WO2014065231A1 - ネマチック液晶組成物及びこれを用いた液晶表示素子 - Google Patents
ネマチック液晶組成物及びこれを用いた液晶表示素子 Download PDFInfo
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- WO2014065231A1 WO2014065231A1 PCT/JP2013/078439 JP2013078439W WO2014065231A1 WO 2014065231 A1 WO2014065231 A1 WO 2014065231A1 JP 2013078439 W JP2013078439 W JP 2013078439W WO 2014065231 A1 WO2014065231 A1 WO 2014065231A1
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- C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
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- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
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- 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
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- 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
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- 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
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- 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
- G02F1/13712—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 negative dielectric anisotropy
Definitions
- the present invention relates to a nematic liquid crystal composition having a negative 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 clocks, calculators, various household electrical devices, measuring devices, automotive panels, word processors, electronic notebooks, printers, computers, televisions, and the like.
- Typical liquid crystal display methods include TN (twisted nematic), STN (super twisted nematic), DS (dynamic light scattering), GH (guest / host), and IPS (in-plane switching).
- Type OCB (optical compensation birefringence) type, ECB (voltage controlled birefringence) type, VA (vertical alignment) type, CSH (color super homeotropic) type, FLC (ferroelectric liquid crystal), etc.
- Examples of the driving method include static driving, multiplex driving, simple matrix method, active matrix (AM) method driven by TFT (thin film transistor), TFD (thin film diode), and the like.
- the IPS type, ECB type, VA type, CSH type, and the like have a feature that a liquid crystal material having a negative value of ⁇ is used.
- the VA type display method by AM driving is used for a display element that requires a high speed and a wide viewing angle, such as a television.
- a nematic liquid crystal composition used for a display method such as a VA type is required to have a low voltage drive, a high-speed response, and a wide operating temperature range. That is, ⁇ is negative, the absolute value is large, the viscosity is low, and a high nematic phase-isotropic liquid phase transition temperature (T ni ) is required. Further, from the setting of ⁇ n ⁇ d, which is the product of refractive index anisotropy ( ⁇ n) and cell gap (d), it is necessary to adjust ⁇ n of the liquid crystal material to an appropriate range according to the cell gap. In addition, when applying a liquid crystal display element to a television or the like, since high-speed response is important, a liquid crystal material having a low viscosity ( ⁇ ) is required.
- a liquid crystal composition using the following liquid crystal compounds (A) and (B) having a 2,3-difluorophenylene skeleton (see Patent Document 1) as a liquid crystal material having a negative ⁇ is disclosed.
- liquid crystal compounds (C) and (D) are used as compounds having ⁇ of approximately 0.
- this liquid crystal composition is used in a liquid crystal composition that requires a high-speed response such as a liquid crystal television. A sufficiently low viscosity has not been achieved.
- a liquid crystal composition using a compound represented by the formula (G) has already been disclosed (see Patent Document 4), but this liquid crystal composition also contains an alkenyl compound as in the above liquid crystal compound (F). Since it is a liquid crystal composition containing a compound, there is a problem that display defects such as image sticking and display unevenness are likely to occur.
- Patent Document 8 discloses that the response speed of a homeotropic liquid crystal cell is improved by using a liquid crystal material having a large index represented by (Equation 1), but this is not sufficient. .
- JP-A-8-104869 European Patent Application No. 0474402 JP 2006-37054 A JP 2001-354967 A JP 2008-144135 A WO2007 / 077872 JP 2003-327965 A JP 2006-301643 A
- the problem to be solved by the present invention is that the viscosity ( ⁇ ) is sufficiently small without reducing the refractive index anisotropy ( ⁇ n) and the nematic phase-isotropic liquid phase transition temperature (T ni ), and the rotational viscosity
- a liquid crystal composition having a negative dielectric anisotropy ( ⁇ ) having a sufficiently small ( ⁇ 1), a large elastic constant (K 33 ), and a large absolute value is provided. It is an object of the present invention to provide a liquid crystal display element which is excellent in display quality and has a high response speed, with no defects or suppressed.
- the present inventor has studied various biphenyl derivatives and fluorobenzene derivatives, and found that the above problem can be solved by combining specific compounds, and has completed the present invention.
- the liquid crystal composition of the present invention has the general formula (I) as the first component.
- q represents 0 or 1
- R 55 represents an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms.
- a liquid crystal composition containing a compound having a content of 3 to 25% by mass and having a negative dielectric anisotropy ( ⁇ ) and an absolute value larger than 3 as a second component,
- ⁇ dielectric anisotropy
- the liquid crystal composition of the present invention has a sufficiently low viscosity ( ⁇ ) and a rotational viscosity ( ⁇ 1) without lowering the refractive index anisotropy ( ⁇ n) and the nematic phase-isotropic liquid phase transition temperature (T ni ). ) Is sufficiently small, the elastic constant (K 33 ) is large, and the absolute value has a large negative dielectric anisotropy ( ⁇ ). Therefore, a VA-type liquid crystal display element using this has no display defect or Suppressed, excellent display quality and fast response speed.
- the liquid crystal composition of the present invention contains 3 to 25% by mass of the compound represented by the general formula (I) as the first component, more preferably 5 to 20% by mass, and 5 to 15% by mass. It is particularly preferred that More specifically, the content is preferably 10 to 25% by mass for obtaining high ⁇ n, but the content is preferably 3 to 15% by mass when emphasis is placed on suppression of precipitation at low temperatures.
- R 55 in the general formula (I) represents an alkyl group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, and is an alkyl group having 2 to 5 carbon atoms or 2 to 5 carbon atoms.
- the alkenyl group is more preferable.
- the compound of the general formula (I) includes the formula (I-A1), the formula (IA2), the formula (IA3), the formula (IA4), the formula (IA5), the formula (I -B1), formula (I-B2), formula (I-B3), formula (I-B4), (I-B5) or formula (I-B6)
- the formula (I-A1), the formula (I-A5), the formula (I-B1) or the formula (I-B6) is preferable, and the elastic constant is regarded as important.
- the formula (I-A4), the formula (I-B4) or the formula (I-B5) is particularly preferable.
- the liquid crystal composition of the present invention preferably contains two or more compounds of the general formula (I), in which case the formula (I-A4), the formula (I-B4) or the formula (I-B5) It is more preferable to contain two or more at the same time.
- ⁇ is negative and contains one or more compounds having an absolute value greater than 3, but the content is preferably 10 to 90% by mass, and 20 to 80% by mass. Further preferred is 30 to 70% by weight.
- the second component is represented by the general formula (II)
- R 1 and R 2 are each independently an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or 2 carbon atoms. represents 10 alkenyloxy group, R 1 and R present in the 2 one -CH 2 - or nonadjacent two or more -CH 2 - are each independently -O- and / or -S And one or more hydrogen atoms present in R 1 and R 2 may be independently substituted with a fluorine atom or a chlorine atom.
- octylene group piperidine-1,4-diyl group, naphthalene-2,6 -Represents a diyl group, a decahydronaphthalene-2,6-diyl group or a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, p represents 0, 1 or 2.
- Z represents a- OCH 2 —, —CH 2 O—, —CF 2 O—, —OCF 2 —, —CH 2 CH 2 —, —CF 2 CF 2 — or a single bond).
- R 1 and R 2 in the formula are each independently a linear alkyl group having 1 to 5 carbon atoms, an alkoxyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, or a carbon atom More preferably, it is an alkenyloxy group having 2 to 5 carbon atoms, R 1 is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and R 2 is an alkoxyl group having 1 to 5 carbon atoms. It is particularly preferred that
- Ring A and Ring B in the formula are each independently a trans-1,4-cyclohexylene group, 1,4-phenylene group, 2-fluoro-1,4-phenylene group, 3-fluoro-1,4 -Phenylene group, 3,5-difluoro-1,4-phenylene group or 2,3-difluoro-1,4-phenylene group is more preferable, and trans-1,4-cyclohexylene group or 1,4 A phenylene group is particularly preferred.
- p in the formula is independently 0 or 1.
- Z in the formula -CH 2 O -, - yet more preferably CF 2 O-or a single bond, particularly preferably -CH 2 O-or a single bond.
- the liquid crystal composition of the present invention contains one or more second components, but preferably contains 2 to 10 types of second components.
- the compounds represented by general formula (II) are represented by general formula (II-A1) to general formula (II-A5) and general formula (II-B1) to general formula (II-B5).
- R 3 and R 4 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms, and one or two present in R 3 and R 4 )
- the hydrogen atom is a compound selected from the group consisting of general formulas (II-A1) to (II-A5).
- compounds of the general formula (II-A1) or the general formula (II-A3) are particularly preferable.
- the liquid crystal composition of the present invention has, as the third component, a general formula (III-A) to a general formula (III-J)
- R 5 is an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms
- R 6 is an alkyl group having 1 to 5 carbon atoms, and an alkoxyl having 1 to 5 carbon atoms.
- a group, an alkenyl group having 2 to 5 carbon atoms, or an alkenyloxy group having 2 to 5 carbon atoms is preferably contained.
- the compound represented by the general formula (III-F) does not include the same compound as the compound represented by the general formula (I). More preferably, the third component is a compound selected from general formulas (III-A), (III-D), (III-F), (III-G) and (III-H).
- R 5 is an alkenyl group having 2 to 5 carbon atoms
- R 6 is an alkyl group having 1 to 5 carbon atoms, or an alkyl group having 2 to 5 carbon atoms.
- An alkenyl group is preferred.
- R 21 and R 22 are each independently an alkyl group having 1 to 8 carbon atoms, an alkoxyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, or an alkyl group having 2 to 8 carbon atoms.
- an alkenyloxyl group is represented, an alkyl group having 1 to 5 carbon atoms or an alkenyl group having 2 to 5 carbon atoms is preferable.
- the liquid crystal composition of the present invention preferably contains the compounds of general formula (I), general formula (II-A1) and general formula (III-A) at the same time.
- A3) and a compound of general formula (III-A) are preferably contained at the same time, preferably a compound of general formula (I), general formula (II-B1) and general formula (III-A) are contained simultaneously.
- the compound of the formula (I), the general formula (II-B2) and the general formula (III-A) is simultaneously contained, and the compound of the formula (I), the general formula (II-B3) and the general formula (III-A)
- the compound of formula (I), general formula (II-B4), and general formula (III-A) are preferably contained simultaneously.
- the liquid crystal composition of the present invention further preferably contains compounds of general formula (I), general formula (II-A1), general formula (II-A3) and general formula (III-A) at the same time. More preferably, the compounds of the general formula (II), the general formula (II-B1), the general formula (II-B2) and the general formula (III-A) are simultaneously contained.
- a compound of general formula (II-B3) and a compound of general formula (III-A) is more preferable, and general formula (I), general formula (II-B1), general formula (II-B4) and More preferably, the compound of the general formula (III-A) is simultaneously contained, and the compounds of the general formula (I), the general formula (II-B2), the general formula (II-B3) and the general formula (III-A) It is more preferable to contain them simultaneously, and the general formula (I) and the general formula ( I-B2), it is further preferable that the general formula (II-B4) and a compound of general formula (III-A) is contained at the same time.
- the liquid crystal composition of the present invention preferably contains the compounds of the formulas (I-A4), (I-B5) and the general formula (II) at the same time.
- the compounds of the formulas (I-A4), (I -B5), a compound of the general formula (II) and a compound of the general formula (III-A) are more preferably contained at the same time, and the compounds of the formula (I-A4), the formula (I-B5), the general formula (II), the general formula It is particularly preferred to contain (III-A) and the compound of general formula (V) simultaneously.
- the liquid crystal composition of the present invention has a dielectric anisotropy ( ⁇ ) at ⁇ 25 ° C. of ⁇ 2.0 to ⁇ 8.0, preferably ⁇ 2.0 to ⁇ 6.0, -5.0 is more preferable, and -2.5 to -4.0 is particularly preferable.
- the liquid crystal composition of the present invention has a refractive index anisotropy ( ⁇ n) at 20 ° C. of 0.08 to 0.14, more preferably 0.09 to 0.13, and 0.09 to 0.12. Particularly preferred. More specifically, it is preferably 0.10 to 0.13 when dealing with a thin cell gap, and preferably 0.08 to 0.10 when dealing with a thick cell gap.
- the liquid crystal composition of the present invention has a viscosity ( ⁇ ) at 20 ° C. of 10 to 30 mPa ⁇ s, more preferably 10 to 25 mPa ⁇ s, and particularly preferably 10 to 22 mPa ⁇ s.
- the liquid crystal composition of the present invention has a rotational viscosity ( ⁇ 1 ) at 20 ° C. of 60 to 130 mPa ⁇ s, more preferably 60 to 110 mPa ⁇ s, and particularly preferably 60 to 100 mPa ⁇ s. .
- the liquid crystal composition of the present invention has a nematic phase-isotropic liquid phase transition temperature (T ni ) of 60 ° C. to 120 ° C., more preferably 70 ° C. to 100 ° C., and particularly preferably 70 ° C. to 85 ° C.
- T ni nematic phase-isotropic liquid phase transition temperature
- the liquid crystal composition of the present invention may contain a normal nematic liquid crystal, smectic liquid crystal, cholesteric liquid crystal, antioxidant, ultraviolet absorber, polymerizable monomer and the like in addition to the above-mentioned compounds.
- liquid crystal composition of the present invention has the general formula (IV).
- R 7 and R 8 are each independently represented by formulas (R-1) to (R-15).
- X 1 to X 8 each independently represents a trifluoromethyl group, a trifluoromethoxy group, a fluorine atom or a hydrogen atom.
- the structure of the biphenyl skeleton in general formula (IV) is more preferably formula (IV-11) to formula (IV-14), and particularly preferably formula (IV-11).
- a polymerizable compound containing a skeleton represented by the formulas (IV-11) to (IV-14) has an optimum orientation regulating force after polymerization, and a good orientation state can be obtained.
- the polymerizable compound-containing liquid crystal composition of the present invention containing the general formula (IV) which is a polymerizable compound has a low viscosity ( ⁇ ), a low rotational viscosity ( ⁇ 1 ), and a large elastic constant (K 33 ). Therefore, a PSA mode or PSVA mode liquid crystal display element using this can realize a high-speed response.
- the liquid crystal display device using the liquid crystal composition of the present invention has a remarkable feature of high-speed response, and is particularly useful for a liquid crystal display device for active matrix driving, and includes VA mode, PSVA mode, PSA mode, IPS. Applicable for mode or ECB mode.
- the measured characteristics are as follows.
- T ni Nematic phase-isotropic liquid phase transition temperature (° C.) ⁇ n: refractive index anisotropy at 20 ° C. ⁇ : dielectric anisotropy at 25 ° C. ⁇ : viscosity at 20 ° C. (mPa ⁇ s) ⁇ 1 : rotational viscosity at 20 ° C. (mPa ⁇ s) K 33 : Elastic constant at 20 ° C.
- the liquid crystal compositions LC-1, LC-2, LC-3 and LC-4 of the present invention have a small viscosity ( ⁇ ), a small rotational viscosity ( ⁇ 1 ), a large elastic constant (K 33 ), and a ⁇ 1 / K 33 was 6.7, 6.1, 6.0, and 6.0, respectively, which was significantly smaller than that of the comparative example LC-A.
- LC-1, LC-2, LC-3 and LC-4 had sufficiently high speed response, and about 10% to 20% than LC-A. It was fast.
- VHR voltage holding ratio
- the cell thickness is 3.5 ⁇ m
- the alignment film is JALS2096
- the response speed measurement conditions are Von 5.5 V, Voff 1.0 V, measurement temperature 20 ° C.
- AUTRONIC-MELCHERS DMS301 is used. It was.
- VHR measurement conditions were a voltage of 5 V, a frequency of 60 Hz, and a temperature of 60 ° C., and VHR-1 manufactured by Toyo Technica Co., Ltd. was used.
- LC-B Comparative Example 2
- LC-5 Example 5
- LC-6 Example 6
- LC-7 Example 7
- liquid crystal compositions were prepared and their physical properties were measured. The composition of the liquid crystal composition and the results of its physical properties are shown in Table 2.
- the liquid crystal compositions LC-5, LC-6 and LC-7 of the present invention have a small viscosity ( ⁇ ), a small rotational viscosity ( ⁇ 1 ), a large elastic constant (K 33 ), and a ⁇ 1 / K 33 of The values were 7.3, 6.9, and 7.0, respectively, which were significantly smaller than those of the comparative example LC-B.
- LC-5, LC-6, and LC-7 had sufficiently high-speed response, and were 10% or more faster than LC-B.
- VHR voltage holding ratio
- the cell thickness is 3.5 ⁇ m
- the alignment film is JALS2096
- the response speed measurement conditions are Von 5.5 V, Voff 1.0 V, measurement temperature 20 ° C.
- AUTRONIC-MELCHERS DMS301 is used. It was.
- VHR measurement conditions were a voltage of 5 V, a frequency of 60 Hz, and a temperature of 60 ° C., and VHR-1 manufactured by Toyo Technica Co., Ltd. was used.
- the liquid crystal composition of the present invention has a sufficiently small viscosity ( ⁇ ) without lowering the refractive index anisotropy ( ⁇ n) and the nematic phase-isotropic liquid phase transition temperature (T ni ).
- VA-type liquid crystal display element using a negative viscosity anisotropy ( ⁇ ) having a sufficiently small rotational viscosity ( ⁇ 1 ), a large elastic constant (K 33 ), and a large absolute value was confirmed to have excellent display quality and quick response speed.
- the liquid crystal compositions LC-8, LC-9 and LC-10 of the present invention have a small viscosity ( ⁇ ), a small rotational viscosity ( ⁇ 1 ), a large elastic constant (K 33 ), and a ⁇ 1 / K 33 of The values were 6.1, 6.6, and 6.4, respectively, which were significantly smaller than those of LC-C as Comparative Example 3.
- LC-8, LC-9, and LC-10 were sufficiently high-speed responses, and were about 20% to 30% faster than LC-C. .
- the voltage holding ratio (VHR) was measured and confirmed to have a high VHR.
- the cell thickness is 3.5 ⁇ m
- the alignment film is JALS2096
- the response speed measurement conditions are Von 5.5 V, Voff 1.0 V, measurement temperature 20 ° C.
- AUTRONIC-MELCHERS DMS301 is used. It was.
- VHR measurement conditions were a voltage of 5 V, a frequency of 60 Hz, and a temperature of 60 ° C., and VHR-1 manufactured by Toyo Technica Co., Ltd. was used.
- the liquid crystal composition of the present invention has a sufficiently small viscosity ( ⁇ ) without lowering the refractive index anisotropy ( ⁇ n) and the nematic phase-isotropic liquid phase transition temperature (T ni ).
- VA-type liquid crystal display element using a negative viscosity anisotropy ( ⁇ ) having a sufficiently small rotational viscosity ( ⁇ 1 ), a large elastic constant (K 33 ), and a large absolute value was confirmed to have excellent display quality and quick response speed.
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Abstract
Description
また、式(A)及び式(G)にΔεがほぼゼロである式(III-F31)を組み合わせた液晶組成物(特許文献6参照)が開示されている。しかし、液晶表示素子の製造工程では液晶組成物を液晶セルに注入する際の極低圧で、蒸気圧が低い化合物は揮発してしまうため、その含有量を増やすことが出来ないと考えられていた。このため、該液晶組成物は式(III-F31)の含有量を限定してしまっており、大きなΔnを示すものの、粘度が著しく高いという問題があった。
具体的に一般式(I)の化合物は、式(I-A1)、式(I-A2)、式(I-A3)、式(I-A4)、式(I-A5)、式(I-B1)、式(I-B2)、式(I-B3)、式(I-B4)、(I-B5)又は式(I-B6)
本発明の液晶組成物は、2種以上の一般式(I)の化合物を含有することも好ましく、その場合、式(I-A4)、式(I-B4)又は式(I-B5)を同時に2種以上含有することが更に好ましい。
第三成分は、一般式(III-A)、(III-D)、(III-F)、(III-G)及び(III-H)から選ばれる化合物であることが更に好ましい。また、一般式(III-A)で表される化合物においては、R5は炭素原子数2から5のアルケニル基、R6は炭素原子数1から5のアルキル基又は炭素原子数2から5のアルケニル基であることが好ましい。
実施例において化合物の記載について以下の略号を用いる。
(側鎖)
-n -CnH2n+1 炭素数nの直鎖状のアルキル基
n- CnH2n+1- 炭素数nの直鎖状のアルキル基
-On -OCnH2n+1 炭素数nの直鎖状のアルコキシル基
nO- CnH2n+1O- 炭素数nの直鎖状のアルコキシル基
-V -CH=CH2
V- CH2=CH-
-V1 -CH=CH-CH3
1V- CH3-CH=CH-
-2V -CH2-CH2-CH=CH3
V2- CH3=CH-CH2-CH2-
-2V1 -CH2-CH2-CH=CH-CH3
1V2- CH3-CH=CH-CH2-CH2
(環構造)
Δn :20℃における屈折率異方性
Δε :25℃における誘電率異方性
η :20℃における粘度(mPa・s)
γ1 :20℃における回転粘性(mPa・s)
K33 :20℃における弾性定数K33(pN)
(比較例1、実施例1、実施例2、実施例3及び実施例4)
LC-A(比較例1)、LC-1(実施例1)、LC-2(実施例2)、LC-3(実施例3)及びLC-4(実施例4)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表1のとおりであった。
(比較例2、実施例5、実施例6及び実施例7)
LC-B(比較例2)、LC-5(実施例5)、LC-6(実施例6)及びLC-7(実施例7)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表2のとおりであった。
(比較例3、実施例8、実施例9及び実施例10)
LC-C(比較例3)、LC-8(実施例8)、LC-9(実施例9)及びLC-10(実施例10)の液晶組成物を調製し、その物性値を測定した。液晶組成物の構成とその物性値の結果は表3のとおりであった。
Claims (20)
- 25℃における誘電率異方性(Δε)が-2.0から-8.0の範囲であり、20℃における屈折率異方性(Δn)が0.08から0.14の範囲であり、20℃における粘度(η)が10から30mPa・sの範囲であり、20℃における回転粘性(γ1)が60から130mPa・sの範囲であり、ネマチック相-等方性液体相転移温度(Tni)が60℃から120℃の範囲である請求項1に記載の液晶組成物。
- 第二成分として、一般式(II)
(式中、R1及びR2は、それぞれ独立的に炭素原子数1から10のアルキル基、炭素原子数1から10のアルコキシル基、炭素原子数2から10のアルケニル基又は炭素原子数2から10のアルケニルオキシ基を表し、R1及びR2中に存在する1個の-CH2-又は隣接していない2個以上の-CH2-はそれぞれ独立的に-O-及び/又は-S-に置換されても良く、また、R1及びR2中に存在する1個又は2個以上の水素原子はそれぞれ独立的にフッ素原子又は塩素原子に置換されても良い。環A及び環Bは、それぞれ独立的にトランス-1,4-シクロへキシレン基、1,4-フェニレン基、2-フルオロ-1,4-フェニレン基、3-フルオロ-1,4-フェニレン基、3,5-ジフルオロ-1,4-フェニレン基、2,3-ジフルオロ-1,4-フェニレン基、1,4-シクロヘキセニレン基、1,4-ビシクロ[2.2.2]オクチレン基、ピペリジン-1,4-ジイル基、ナフタレン-2,6-ジイル基、デカヒドロナフタレン-2,6-ジイル基又は1,2,3,4-テトラヒドロナフタレン-2,6-ジイル基を表す。pは、0、1又は2を表す。Zは、-OCH2-、-CH2O-、-CF2O-、-OCF2-、-CH2CH2-、-CF2CF2-又は単結合を表す。)で表される化合物群から選ばれる化合物を1種又は2種以上含有する請求項1又は2に記載の液晶組成物。 - 第二成分の含有量が10から90質量%である請求項1から3のいずれか一項に記載の液晶組成物。
- 第二成分として、一般式(II-A1)から一般式(II-A5)で表される化合物群から選ばれる1種又は2種以上の化合物を含有する請求項5に記載の液晶組成物。
- 一般式(I)、一般式(II-A1)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II-A3)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II-B1)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II-B2)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II-B3)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 一般式(I)、一般式(II-B4)及び一般式(III-A)を同時に含有する請求項8に記載の液晶組成物。
- 重合性化合物を1種又は2種以上含有する請求項1から15のいずれか1項に記載の液晶組成物。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いた液晶表示素子。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いたアクティブマトリックス駆動用液晶表示素子。
- 請求項1から17のいずれか1項に記載の液晶組成物を用いたVAモード、PSAモード、PSVAモード、IPSモード又はECBモード用液晶表示素子。
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2013
- 2013-10-21 US US14/436,644 patent/US20160168462A1/en not_active Abandoned
- 2013-10-21 KR KR1020157010593A patent/KR101726603B1/ko not_active Expired - Fee Related
- 2013-10-21 CN CN201380055840.1A patent/CN104755588A/zh active Pending
- 2013-10-21 WO PCT/JP2013/078439 patent/WO2014065231A1/ja not_active Ceased
- 2013-10-21 JP JP2014516116A patent/JP5668895B2/ja active Active
- 2013-10-23 TW TW102138178A patent/TWI626301B/zh active
-
2014
- 2014-12-17 JP JP2014255079A patent/JP6299580B2/ja active Active
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| JP2006037053A (ja) * | 2004-07-30 | 2006-02-09 | Dainippon Ink & Chem Inc | ネマチック液晶組成物及びこれを用いた液晶表示素子 |
| JP2011202168A (ja) * | 2009-04-14 | 2011-10-13 | Dic Corp | 重合性化合物を含有する液晶組成物及びそれを使用した液晶表示素子 |
| JP2011012179A (ja) * | 2009-07-02 | 2011-01-20 | Chisso Corp | 液晶組成物および液晶表示素子 |
| WO2011148928A1 (ja) * | 2010-05-28 | 2011-12-01 | Jnc株式会社 | 液晶組成物および液晶表示素子 |
| WO2011152494A1 (ja) * | 2010-06-03 | 2011-12-08 | Jnc株式会社 | 液晶組成物および液晶表示素子 |
| JP2012077200A (ja) * | 2010-10-01 | 2012-04-19 | Dic Corp | 重合性化合物を含有する液晶組成物及びそれを使用した液晶表示素子 |
| WO2012144321A1 (ja) * | 2011-04-18 | 2012-10-26 | Jnc株式会社 | 液晶組成物および液晶表示素子 |
| WO2013125379A1 (ja) * | 2012-02-23 | 2013-08-29 | Jnc株式会社 | 液晶組成物および液晶表示素子 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015194632A1 (ja) * | 2014-06-19 | 2015-12-23 | Dic株式会社 | 重合性モノマー含有液晶組成物およびそれを使用した液晶表示素子 |
| CN106459764A (zh) * | 2014-06-19 | 2017-02-22 | Dic株式会社 | 含有聚合性单体的液晶组合物和使用其的液晶显示元件 |
| CN107001938A (zh) * | 2015-03-11 | 2017-08-01 | Dic株式会社 | 负介电各向异性液晶元件 |
| EP3103855A1 (en) * | 2015-06-11 | 2016-12-14 | Merck Patent GmbH | Liquid-crystalline medium |
| CN106244167A (zh) * | 2015-06-11 | 2016-12-21 | 默克专利股份有限公司 | 液晶介质 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5668895B2 (ja) | 2015-02-12 |
| KR101726603B1 (ko) | 2017-04-13 |
| TWI626301B (zh) | 2018-06-11 |
| CN104755588A (zh) | 2015-07-01 |
| KR20150067216A (ko) | 2015-06-17 |
| JP2015091983A (ja) | 2015-05-14 |
| TW201430109A (zh) | 2014-08-01 |
| JP6299580B2 (ja) | 2018-03-28 |
| JPWO2014065231A1 (ja) | 2016-09-08 |
| US20160168462A1 (en) | 2016-06-16 |
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