element.
  • ⁇ dielectric anisotropy
  • ⁇ n refractive index anisotropy
  • a liquid crystal composition having a negative ⁇ is used
  • a horizontal alignment type display such as a TN type, STN type, or IPS (in-plane switching) type
  • a liquid crystal composition having a positive ⁇ Is used.
  • a driving method has been reported in which a liquid crystal composition having a positive ⁇ is vertically aligned when no voltage is applied and a horizontal electric field is applied to display the liquid crystal composition, and the necessity of a liquid crystal composition having a positive ⁇ is further increased. Yes.
  • low voltage driving, high-speed response, and a wide operating temperature range are required in all driving systems. That is, ⁇ is positive, the absolute value is large, the viscosity ( ⁇ ) is small, and a high nematic phase-isotropic liquid phase transition temperature (Tni) is required.
  • ⁇ n ⁇ d which is the product of ⁇ n and the cell gap (d)
  • ⁇ n of the liquid crystal composition it is necessary to adjust ⁇ n of the liquid crystal composition to an appropriate range according to the cell gap.
  • a liquid crystal composition having a low rotational viscosity ( ⁇ 1) is required.
  • Examples of the composition of the liquid crystal composition intended for high-speed response include, for example, compounds represented by the following general formulas (A-1) to (A-3), wherein ⁇ is a positive liquid crystal compound, and a liquid crystal having ⁇ as neutral.
  • a liquid crystal composition using a combination of the following general formula (B) which is a compound is disclosed.
  • the characteristics of these liquid crystal compositions are that a liquid crystal compound having a positive ⁇ has a —CF 2 O— structure, and a liquid crystal compound having a negative ⁇ has an alkenyl group. It is widely known in the field. (Patent Documents 1 to 4)
  • liquid crystal display elements using a liquid crystal composition are widely used, such as VA type and IPS type, and super large size display elements having a size of 50 type or more are practically used. Became.
  • the injection method of liquid crystal composition into the substrate became the main method of injection from the conventional vacuum injection method (ODF: One : Drop Fill), but the liquid crystal composition was applied to the substrate. The problem that the drop marks when dropped causes the display quality to deteriorate is brought to the surface.
  • the liquid crystal display element manufacturing process by the ODF method it is necessary to drop an optimal amount of liquid crystal according to the size of the liquid crystal display element.
  • the drop amount deviation increases from the optimum value, the balance between the refractive index and the driving electric field of the liquid crystal display element designed in advance is lost, and display defects such as spots and poor contrast occur.
  • small liquid crystal display elements frequently used in smartphones that have recently become popular are difficult to control the deviation from the optimum value within a certain range because the optimum liquid crystal dripping amount is small.
  • liquid crystal composition used for the active matrix drive liquid crystal display element driven by a TFT element or the like while maintaining the characteristics and performance required for a liquid crystal display element such as high-speed response performance, in addition to the characteristics of having a high specific resistance value or high voltage holding ratio, which are emphasized, and being stable against external stimuli such as light and heat, development in consideration of the manufacturing method of liquid crystal display elements has been required. ing.
  • the problem to be solved by the present invention is a liquid crystal composition having a positive ⁇ , a liquid crystal phase in a wide temperature range, low viscosity, good solubility at low temperature, specific resistance and voltage holding ratio.
  • IPS type and TN type liquid crystal displays that provide high liquid crystal composition that is stable against heat and light, and that are superior in display quality and are less susceptible to display defects such as image sticking and dripping marks.
  • the object is to provide elements with high yield.
  • a liquid crystal composition comprising: (Wherein R i1 represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently —CH ⁇ CH—, — C ⁇ C—, —O—, —CO—, —COO— or —OCO— may be substituted, and a hydrogen atom in the alkyl group may be substituted with a fluorine atom or a chlorine atom, n i1 represents 1 or 2, X i1 represents a hydrogen atom or a fluorine atom, A i1 represents a
  • R L1 and R L2 each independently represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently Optionally substituted by —CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, OL represents 0, 1, 2 or 3;
  • B L1 , B L2 and B L3 each independently represent (a) a 1,4-cyclohexylene group (one —CH 2 — present in this group or two or more —CH 2 — not adjacent to each other).
  • the above groups (a) and (b) may be each independently substituted with a cyano group, a fluorine atom or a chlorine atom
  • OL 2 or 3 and a plurality of L L2 are present, they may be the same or different, and when OL is 2 or 3 and a plurality of L L2 are present, they
  • K M1 and K M2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—,
  • X M1 and X M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom
  • X M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a
  • the active matrix driving liquid crystal display device according to (7), wherein the operation mode is an IPS system.
  • the active matrix driving liquid crystal display device according to (7), wherein the operation mode is an FFS system.
  • the active matrix driving liquid crystal display device according to (7), wherein the operation mode is an ECB system.
  • the active matrix driving liquid crystal display device according to (7), wherein the operation mode is an OCB system.
  • the liquid crystal display element for active matrix driving according to (7), wherein the operation mode is a VA system.
  • the liquid crystal display element for active matrix driving according to (7), wherein the operation mode is a VA-IPS system.
  • the liquid crystal composition of the present invention has a positive dielectric anisotropy, can obtain a viscosity much lower than conventional, has good solubility at low temperature, and has a specific resistance and voltage holding ratio. Since the change received by heat and light is extremely small, the practicality of the product is high, and an IPS type or FFS type liquid crystal display element using the product can achieve a high-speed response. Further, since the performance can be stably exhibited in the liquid crystal display element manufacturing process, display defects due to the process can be suppressed and the manufacturing can be performed with a high yield, which is very useful.
  • a board having 100 to 105 is called a “back plane”, and a board having 200 to 205 is called a “front plane”. It is a figure of the exposure process using the pattern for columnar spacer preparation formed on a black matrix as a photomask pattern.
  • the liquid crystal composition of the present invention has at least one compound represented by the general formula (i), which has a positive dielectric anisotropy and is a dielectrically positive component, and has the formula (ii-1)
  • a liquid crystal composition comprising the compound represented by formula (ii-2) and at least one selected from the compounds represented by formula (ii-2).
  • the liquid crystal composition of the present invention contains a compound represented by the following general formula (i) as an essential component.
  • R i1 represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently —CH ⁇ CH—, — C ⁇ C—, —O—, —CO—, —COO— or —OCO— may be substituted, and a hydrogen atom in the alkyl group may be substituted with a fluorine atom or a chlorine atom, n i1 represents 1 or 2, X i1 represents a hydrogen atom or a fluorine atom, A i1 independently represents a trans-1,4-cyclohexylene group or a 1,4-phenylene group in which a hydrogen atom may be substituted by a fluorine atom or a chlorine atom; Z i1 represents a single bond, —CH ⁇
  • the content ratio of the compound represented by the general formula (i) is preferably 25% by mass, preferably 20% by mass, and 15% by mass with respect to the total amount of 100% by mass of the liquid crystal composition of the present invention.
  • 13 mass% is preferable
  • 6 mass% is preferable
  • 4 mass% is preferable
  • 3 mass% is preferable
  • the lower limit is preferably 0.5 mass%, preferably 1 mass%, preferably 5 mass%, 6 mass% is preferable.
  • the content of the compound represented by the general formula (i) is preferably 0.5% by mass or more and 8% by mass or less, and preferably 1% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the compound represented by the general formula (i) contained in the liquid crystal composition of the present invention as an essential component is preferably a compound represented by the following general formula (XIII-2).
  • R 13 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the proportion of the compound represented by the general formula (XIII-2) is preferably 5% by mass or more and 25% by mass or less, preferably 6% by mass or more, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 25% by mass, preferably 8% by mass or more and 20% by mass or less, and preferably 10% by mass or more and 15% by mass or less.
  • the compound represented by the general formula (XIII-2) is preferably a compound represented by the formula (49.1) to the formula (49.4), and the formula (49.1) and / or the formula
  • the compound represented by (49.2) is preferable, and the compounds represented by Formula (49.1) and Formula (49.2) are preferably used in combination.
  • the content of the compounds represented by formula (49.1) and formula (49.2) is preferably 7% by mass or more and 15% by mass or less, and 9% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % Or more and 13 mass or less are preferable.
  • the amount of the compound represented by formula (49.1) and the content of the compound represented by formula (49.1) in the total of the compounds represented by formula (49.2) is preferably 30% by mass or more and 40% by mass, and 34% by mass. % To 38% by mass is preferable.
  • the compound represented by the general formula (i) is preferably a compound represented by the general formula (XIII-3).
  • R 13 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the proportion of the compound represented by the general formula (XIII-3) is preferably 2% by mass or more and 20% by mass or less, preferably 4% by mass or more, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. It is 20% by mass, preferably 9% by mass to 17% by mass, and preferably 11% by mass to 14% by mass.
  • the compound represented by the general formula (XIII-3) is preferably a compound represented by the formula (50.1) to the formula (50.4), and the formula (50.1) and / or the formula (50) .2) is preferred.
  • the compound represented by the general formula (i) is preferably a compound represented by the general formula (X-1-2).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-1-2) is 1% by mass or more, preferably 2% by mass or more, preferably 6% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % Or more. In consideration of solubility at low temperatures, transition temperature, electrical reliability, etc., the content of the compound represented by the general formula (X-1-2) is preferably 20% by mass as an upper limit value. 16 mass% is preferable, 12 mass% is preferable, and 10 mass% is preferable.
  • the content of the compound represented by the general formula (X-1-2) is preferably 0.5% by mass or more and 15% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • 1 mass% or more and 12 mass or less are preferable, 1 mass% or more and 9 mass or less are preferable, and as other embodiment, 0.5 mass% or more and 5 mass or less are preferable, 1 mass% or more and 3 mass or less are preferable, others
  • 5 mass% or more and 13 mass or less are preferable, 6 mass% or more and 10 mass or less are preferable, and 6 mass% or more and 9 mass or less are preferable.
  • the compounds represented by the general formula (X-1-2) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (37.1) to (37.4).
  • the content of the compound represented by the formula (37.2) is preferably 0.5% by mass or more and 15% by mass or less, and preferably 1% by mass or more and 12% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • 1 mass% or more and 9 mass% or less is preferable, 0.5 mass% or more and 5 mass or less are preferable as another embodiment, 1 mass% or more and 3 mass or less are preferable, and as another embodiment 5 mass%
  • the content is preferably 13 mass% or less, preferably 6 mass% or more and 10 mass% or less, and more preferably 6 mass% or more and 9 mass% or less.
  • the compound represented by the general formula (i) of the present invention is preferably a compound represented by the following general formula (X-3-1).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-3-1) is 1% by mass or more, preferably 2% by mass or more, and preferably 3% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % Or more.
  • the content of the compound represented by the general formula (X-3-1) is preferably 0% by mass or more and 10% by mass. Or less, preferably 0 to 8% by mass, preferably 0 to 6% by mass, and preferably 0 to 4% by mass.
  • the compounds represented by the general formula (X-3-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (41.1) to (41.4).
  • the compound represented by the general formula (i) is preferably a compound represented by the following general formula (XIV-2-5).
  • the content of the compound represented by the general formula (XIV-2-5) is 100 masses of the total mass of the liquid crystal composition of the present invention.
  • % Is preferably 5% by mass or more and 25% by mass or less, preferably 10% by mass or more and 22% by mass or less, preferably 13% by mass or more and 18% by mass or less, and preferably 13% by mass.
  • the content is 15% by mass or less.
  • the compound represented by the general formula (XIV-2-5) is specifically a compound represented by the formula (57.1) to the formula (57.4). Among these, it is more preferable to contain a compound represented by the formula (57.1).
  • the compound represented by the general formula (i) is preferably a compound represented by the following general formula (XIV-2-6).
  • the content of the compound represented by the general formula (XIV-2-6) is 100 mass of the total amount of the liquid crystal composition of the present invention. On the other hand, it is preferably 5% by mass or more and 25% by mass or less, preferably 10% by mass or more and 22% by mass or less, preferably 15% by mass or more and 20% by mass or less, and preferably 15% by mass or more. It is 17 mass% or less.
  • the compound represented by the general formula (XIV-2-6) is specifically preferably a compound represented by the formula (58.1) to the formula (58.4), among which the formula (58. It is more preferable to contain the compound represented by 2).
  • the liquid crystal composition of the present invention contains a compound represented by the following formula (ii-1) and / or a compound represented by (ii-2) as an essential component.
  • the content of the compounds represented by formulas (ii-1) and (ii-2) is determined in consideration of the required solubility and birefringence.
  • the content of the compound represented by the formula (ii-1) is preferably 5% by mass, preferably 7% by mass, and 9% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the content of the compound represented by formula (ii-1) is preferably 25% by mass as an upper limit, and 23% by mass. 21 mass% is preferable, 19 mass% is preferable, 15 mass% is preferable, 15 mass% is preferable, 23 mass% is preferable, 21 mass% is preferable, 19 mass% is preferable, and 17 mass% is preferable.
  • the content of the compound represented by the formula (ii-1) is preferably 6% by mass or more and 27% by mass or less, and 8% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • 25 mass% or less is preferable, 10 mass% or more and 23 mass or less are preferable, As another embodiment, 5 mass% or more and 20 mass or less are preferable, 8 mass% or more and 18 mass or less are preferable, and 10 mass% or more and 16 mass or less are preferable. Preferably, as other embodiment, 13 mass% or more and 28 mass or less are preferable, 15 mass% or more and 25 mass or less are preferable, and 16 mass% or more and 23 mass or less are preferable.
  • the content of the compound represented by formula (ii-2) is preferably 1% by mass, preferably 2% by mass, and preferably 3% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % Is preferable, and 5 mass% is preferable. In consideration of solubility at low temperatures, transition temperature, electrical reliability, etc., the content of the compound represented by the formula (ii-2) is preferably 20% by mass as an upper limit, and 16% by mass. Is preferable, 12 mass% is preferable, and 10 mass% is preferable.
  • the content of the compound represented by the formula (ii-2) is preferably 1% by mass or more and 23% by mass or less, and preferably 3% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • 21 mass% or less is preferable, 5 mass% or more and 19 mass or less are preferable.
  • 1 mass% or more and 15 mass or less are preferable, 3 mass% or more and 13 mass or less are preferable, and 5 mass% or more and 11 mass or less are preferable.
  • 13 mass% or more and 23 mass or less are preferable, 15 mass% or more and 21 mass or less are preferable, and 17 mass% or more and 19 mass or less are preferable.
  • the compound represented by the formula (ii-1) and the compound represented by the formula (ii-2) are used in combination.
  • the total content of the compound represented by formula (ii-1) and the compound represented by formula (ii-2) is 16% by mass as a lower limit with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • % Is preferable 18% by mass is preferable, 20% by mass is preferable, 22% by mass is preferable, 24% by mass is preferable, and 26% by mass is preferable.
  • the total content of the compound represented by formula (ii-1) and the compound represented by formula (ii-2) is The upper limit is preferably 33 mass%, preferably 31 mass%, preferably 29 mass%, preferably 27 mass%, preferably 25 mass%, and preferably 23 mass%.
  • the total content of the compound represented by formula (ii-1) and the compound represented by formula (ii-2) is based on 100% by mass of the total amount of the liquid crystal composition of the present invention. 15 mass% or more and 27 mass or less are preferable, 18 mass% or more and 24 mass or less are preferable, 20 mass% or more and 22 mass or less are preferable, and as another embodiment, 22 mass% or more and 34 mass or less are preferable, and 25 mass% or more 31 mass or less is preferable and 27 mass% or more and 29 mass or less are preferable.
  • the combination of the compounds represented by the general formula (i), the formula (ii-1) and the formula (ii-2) includes a combination of the compounds represented by the formula (37.2) and the formula (ii-1), A combination of compounds represented by formula (37.2) and formula (ii-2), a combination of compounds represented by formula (37.2), (ii-1) and formula (ii-2); A combination of the compounds represented by 49.1), (49.2) and formula (ii-2) is preferred.
  • the total content of both compounds is the lower limit relative to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the value is preferably 30% by mass, preferably 28% by mass, preferably 26% by mass, and preferably 24% by mass.
  • the total content of both compounds is preferably 13% by mass to 29% by mass, more preferably 15% by mass to 27% by mass, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the mass% is preferably 25% by mass or less.
  • the total content of both compounds is the lower limit relative to 100% by mass of the total amount of the liquid crystal composition of the present invention. 16% by mass is preferable, 18% by mass is preferable, 20% by mass is preferable, and 21% by mass is preferable, and 30% by mass is an upper limit considering solubility at a low temperature, transition temperature, electrical reliability, and the like. Preferably, 28 mass% is preferable, 26 mass% is preferable, and 24 mass% is preferable. Specifically, the total content of both compounds is preferably 17% by mass to 29% by mass, more preferably 19% by mass to 27% by mass, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. The mass% is preferably 25% by mass or less.
  • the total content of both compounds is 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the lower limit is preferably 21% by mass, preferably 23% by mass, preferably 25% by mass, and preferably 27% by mass, and is an upper limit considering solubility at low temperatures, transition temperature, electrical reliability, and the like.
  • 37 mass% is preferable, 35 mass% is preferable, 33 mass% is preferable, and 31 mass% is preferable.
  • the total content of both compounds is preferably 22% by mass to 36% by mass, more preferably 24% by mass to 34% by mass, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the mass% is preferably 32% by mass or less.
  • the total content of both compounds is 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the lower limit is preferably 22% by mass, preferably 24% by mass, preferably 26% by mass, and preferably 28% by mass, and the upper limit considering solubility at low temperatures, transition temperature, electrical reliability, etc.
  • 37 mass% is preferable, 35 mass% is preferable, 33 mass% is preferable, and 31 mass% is preferable.
  • the total content of both compounds is preferably 23% by mass to 36% by mass, more preferably 25% by mass to 34% by mass, with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the mass% is preferably 32% by mass or less.
  • the liquid crystal composition of the present invention preferably contains at least one compound represented by the general formula (L). However, the compound represented by (ii-1) and the compound represented by (ii-2) are excluded.
  • R L1 and R L2 each independently represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently Optionally substituted by —CH ⁇ CH—, —C ⁇ C—, —O—, —CO—, —COO— or —OCO—, OL represents 0, 1, 2 or 3;
  • B L1 , B L2 and B L3 each independently represent (a) a 1,4-cyclohexylene group (one —CH 2 — present in this group or two or more —CH 2 — not adjacent to each other).
  • the above groups (a) and (b) may be each independently substituted with a cyano group, a fluorine atom or a chlorine atom
  • OL 2 or 3 and a plurality of L L2 are present, they may be the same or different, and when OL is 2 or 3 and a plurality of L L2 are present, they
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of this invention, they are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, in another embodiment of the present invention, there are seven types. Furthermore, in another embodiment of this invention, they are eight types. Furthermore, in another embodiment of the present invention, there are nine types. Furthermore, in another embodiment of this invention, it is ten or more types.
  • the content of the compound represented by the general formula (L) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, and burn-in. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound is 1 to 95% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is 10% to 95% by mass.
  • the content is 20% to 95% by mass.
  • the content is 30% to 95% by mass.
  • the content is 40% to 95% by mass.
  • the content is 50% to 95% by mass.
  • the content is 55% to 95% by mass.
  • the content is 60% to 95% by mass.
  • the content is 65% to 95% by mass. In still another embodiment of the present invention, the content is 70% to 95% by mass. In still another embodiment of the present invention, the content is 75% to 95% by mass. In still another embodiment of the present invention, the content is 80% to 95% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 95% by mass in one embodiment of the present invention. In still another embodiment of the present invention, the content is 1% to 85% by mass. In still another embodiment of the present invention, the content is 1% to 75% by mass. In still another embodiment of the present invention, the content is 1% to 65% by mass.
  • the content is 1% to 55% by mass. In still another embodiment of the present invention, the content is 1% to 45% by mass. In still another embodiment of the present invention, the content is 1% to 35% by mass. In still another embodiment of the present invention, the content is 1% to 25% by mass.
  • the lower limit value and the upper limit value are preferably high in order to keep the viscosity of the liquid crystal composition low. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable that both the lower limit value and the upper limit value are high. In order to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value and the upper limit value are low.
  • R L1 and R L2 are each a linear alkyl group having 1 to 5 carbon atoms or a linear alkyl group having 1 to 4 carbon atoms when the ring structure to which R L1 is bonded is a phenyl group (aromatic). (Or more) alkoxy groups and alkenyl groups having 4 to 5 carbon atoms are preferred, and when the ring structure to which they are bonded is a saturated ring structure such as cyclohexane, pyran and dioxane, linear carbon atoms An alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 (or more) carbon atoms, and a linear alkenyl group having 2 to 5 carbon atoms are preferable.
  • the compound represented by the general formula (L) preferably has no chlorine atom in the molecule when chemical stability of the liquid crystal composition is required.
  • the compound represented by general formula (L) is preferably, for example, a compound selected from the group of compounds represented by general formula (I). However, the compound represented by (ii-1) and the compound represented by (ii-2) are excluded.
  • R 11 and R 12 each independently represent an alkoxy group or an alkenyl group having 2 to 5 carbon atoms in the alkyl group or having 1 to 5 carbon atoms having 1 to 5 carbon atoms
  • a 11 and A 12 each independently represents a 1,4-cyclohexylene group, a 1,4-phenylene group, a 2-fluoro-1,4-phenylene group or a 3-fluoro-1,4-phenylene group.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention.
  • the content of the compound represented by the general formula (I) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, image sticking. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 75% by mass in one embodiment of the present invention.
  • the content is 15% to 75% by mass.
  • the content is 18% to 75% by mass.
  • the content is 20% to 75% by mass.
  • the content is 29% to 75% by mass.
  • the content is 35% to 75% by mass.
  • the content is 42% to 75% by mass.
  • the content is 47% to 75% by mass.
  • the content is 53% to 75% by mass. In still another embodiment of the present invention, the content is 56% to 75% by mass. In still another embodiment of the present invention, the content is 60% to 75% by mass. In still another embodiment of the present invention, the content is 65% to 75% by mass.
  • the content is, for example, 3 to 75% by mass in one embodiment of the present invention with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is 3% to 65% by mass.
  • the content is 3% to 55% by mass.
  • the content is 3% to 50% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the lower limit value and the upper limit value are preferably high in order to keep the viscosity of the liquid crystal composition low. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable that the lower limit value is medium and the upper limit value is medium. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value is lowered and the upper limit value is low.
  • R 11 and R 12 are each a linear alkyl group having 1 to 5 carbon atoms or a linear carbon atom having 1 to 4 carbon atoms when the ring structure to which R 11 and R 12 are bonded is a phenyl group (aromatic).
  • the ring structure to which it is bonded is a saturated ring structure such as cyclohexane, pyran and dioxane, a straight-chain C 1-5 carbon atom is preferred.
  • Alkyl groups, linear alkoxy groups having 1 to 4 carbon atoms and linear alkenyl groups having 2 to 5 carbon atoms are preferred.
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-1). However, the compound represented by (ii-1) and the compound represented by (ii-2) are excluded.
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of this invention, they are five or more types.
  • the content of the compound represented by the general formula (I-1) is such that solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop mark Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content is 3 to 70% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is 15% to 70% by mass.
  • the content is 18% to 70% by mass.
  • the content is 25% to 70% by mass.
  • the content is 29% to 70% by mass.
  • the content is 31% to 70% by mass. In still another embodiment of the present invention, the content is 35% to 70% by mass. In still another embodiment of the present invention, the content is 43% to 70% by mass. In still another embodiment of the present invention, the content is 47% to 70% by mass. In still another embodiment of the present invention, the content is 50% to 70% by mass. In still another embodiment of the present invention, the content is 53% to 70% by mass. In still another embodiment of the present invention, the content is 56% to 70% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 70% by mass in one embodiment of the present invention.
  • the content is 3% to 60% by mass.
  • the content is 3% to 50% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 26% by mass.
  • the lower limit value and the upper limit value are preferably high in order to reduce the viscosity of the liquid crystal composition. Furthermore, when a liquid crystal composition with good temperature stability is required, the lower limit value and the upper limit value are preferably moderate in order to keep the Tni of the liquid crystal composition high. In order to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable that the lower limit value and the upper limit value are low.
  • the compound represented by the general formula (I-1) is preferably a compound represented by the general formula (I-1-1).
  • the content of the compound represented by the general formula (I-1-1) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, It is necessary to adjust appropriately according to required performance such as dripping marks, image sticking, and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 60% by mass in one embodiment of the present invention.
  • the content is 4% to 60% by mass.
  • the content is 7% to 60% by mass.
  • the content is 11% to 60% by mass.
  • the content is 13% to 60% by mass.
  • the content is 15% to 60% by mass.
  • the content is 17% to 60% by mass.
  • the content is 20% to 60% by mass.
  • the content is 25% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 32% to 60% by mass.
  • the content is 35% to 60% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 60% by mass in one embodiment of the present invention. In still another embodiment of the present invention, the content is 2% to 50% by mass. In still another embodiment of the present invention, the content is 2% to 40% by mass. In still another embodiment of the present invention, the content is 2% to 35% by mass. In still another embodiment of the present invention, the content is 2% to 30% by mass. In still another embodiment of the present invention, the content is 2% to 25% by mass. In still another embodiment of the present invention, the content is 2% to 20% by mass. In still another embodiment of the present invention, the content is 2% to 15% by mass. In still another embodiment of the present invention, the content is 3% to 11% by mass.
  • the compound represented by the general formula (I-1-1) is preferably a compound selected from the group consisting of compounds represented by the formulas (1.1) to (1.3). .2) or a compound represented by formula (1.3) is preferred, and a compound represented by formula (1.3) is particularly preferred.
  • the content of the compound represented by formula (1.2) Is effective for improving the response speed
  • the content of the compound represented by the formula (1.3) is a liquid crystal with a high response speed and a high electrical and optical reliability within the range shown below. This is preferable because a composition can be formed.
  • the compound represented by the formula (1.3) is preferably contained in an amount of 3% by mass to 35% by mass and more preferably 6% by mass to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention. More preferably, it is more preferably 8% by mass to 25% by mass, particularly preferably 10% by mass to 20% by mass, and most preferably 10% by mass to 15% by mass.
  • the compound represented by the general formula (I-1) is preferably a compound represented by the general formula (I-1-2). However, the compound represented by (ii-1) and the compound represented by (ii-2) are excluded.
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms, or an alkenyl group having 2 to 5 carbon atoms.
  • the content of the compound represented by the general formula (I-1-2) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, It is necessary to adjust appropriately according to required performance such as dripping marks, image sticking, and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 7 to 60% by mass in one embodiment of the present invention. Alternatively, in another embodiment of the present invention, the content is 15% to 60% by mass. In still another embodiment of the present invention, the content is 18% to 60% by mass. In still another embodiment of the present invention, the content is 21% to 60% by mass. In still another embodiment of the present invention, the content is 24% to 60% by mass. In still another embodiment of the present invention, the content is 27% to 60% by mass. In still another embodiment of the present invention, the content is 30% to 60% by mass. In still another embodiment of the present invention, the content is 34% to 60% by mass. In still another embodiment of the present invention, the content is 37% to 47% by mass.
  • the content is 37% to 60% by mass. In still another embodiment of the present invention, the content is 41% to 60% by mass. In still another embodiment of the present invention, the content is 47% to 60% by mass. In still another embodiment of the present invention, the content is 50% to 60% by mass. In still another embodiment of the present invention, the content is 22% to 45% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 7 to 60% by mass in one embodiment of the present invention.
  • the content is 7% to 55% by mass.
  • the content is 7% to 45% by mass.
  • the content is 7% to 40% by mass.
  • the content is 7% to 35% by mass.
  • the content is 7% to 30% by mass.
  • the content is 7% to 25% by mass.
  • the content is 7% to 20% by mass.
  • the compound represented by the general formula (I-1-2) is preferably a compound selected from the group of compounds represented by the formula (2.1) or the formula (2.2). .2) is more preferable.
  • the compound represented by the formula (2.2) is preferable because the response speed of the liquid crystal composition of the present invention is particularly improved.
  • the content of the compound represented by the formula (2.2) is preferably 5% by mass or more and 55% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. More preferable examples of the content are 10% by mass to 40% by mass, 14% to 40% by mass, 17% to 40% by mass, 19% to 40% by mass, 22% to 40% by mass. % Or less, 25% to 40% by mass, 27% to 40% by mass, 30% to 40% by mass, 33% to 40% by mass, and 36% to 40% by mass. It is done.
  • the liquid crystal composition of the present invention may further contain a compound represented by the formula (2.5) having a structure similar to that of the compound represented by the general formula (I-1-2).
  • the compound represented by the formula (2.5) is preferably contained in an amount of 11% by mass or more and 15% by mass or more with respect to 100% by mass of the total mass of the liquid crystal composition of the present invention.
  • the content is preferably 23% by mass or more, more preferably 26% by mass or more, and particularly preferably 28% by mass or more.
  • the compound represented by the general formula (I) is preferably a compound represented by the general formula (I-2).
  • R 13 and R 14 each independently represents an alkyl group having 1 to 5 carbon atoms.
  • R 13 and R 14 each independently represents an alkyl group having 1 to 5 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types.
  • the content of the compound represented by the general formula (I-2) is such that solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, drop mark Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content is 4% to 60% by mass.
  • the content is 15% to 60% by mass.
  • the content is 25% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 35% to 60% by mass.
  • the content is 38% to 60% by mass.
  • the content is 40% to 60% by mass.
  • the content is 42% to 60% by mass.
  • the content is 45% to 60% by mass.
  • the content is 47% to 60% by mass.
  • the content is 50% to 60% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one embodiment of the present invention.
  • the content is 3% to 55% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (I-2) is preferably a compound selected from the group of compounds represented by the formulas (3.1) to (3.4). ), A compound represented by formula (3.3) or formula (3.4).
  • the compound represented by the formula (3.2) is preferable because the response speed of the liquid crystal composition of the present invention is particularly improved.
  • the content of the compounds represented by the formulas (3.3) and (3.4) is not preferably 20% by mass or more in order to improve the solubility at low temperatures.
  • the compound represented by the general formula (I-2) is preferably a compound selected from the group of compounds represented by the formulas (3.1) to (3.4). ), A compound represented by formula (3.3) and / or formula (3.4).
  • the content of the compound represented by the formula (3.3) is 2% by mass to 40% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. Is preferred. More preferable content is, for example, 3% to 40% by mass, 4% to 40% by mass, 10% to 40% by mass, 12% to 40% by mass, 14% to 40% by mass.
  • % By mass or less, 16% by mass to 40% by mass, 20% by mass to 40% by mass, 23% by mass to 40% by mass, 26% by mass to 40% by mass, 30% by mass to 40% by mass, 34 % By mass to 40% by mass, 37% by mass to 40% by mass, or 3% by mass to 4% by mass, 3% by mass to 10% by mass, 3% by mass to 12% by mass, 3% by mass or more 14 mass% or less, 3 mass% or more and 16 mass% or less, 3 mass% or more and 20 mass% or less, 3 mass% or more and 23 mass% or less, 3 mass% or more and 26 mass% or less, 3 mass% or more and 30 mass% or less, 3% by mass or more 34
  • the amount percent include 37 wt% or less 3 wt% or more.
  • the compound represented by the general formula (I) is preferably a compound represented by the general formula (I-3).
  • R 13 represents an alkyl group having 1 to 5 carbon atoms
  • R 15 represents an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. In another embodiment of the present invention, there are three types.
  • the content of the compound represented by the general formula (I-3) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping trace Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3% by mass in one embodiment of the present invention.
  • the content is 4% to 60% by mass.
  • the content is 15% to 60% by mass.
  • the content is 25% to 60% by mass.
  • the content is 30% to 60% by mass.
  • the content is 35% to 60% by mass.
  • the content is 38% to 60% by mass.
  • the content is 40% to 60% by mass.
  • the content is 42% to 60% by mass.
  • the content is 45% to 60% by mass.
  • the content is 47% to 60% by mass.
  • the content is 50% to 60% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 60% by mass in one form of the present invention.
  • the content is 3% to 55% by mass.
  • the content is 3% to 45% by mass.
  • the content is 3% to 40% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 5% by mass.
  • the effect is high when the content is set to be large.
  • the response speed is important, the effect is high when the content is set low.
  • the compound represented by the general formula (I-3) is preferably a compound selected from the group of compounds represented by the formulas (4.1) to (4.3). It is more preferable that it is a compound represented by.
  • the content of the compound represented by the formula (4.3) is preferably 2% by mass to 30% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention, and is preferably 4% by mass to 30%. More preferably, it is 6 mass% or more and 30 mass% or less, More preferably, it is 8 mass% or more and 30 mass% or less, It is 10 mass% or more and 30 mass% or less. More preferably, it is more preferably 12% by mass or more and 30% by mass or less, more preferably 14% by mass or more and 30% by mass or less, and more preferably 16% by mass or more and 30% by mass or less. It is more preferably 18% by mass or more and 25% by mass or less, more preferably 20% by mass or more and 24% by mass or less, and particularly preferably 22% by mass or more and 23% by mass or less. .
  • the compound represented by general formula (I) is preferably a compound selected from the group of compounds represented by general formula (I-4).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (I-4) is such that solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dropping trace Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 6% to 50% by mass.
  • the content is 8% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 12% to 50% by mass.
  • the content is 15% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 25% to 50% by mass.
  • the content is 30% to 50% by mass.
  • the content is 35% to 50% by mass.
  • the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, in one form of the present invention, the content is 3 to 50% by mass. In still another embodiment of the present invention, the content is 3% to 40% by mass. In still another embodiment of the present invention, the content is 3% to 35% by mass. In still another embodiment of the present invention, the content is 3% to 30% by mass. In still another embodiment of the present invention, the content is 3% to 20% by mass. In still another embodiment of the present invention, the content is 3% to 15% by mass. In still another embodiment of the present invention, the content is 3% to 10% by mass. In still another embodiment of the present invention, the content is 3% to 5% by mass.
  • the effect is high when the content is set to be large.
  • the effect is high when the content is set low.
  • the compound represented by the general formula (I-4) is preferably a compound selected from the group of compounds represented by the formulas (5.1) to (5.4). To a compound represented by the formula (5.4).
  • the content of the compound represented by the formula (5.4) is preferably 2% by mass or more and 30% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. More preferable content is, for example, 3% by mass to 30% by mass, 6% by mass to 30% by mass, 8% by mass to 30% by mass, 10% by mass to 30% by mass, 12% by mass to 30% by mass.
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-5).
  • R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • R 12 represents an alkyl group having 1 to 5 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types.
  • the content of the compound represented by the general formula (I-5) is low temperature solubility, transition temperature, electrical reliability, birefringence index, process suitability, dripping trace. Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 8% to 50% by mass.
  • the content is 11% to 50% by mass.
  • the content is 13% to 50% by mass.
  • the content is 15% to 50% by mass.
  • the content is 17% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 25% to 50% by mass.
  • the content is 30% to 50% by mass.
  • the content is 35% to 50% by mass.
  • the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 50 mass% in one embodiment of the present invention.
  • the content is 1% to 40% by mass.
  • the content is 1% to 35% by mass.
  • the content is 1% to 30% by mass.
  • the content is 1% to 20% by mass.
  • the content is 1% to 15% by mass.
  • the content is 1% to 10% by mass.
  • the content is 1% to 5% by mass.
  • the compound represented by the general formula (I-5) is preferably a compound selected from the group of compounds represented by the formulas (6.1) to (6.6). ), A compound represented by formula (6.4) and formula (6.6) is more preferable.
  • the content of the compound represented by the formula (6.6) is preferably 2% by mass or more and 30% by mass or less, and preferably 4% by mass or more and 30% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • % Or more more preferably 5% by mass or more and 30% by mass or less, more preferably 6% by mass or more and 30% by mass or less, and more preferably 9% by mass or more and 30% by mass or less.
  • the liquid crystal composition of the present invention further contains a compound represented by formula (6.7) or formula (6.8) having a structure similar to that of the compound represented by formula (I-5). You can also.
  • the content of the compound represented by the formula (6.7) is preferably 2% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention, and 3% by mass or more. It is preferable to contain 5% by mass or more, preferably 7% by mass or more.
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-6).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group or an alkoxy group having 1 to 4 carbon atoms carbon atoms 4 to 5
  • X 11 and X 12 each independently represents a fluorine atom or a hydrogen atom, and either X 11 or X 12 is a fluorine atom.
  • the content of the compound represented by the general formula (I-6) is preferably 2% by mass or more and 30% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and is 4% by mass or more and 30% by mass. It is more preferably 5% by mass or more and 30% by mass or less, more preferably 6% by mass or more and 30% by mass or less, and more preferably 9% by mass or more and 30% by mass or less.
  • it is 12 mass% or more and 30 mass% or less, More preferably, it is 14 mass% or more and 30 mass% or less, It is more preferable that it is 16 mass% or more and 30 mass% or less, 18 mass % To 25% by mass, more preferably 20% to 24% by mass, and particularly preferably 22% to 23% by mass.
  • the compound represented by the general formula (I-6) is preferably a compound represented by the formula (7.1).
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-7).
  • R 11 and R 12 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and X 12 represents Independently represents a fluorine atom or a chlorine atom.
  • the content of the compound represented by the general formula (I-7) is preferably 1% by mass or more and 30% by mass or less, preferably 2% by mass or more and 30% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • it is 3% by mass or more and 30% by mass or less, more preferably 4% by mass or more and 30% by mass or less, and more preferably 6% by mass or more and 30% by mass or less. Is more preferably 8% by mass or more and 30% by mass or less, more preferably 10% by mass or more and 30% by mass or less, and more preferably 12% by mass or more and 30% by mass or less. It is more preferably 15% by mass or more and 25% by mass or less, more preferably 18% by mass or more and 24% by mass or less, and particularly preferably 21% by mass or more and 22% by mass or less.
  • the compound represented by the general formula (I-7) is preferably a compound represented by the formula (8.1).
  • the compound represented by the general formula (I) is preferably a compound selected from the group of compounds represented by the general formula (I-8).
  • R 16 and R 17 each independently represents an alkenyl group having 2 to 5 carbon atoms
  • R 16 and R 17 each independently represents an alkenyl group having 2 to 5 carbon atoms
  • required such as solubility at low temperature, transition temperature, electrical reliability, birefringence
  • the content of the compound represented by the general formula (I-8) is the solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, drop mark, image sticking, dielectric anisotropy It can be adjusted as appropriate according to the required performance.
  • the content of the compound represented by the general formula (I-8) is preferably 5% by mass or more and 65% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. More preferably, it is 10 mass% or more and 65 mass% or less, More preferably, it is 15 mass% or more and 65 mass% or less, More preferably, it is 20 mass% or more and 65 mass% or less, 25 mass% or more More preferably, it is 65 mass% or less, More preferably, it is 30 mass% or more and 65 mass% or less, More preferably, it is 35 mass% or more and 65 mass% or less, 40 mass% or more and 65 mass% or less More preferably, it is 45 mass% or more and 60 mass% or less, More preferably, it is 50 mass% or more and 58 mass% or less, 55 mass% or more and 56 mass% or less Rukoto is particularly preferred.
  • the compound represented by the general formula (I-8) is preferably a compound selected from the group of compounds represented by the formulas (9.1) to (9.10). ), A compound represented by formula (9.4) and formula (9.7) is more preferable.
  • the compound represented by general formula (L) is a compound represented, for example by general formula (II).
  • R 21 and R 22 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms, and A 2 represents 1,4- cyclohexylene or 1,4-phenylene group, Q 2 is a single bond, -COO -, - CH 2 -CH 2 - or an -CF 2 O-).
  • limiting in particular in the kind of compound which can be combined It combines according to performance requested
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Moreover, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of this invention, they are four or more types.
  • the content of the compound represented by the general formula (II) includes solubility at low temperature, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, and burn-in. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 7% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 14% to 50% by mass.
  • the content is 16% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 23% to 50% by mass.
  • the content is 26% to 50% by mass.
  • the content is 30% to 50% by mass.
  • the content is 35% to 50% by mass.
  • the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 10% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (II) is preferably a compound selected from the compound group represented by the general formula (II-1), for example.
  • R 21 and R 22 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-1) is preferably adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, birefringence and the like.
  • the mass is preferably from 24% by mass to 24% by mass, more preferably from 8% by mass to 18% by mass, and still more preferably from 12% by mass to 14% by mass.
  • the compound represented by the general formula (II-1) is preferably, for example, a compound represented by the formula (10.1) or the formula (10.2).
  • the compound represented by the general formula (II) is preferably, for example, a compound represented by the general formula (II-2).
  • R 23 represents an alkenyl group having 2 to 5 carbon atoms
  • R 24 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-2) is low temperature solubility, transition temperature, electrical reliability, birefringence index, process suitability, dropping trace. Therefore, it is necessary to adjust appropriately according to required performance such as image sticking and dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 5% to 50% by mass.
  • the content is 7% to 50% by mass.
  • the content is 10% to 50% by mass.
  • the content is 14% to 50% by mass.
  • the content is 16% to 50% by mass.
  • the content is 20% to 50% by mass.
  • the content is 23% to 50% by mass.
  • the content is 26% to 50% by mass.
  • the content is 30% to 50% by mass.
  • the content is 35% to 50% by mass.
  • the content is 40% to 50% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 50% by mass in one embodiment of the present invention.
  • the content is 3% to 40% by mass.
  • the content is 3% to 35% by mass.
  • the content is 3% to 30% by mass.
  • the content is 3% to 20% by mass.
  • the content is 3% to 15% by mass.
  • the content is 3% to 10% by mass.
  • the content is 3% to 5% by mass.
  • the compound represented by the general formula (II-2) is preferably a compound represented by, for example, the formula (11.1) to the formula (11.3).
  • the content of the compound represented by formula (11.1) is preferably 3% by mass or more and 40% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention, and 5% by mass or more and 35% by mass. More preferably 5% by mass or more and 30% by mass or less, further preferably 5% by mass or more and 25% by mass or less, and particularly preferably 5% by mass or more and 20% by mass or less. Most preferred. Of the most preferable ranges, for example, 8% by mass or more and 20% by mass or less, 12% by mass or more and 20% by mass or less, 15% by mass or more and 20% by mass or less, 5% by mass or more and 18% by mass or less, 5% by mass or more. 15 mass% or less, 5 mass% or more and 12 mass% or less, 5 mass% or more and 10 mass% or less, 5 mass% or more and 8 mass% or less are mentioned.
  • the content of the compound represented by the formula (11.2) is preferably 3% by mass or more and 40% by mass or less, and preferably 3% by mass or more and 35% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • % Or less more preferably 3% by mass or more and 30% by mass or less, further preferably 3% by mass or more and 25% by mass or less, and further preferably 3% by mass or more and 20% by mass or less.
  • the most preferable ranges for example, 3 mass% to 12 mass%, 3 mass% to 10 mass%, 3 mass% to 8 mass%, 3 mass% to 6 mass%, 6 mass% to 15 mass%.
  • % Or less 8% by mass or more and 15% by mass or less, 10% by mass or more and 15% by mass or less, and 12% by mass or more and 15% by mass or less.
  • the total mass of both compounds is with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 13% by mass or more and 45% by mass or less, more preferably 19% by mass or more and 40% by mass or less, and further preferably 24% by mass or more and 35% by mass or less.
  • the compound represented by the general formula (II) is preferably, for example, a compound represented by the general formula (II-3).
  • R 25 represents an alkyl group having 1 to 5 carbon atoms
  • R 24 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-3) is solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, dielectric anisotropy It is necessary to adjust appropriately according to the required performance.
  • the content of the compound represented by the general formula (II-3) is preferably 2 to 45% by mass with respect to the total amount of 100% by mass of the liquid crystal composition of the present invention, and more preferable content
  • the amount is, for example, 5 to 45% by mass, 8 to 45% by mass, 11 to 45% by mass, 14 to 45% by mass, 17 to 45% by mass, 20 to 45% by mass, 23 to 45% by mass, 26 to 45%.
  • the compound represented by the general formula (II-3) is preferably a compound represented by, for example, the formula (12.1) to the formula (12.3).
  • the formula (12.2) Or a compound represented by formula (12.1) and a compound represented by formula (12.2) is 3% by mass or more and 40% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • it is 5 to 40% by mass, more preferably 7 to 40% by mass, more preferably 9 to 40% by mass, and 11% by mass.
  • the content of the compound represented by the formula (12.2) is preferably 3% by mass or more and 40% by mass or less with respect to the total mass of the liquid crystal composition of the present invention, and 5% by mass or more and 40% by mass.
  • % Is more preferably 8% by mass or more and 40% by mass or less, further preferably 10% by mass or more and 40% by mass or less, and more preferably 12% by mass or more and 40% by mass or less.
  • the total mass of both compounds is with respect to the total mass of the liquid crystal composition of the present invention. It is preferably 15% by mass or more and 45% by mass or less, more preferably 19% by mass or more and 45% by mass or less, still more preferably 24% by mass or more and 40% by mass or less, and more preferably 30% by mass or more and 35% by mass. It is particularly preferable that the content is not more than mass%.
  • the content of the compound represented by the formula (12.3) is preferably 0.05% by mass or more and 2% by mass or less, and 0.1% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 1% by mass, more preferably 0.2% to 0.5% by mass.
  • the compound represented by the formula (12.3) may be an optically active compound.
  • the compound represented by the general formula (II-3) is preferably, for example, a compound represented by the general formula (II-3-1).
  • R 25 represents an alkyl group having 1 to 5 carbon atoms
  • R 26 represents an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-3-1) is preferably adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. 1 mass% or more and 24 mass% or less are preferable, 4 mass% or more and 18 mass% or less are more preferable, and 5 mass% or more and 14 mass% or less are still more preferable.
  • the compound represented by the general formula (II-3-1) is preferably, for example, a compound represented by the formula (13.1) to the formula (13.4), in particular, the formula (13.3). It is more preferable that it is a compound represented by.
  • the content of the compound represented by the formula (13.3) is preferably 4% by mass or more and 5% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the compound represented by the general formula (II) is preferably, for example, a compound represented by the general formula (II-4).
  • R 21 and R 22 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (II-4) is preferably not less than 15% by mass and not more than 15% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % Or less, more preferably 3% by mass or more and 15% by mass or less, more preferably 4% by mass or more and 12% by mass or less, and more preferably 5% by mass or more and 7% by mass or less. Is particularly preferred.
  • the compound represented by the general formula (II-4) is preferably, for example, a compound represented by the formula (14.1) to the formula (14.5), and in particular, the formula (14.2) and More preferably, it is a compound represented by the formula (14.5).
  • the compound represented by general formula (L) is a compound chosen from the compound group represented by general formula (III).
  • R 31 and R 32 each independently represents an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (III) is 3% by mass or more and 25% by mass or less with respect to the total mass of the liquid crystal composition of the present invention in consideration of required solubility and birefringence. Preferably, it is contained in an amount of 6% by mass or more and 20% by mass or less, and more preferably 8% by mass or more and 15% by mass or less.
  • the compound represented by the general formula (III) is preferably, for example, a compound represented by the formula (15.1) or the formula (15.2), and particularly represented by the formula (15.1). It is preferable that it is a compound.
  • the compound represented by the general formula (III) is preferably a compound selected from the compound group represented by the general formula (III-1).
  • R 33 represents an alkenyl group having 2 to 5 carbon atoms.
  • R 32 independently represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (III-1) is preferably adjusted according to required performance such as solubility at low temperature, transition temperature, electrical reliability, birefringence, 4 mass% or more and 23 mass% or less are preferable, 6 mass% or more and 18 mass% or less are more preferable, and 10 mass% or more and 13 mass% or less are still more preferable.
  • the compound represented by the general formula (III-1) is preferably, for example, a compound represented by the formula (16.1) or the formula (16.2).
  • the compound represented by the general formula (III) is preferably a compound selected from the group of compounds represented by the general formula (III-2).
  • R 31 represents an alkyl group having 1 to 5 carbon atoms
  • R 34 represents an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (III-2) is preferably adjusted according to required properties such as solubility at low temperature, transition temperature, electrical reliability, birefringence and the like.
  • the mass is preferably from 23% by mass to 23% by mass, more preferably from 6% by mass to 18% by mass, and still more preferably from 10% by mass to 13% by mass.
  • the compound represented by the general formula (III-2) is preferably a compound selected from, for example, a compound group represented by the formula (17.1) to the formula (17.3). .3) is preferred.
  • the content of the compound represented by the formula (17.3) is preferably 5% by mass or more and 6% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the compound represented by the general formula (L) is preferably a compound represented by the general formula (IV).
  • R 41 and R 42 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
  • X 41 and X 42 each independently represent a hydrogen atom or fluorine. Represents an atom.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of this invention, they are four types. Furthermore, in another embodiment of this invention, they are five types. Furthermore, in another embodiment of this invention, they are six or more types.
  • the compound represented by the general formula (IV) is preferably, for example, a compound represented by the general formula (IV-1).
  • R 43 and R 44 each independently represents an alkyl group having 1 to 5 carbon atoms.
  • the content of the compound represented by the general formula (IV-1) is solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, dielectric anisotropy It is necessary to adjust appropriately according to the required performance.
  • the content of the compound is, for example, 1 to 40% by mass in one embodiment with respect to the total mass of the liquid crystal composition of the present invention. In still another embodiment of the present invention, the content is 2% to 40% by mass. In still another embodiment of the present invention, the content is 4% to 40% by mass. In still another embodiment of the present invention, the content is 6% to 40% by mass. In still another embodiment of the present invention, the content is 8% to 40% by mass. In still another embodiment of the present invention, the content is 10% to 40% by mass. In still another embodiment of the present invention, the content is 18% to 40% by mass. In still another embodiment of the present invention, the content is 21% to 40% by mass.
  • the content of the compound is 1 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content is 1% to 30% by mass.
  • the content is 1% to 25% by mass.
  • the content is 1% to 20% by mass.
  • the content is 1% to 15% by mass.
  • the content is 1% to 10% by mass.
  • the content is 1% to 5% by mass.
  • the content is 1% to 4% by mass.
  • the content is 5% to 6% by mass.
  • the compound represented by the general formula (IV-1) is preferably a compound represented by, for example, the formula (18.1) to the formula (18.9).
  • the compound represented by the general formula (IV) is preferably, for example, a compound represented by the general formula (IV-2).
  • R 45 and R 46 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, at least one of which is an alkenyl group having 2 to 5 carbon atoms.
  • X 41 and X 42 each independently represents a hydrogen atom or a fluorine atom.
  • the content of the compound represented by the general formula (IV-2) is solubility at low temperature, transition temperature, electrical reliability, birefringence, process compatibility, dripping marks, image sticking, dielectric anisotropy It is necessary to adjust appropriately according to the required performance.
  • the content of the compound represented by the general formula (IV-2) is preferably 0.5 to 40% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. More preferable contents are, for example, 1 to 40% by mass, 2 to 40% by mass, 3 to 40% by mass, 5 to 40% by mass, 7 to 40% by mass, 9 to 40% by mass, and 12 to 40% by mass. 15-40% by mass, 20-40% by mass, or 1-40% by mass, 1-30% by mass, 1-25% by mass, 1-20% by mass, 1-15% by mass, 1-10% by mass 1 to 5% by mass, and 1 to 4% by mass.
  • the compound represented by the general formula (IV-2) is preferably, for example, a compound represented by the formula (19.1) to the formula (19.8), among which the formula (19.2) It is preferable that it is a compound represented by these.
  • the wide molecular weight distribution of the compound selected as the component of the liquid crystal composition is also effective for the solubility, for example, one type of the compound represented by formula (19.1) or (19.2), formula (19 .3) or one type from the compound represented by (19.4), one type from the compound represented by formula (19.5) or formula (19.6), formula (19.7) or (19. It is preferable that one type of compound is selected from the compounds represented by 8), one type of compound is further selected from the compounds represented by the formula (19.9), and these are appropriately combined.
  • the content of the compound represented by the formula (19.4) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 3% by mass or more and 25% by mass or less, more preferably 5% by mass or more and 20% by mass or less, and more preferably 5% by mass or more and 15% by mass or less, and preferably 7% by mass or more and 10% by mass. % Or less is particularly preferable.
  • the compound represented by the general formula (L) is preferably a compound selected from the group represented by the general formula (V).
  • each R 51 and R 52 are independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group or an alkoxy group having 1 to 4 carbon atoms carbon atoms 2 to 5
  • a 51 and A 52 independently represents a 1,4-cyclohexylene group or 1,4-phenylene group, Q 5 represents a single bond or —COO—, and X 51 and X 52 each independently represent a fluorine atom or a hydrogen atom. Represents.
  • limiting in particular in the kind of compound which can be combined It combines according to performance requested
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of this invention, they are four types.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment. In still another embodiment of the present invention, the content is 4% to 40% by mass. In still another embodiment of the present invention, the content is 7% to 40% by mass. In still another embodiment of the present invention, the content is 10% to 40% by mass. In still another embodiment of the present invention, the content is 12% to 40% by mass. In still another embodiment of the present invention, the content is 15% to 40% by mass. In still another embodiment of the present invention, the content is 17% to 40% by mass. In still another embodiment of the present invention, the content is 18% to 40% by mass. In still another embodiment of the present invention, the content is 20% to 40% by mass. In still another embodiment of the present invention, the content is 22% to 40% by mass.
  • the content of the compound is 2 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 2% to 30% by mass.
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 20% by mass.
  • the content of the compound is 2% to 15% by mass.
  • the content of the compound is 2% to 10% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the content of the compound is 2% to 4% by mass.
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-1).
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-1).
  • R51 and R52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (V-1-1) is preferably 1% by mass or more and 15% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 15% by mass, more preferably 3% to 10% by mass, and particularly preferably 4% to 8% by mass.
  • the compound represented by the general formula (V-1-1) is preferably a compound represented by the formula (20.1) to the formula (20.4), and represented by the formula (20.2). More preferably, the compound is
  • the content of the compound represented by the formula (20.2) is preferably 3% by mass or more and 5% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-2).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (V-1-2) is preferably 1% by mass or more and 15% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 15% by mass, more preferably 3% to 10% by mass, and particularly preferably 4% to 8% by mass.
  • the compound represented by the general formula (V-1-2) is preferably a compound represented by the formula (21.1) to the formula (21.3), and represented by the formula (21.1). More preferably, the compound is
  • the compound represented by the general formula (V-1) is preferably a compound represented by the general formula (V-1-3).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (V-1-3) is preferably 1% by mass to 15% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the content is more preferably 15% by mass or less, further preferably 3% by mass or more and 10% by mass or less, and particularly preferably 4% by mass or more and 8% by mass or less.
  • the compound represented by the general formula (V-1-3) is a compound represented by the formula (22.1) to the formula (22.3). It is more preferable that it is a compound represented by Formula (22.1).
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-2).
  • each of R 51 and R 52 are independently an alkyl group having 1 to 5 carbon atoms, an alkenyl group or an alkoxy group having 1 to 4 carbon atoms carbon atoms 2 to 5
  • X 51 and X 52 each independently represents a fluorine atom or a hydrogen atom.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment. In still another embodiment of the present invention, the content of the compound is 4% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 7% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 10% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 12% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 15% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 17% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 18% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 20% to 40% by mass. In still another embodiment of the present invention, the content of the compound is 22% to 40% by mass.
  • the content of the compound is 2 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 2% to 30% by mass.
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 20% by mass.
  • the content of the compound is 2% to 15% by mass.
  • the content of the compound is 2% to 10% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the content of the compound is 2% to 4% by mass.
  • the compound represented by the general formula (V-2) is preferably a compound represented by the general formula (V-2-1).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (V-2-1) is preferably a compound represented by the formula (23.1) to the formula (23.4), and the formula (23.1) and / or Or it is more preferable that it is a compound represented by Formula (23.2).
  • the compound represented by the general formula (V-2) is preferably a compound represented by the general formula (V-2-2).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (V-2-2) is preferably a compound represented by the formula (24.1) to the formula (24.4), and the formula (24.1) and / or Or it is more preferable that it is a compound represented by Formula (24.2).
  • the compound represented by the general formula (V) is preferably a compound represented by the general formula (V-3).
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 51 and R 52 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three or more types.
  • the content of the compound represented by the general formula (V-3) is preferably 2% by mass or more and 16% by mass or less, preferably 4% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 16% by mass, more preferably 7% to 13% by mass, and particularly preferably 8% to 11% by mass.
  • the compound represented by the general formula (V-3) is preferably a compound represented by the formula (25.1) to the formula (25.3).
  • the liquid crystal composition of the present invention preferably contains a compound represented by the general formula (M).
  • R M1 represents an alkyl group having 1 to 8 carbon atoms, and one or two or more non-adjacent —CH 2 — in the alkyl group are each independently —CH ⁇ CH—, — Optionally substituted by C ⁇ C—, —O—, —CO—, —COO— or —OCO—, PM represents 0, 1, 2, 3 or 4;
  • C M1 and C M2 are each independently (D) 1,4-cyclohexylene group (this is present in the group one -CH 2 - or nonadjacent two or more -CH 2 - may be replaced by -O- or -S- And (e) a 1,4-phenylene group (one —CH ⁇ present in the group or two or more non-adjacent —CH ⁇ may be replaced by —N ⁇ ).
  • K M1 and K M2 are each independently a single bond, —CH 2 CH 2 —, — (CH 2 ) 4 —, —OCH 2 —, —CH 2 O—, —OCF 2 —, —CF 2 O—, Represents —COO—, —OCO— or —C ⁇ C—,
  • X M1 and X M3 each independently represent a hydrogen atom, a chlorine atom or a fluorine atom
  • X M2 represents a hydrogen atom, a fluorine atom, a chlorine atom, a
  • the compound represented by general formula (i) is excluded.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of this invention, they are five types. Furthermore, in another embodiment of the present invention, there are six types. Furthermore, in another embodiment of this invention, they are seven or more types.
  • the content of the compound represented by the general formula (M) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, image sticking. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 95% by mass in one embodiment of the present invention.
  • the content of the compound is 10% to 95% by mass.
  • the content of the compound is 20% to 95% by mass.
  • the content of the compound is 30% to 95% by mass.
  • the content of the compound is 40% to 95% by mass.
  • the content of the compound is 45% to 95% by mass.
  • the content of the compound is 50% to 95% by mass.
  • the content of the compound is 55% to 95% by mass.
  • the content of the compound is 60% to 95% by mass.
  • the content of the compound is 65% to 95% by mass.
  • the content of the compound is 70% to 95% by mass.
  • the content of the compound is 75% to 95% by mass.
  • the content of the compound is 80% to 95% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 1 to 95% by mass in one embodiment of the present invention.
  • the content of the compound is 1% to 85% by mass.
  • the content of the compound is 1% to 75% by mass.
  • the content of the compound is 1% to 65% by mass.
  • the content of the compound is 1% to 55% by mass.
  • the content of the compound is 1% to 45% by mass.
  • the content of the compound is 1% to 35% by mass.
  • the content of the compound is 1% to 25% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • R M1 represents a linear alkyl group having 1 to 5 carbon atoms or a linear alkoxy group having 1 to 4 carbon atoms when the ring structure to which R M1 is bonded is a phenyl group (aromatic). And an alkenyl group having 4 to 5 carbon atoms is preferred.
  • R M1 represents a linear alkyl group having 1 to 5 carbon atoms or a linear carbon atom number when the ring structure to which R M1 is bonded is a saturated ring structure such as cyclohexane, pyran, or dioxane.
  • Preferred are an alkoxy group having 1 to 4 and a straight-chain alkenyl group having 2 to 5 carbon atoms.
  • the compound represented by the general formula (M) preferably has no chlorine atom in the molecule.
  • the content of the compound represented by the general formula (M) containing a chlorine atom is preferably 3% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition, and 1% by mass. Or less, preferably 0.5% by mass or less, and substantially not contained.
  • substantially not contained means that only a compound containing a chlorine atom is unintentionally mixed into the liquid crystal composition, such as a compound generated as an impurity during the production of the compound.
  • the compound represented by General Formula (M) is preferably a compound selected from the group of compounds represented by General Formula (VIII), for example.
  • R 8 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 81 to X 85 each independently represents hydrogen.
  • Y 8 represents a fluorine atom or —OCF 3 .
  • the content of the compound represented by the general formula (VIII) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, image sticking. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment of the present invention.
  • the content of the compound is 4% to 40% by mass.
  • the content of the compound is 5% to 40% by mass.
  • the content of the compound is 6% to 40% by mass.
  • the content of the compound is 7% to 40% by mass.
  • the content of the compound is 8% to 40% by mass.
  • the content of the compound is 9% to 40% by mass.
  • the content of the compound is 10% to 40% by mass.
  • the content of the compound is 11% to 40% by mass.
  • the content of the compound is 12% to 40% by mass.
  • the content of the compound is 14% to 40% by mass.
  • the content of the compound is 15% to 40% by mass.
  • the content of the compound is 21% to 40% by mass.
  • the content of the compound is 23% to 40% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 2 to 40% by mass in one embodiment of the present invention.
  • the content of the compound is 2% to 30% by mass.
  • the content of the compound is 2% to 25% by mass.
  • the content of the compound is 2% to 21% by mass.
  • the content of the compound is 2% to 16% by mass.
  • the content of the compound is 2% to 12% by mass.
  • the content of the compound is 2% to 8% by mass.
  • the content of the compound is 2% to 5% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention maintains a high Tni and a liquid crystal composition with good temperature stability is required, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-1).
  • R 8 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 8 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (VIII-1) is specifically preferably a compound represented by the formula (26.1) to the formula (26.4), and the formula (26.1) Or the compound represented by Formula (26.2) is preferable, and the compound represented by Formula (26.2) is more preferable.
  • the content of the compound represented by the formula (26.1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence, and the like. On the other hand, it is preferably 1% by mass to 40% by mass, more preferably 1% by mass to 30% by mass, more preferably 1% by mass to 20% by mass, and more preferably 2% by mass to 15% by mass. It is more preferably 2% by mass or more and 10% by mass or less, and particularly preferably 2% by mass or more and 9% by mass or less.
  • 2% by mass to 7% by mass for example, 2% by mass to 6% by mass, 2% by mass to 5% by mass, 2% by mass to 4% by mass, 2% by mass to 3% by mass.
  • % Or less 3% to 9% by weight, 4% to 9% by weight, 5% to 9% by weight, and 6% to 9% by weight.
  • the content of the compound represented by the formula (26.2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at low temperatures, transition temperature, electrical reliability, birefringence, and the like. On the other hand, it is preferably 2% by mass or more and 40% by mass or less, more preferably 4% by mass or more and 30% by mass or less, still more preferably 4% by mass or more and 20% by mass or less, and particularly preferably 4% by mass or more and 15% by mass or less. preferable. Among particularly preferable ranges, for example, 3% by mass to 12% by mass, 4% by mass to 10% by mass, 4% by mass to 8% by mass, 4% by mass to 6% by mass, 6% by mass to 15% by mass. % Or less, 8% by mass or more and 15% by mass or less, 10% by mass or more and 15% by mass or less, and 12% by mass or more and 15% by mass or less.
  • the total content of the compound represented by the formula (26.1) and the compound represented by the formula (26.2) is preferably 5 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention. 10 to 30% by mass is more preferable, 10 to 25% by mass is still more preferable, and 10 to 20% by mass is particularly preferable.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-2).
  • R 8 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Or in another embodiment of this invention, they are three or more types.
  • the content of the compound represented by the general formula (VIII-2) is 2.5% by mass or more and 25% by mass or less in consideration of solubility at a low temperature, transition temperature, electrical reliability, birefringence and the like. It is preferably 3% by mass or more and 25% by mass or less, more preferably 4% by mass or 20% by mass or less, and preferably 5% by mass or more and 15% by mass or less, and 7% by mass. % To 10% by mass is more preferable.
  • the compound represented by the general formula (VIII-2) is preferably a compound represented by the formula (27.1) to the formula (27.4), and is represented by the formula (27.2). More preferably, it is a compound.
  • the compound represented by the general formula (VIII) is preferably a compound represented by the general formula (VIII-3).
  • R 8 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, it is two or more types.
  • the compound represented by the general formula (VIII-3) is specifically preferably a compound represented by the formula (26.11) to the formula (26.14). Or the compound represented by Formula (26.12) is preferable, and the compound represented by Formula (26.12) is more preferable.
  • the compound represented by the general formula (M) is preferably, for example, a compound represented by the general formula (IX).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 91 and X 92 are each independently hydrogen.
  • An atom or a fluorine atom Y 9 represents a fluorine atom, a chlorine atom or —OCF 3
  • U 9 represents a single bond, —COO— or —CF 2 O—.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of the present invention, there are four types. Furthermore, in another embodiment of this invention, they are five types. Furthermore, in another embodiment of this invention, they are six or more types.
  • the content of the compound represented by the general formula (IX) is low temperature solubility, transition temperature, electrical reliability, birefringence, process suitability, dripping marks, and burn-in. Therefore, it is necessary to appropriately adjust according to required performance such as dielectric anisotropy.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 70% by mass in one embodiment of the present invention. Further, for example, in another embodiment of the present invention, the content of the compound is 5% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 8% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 10% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 12% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 15% to 70% by mass. For example, in still another embodiment of the present invention, the content of the compound is 17% to 70% by mass.
  • the content of the compound is 20% to 70% by mass.
  • the content of the compound is 24% to 70% by mass.
  • the content of the compound is 28% to 70% by mass.
  • the content of the compound is 30% to 70% by mass.
  • the content of the compound is 34% to 70% by mass.
  • the content of the compound is 39% to 70% by mass.
  • the content of the compound is 40% to 70% by mass.
  • the content of the compound is 42% to 70% by mass.
  • the content of the compound is 45% to 70% by mass.
  • the content of the compound with respect to the total mass of the liquid crystal composition of the present invention is, for example, 3 to 70% by mass in one embodiment of the present invention.
  • the content of the compound is 3% to 60% by mass.
  • the content of the compound is 3% to 55% by mass.
  • the content of the compound is 3% to 50% by mass.
  • the content of the compound is 3% to 45% by mass.
  • the content of the compound is 3% to 40% by mass.
  • the content of the compound is 3% to 35% by mass.
  • the content of the compound is 3% to 30% by mass. In still another embodiment of the present invention, the content is 25% by mass. In still another embodiment of the present invention, the content of the compound is 3% to 20% by mass. In still another embodiment of the present invention, the content of the compound is 3% to 15% by mass. In still another embodiment of the present invention, the content of the compound is 3% to 10% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention requires a high Tni and a liquid crystal composition that does not easily cause burn-in, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-1).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 92 represents a hydrogen atom or a fluorine atom
  • Y 9 represents a fluorine atom or —OCF 3.
  • the kind of the compound used is, for example, one kind as one embodiment of the present invention. Or in another embodiment of the present invention, there are two types. Furthermore, in another embodiment of this invention, they are three types. Furthermore, in another embodiment of this invention, they are four or more types.
  • the compound represented by the general formula (IX-1) is preferably a compound represented by the general formula (IX-1-1).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-1-1) is preferably a preferable upper limit depending on the embodiment in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, and the like.
  • the lower limit of the content of the compound is preferably 1% by mass, more preferably 5% by mass, and the upper limit of the content of the compound is 25% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the upper limit of the content of the compound with respect to the total mass is preferably 25% by mass, more preferably 20% by mass, still more preferably 15% by mass, still more preferably 12% by mass, particularly preferably 10% by mass, 9% by mass is most preferred.
  • the upper limit of the total content of the two compounds relative to the total mass is preferably 25% by mass, more preferably 22% by mass, more preferably 20% by mass, and still more preferably 19% by mass.
  • it is preferable to use two compounds represented by the general formula (IX-1-1), and the compound represented by the general formula (IX-1-1) When it is desired to increase the content of, it is preferable to use the two compounds.
  • the content of the compound with respect to the total mass is 1 to 25% by mass in one embodiment, 2 to 20% by mass in another embodiment, 4 to 10% by mass in yet another embodiment, and yet another implementation. 10-30% by weight in the form, 14-20% by weight in yet another embodiment, 16-20% by weight in yet another embodiment, and 21-40% by weight in yet another embodiment.
  • the content of the compound is 1 to 40% by mass in one embodiment, 1 to 35% by mass in another embodiment, and still another implementation with respect to the total mass of the liquid crystal composition of the present invention. 1 to 30% by weight in a form, 1 to 25% by weight in yet another embodiment, 1 to 10% by weight in still another embodiment, 1 to 7% by weight in still another embodiment, or still further In this embodiment, it is 1 to 5% by mass.
  • the compound represented by the general formula (IX-1-1) is preferably a compound represented by the formula (28.1) to the formula (28.5), and the formula (28.3) and / or Or it is more preferable that it is a compound represented by Formula (28.5).
  • the content of the compound represented by the formula (28.3) is 1% by mass to 30% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. Is preferred. More preferable examples of the content are 2% by mass or more and 20% by mass or less, 2% by mass or more and 15% by mass or less, 2% by mass or more and 12% by mass or less, 2% by mass or more and 9% by mass or less, 2% by mass or more and 5% by mass. % By mass or less, or 4% by mass to 20% by mass, 6% by mass to 20% by mass, 8% by mass to 20% by mass, 10% by mass to 20% by mass, 15% by mass to 20% by mass .
  • the content of the compound represented by the formula (28.5) is determined in consideration of solubility at low temperatures, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 2% by mass or more and 25% by mass or less, more preferably 4% by mass or more and 20% by mass or less, and more preferably 5% by mass or more and 15% by mass or less, and preferably 7% by mass or more and 10% by mass % Or less is particularly preferable.
  • the compound represented by the general formula (IX-1) is preferably a compound represented by the general formula (IX-1-2).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-1-2) is preferably 1% by mass or more and 30% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 30% by weight, more preferably 8% to 30% by weight, preferably 10% to 25% by weight, preferably 14% to 22% by weight, preferably 16% to 30% by weight. 20 mass% or less is especially preferable.
  • the compound represented by the general formula (IX-1-2) is preferably a compound represented by the formula (29.1) to the formula (29.4), and the formula (29.2) and / or Or it is more preferable that it is a compound represented by Formula (29.4).
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-2).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 91 and X 92 are each independently hydrogen.
  • one embodiment of the present invention has one type, another embodiment has two types, yet another embodiment has three types, yet another embodiment has four types, and yet another embodiment has five types, In still another embodiment, six or more types are combined.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-1).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-2-1) is preferably an upper limit preferable for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. There is a value and a lower limit.
  • the content of the compound is 1 to 40% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • the content of the compound is 2 to 40% by mass.
  • the content of the compound is 4 to 40% by mass.
  • the content of the compound is 10 to 10%.
  • the content of the compound is 14 to 40% by mass.
  • the content of the compound is 16 to 40% by mass.
  • the content of the compound is 14 to 40% by mass.
  • the content of the compound is 21 to 40% by mass.
  • the content of the compound is 1 to 40% by mass in another embodiment of the present invention, and in another embodiment, the content of the compound is 1 to 35% by mass. In this embodiment, the content of the compound is 1 to 30% by mass. In still another embodiment, the content of the compound is 1 to 25% by mass. In still another embodiment, the content of the compound is 1 to 30% by mass. In still another embodiment, the content of the compound is 1 to 20% by mass. In still another embodiment, the content of the compound is 1 to 10% by mass. In still another embodiment, the content of the compound is 1 to 20% by mass. The content of the compound is 1 to 7% by mass, and in still another embodiment, the content of the compound is 1 to 5% by mass.
  • the compound represented by the general formula (IX-2-1) is preferably a compound represented by the formula (30.1) to the formula (30.4), from the formula (30.1) to the formula A compound represented by (30.2) is more preferable.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-2).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound is 1 to 40% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 2 to 40% by mass. %, In still another embodiment the content of the compound is 4-40% by weight, in yet another embodiment the content of the compound is 10-40% by weight, and in yet another embodiment the content of the compound In still another embodiment, the content is 14-40% by mass, and in still another embodiment, the content of the compound is 21-40% by mass. In addition, for example, in one embodiment of the present invention, the content of the compound is 1 to 40% by mass in another embodiment of the present invention, and in another embodiment, the content of the compound is 1 to 35% by mass.
  • the content of the compound is 1 to 30% by mass. In still another embodiment, the content of the compound is 1 to 25% by mass. In still another embodiment, the content of the compound is 1 to 30% by mass. In still another embodiment, the content of the compound is 1 to 15% by mass. In still another embodiment, the content of the compound is 1 to 12% by mass. In still another embodiment, the content of the compound is 1 to 15% by mass. The content of the compound is 1 to 8% by mass, and in still another embodiment, the content of the compound is 1 to 4% by mass.
  • the compound represented by the general formula (IX-2-2) is preferably a compound represented by the formula (31.1) to the formula (31.4), from the formula (31.1) to the formula
  • the compound represented by (31.4) is more preferable.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-3).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-2-3) is preferably 1% by mass or more and 30% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 20% by mass is more preferable, 6% to 15% by mass is preferable, and 8% to 10% by mass is more preferable.
  • the compound represented by the general formula (IX-2-3) is preferably a compound represented by the formula (32.1) to the formula (32.4), and the formula (32.2) and / or Or it is more preferable that it is a compound represented by Formula (32.4).
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-4).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-2-4) is preferably 1% by mass or more and 30% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 20% by mass is more preferable, 6% to 15% by mass is preferable, and 8% to 10% by mass is particularly preferable.
  • the compound represented by the general formula (IX-2-4) is preferably a compound represented by the formula (33.1) to the formula (33.6), and the formula (33.1) and / or Or it is more preferable that it is a compound represented by Formula (33.3).
  • the content of the compound represented by the above formula (33.1) is preferably 1% by mass or more and 11% by mass or less, and preferably 3% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 8 mass% or less is more preferable.
  • the compound represented by the general formula (IX-2) is preferably a compound represented by the general formula (IX-2-5).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound is 4 to 45% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 8 to 45% by mass. In still another embodiment, the content of the compound is 12 to 45% by mass. In still another embodiment, the content of the compound is 21 to 45% by mass. In still another embodiment, the content of the compound is In still another embodiment, the content of the compound is 31-45% by mass, and in still another embodiment, the content of the compound is 34-45% by mass. Also, for example, in one embodiment of the present invention, the content of the compound is 4 to 45% by mass in another embodiment of the present invention, and in another embodiment, the content of the compound is 4 to 40% by mass.
  • the content of the compound is 4 to 35% by mass, and in still another embodiment, the content of the compound is 4 to 32% by mass. In still another embodiment, the content of the compound is 4 to In still another embodiment, the content of the compound is 4 to 13% by mass. In still another embodiment, the content of the compound is 4 to 9% by mass. In still another embodiment, the content of the compound is 4 to 13% by mass. The content of the compound is 4 to 8% by mass, and in still another embodiment, the content of the compound is 4 to 5% by mass.
  • the liquid crystal composition of the present invention maintains a low viscosity and a liquid crystal composition having a high response speed is required, it is preferable to lower the lower limit value and lower the upper limit value. Furthermore, when the liquid crystal composition of the present invention requires a high Tni and a liquid crystal composition that does not easily cause burn-in, it is preferable to lower the lower limit and lower the upper limit. Further, when it is desired to increase the dielectric anisotropy in order to keep the driving voltage low, it is preferable to increase the upper limit value while increasing the lower limit value.
  • the compound represented by the general formula (IX-2-5) is preferably a compound represented by the formula (34.1) to the formula (34.7), the formula (34.1), the formula A compound represented by (34.2), formula (34.3) and / or formula (34.5) is more preferable.
  • the compound represented by the general formula (IX) is preferably a compound represented by the general formula (IX-3).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 91 and X 92 are each independently hydrogen.
  • the compound represented by the general formula (IX-3) is preferably a compound represented by the general formula (IX-3-1).
  • R 9 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (IX-3-1) is preferably 3% by mass or more and 30% by mass or less, and 7% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 30% by mass is more preferable, 13% to 20% by mass is preferable, and 15% to 18% by mass is particularly preferable.
  • the compound represented by the general formula (IX-3-1) is preferably a compound represented by the formula (35.1) to the formula (35.4), and the formula (35.1) and / or Or it is more preferable that it is a compound represented by Formula (35.2).
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (X).
  • the compound represented by general formula (i) is excluded.
  • X 101 to X 104 each independently represents a fluorine atom or a hydrogen atom
  • Y 10 represents a fluorine atom, a chlorine atom or —OCF 3
  • Q 10 represents a single bond or —CF 2 O—.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • a 101 and A 102 are each independently 1,4 -Cyclohexylene group, 1,4-phenylene group or
  • the hydrogen atom on the 1,4-phenylene group may be substituted with a fluorine atom.
  • a fluorine atom there is no restriction
  • the content of the compound represented by the general formula (X) has an upper limit value and a lower limit value for each embodiment in consideration of properties such as solubility at low temperatures, transition temperature, electrical reliability, and birefringence. is there.
  • the content of the compound is 2 to 45% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 3 to 45% by mass.
  • the content of the compound is 6 to 45% by mass.
  • the content of the compound is 8 to 45% by mass.
  • the content of the compound is In still another embodiment, the content of the compound is 11-45% by mass, and in still another embodiment, the content of the compound is 12-45% by mass. In still another embodiment, the content of the compound is 18% to 45% by mass. In still another embodiment, the content of the compound is 19% to 45% by mass. In still another embodiment, the content of the compound is 23% to 45% by mass. In still another embodiment, the content of the compound is 25% to 45% by mass. In addition, for example, in one embodiment of the present invention, the content of the compound is 2 to 45% by mass with respect to the total mass, and in another embodiment, the content of the compound is 2 to 35% by mass. In this embodiment, the content of the compound is 2 to 30% by mass.
  • the content of the compound is 2 to 25% by mass. In still another embodiment, the content of the compound is 2 to 2% by mass. In still another embodiment, the content of the compound is 2 to 13% by mass. In still another embodiment, the content of the compound is 2 to 9% by mass. In still another embodiment, the content of the compound is 2 to 13% by mass. The content of the compound is 2 to 6% by mass, and in still another embodiment, the content of the compound is 2 to 3% by mass.
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1). However, the compound represented by general formula (i) is excluded.
  • X 101 to X 103 each independently represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group.
  • X 101 to X 103 each independently represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group.
  • the content of the compound is 2 to 40% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 3 to 40% by mass. %, In still another embodiment the content of the compound is 5-40% by weight, in yet another embodiment the content of the compound is 6-40% by weight, and in yet another embodiment the content of the compound In still another embodiment, the content of the compound is 8 to 40% by mass, and in still another embodiment, the content of the compound is 9 to 40% by mass. In still another embodiment, the content of the compound is 13% to 40% by mass. In still another embodiment, the content of the compound is 18% to 40% by mass. In still another embodiment, the content of the compound is 23% to 40% by mass.
  • the content of the compound is 2 to 40% by mass with respect to the total mass, and in another embodiment, the content of the compound is 2 to 30% by mass. In another embodiment, the content of the compound is 2 to 25% by mass. In still another embodiment, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 2% by mass. 15% by weight, in yet another embodiment the content of the compound is 2-10% by weight, in yet another embodiment the content of the compound is 2-6% by weight, and in yet another embodiment the content is The content of the compound is 2 to 4% by mass.
  • the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-1).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound is 2 to 30% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 5 to 30%. In still another embodiment, the content of the compound is 7 to 30% by mass. In still another embodiment, the content of the compound is 9 to 30% by mass. In still another embodiment, the content of the compound is The content is 12-30% by mass, and in still another embodiment, the content of the compound is 15-30% by mass, and in still another embodiment, the content of the compound is 18-30% by mass. In still another embodiment, the content of the compound is 21% to 30% by mass.
  • the content of the compound is 3 to 30% by mass with respect to the total mass, and in another embodiment, the content of the compound is 3 to 20% by mass. In another embodiment, the content of the compound is 3 to 13% by mass. In still another embodiment, the content of the compound is 3 to 10% by mass. In still another embodiment, the content of the compound is 3 to 3% by mass. 7% by mass.
  • the compounds represented by the general formula (X-1-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (36.1) to (36.4). Among them, it is preferable to contain a compound represented by formula (36.1) and / or formula (36.2).
  • the content of the compound represented by the formula (36.2) is preferably 2% by mass or more and 7% by mass or less.
  • the compound represented by the general formula (X-1) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-1-3).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-1-3) is preferably 1% by mass or more, more preferably 2% by mass or more, based on the total mass of the liquid crystal composition of the present invention.
  • the mass% or more is more preferable.
  • the maximum ratio is preferably 20% by mass or less, preferably 16% by mass or less, more preferably 12% by mass or less. 10 mass% or less is especially preferable.
  • the compounds represented by the general formula (X-1-3) used in the liquid crystal composition of the present invention are specifically the compounds represented by the formulas (38.1) to (38.4).
  • the content of the compound represented by the formula (38.2) is preferably 1% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is more preferably 2% by mass or less and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass. % Or less, more preferably 3% by mass or more and 8% by mass or less, and particularly preferably 4% by mass or more and 5% by mass or less.
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2). However, the compound represented by general formula (i) is excluded.
  • X 102 to X 103 each independently represents a fluorine atom or a hydrogen atom
  • Y 10 represents a fluorine atom, a chlorine atom or —OCF 3
  • R 10 represents an alkyl group having 1 to 5 carbon atoms
  • the compound represented by the general formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2-1).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-2-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. 3 mass% or more and 20 mass% or less is preferable, 5 mass% or more and 16 mass% or less are more preferable, 5 mass% or more and 12 mass% or less are preferable, 6 mass% or more and 10 mass% or less are especially preferable. .
  • the compounds represented by the general formula (X-2-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (39.1) to (39.4).
  • the content of the compound represented by the formula (39.2) is preferably 5% by mass or more and 6% by mass or less.
  • the content of the compound represented by the formula (39.2) is preferably 1% by mass or more and 35% by mass or less with respect to the total mass of the liquid crystal composition of the present invention. It is more preferably 2% by mass or less and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass. % Or more, more preferably 4% by mass or more and 8% by mass or less, and particularly preferably 4% by mass or more and 6% by mass or less.
  • the compound represented by the general formula (X-2) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-2-2).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-2-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. 3 mass% or more and 20 mass% or less is preferable, 6 mass% or more and 16 mass% or less is more preferable, 9 mass% or more and 12 mass% or less is preferable, 9 mass% or more and 10 mass% or less are especially preferable. .
  • the compounds represented by the general formula (X-2-2) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (40.1) to (40.4). In particular, it is preferable to contain a compound represented by the formula (40.2).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-3). However, the compound represented by general formula (i) is excluded.
  • X 102 to X 103 each independently represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 4 or 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-4).
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (X-4) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-1).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-4-1) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 2% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less. .
  • the compound represented by the general formula (X-4-1) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (42.1) to the formula (42.4). In particular, it is more preferable to contain a compound represented by the formula (42.3).
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-2).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-4-2) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 2% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less. .
  • the compounds represented by the general formula (X-4-2) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (42.11) to (42.14).
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-4-3).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-4-3) is based on the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably 2% by mass or more and 20% by mass or less, more preferably 5% by mass or more and 17% by mass or less, more preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 13% by mass or less. .
  • the compound represented by the general formula (X-4-3) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (42.21) to the formula (42.24).
  • the compound represented by the general formula (X) is preferably a compound represented by the general formula (X-5).
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • X 102 represents a fluorine atom or a hydrogen atom
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (X-5) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-5-1).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compounds represented by the general formula (X-5-1) used in the liquid crystal composition of the present invention are specifically compounds represented by the formulas (43.1) to (43.4). In particular, it is more preferable to contain a compound represented by the formula (43.2).
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-6).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-6) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is a value.
  • the lower limit of the content of the compound is preferably 1% by mass, more preferably 2% by mass, and the upper limit of the content of the compound is 25% by mass with respect to the total mass of the liquid crystal composition of the present invention.
  • 20 mass% is more preferable, 18 mass% is further more preferable, and 16 mass% is especially preferable.
  • the upper limit of the content of the compound with respect to the total mass is preferably 15% by mass, more preferably 12% by mass, still more preferably 10% by mass, particularly preferably 8% by mass, and most preferably 7% by mass. preferable.
  • the compound represented by the general formula (X-6) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (44.1) to the formula (44.4).
  • the content of the compound represented by the formula (44.1) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less. % Or less is particularly preferable.
  • the content of the compound represented by the formula (44.2) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less. % Or less is particularly preferable.
  • the total content of the compound represented by the formula (44.1) and the compound represented by the formula (44.2) is low-temperature solubility, transition temperature, electrical Considering reliability and the like, it is preferably 5% by mass or more and 45% by mass or less, more preferably 7% by mass or more and 25% by mass or less, and more preferably 7% by mass or more with respect to the total mass of the liquid crystal composition of the present invention. 20 mass% or less is more preferable. Among particularly preferable ranges, for example, 7% by mass to 15% by mass, 7% by mass to 12% by mass, 7% by mass to 10% by mass, 10% by mass to 15% by mass, 12% by mass to 15% by mass. % Or less.
  • the compound represented by the general formula (X) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (X-7).
  • R 10 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (X-7) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is a value.
  • the content of the compound is 4 to 30% by mass with respect to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 5 to 30%. In still another embodiment, the content of the compound is 6 to 30% by mass. In still another embodiment, the content of the compound is 8 to 30% by mass. In still another embodiment, the content of the compound is The content is 9-30% by mass, and in still another embodiment, the content of the compound is 11-30% by mass, and in still another embodiment, the content of the compound is 14-30% by mass. In still another embodiment, the content of the compound is 18% to 30% by mass.
  • the content of the compound is 4 to 30% by mass with respect to the total mass, and in another embodiment, the content of the compound is 4 to 20% by mass. In this embodiment, the content of the compound is 4 to 13% by mass, and in still another embodiment, the content of the compound is 4 to 10% by mass, and in still another embodiment, the content of the compound is 4 to 4% by mass. 7% by mass.
  • the compound represented by the general formula (X-7) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (44.11) to the formula (44.14).
  • the compound represented by the general formula (M) is preferably a compound selected from the group represented by the general formula (XI).
  • X 111 to X 117 each independently represents a fluorine atom or a hydrogen atom, at least one of X 111 to X 117 represents a fluorine atom, R 11 represents an alkyl group having 1 to 5 carbon atoms, Represents an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and Y 11 represents a fluorine atom or —OCF 3.
  • the content of the compound represented by the general formula (XI) includes an upper limit value and a lower limit value for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is.
  • the content of the compound is 2-30% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 4-30. In still another embodiment, the content of the compound is 5 to 30% by mass. In still another embodiment, the content of the compound is 7 to 30% by mass. In still another embodiment, the content of the compound is 5 to 30% by mass. The content is 9-30% by mass, and in still another embodiment, the content of the compound is 10-30% by mass, and in still another embodiment, the content of the compound is 12-30% by mass. In still another embodiment, the content of the compound is 13% to 30% by mass. In still another embodiment, the content of the compound is 15% to 30% by mass. In still another embodiment, the content of the compound is 18% to 30% by mass.
  • the content of the compound is 2 to 30% by mass with respect to the total mass, and in another embodiment, the content of the compound is 2 to 25% by mass. In an embodiment of the present invention, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 15% by mass. In still another embodiment, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 5% by mass.
  • the liquid crystal composition of the present invention When used for a liquid crystal display device having a small cell gap, it is suitable to increase the content of the compound represented by the general formula (XI). When used for a liquid crystal display element with a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XI). Further, when used for a liquid crystal display element used in a low temperature environment, it is suitable to reduce the content of the compound represented by the general formula (XI). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XI).
  • the compound represented by the general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XI-1).
  • R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XI-1) is 1 with respect to the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferable that it is mass% or more and 20 mass% or less, 3 mass% or more and 20 mass% or less are more preferable, 4 mass% or more and 20 mass% or less are preferable, 5 mass% or more and 15 mass% or less are preferable, 7 A mass% or more and 12 mass% or less is particularly preferable.
  • the compound represented by the general formula (XI-1) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (45.1) to the formula (45.4). Among them, it is preferable to contain a compound represented by formula (45.2) to formula (45.4), and it is more preferable to contain a compound represented by formula (45.2).
  • the content of the compound represented by the formula (45.2) is determined in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.
  • % Or less is particularly preferable.
  • particularly preferable ranges for example, 3% by mass to 10% by mass, 3% by mass to 8% by mass, 3% by mass to 6% by mass, 3% by mass to 4% by mass, 4% by mass to 10% by mass.
  • % Or less 6 mass% or more and 10 mass% or less, 8 mass% or more and 10 mass% or less.
  • the content of the compound represented by the formula (45.3) is determined in consideration of solubility at low temperature, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less.
  • % Or less is particularly preferable.
  • particularly preferable ranges for example, 3% by mass to 10% by mass, 3% by mass to 8% by mass, 3% by mass to 6% by mass, 3% by mass to 4% by mass, 4% by mass to 10% by mass.
  • % Or less 6 mass% or more and 10 mass% or less, 8 mass% or more and 10 mass% or less.
  • the content of the compound represented by formula (45.4) is determined in consideration of solubility at low temperatures, transition temperature, electrical reliability, and the like.
  • the total mass is preferably 1% by mass or more and 25% by mass or less, more preferably 3% by mass or more and 20% by mass or less, and more preferably 3% by mass or more and 15% by mass or less, and more preferably 3% by mass or more and 10% by mass or less. % Or less is particularly preferable.
  • the compound represented by the general formula (XI) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XI-2).
  • R 110 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XI-2) is 1 with respect to the total mass of the liquid crystal composition of the present invention in consideration of solubility at a low temperature, transition temperature, electrical reliability, and the like. It is preferably from 20% by mass to 20% by mass, more preferably from 3% by mass to 20% by mass, further preferably from 4% by mass to 20% by mass, further preferably from 6% by mass to 15% by mass, A mass% or more and 12 mass% or less is particularly preferable.
  • the compound represented by the general formula (XI-2) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (45.11) to the formula (45.14). Among them, it is preferable to contain a compound represented by formula (45.12) to formula (45.14), and it is more preferable to contain a compound represented by formula (45.12).
  • the compound represented by the general formula (M) is preferably a compound represented by the general formula (XII).
  • X 121 to X 126 each independently represents a fluorine atom or a hydrogen atom, and R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group, and Y 12 represents a fluorine atom or —OCF 3.
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group
  • Y 12 represents a fluorine atom or —OCF 3.
  • the compound represented by the general formula (XII) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XII-1).
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XII-1) is preferably 1% by mass or more and 15% by mass or less, preferably 2% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 10 mass% or less is more preferable, 3 mass% or more and 8 mass% or less are preferable, and 4 mass% or more and 6 mass% or less are especially preferable.
  • the compound represented by the general formula (XII-1) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (46.1) to the formula (46.4).
  • the compound represented by the general formula (XII) is preferably a compound represented by the general formula (XII-2).
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 12 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XII-2) is preferably 1% by mass or more and 20% by mass or less, preferably 3% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 20 mass% or less is more preferable, 4 mass% or more and 17 mass% or less are preferable, 6 mass% or more and 15 mass% or less are preferable, 9 mass% or more and 13 mass% or less are especially preferable.
  • the compound represented by the general formula (XII-2) used in the liquid crystal composition of the present invention is specifically a compound represented by the formula (47.1) to the formula (47.4).
  • the compound represented by the general formula (M) is preferably a compound represented by the following general formula (XIII). However, the compound represented by general formula (i) is excluded.
  • X 131 to X 135 each independently represent a fluorine atom or a hydrogen atom, and R 13 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group, and Y 13 represents a fluorine atom or —OCF 3.
  • R 13 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or 1 to 4 represents an alkoxy group
  • Y 13 represents a fluorine atom or —OCF 3.
  • the content of the compound represented by the general formula (XIII) has an upper limit value and a lower limit value for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. is there.
  • the content of the compound is 2 to 30% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 4 to 30%. In still another embodiment, the content of the compound is 5 to 30% by mass. In still another embodiment, the content of the compound is 7 to 30% by mass. In still another embodiment, the content of the compound is 5 to 30% by mass. The content is 9-30% by mass, and in still another embodiment, the content of the compound is 11-30% by mass, and in still another embodiment, the content of the compound is 13-30% by mass. In still another embodiment, the content of the compound is 14% to 30% by mass. In still another embodiment, the content of the compound is 16% to 30% by mass. In still another embodiment, the content of the compound is 20% to 30% by mass.
  • the content of the compound is 2 to 30% by mass with respect to the total mass, and in another embodiment, the content of the compound is 2 to 25% by mass. In an embodiment of the present invention, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 15% by mass. In still another embodiment, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 5% by mass.
  • the liquid crystal composition of the present invention When the liquid crystal composition of the present invention is used for a liquid crystal display device having a small cell gap, it is preferable to increase the content of the compound represented by the general formula (XIII). In addition, when used for a liquid crystal display element with a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIII). In addition, when used for a liquid crystal display element used in a low temperature environment, it is suitable to reduce the content of the compound represented by the general formula (XIII). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIII).
  • the compound represented by the general formula (XIII) is preferably a compound represented by the general formula (XIII-1).
  • R 13 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the compound represented by the general formula (XIII-1) is preferably contained in an amount of 1% by mass or more and 25% by mass or less, preferably 3% by mass or more and 25% by mass or less based on the total mass of the liquid crystal composition of the present invention. Is preferably contained in an amount of 5% by mass or more and 20% by mass or less, particularly preferably 10% by mass or more and 15% by mass or less.
  • the compound represented by the general formula (XIII-1) is preferably a compound represented by the formula (48.1) to the formula (48.4), and is represented by the formula (48.2).
  • a compound is preferred.
  • the compound represented by the general formula (M) is preferably a compound selected from the group of compounds represented by the general formula (XIV). However, the compound represented by general formula (i) is excluded.
  • R 14 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms
  • X 141 to X 144 are each independently Represents a fluorine atom or a hydrogen atom
  • Y 14 represents a fluorine atom, a chlorine atom or —OCF 3
  • Q 14 represents a single bond, —COO— or —CF 2 O—
  • m 14 is 0 or 1.
  • the content of the compound represented by the general formula (XIV) is an upper limit value and a lower limit value for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is.
  • the content of the compound is 3 to 40% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 7 to 40%. In still another embodiment, the content of the compound is 8 to 40% by mass. In still another embodiment, the content of the compound is 11 to 40% by mass. In still another embodiment, the content of the compound is The content is 12 to 40% by mass, and in still another embodiment, the content of the compound is 16 to 40% by mass, and in still another embodiment, the content of the compound is 18 to 40% by mass. In still another embodiment, the content of the compound is 19% to 40% by mass. In still another embodiment, the content of the compound is 22% to 40% by mass. In still another embodiment, the content of the compound is 25% to 40% by mass.
  • the content of the compound is 3 to 40% by mass in another embodiment of the present invention, and in another embodiment, the content of the compound is 3 to 35% by mass. In an embodiment of the present invention, the content of the compound is 3 to 30% by mass. In still another embodiment, the content of the compound is 3 to 25% by mass. In still another embodiment, the content of the compound is 3 to 30% by mass. In still another embodiment, the content of the compound is 3 to 15% by mass.
  • the liquid crystal composition of the present invention When used for a liquid crystal display element having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV).
  • the compound represented by the general formula (XIV) is preferably a compound represented by the general formula (XIV-1).
  • R 14 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms
  • Y 14 represents a fluorine atom, a chlorine atom, or —OCF 3
  • 1 type to 3 types in consideration of solubility at low temperature, transition temperature, electrical reliability, birefringence, etc.
  • the compound represented by the general formula (XIV-1) is preferably a compound represented by the general formula (XIV-1-1).
  • R 14 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.
  • the content of the compound represented by the general formula (XIV-1-1) is preferably 2% by mass or more, more preferably 3% by mass or more with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 7 mass% or more, preferably 10 mass% or more, particularly preferably 18 mass% or more.
  • the maximum ratio is preferably 30% by mass or less, preferably 27% by mass or less, more preferably 24% by mass or less. , Less than 21% by mass is particularly preferable.
  • the compound represented by the general formula (XIV-1-1) is specifically preferably a compound represented by the formula (51.1) to the formula (51.4). It is more preferable to contain the compound represented by this.
  • the compound represented by the general formula (XIV-1) is preferably a compound represented by the general formula (XIV-1-2).
  • the content of the compound represented by the general formula (XIV-1-2) is preferably 1% by mass or more and 15% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the content is more preferably 13% by mass or less, more preferably 5% by mass or more and 11% by mass or less, and particularly preferably 7% by mass or more and 9% by mass or less.
  • the compound represented by the general formula (XIV-1-2) is specifically preferably a compound represented by the formula (52.1) to the formula (52.4), among which the formula (52. It is more preferable to contain the compound represented by 4).
  • the compound represented by the general formula (XIV) is preferably a compound represented by the general formula (XIV-2). However, excluding the compound represented by (i)
  • R 14 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms
  • X 141 to X 144 each independently represents fluorine.
  • Y 14 represents a fluorine atom, a chlorine atom or —OCF 3.
  • the content of the compound represented by the general formula (XIV-2) is an upper limit and a lower limit for each embodiment in consideration of properties such as solubility at low temperature, transition temperature, electrical reliability, and birefringence. There is a value.
  • the content of the compound is 3 to 40% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 7 to 40%. In still another embodiment, the content of the compound is 8 to 40% by mass. In still another embodiment, the content of the compound is 10 to 40% by mass. In still another embodiment, the content of the compound is The content is 11 to 40% by mass, and in still another embodiment, the content of the compound is 12 to 40% by mass, and in still another embodiment, the content of the compound is 18 to 40% by mass. In still another embodiment, the content of the compound is 19% to 40% by mass. In still another embodiment, the content of the compound is 21% to 40% by mass. In still another embodiment, the content of the compound is 22% to 40% by mass.
  • the content of the compound is 3 to 40% by mass in another embodiment of the present invention, and in another embodiment, the content of the compound is 3 to 35% by mass. In an embodiment of the present invention, the content of the compound is 3 to 25% by mass. In still another embodiment, the content of the compound is 3 to 20% by mass. In still another embodiment, the content of the compound is 3 to In still another embodiment, the content of the compound is 3 to 10% by mass.
  • the liquid crystal composition of the present invention When used for a liquid crystal display element having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV-2). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV-2).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-1).
  • R 14 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XIV-2-1) is preferably 1% by mass or more and 15% by mass or less based on 100% by mass of the total amount of the liquid crystal composition of the present invention. % To 13% by mass is more preferable, 5% to 11% by mass is preferable, and 7% to 9% by mass is particularly preferable.
  • the compound represented by the general formula (XIV-2-1) is specifically preferably a compound represented by the formula (53.1) to the formula (53.4), among which the formula (53. It is more preferable to contain the compound represented by 4).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-2).
  • the content of the compound represented by the general formula (XIV-2-2) is preferably 2% by mass or more and 20% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. It is more preferably 18% by mass or less, preferably 9% by mass or more and 15% by mass or less, more preferably 10% by mass or more and 14% by mass or less, and particularly preferably 10% by mass or more and 12% by mass or less.
  • the compound represented by the general formula (XIV-2-2) is specifically preferably a compound represented by the formula (54.1) to the formula (54.4), among which the formula (54. It is more preferable to contain the compound represented by 2) and / or Formula (54.4).
  • the content of the compound represented by the formula (54.2) is preferably 5% by mass or more and 35% by mass or less based on the total mass of the liquid crystal composition of the present invention. It is more preferably 5% by mass or less and 25% by mass or less, more preferably 5% by mass or more and 22% by mass or less, more preferably 8% by mass or more and 20% by mass or less, and more preferably 10% by mass or more and 17% by mass. % Or less, more preferably 10% by mass or more and 15% by mass or less, and particularly preferably 10% by mass or more and 12% by mass or less.
  • the content of the compound represented by the formula (54.4) is 4% by mass to 35% by mass with respect to the total mass of the liquid crystal composition of the present invention. Preferably, it is more preferably 5% by mass or less and 25% by mass or less, and more preferably 5% by mass or more and 22% by mass or less.
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-3).
  • R 14 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound represented by the general formula (XIV-2-3) is preferably 5% by mass or more and 30% by mass or less, and 9% by mass with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention. 27 mass% or less is more preferable, 12 mass% or more and 24 mass% or less are preferable, 12 mass% or more and 20 mass% or less are especially preferable.
  • the compound represented by the general formula (XIV-2-3) is specifically preferably a compound represented by the formula (55.1) to the formula (55.4), among which the formula (55. It is more preferable to contain the compound represented by 2) and / or Formula (55.4).
  • the compound represented by the general formula (XIV-2) is preferably a compound represented by the general formula (XIV-2-4).
  • R 14 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • R 14 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms.
  • the content of the compound is 2 to 35% by mass relative to the total mass of the liquid crystal composition of the present invention, and in another embodiment, the content of the compound is 5 to 35%. In still another embodiment, the content of the compound is 8 to 35% by mass. In still another embodiment, the content of the compound is 9 to 35% by mass. In still another embodiment, the content of the compound is In still another embodiment, the content of the compound is 18 to 35% by mass, and in still another embodiment, the content of the compound is 21 to 35% by mass. In still another embodiment, the content of the compound is 22% to 35% by mass. In still another embodiment, the content of the compound is 24% to 35% by mass.
  • the content of the compound is 2 to 35% by mass, and in another embodiment, the content of the compound is 2 to 30% by mass, In another embodiment, the content of the compound is 2 to 25% by mass. In still another embodiment, the content of the compound is 2 to 20% by mass. In still another embodiment, the content of the compound is 2 to 2% by mass. In still another embodiment, the content of the compound is 2 to 10% by mass. In still another embodiment, the content of the compound is 8% to 10% by mass.
  • liquid crystal composition of the present invention When used for a liquid crystal display device having a low driving voltage, it is suitable to increase the content of the compound represented by the general formula (XIV-2-4). In the case of a liquid crystal composition used for a liquid crystal display device having a high response speed, it is suitable to reduce the content of the compound represented by the general formula (XIV-2-4).
  • the compound represented by the general formula (XIV-2-4) is specifically preferably a compound represented by the formula (56.1) to the formula (56.4), among which the formula (56. It is more preferable to contain the compound represented by 1), Formula (56.2), and Formula (56.4).
  • the content of the compound represented by the formula (56.2) is preferably 8% by mass or more and 10% by mass or less with respect to 100% by mass of the total amount of the liquid crystal composition of the present invention.
  • the compound represented by the general formula (XIV) used in the liquid crystal composition of the present invention is preferably a compound represented by the general formula (XIV-3).
  • R 14 represents an alkyl group having 1 to 7 carbon atoms, an alkenyl group having 2 to 7 carbon atoms, or an alkoxy group having 1 to 7 carbon atoms.
  • the content of the compound represented by the general formula (XIV-3) is 1 mass relative to the total amount of the liquid crystal composition of the present invention. % To 15% by mass, preferably 4% to 15% by mass, more preferably 4% to 13% by mass, more preferably 4% to 11% by mass, and more preferably 4% by mass. The content is particularly preferably 9% by mass or less.
  • the compound used in the present invention does not have a peracid (—CO—OO—) structure in the molecule.
  • a compound having a carbonyl group when importance is attached to the reliability and long-term stability of the liquid crystal composition, it is preferable not to use a compound having a carbonyl group.
  • a compound in which a chlorine atom is substituted when importance is attached to stability by UV irradiation, it is desirable not to use a compound in which a chlorine atom is substituted. It is also preferable that only the compounds in which all the ring structures in the molecule are 6-membered rings.
  • the liquid crystal composition of the present invention preferably does not contain a compound having a structure in which oxygen atoms such as a peracid (—CO—OO—) structure are bonded in the molecule.
  • the content of the compound having a carbonyl group is preferably 5% by mass or less with respect to the total mass of the composition, and 3% by mass or less. More preferably, it is more preferable to set it as 1 mass% or less, and it is most preferable not to contain substantially.
  • the content of the compound substituted with chlorine atoms is preferably 15% by mass or less, more preferably 10% by mass or less, based on the total mass of the composition.
  • the content of a compound in which all the ring structures in the molecule are 6-membered rings is 80 It is preferably at least mass%, more preferably at least 90 mass%, even more preferably at least 95 mass%, and the liquid crystal is composed only of a compound having substantially all 6-membered ring structures in the molecule. Most preferably it constitutes a composition.
  • the content of the compound having a cyclohexenylene group as a ring structure is determined based on the total mass of the composition.
  • the content is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably substantially not contained.
  • the content of a compound having a 2-methylbenzene-1,4-diyl group in the molecule, in which a hydrogen atom may be substituted with a halogen may be reduced.
  • the content of the compound having a 2-methylbenzene-1,4-diyl group in the molecule is preferably 10% by mass or less, and preferably 5% by mass or less based on the total mass of the composition. Is more preferable, and it is still more preferable not to contain substantially.
  • the alkenyl group when the compound contained in the composition of the first embodiment of the present invention has an alkenyl group as a side chain, when the alkenyl group is bonded to cyclohexane, the alkenyl group has 2 to 5 carbon atoms.
  • the alkenyl group is bonded to benzene, the number of carbon atoms of the alkenyl group is preferably 4 to 5, and the unsaturated bond of the alkenyl group and benzene are directly bonded. Preferably not.
  • the liquid crystal composition of the present invention may contain a polymerizable compound in order to produce a liquid crystal display element such as a PS mode, a transverse electric field type PSA mode, or a transverse electric field type PSVA mode.
  • a polymerizable compound such as a PS mode, a transverse electric field type PSA mode, or a transverse electric field type PSVA mode.
  • the polymerizable compound that can be used include a photopolymerizable monomer that undergoes polymerization by energy rays such as light.
  • the structure has, for example, a liquid crystal skeleton in which a plurality of six-membered rings such as biphenyl derivatives and terphenyl derivatives are connected. Examples thereof include a polymerizable compound. More specifically, the general formula (XX)
  • X 201 and X 202 each independently represent a hydrogen atom or a methyl group
  • Sp 201 and Sp 202 are each independently a single bond, an alkylene group having 1 to 8 carbon atoms, or —O— (CH 2 ) s — (wherein s represents an integer of 2 to 7, Represents an aromatic ring).
  • X 201 and X 202 are each preferably a diacrylate derivative that represents a hydrogen atom, or a dimethacrylate derivative that has a methyl group, and a compound in which one represents a hydrogen atom and the other represents a methyl group.
  • diacrylate derivatives are the fastest, dimethacrylate derivatives are slow, asymmetric compounds are in the middle, and a preferred embodiment can be used depending on the application.
  • a dimethacrylate derivative is particularly preferable.
  • Sp 201 and Sp 202 each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms, or —O— (CH 2 ) s —, but at least one of them is a single bond in a PSA display element.
  • a compound in which both represent a single bond or one in which one represents a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or —O— (CH 2 ) s — is preferable.
  • 1 to 4 alkyl groups are preferable, and s is preferably 1 to 4.
  • Z 201 represents —OCH 2 —, —CH 2 O—, —COO—, —OCO—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 — or a single bond
  • M 201 represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond in which any hydrogen atom may be substituted by a fluorine atom, but the 1,4-phenylene group or the single bond is preferable.
  • Z 201 is preferably a linking group other than a single bond.
  • Z 201 is preferably a single bond.
  • the ring structure between Sp 201 and Sp 202 is specifically preferably the structure described below.
  • the following formulas (XXa-1) to (XXa-5) are preferably represented, It is more preferable to represent the formula (XXa-3) from (XXa-1), and it is particularly preferable to represent the formula (XXa-1).
  • both ends shall be bonded to Sp 201 or Sp 202.
  • the polymerizable compounds containing these skeletons are optimal for PSA-type liquid crystal display elements because of the alignment regulating power after polymerization, and a good alignment state can be obtained, so that display unevenness is suppressed or does not occur at all.
  • the general formula (XX-1) to the general formula (XX-4) are particularly preferable, and the general formula (XX-2) is most preferable.
  • Sp 20 represents an alkylene group having 2 to 5 carbon atoms.
  • the polymerization proceeds even when no polymerization initiator is present, but may contain a polymerization initiator in order to accelerate the polymerization.
  • the polymerization initiator include benzoin ethers, benzophenones, acetophenones, benzyl ketals, acylphosphine oxides, and the like.
  • the liquid crystal composition in the present invention can further contain a compound represented by the general formula (Q).
  • RQ represents a straight-chain alkyl group or a branched-chain alkyl group having 1 to 22 carbon atoms, and one or more CH 2 groups in the alkyl group are —O—so that oxygen atoms are not directly adjacent to each other.
  • MQ represents a trans-1,4-cyclohexylene group, a 1,4
  • the compound represented by the general formula (Q) is preferably a compound represented by the following general formula (Qa) to general formula (Qd).
  • R Q1 is preferably a linear or branched alkyl group having 1 to 10 carbon atoms
  • R Q2 is preferably a linear or branched alkyl group having 1 to 20 carbon atoms
  • R Q3 is A straight-chain alkyl group having 1 to 8 carbon atoms, a branched-chain alkyl group, a straight-chain alkoxy group or a branched-chain alkoxy group is preferred
  • L Q is preferably a straight-chain alkylene group or branched-chain alkylene group having 1 to 8 carbon atoms.
  • compounds represented by general formula (Qa) to general formula (Qd) compounds represented by general formula (Qc) and general formula (Qd) are more preferable.
  • the compound represented by formula (Q) preferably contains one or two compounds, more preferably contains 1 to 5 compounds, and the content is 0.001. Is preferably 1 to 1% by mass, more preferably 0.001 to 0.1% by mass, and particularly preferably 0.001 to 0.05% by mass.
  • the liquid crystal composition containing the polymerizable compound of the present invention is provided with liquid crystal alignment ability by polymerizing the polymerizable compound contained therein by ultraviolet irradiation, and transmits light through the birefringence of the liquid crystal composition. It is used in a liquid crystal display element that controls As liquid crystal display elements, AM-LCD (active matrix liquid crystal display element), TN (nematic liquid crystal display element), STN-LCD (super twisted nematic liquid crystal display element), OCB-LCD and IPS-LCD (in-plane switching liquid crystal display element) However, it is particularly useful for AM-LCDs and can be used for transmissive or reflective liquid crystal display elements.
  • the two substrates of the liquid crystal cell used in the liquid crystal display element can be made of a transparent material having flexibility such as glass or plastic, and one of them can be an opaque material such as silicon.
  • a transparent substrate having a transparent electrode layer can be obtained, for example, by sputtering indium tin oxide (ITO) on a transparent substrate such as a glass plate.
  • the color filter can be prepared by, for example, a pigment dispersion method, a printing method, an electrodeposition method, or a dyeing method. A method for producing a color filter by a pigment dispersion method will be described as an example.
  • a curable coloring composition for a color filter is applied on the transparent substrate, subjected to patterning treatment, and cured by heating or light irradiation.
  • a pixel portion for a color filter can be created.
  • a pixel electrode provided with an active element such as a TFT, a thin film diode, or a metal insulator metal specific resistance element may be provided on the substrate.
  • substrate is made to oppose so that a transparent electrode layer may become inner side.
  • the thickness of the obtained light control layer is 1 to 100 ⁇ m. More preferably, the thickness is 1.5 to 10 ⁇ m.
  • a polarizing plate it is preferable to adjust the product of the refractive index anisotropy ⁇ n of the liquid crystal and the cell thickness d so that the contrast is maximized.
  • the polarizing axis of each polarizing plate can be adjusted so that the viewing angle and contrast are good.
  • a retardation film for widening the viewing angle can also be used.
  • the spacer include columnar spacers made of glass particles, plastic particles, alumina particles, a photoresist material, and the like.
  • a sealant such as an epoxy thermosetting composition is screen-printed on the substrates with a liquid crystal inlet provided, the substrates are bonded together, and heated to thermally cure the sealant.
  • a normal vacuum injection method or an ODF method can be used as a normal vacuum injection method or an ODF method. Although it has a problem that leaves traces, in the present invention, it can be suitably used for a display element manufactured by using the ODF method.
  • a sealant such as epoxy photothermal curing is drawn on a backplane or frontplane substrate using a dispenser in a closed-loop bank shape, and then removed.
  • a liquid crystal display element can be manufactured by bonding a front plane and a back plane after dropping a predetermined amount of the liquid crystal composition under air.
  • the liquid crystal composition of the present invention can be preferably used because the liquid crystal composition can be stably dropped in the ODF process.
  • an appropriate polymerization rate is desirable in order to obtain good alignment performance of liquid crystals. Therefore, active energy rays such as ultraviolet rays or electron beams are irradiated singly or in combination or sequentially.
  • the method of polymerizing by is preferred.
  • a polarized light source or a non-polarized light source may be used.
  • the polymerization is performed in a state where the polymerizable compound-containing liquid crystal composition is sandwiched between two substrates, at least the substrate on the irradiation surface side must be given appropriate transparency to the active energy rays. I must.
  • the orientation state of the unpolymerized part is changed by changing conditions such as an electric field, a magnetic field, or temperature, and further irradiation with active energy rays is performed. Then, it is possible to use a means for polymerization.
  • the alternating electric field to be applied is preferably an alternating current having a frequency of 10 Hz to 10 kHz, more preferably a frequency of 60 Hz to 10 kHz, and the voltage is selected depending on a desired pretilt angle of the liquid crystal display element. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In a horizontal electric field type MVA mode liquid crystal display element, the pretilt angle is preferably controlled from 80 degrees to 89.9 degrees from the viewpoint of alignment stability and contrast.
  • the temperature during irradiation is preferably within a temperature range in which the liquid crystal state of the liquid crystal composition of the present invention is maintained. Polymerization is preferably performed at a temperature close to room temperature, that is, typically at a temperature of 15 to 35 ° C.
  • a lamp for generating ultraviolet rays a metal halide lamp, a high-pressure mercury lamp, an ultra-high pressure mercury lamp, or the like can be used.
  • a wavelength of the ultraviolet-rays to irradiate it is preferable to irradiate the ultraviolet-ray of the wavelength range which is not the absorption wavelength range of a liquid crystal composition, and it is preferable to cut and use an ultraviolet-ray as needed.
  • Intensity of ultraviolet irradiation is preferably from 0.1mW / cm 2 ⁇ 100W / cm 2, 2mW / cm 2 ⁇ 50W / cm 2 is more preferable.
  • the amount of energy of ultraviolet rays to be irradiated can be adjusted as appropriate, but is preferably 10 mJ / cm 2 to 500 J / cm 2, and more preferably 100 mJ / cm 2 to 200 J / cm 2 .
  • the intensity may be changed.
  • the time for irradiating with ultraviolet rays is appropriately selected depending on the intensity of the irradiated ultraviolet rays, but is preferably 10 seconds to 3,600 seconds, and more preferably 10 seconds to 600 seconds.
  • the liquid crystal display device using the liquid crystal composition of the present invention is useful for achieving both high-speed response and suppression of display failure, and is particularly useful for a liquid crystal display device for active matrix driving, including VA mode, PSVA mode, It can be applied to a liquid crystal display element for PSA mode, IPS (in-plane switching) mode, FSS (fringe field switching) mode or ECB mode.
  • FIG. 1 is a cross-sectional view showing a liquid crystal display element including two substrates facing each other, a sealing material provided between the substrates, and liquid crystal sealed in a sealing region surrounded by the sealing material. It is. Specifically, the TFT layer 102 and the pixel electrode 103 are provided on the first substrate 100, the backplane on which the passivation film 104 and the first alignment film 105 are provided, and the black matrix on the second substrate 200.
  • the aspect of a liquid crystal display element is shown.
  • the first substrate or the second substrate is not particularly limited as long as it is substantially transparent, and glass, ceramics, plastics, or the like can be used.
  • Plastic substrates include cellulose derivatives such as cellulose, triacetyl cellulose, diacetyl cellulose, polycycloolefin derivatives, polyesters such as polyethylene terephthalate and polyethylene naphthalate, polypropylene, polyethylene, etc.
  • Inorganic-organic composite materials such as glass fiber-acrylic resin can be used.
  • a plastic substrate it is preferable to provide a barrier film.
  • the function of the barrier film is to reduce the moisture permeability of the plastic substrate and to improve the reliability of the electrical characteristics of the liquid crystal display element.
  • the barrier film is not particularly limited as long as it has high transparency and low water vapor permeability. Generally, vapor deposition, sputtering, chemical vapor deposition method (CVD method) using an inorganic material such as silicon oxide is used. ) Is used.
  • the same material or different materials may be used as the first substrate or the second substrate, and there is no particular limitation.
  • Use of a glass substrate is preferable because a liquid crystal display element having excellent heat resistance and dimensional stability can be produced.
  • a plastic substrate is preferable because it is suitable for a manufacturing method using a roll-to-roll method and is suitable for weight reduction or flexibility. For the purpose of imparting flatness and heat resistance, good results can be obtained by combining a plastic substrate and a glass substrate.
  • a substrate is used as the material of the first substrate 100 or the second substrate 200.
  • the TFT layer 102 and the pixel electrode 103 are provided on the first substrate 100. These are manufactured by a normal array process.
  • a backplane is obtained by providing a passivation film 104 and a first alignment film 105 thereon.
  • a passivation film 104 (also referred to as an inorganic protective film) is a film for protecting the TFT layer.
  • a nitride film (SiNx), an oxide film (SiOx), or the like is formed by a chemical vapor deposition (CVD) technique or the like.
  • the first alignment film 105 is a film having a function of aligning liquid crystals, and a polymer material such as polyimide is usually used in many cases.
  • an alignment agent solution composed of a polymer material and a solvent is used. Since the alignment film may hinder the adhesive force with the sealing material, a pattern is applied in the sealing region.
  • a printing method such as a flexographic printing method or a droplet discharge method such as an ink jet is used.
  • the applied alignment agent solution is crosslinked and cured by baking after the solvent is evaporated by temporary drying. Thereafter, an alignment process is performed to provide an alignment function.
  • the alignment treatment is usually performed by a rubbing method.
  • the polymer film formed as described above is rubbed in one direction using a rubbing cloth made of fibers such as rayon, thereby producing liquid crystal alignment ability.
  • a photo-alignment method is a method of generating alignment ability by irradiating polarized light on an alignment film containing an organic material having photosensitivity, and does not cause the generation of scratches or dust on the substrate due to the rubbing method.
  • the organic material in the photo-alignment method include a material containing a dichroic dye.
  • Dichroic dyes include molecular orientation induction or isomerization reaction (eg, azobenzene group), dimerization reaction (eg, cinnamoyl group), photocrosslinking reaction (eg, benzophenone group) due to Weigert effect resulting from photodichroism.
  • a photo-alignment group that causes a photoreaction that causes liquid crystal alignment ability
  • a photolysis reaction eg, polyimide group
  • the applied alignment agent solution is irradiated with light having an arbitrary deflection (polarized light), whereby an alignment film having alignment ability in an arbitrary direction can be obtained.
  • One front plane is provided with a black matrix 202, a color filter 203, a planarization film 201, a transparent electrode 204, and a second alignment film 205 on a second substrate 200.
  • the black matrix 202 is produced by, for example, a pigment dispersion method. Specifically, a color resin solution in which a black colorant is uniformly dispersed for forming a black matrix is applied on the second substrate 200 provided with the barrier film 201 to form a colored layer. Subsequently, the colored layer is baked and cured. A photoresist is applied on this and prebaked. After exposing the photoresist through a mask pattern, development is performed to pattern the colored layer.
  • the photoresist layer is peeled off and the colored layer is baked to complete the black matrix 202.
  • a photoresist type pigment dispersion may be used. In this case, a photoresist-type pigment dispersion is applied, pre-baked, exposed through a mask pattern, and then developed to pattern the colored layer. Thereafter, the photoresist layer is peeled off and the colored layer is baked to complete the black matrix 202.
  • the color filter 203 is prepared by a pigment dispersion method, an electrodeposition method, a printing method, a dyeing method, or the like.
  • a pigment dispersion method as an example, a color resin liquid in which a pigment (for example, red) is uniformly dispersed is applied onto the second substrate 200, and after baking and curing, a photoresist is applied thereon and prebaked. After the photoresist is exposed through a mask pattern, development is performed and patterning is performed. Thereafter, the photoresist layer is peeled off and baked again to complete the (red) color filter 203. There is no particular limitation on the color order to be created. Similarly, a green color filter 203 and a blue color filter 203 are formed.
  • the transparent electrode 204 is provided on the color filter 203 (if necessary, an overcoat layer (201) is provided on the color filter 203 for surface flattening).
  • the transparent electrode 204 preferably has a high transmittance, and preferably has a low electrical resistance.
  • the transparent electrode 204 is formed by sputtering an oxide film such as ITO.
  • a passivation film may be provided on the transparent electrode 204 for the purpose of protecting the transparent electrode 204.
  • the second alignment film 205 is the same as the first alignment film 105 described above.
  • the shape of the columnar spacer is not particularly limited, and the horizontal cross section can be various shapes such as a circle and a polygon such as a quadrangle. A polygonal shape is particularly preferable.
  • the protrusion shape is preferably a truncated cone or a truncated pyramid.
  • the material of the columnar spacer is not particularly limited as long as it is a sealing material, an organic solvent used for the sealing material, or a material that does not dissolve in liquid crystal.
  • FIG. 2 is a diagram of an exposure process using a columnar spacer forming pattern formed on a black matrix as a photomask pattern.
  • a resin solution for forming columnar spacers (not containing a colorant) is applied. Subsequently, the resin layer 402 is baked and cured. A photoresist is applied on this and prebaked. After exposing the photoresist through the mask pattern 401, development is performed to pattern the resin layer. Thereafter, the photoresist layer is peeled off, and the resin layer is baked to complete columnar spacers (302, 0304 in FIG. 1).
  • the formation position of the columnar spacer can be determined at a desired position by a mask pattern. Therefore, both the inside of the sealing region of the liquid crystal display element and the outside of the sealing region (sealing material application portion) can be created simultaneously.
  • the columnar spacer is preferably formed so as to be positioned on the black matrix so that the quality of the sealing region does not deteriorate.
  • a columnar spacer manufactured by a photolithography method in this way may be called a column spacer or a photo spacer.
  • a negative water-soluble resin such as PVA-stilbazo photosensitive resin, a mixture of a polyfunctional acrylic monomer, an acrylic acid copolymer, a triazole initiator, or the like is used.
  • a method using a color resin in which a colorant is dispersed in a polyimide resin there is a method using a color resin in which a colorant is dispersed in a polyimide resin.
  • a spacer can be obtained from a known material according to the compatibility with the liquid crystal composition and the sealing material to be used.
  • a seal material (301 in FIG. 1) is applied to the surface of the back plane that contacts the seal material.
  • the material of the sealing material is not particularly limited, and a curable resin composition in which a polymerization initiator is added to an epoxy or acrylic photocurable, thermosetting, or photothermal combination curable resin is used.
  • a curable resin composition in which a polymerization initiator is added to an epoxy or acrylic photocurable, thermosetting, or photothermal combination curable resin is used.
  • fillers made of inorganic or organic substances may be added.
  • the shape of these fillers is not particularly limited, and includes a spherical shape, a fiber shape, and an amorphous shape.
  • a spherical or fibrous gap material having a monodispersed diameter is mixed, or in order to further strengthen the adhesive force with the substrate, a fibrous substance that easily entangles with the protrusion on the substrate is used. You may mix.
  • the diameter of the fibrous material used at this time is preferably about 1/5 to 1/10 or less of the cell gap, and the length of the fibrous material is preferably shorter than the seal coating width.
  • the material of the fibrous substance is not particularly limited as long as a predetermined shape can be obtained, and synthetic fibers such as cellulose, polyamide and polyester, and inorganic materials such as glass and carbon can be appropriately selected.
  • synthetic fibers such as cellulose, polyamide and polyester, and inorganic materials such as glass and carbon can be appropriately selected.
  • As a method for applying the sealing material there are a printing method and a dispensing method, but a dispensing method with a small amount of the sealing material used is desirable.
  • the application position of the sealing material is usually on the black matrix so as not to adversely affect the sealing area.
  • the sealing material application shape is a closed loop shape.
  • the liquid crystal composition is dropped onto the closed loop shape (sealing region) of the front plane coated with the sealing material.
  • a dispenser is used. Since the amount of liquid crystal to be dropped coincides with the volume of the liquid crystal cell, the amount is basically the same as the volume obtained by multiplying the height of the column spacer and the seal application area. However, in order to optimize liquid crystal leakage and display characteristics in the cell bonding process, the amount of liquid crystal to be dropped may be adjusted as appropriate, or the liquid crystal dropping position may be dispersed.
  • the back plane is bonded to the front plane on which the sealing material is applied and the liquid crystal composition is dropped.
  • the front plane and the back plane are adsorbed on a stage having a mechanism for adsorbing a substrate such as an electrostatic chuck, and the second alignment film on the front plane and the first alignment film on the back plane face each other.
  • it is arranged at a position (distance) where the sealing material does not contact the other substrate.
  • the system is depressurized. After decompression is completed, the positions of both substrates are adjusted while confirming the bonding position between the front plane and the back plane (alignment operation).
  • the substrate is brought close to a position where the sealing material on the front plane and the back plane are in contact with each other.
  • the system is filled with an inert gas, and the pressure is gradually returned to normal pressure while releasing the reduced pressure.
  • the front plane and the back plane are bonded together by atmospheric pressure, and a cell gap is formed at the height of the columnar spacer.
  • the sealing material is irradiated with ultraviolet rays to cure the sealing material, thereby forming a liquid crystal cell.
  • a heating step is added in some cases to promote curing of the sealing material. A heating process is often added to enhance the adhesive strength of the sealing material and improve the reliability of electrical characteristics.
  • the measured characteristics are as follows.
  • Tni Nematic phase-isotropic liquid phase transition temperature (° C)
  • ⁇ n Refractive index anisotropy at 295K (also known as birefringence)
  • ⁇ Dielectric anisotropy at 295K
  • Initial voltage holding ratio (initial VHR): voltage holding ratio (mass%) at 50 ° C. under conditions of frequency 60 Hz and applied voltage 4 V Voltage holding ratio after heating (VHR after heating): voltage holding ratio (mass%) measured under the same conditions as the initial VHR after holding in an atmosphere of 150 ° C. for 1 hour
  • Burn-in The burn-in evaluation of the liquid crystal display element is based on the following four-step evaluation of the afterimage level of the fixed pattern when the predetermined fixed pattern is displayed in the display area for 1440 hours and then the entire screen is displayed uniformly. went. ⁇ No afterimage ⁇ : Level of afterimage is slightly acceptable but acceptable ⁇ Without afterimage is unacceptable level ⁇ Afterimage is quite poor
  • Volatility / contamination of production equipment Evaluation of the volatility of the liquid crystal material was performed by observing the operating state of the vacuum stirring and defoaming mixer with a stroboscope and visually observing foaming of the liquid crystal material. Specifically, put 0.8kg of the liquid crystal composition in a dedicated container vacuum agitation defoaming mixer having a volume 2.0L, under degassing of 4 kPa, the revolution speed 15S -1, vacuum stirring at rotation speed 7.5S -1 The defoaming mixer was operated, and the following four-step evaluation was performed according to the time until foaming started. ⁇ 3 minutes or more to foam. The possibility of equipment contamination due to volatilization is low. ⁇ It takes 1 minute or more and less than 3 minutes to foam. There is concern about minor equipment contamination due to volatilization. ⁇ 30 seconds or more and less than 1 minute until foaming. Equipment contamination due to volatilization occurs. X Up to 30 seconds until foaming. There is concern about serious equipment contamination due to volatilization.
  • the process suitability is that the liquid crystal is dropped 40 pL at a time by using a constant volume metering pump 100000 times in the ODF process, and the following “0 to 200 times, 201 to 400 times, 401 to 600 times, ..., 99801-100,000 times ”, the change in the amount of liquid crystal dropped 200 times was evaluated in the following four stages. ⁇ Extremely small change (Stable liquid crystal display device can be manufactured) ⁇ Allowable level with slight change ⁇ Level with change and unacceptable level (Yield deteriorated due to spots) ⁇ There is a change and it is quite inferior (liquid crystal leakage and vacuum bubbles are generated)
  • Solubility at low temperature In order to evaluate the solubility at a low temperature, after preparing the liquid crystal composition, 0.5 g of the liquid crystal composition was weighed in a 1 mL sample bottle, and the next was “ ⁇ 20 ° C. ( ⁇ 20 ° C.)” in a temperature-controlled test tank. 1 hour hold) ⁇ temperature rise (0.2 ° C./min) ⁇ 0° C. (1 hour hold) ⁇ temperature rise (0.2 ° C./min) ⁇ 20° C. (1 hour hold) ⁇ temperature drop ( ⁇ 0. 2 ° C / min) ⁇ 0 ° C (hold for 1 hour) ⁇ temperature drop ( ⁇ 0.2 ° C / min) ⁇ ⁇ 20 ° C. The following four-level evaluation was performed. A precipitate was not observed for 600 hours or more. ⁇ No precipitate was observed for 300 hours or more. Precipitates were observed within ⁇ 150 hours. X Precipitates were observed within 75 hours.
  • Example 1 (Example 1 and Comparative Examples 1 to 3) A liquid crystal composition having the composition shown in Table 1 was prepared using the following compounds.
  • Table 2 shows the physical property values of the obtained liquid crystal composition.
  • Example 2 A liquid crystal composition having the composition shown in Table 3 was prepared using the following compounds.
  • Table 4 shows the physical property values of the obtained liquid crystal composition.
  • Example 5 A liquid crystal composition having the composition shown in Table 5 was prepared using the following compounds.
  • Table 6 shows the physical property values of the obtained liquid crystal composition.
  • Example 8 A liquid crystal composition having the composition shown in Table 7 was prepared using the following compounds.
  • Table 8 shows the physical property values of the obtained liquid crystal composition.
  • Example 11 A liquid crystal composition having the composition shown in Table 9 was prepared using the following compounds.
  • Table 10 shows the physical properties of the liquid crystal composition obtained.
  • Example 1 As shown in Table 1, the liquid crystal composition of Comparative Example 1 is different from Example 1 in that it contains compounds represented by general formulas (ii-1) and (ii-2). Instead of containing them, Example 1 contains the formulas (3.1), (3.3), and (3.4) belonging to the general formula (I-2) having a similar structure.
  • the liquid crystal composition of Comparative Example 1 had the same ⁇ n as the liquid crystal composition of Example 1 and had a slightly higher Tni, but the viscosity ( ⁇ , ⁇ 1) was greatly increased.
  • Example 1 contains the compound represented by formula (37.2) contained in general formula (i), whereas it does not contain the liquid crystal composition of Comparative Example 2, but instead has a similar structure. (45.3) and a compound represented by (45.4).
  • the liquid crystal composition of Comparative Example 2 had the same ⁇ n as the liquid crystal composition of Example 1 and had a slightly large ⁇ , but Tni was low and the viscosity ( ⁇ , ⁇ 1) was greatly increased.
  • Example 1 contains the compound represented by formula (37.2) contained in general formula (i), whereas it does not contain the liquid crystal composition of Comparative Example 3, and instead has a similar structure. The compound represented by (44.4) is contained.
  • the liquid crystal composition of Comparative Example 3 had the same ⁇ n as the liquid crystal composition of Example 1 and had a slightly large ⁇ , but the Tni was low and the viscosity ( ⁇ , ⁇ 1) was greatly increased. .
  • all of the liquid crystal compositions of Examples 2 to 13 had a small decrease in VHR after heating, and showed seizure, volatility, process suitability, and low temperature. Good results were obtained in solubility evaluation.

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Abstract

L'objectif de la présente invention est de pourvoir à une composition de cristaux liquides ayant une valeur Δε positive, la composition présentant une phase cristal liquide affichant une vaste plage de température, une faible viscosité, une solubilité favorable à basse température, une grande résistance relative et un taux de retenue de tension élevé, ainsi qu'une bonne stabilité vis-à-vis de la chaleur et de la lumière. En outre, afin d'atteindre cet objectif, l'invention présente également une composition de cristaux liquides contenant au moins un composé exprimé par la formule (i) et au moins un composé sélectionné parmi les composés exprimés par la formule (ii-1) et ceux exprimés par la formule (ii-2).
PCT/JP2013/058532 2013-03-25 2013-03-25 Composition de cristaux liquides et élément d'affichage à cristaux liquides l'utilisant Ceased WO2014155479A1 (fr)

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