TWI768855B - Liquid crystal composition, liquid crystal display element and liquid crystal display - Google Patents
Liquid crystal composition, liquid crystal display element and liquid crystal display Download PDFInfo
- Publication number
- TWI768855B TWI768855B TW110115360A TW110115360A TWI768855B TW I768855 B TWI768855 B TW I768855B TW 110115360 A TW110115360 A TW 110115360A TW 110115360 A TW110115360 A TW 110115360A TW I768855 B TWI768855 B TW I768855B
- Authority
- TW
- Taiwan
- Prior art keywords
- liquid crystal
- formula
- crystal composition
- carbon atoms
- group
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 207
- 239000000203 mixture Substances 0.000 title claims abstract description 162
- 150000001875 compounds Chemical class 0.000 claims abstract description 91
- 125000004432 carbon atom Chemical group C* 0.000 claims description 54
- 125000000217 alkyl group Chemical group 0.000 claims description 27
- 125000003342 alkenyl group Chemical group 0.000 claims description 26
- -1 cyclopropylidene Chemical group 0.000 claims description 15
- 239000011159 matrix material Substances 0.000 claims description 13
- 125000004976 cyclobutylene group Chemical group 0.000 claims description 11
- 125000004979 cyclopentylene group Chemical group 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 10
- 238000006467 substitution reaction Methods 0.000 claims description 4
- 125000004980 cyclopropylene group Chemical group 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 23
- 230000003287 optical effect Effects 0.000 abstract description 9
- 230000000052 comparative effect Effects 0.000 description 67
- 238000012360 testing method Methods 0.000 description 50
- 238000002425 crystallisation Methods 0.000 description 45
- 230000008025 crystallization Effects 0.000 description 45
- 230000000875 corresponding effect Effects 0.000 description 37
- 238000009472 formulation Methods 0.000 description 22
- 239000000178 monomer Substances 0.000 description 20
- 230000032683 aging Effects 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 206010047571 Visual impairment Diseases 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000004224 protection Effects 0.000 description 3
- 230000006750 UV protection Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 125000005647 linker group Chemical group 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 125000004973 1-butenyl group Chemical group C(=CCC)* 0.000 description 1
- 125000006039 1-hexenyl group Chemical group 0.000 description 1
- 125000006023 1-pentenyl group Chemical group 0.000 description 1
- 125000006017 1-propenyl group Chemical group 0.000 description 1
- 125000004974 2-butenyl group Chemical group C(C=CC)* 0.000 description 1
- 125000006040 2-hexenyl group Chemical group 0.000 description 1
- 125000006024 2-pentenyl group Chemical group 0.000 description 1
- 125000004975 3-butenyl group Chemical group C(CC=C)* 0.000 description 1
- 125000006041 3-hexenyl group Chemical group 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002510 isobutoxy group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])O* 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000003253 isopropoxy group Chemical group [H]C([H])([H])C([H])(O*)C([H])([H])[H] 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 125000006606 n-butoxy group Chemical group 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003506 n-propoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004115 pentoxy group Chemical group [*]OC([H])([H])C([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical group C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- 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
- C09K19/42—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
-
- 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
Abstract
本發明公開一種液晶組合物,所述液晶組合物包含一種或多種式Ⅰ所示的化合物、一種或多種式Ⅱ所示的化合物,其中,按質量百分含量計,所述液晶組合物中,包含5.5~7.5%的式Ⅰ所示的化合物,以及12~16%的式Ⅱ所示的化合物。其具有極快的響應速度、很低的旋轉粘度、較大的光學各向異性、較寬的向列相溫度範圍,以及良好的抗紫外和抗外界環境破壞能力。本發明還公開了該液晶組合物的應用。 Ⅰ; Ⅱ。 The present invention discloses a liquid crystal composition, the liquid crystal composition comprises one or more compounds represented by formula I and one or more compounds represented by formula II, wherein, in terms of mass percentage, in the liquid crystal composition, It contains 5.5-7.5% of the compound represented by formula I, and 12-16% of the compound represented by formula II. It has extremely fast response speed, very low rotational viscosity, large optical anisotropy, wide temperature range of nematic phase, and good resistance to ultraviolet and external environment damage. The invention also discloses the application of the liquid crystal composition. I; II.
Description
本發明涉及液晶顯示技術領域。更具體地,涉及一種液晶組合物、液晶顯示元件及液晶顯示器。The present invention relates to the technical field of liquid crystal display. More specifically, it relates to a liquid crystal composition, a liquid crystal display element and a liquid crystal display.
隨著顯示技術的發展,液晶顯示器(Liquid Crystal Display,LCD)等平面顯示裝置因具有高畫質、省電、機身薄及應用範圍廣等優點,而被廣泛的應用於手機、電視、個人數位助理、數位相機、筆記型電腦、桌上型電腦等各種消費性電子產品,成為顯示裝置中的主流。With the development of display technology, flat display devices such as Liquid Crystal Display (LCD) are widely used in mobile phones, televisions, personal Various consumer electronic products such as digital assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices.
近年來,電子競技作為一項新興的體育項目,逐漸受到更多的關注。電子競技與傳統的體育競技專案不同,需要在電子資訊設備營造的虛擬環境中進行。虛擬環境的展現,需要借助顯示技術和顯示裝置。隨著電子競技專案的不斷發展,對於虛擬環境呈現的要求也不斷提高,要求顯示裝置能夠滿足畫面快速切換,具有色域範圍廣、高解析度、高對比等特點。其中,最為重要的是如何提高換面的切換速度。因此,高刷新率的顯示器被不斷的開發出來,例如144Hz、165Hz,乃至更高刷新率。這類高刷新頻率的顯示器對所用的液晶材料具有更快的響應速度,以匹配不斷升高的刷新頻率。In recent years, e-sports, as an emerging sports, has gradually attracted more attention. E-sports is different from traditional sports competitions, and needs to be carried out in a virtual environment created by electronic information equipment. The presentation of the virtual environment requires the help of display technology and display devices. With the continuous development of e-sports projects, the requirements for the presentation of virtual environments are also constantly increasing, requiring display devices that can meet the fast switching of pictures, and have the characteristics of wide color gamut, high resolution, and high contrast. Among them, the most important thing is how to improve the switching speed of the face changing. Therefore, displays with high refresh rates are constantly being developed, such as 144Hz, 165Hz, and even higher refresh rates. Such high refresh rate displays have a faster response time to the liquid crystal material used to match the ever-increasing refresh rate.
因此,如何能夠開發出滿足高刷新率的快速響應液晶組合物是電子競技顯示領域亟待解決的問題。Therefore, how to develop a fast-response liquid crystal composition that satisfies high refresh rate is an urgent problem to be solved in the field of e-sports display.
為了解決現有技術中存在的問題,本發明的第一個目的在於提供一種液晶組合物具有極快的響應速度、很低的旋轉粘度、較大的光學各向異性、較寬的向列相溫度範圍,以及良好的抗紫外和抗外界環境破壞能力,尤其適用於高刷新率的顯示器的應用中。In order to solve the problems existing in the prior art, the first object of the present invention is to provide a liquid crystal composition with extremely fast response speed, low rotational viscosity, large optical anisotropy, and wide nematic phase temperature range, as well as good UV resistance and resistance to external environmental damage, especially suitable for high refresh rate display applications.
本發明的第二個目的在於提供一種液晶顯示元件。A second object of the present invention is to provide a liquid crystal display element.
本發明的第三個目的在於提供一種液晶顯示器。A third object of the present invention is to provide a liquid crystal display.
為達到上述第一個目的,本發明採用下述技術方案: 一種液晶組合物,所述液晶組合物包含一種或多種式Ⅰ所示的化合物、一種或多種式Ⅱ所示的化合物, Ⅰ; Ⅱ; 式Ⅰ中,R 1表示碳原子數為1~10的烷基;Y 1表示CF 3或OCF 3; 式Ⅱ中,R 2、R 3各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基,且R 2、R 3中至少有一個表示碳原子數為2~10的烯基; 其中,按質量百分含量計,所述液晶組合物中,包含5.5~7.5%的式Ⅰ所示的化合物,以及12~16%的式Ⅱ所示的化合物。 In order to achieve the above-mentioned first object, the present invention adopts the following technical solutions: a liquid crystal composition, the liquid crystal composition comprises one or more compounds represented by formula I and one or more compounds represented by formula II, I; II; In formula I, R 1 represents an alkyl group having 1 to 10 carbon atoms; Y 1 represents CF 3 or OCF 3 ; In formula II, R 2 and R 3 independently represent an alkyl group having 1 to 10 carbon atoms. An alkyl group, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, and at least one of R 2 and R 3 represents an alkenyl group with 2 to 10 carbon atoms; wherein, In terms of mass percentage, the liquid crystal composition contains 5.5-7.5% of the compound represented by formula I and 12-16% of the compound represented by formula II.
進一步地,所述液晶組合物還包含一種或多種式Ⅲ所示的化合物: Ⅲ; 其中,R 4、R 5各自獨立地表示碳原子數為1~10的烷基、碳原子數為2~10的烯基,且R 4、R 5中至少有一個表示碳原子數為2~10的烯基。 Further, the liquid crystal composition further comprises one or more compounds represented by formula III: III; wherein, R 4 and R 5 independently represent an alkyl group with 1 to 10 carbon atoms, an alkenyl group with a carbon number of 2 to 10, and at least one of R 4 and R 5 represents a carbon number of 2 to 10 alkenyl groups.
進一步地,所述液晶組合物包括質量百分比含量為56~58.5%的式Ⅲ所示化合物。Further, the liquid crystal composition includes the compound represented by formula III in a mass percentage content of 56-58.5%.
進一步地,所述液晶組合物還包含一種或多種式Ⅳ所示的化合物: Ⅳ; 其中,R 6、R 7各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基,且R 6、R 7中至少有一個表示碳原子數為2~10的烯基。 Further, the liquid crystal composition further comprises one or more compounds represented by formula IV: IV; wherein, R 6 and R 7 each independently represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and an alkenyl group having 2 to 10 carbon atoms, and R 6 and at least one of R 7 represents an alkenyl group having 2 to 10 carbon atoms.
進一步地,所述液晶組合物中包括質量百分比含量為4~6%的式Ⅳ所示化合物。Further, the liquid crystal composition includes the compound represented by the formula IV in a mass percentage content of 4-6%.
進一步地,所述液晶組合物還包含一種或多種式Ⅴ所示的化合物: Ⅴ; 其中,R 8表示碳原子數為1-10的烷基、碳原子數為2-10的烯基,且R 8所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代;X 1、X 2、X 3各自獨立地表示H或F。 Further, the liquid crystal composition further comprises one or more compounds represented by formula V: V; wherein, R 8 represents an alkyl group with 1-10 carbon atoms, an alkenyl group with a carbon number of 2-10, and any one or more unconnected -CH 2 -any in the group represented by R 8 optionally substituted with cyclopentylene, cyclobutylene or cyclopropylidene; X 1 , X 2 , X 3 each independently represent H or F.
進一步地,所述液晶組合物包括質量百分比含量為13~15%的式Ⅴ所示化合物。Further, the liquid crystal composition includes a compound represented by formula V in a mass percentage content of 13-15%.
進一步地,所述液晶組合物還包含一種或多種式Ⅵ所示的化合物: Ⅵ; 其中,R 9表示碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、碳原子數為2-10的烯基、碳原子數為3-8的鏈烯氧基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代; 、 各自獨立地表示 、 、 、 、 或 ; m表示1或2;當m表示2時, 可以相同或不同。 Further, the liquid crystal composition further comprises one or more compounds represented by formula VI: VI; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, an alkoxy group with 1-10 carbon atoms, an alkenyl group with 2-10 carbon atoms, and a chain with 3-8 carbon atoms Alkenyloxy, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylidene; , represent independently , , , , or ; m represents 1 or 2; when m represents 2, Can be the same or different.
進一步地,所述液晶組合物包括質量百分比含量為2~5%的式Ⅵ所示化合物。Further, the liquid crystal composition includes the compound represented by formula VI in a mass percentage content of 2-5%.
進一步地,所述液晶組合物還包含一種或多種式Ⅶ所示的化合物: Ⅶ; 其中,R 10表示碳原子數為1-10的烷基,且R 10所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代。 Further, the liquid crystal composition further comprises one or more compounds represented by formula VII: VII; wherein, R 10 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 10 is optionally cyclopentylene, cyclobutylene or cyclopropylidene substitution.
進一步地,所述液晶組合物包括質量百分比含量為0.1~0.5%的式Ⅶ所示化合物。Further, the liquid crystal composition includes the compound represented by the formula VII in a mass percentage content of 0.1-0.5%.
進一步地,所述液晶組合物包括至少兩種式Ⅰ所示的化合物、至少兩種式Ⅱ所示的化合物、至少兩種式Ⅲ所示的化合物,以及至少三種式Ⅴ所示的化合物。Further, the liquid crystal composition includes at least two compounds represented by formula I, at least two compounds represented by formula II, at least two compounds represented by formula III, and at least three compounds represented by formula V.
本發明的第二個目的在於提供一種液晶顯示元件,其包含如上第一個目的所述的液晶組合物,所述顯示元件為有源矩陣顯示元件或無源矩陣顯示元件。The second object of the present invention is to provide a liquid crystal display element comprising the liquid crystal composition as described in the first object, and the display element is an active matrix display element or a passive matrix display element.
進一步地,所述顯示元件為高刷新率的顯示元件。例如144Hz以上、165Hz以上,乃至更高刷新率。Further, the display element is a display element with a high refresh rate. For example, above 144Hz, above 165Hz, or even higher refresh rates.
本發明的第三個目的在於提供一種液晶顯示器,其包含如上第一個目的所述的液晶組合物,所述液晶顯示器為有源矩陣顯示器或無源矩陣顯示器。The third object of the present invention is to provide a liquid crystal display comprising the liquid crystal composition as described in the first object above, and the liquid crystal display is an active matrix display or a passive matrix display.
進一步地,所述液晶顯示器為高刷新率的液晶顯示器。例如144Hz以上、165Hz以上,乃至更高刷新率。Further, the liquid crystal display is a high refresh rate liquid crystal display. For example, above 144Hz, above 165Hz, or even higher refresh rates.
本發明的有益效果如下:本發明提供的液晶組合物中,將式I和式II所示的化合物按特定的比例組合,得到的液晶組合物具有極快的響應速度、很低的旋轉粘度、較大的光學各向異性、較寬的向列相溫度範圍,以及良好的抗紫外和抗外界環境破壞能力。其尤其適合用於高刷新率的液晶顯示元器件中。 本發明的液晶顯示元件、液晶顯示器通過包含前述的本發明的液晶組合物,具有極快的響應速度、較寬的使用溫度範圍,以及良好的信賴性。 The beneficial effects of the present invention are as follows: in the liquid crystal composition provided by the present invention, the compounds represented by formula I and formula II are combined in a specific ratio, and the obtained liquid crystal composition has extremely fast response speed, very low rotational viscosity, Larger optical anisotropy, wide temperature range of nematic phase, and good resistance to ultraviolet and external environment damage. It is especially suitable for use in high refresh rate liquid crystal display components. The liquid crystal display element and liquid crystal display of the present invention have an extremely fast response speed, a wide operating temperature range, and good reliability by including the aforementioned liquid crystal composition of the present invention.
為了更清楚地說明本發明,下面結合優選實施例對本發明做進一步的說明。本領域技術人員應當理解,下面所具體描述的內容是說明性的而非限制性的,不應以此限制本發明的保護範圍。In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
[[ 液晶組合物Liquid crystal composition ]]
一種液晶組合物,前述液晶組合物其包含一種或多種式Ⅰ所示化合物、一種或多種式Ⅱ所示化合物: Ⅰ; Ⅱ; 式Ⅰ中,R 1表示碳原子數為1~10的烷基;Y 1表示CF 3或OCF 3; 式Ⅱ中,R 2、R 3各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基,且R 2、R 3中至少有一個表示碳原子數為2~10的烯基; 其中,按質量百分含量計,所述液晶組合物中,包含5.5~7.5%的式Ⅰ所示的化合物,以及12~16%的式Ⅱ所示的化合物。 A liquid crystal composition, the aforementioned liquid crystal composition comprises one or more compounds represented by formula I and one or more compounds represented by formula II: I; II; In formula I, R 1 represents an alkyl group having 1 to 10 carbon atoms; Y 1 represents CF 3 or OCF 3 ; In formula II, R 2 and R 3 independently represent an alkyl group having 1 to 10 carbon atoms. An alkyl group, an alkoxy group with 1 to 10 carbon atoms, an alkenyl group with 2 to 10 carbon atoms, and at least one of R 2 and R 3 represents an alkenyl group with 2 to 10 carbon atoms; wherein, In terms of mass percentage, the liquid crystal composition contains 5.5-7.5% of the compound represented by formula I and 12-16% of the compound represented by formula II.
在一個優選示例中,前述式Ⅰ所示化合物選自式Ⅰ1至Ⅰ6所示化合物組成的組: Ⅰ1; Ⅰ2; Ⅰ3; Ⅰ4; Ⅰ5; Ⅰ6。 In a preferred example, the aforementioned compound represented by formula I is selected from the group consisting of compounds represented by formula I1 to I6: I1; I2; I3; I4; I5; I6.
在一個優選示例中,前述一種或多種式Ⅱ所示的化合物選自式Ⅱ1至式Ⅱ7所示的化合物組成的組, Ⅱ1; Ⅱ2; Ⅱ3; Ⅱ4; Ⅱ5; Ⅱ6; Ⅱ7。 In a preferred example, the aforementioned one or more compounds represented by formula II are selected from the group consisting of compounds represented by formula II1 to formula II7, II1; II2; II3; II4; II5; II6; II7.
本發明的液晶組合物,優選地,還包含一種或多種的式Ⅲ所示化合物: Ⅲ; 其中,R 4、R 5各自獨立地表示碳原子數為1~10的烷基、碳原子數為2~10的烯基,且R 4、R 5中至少有一個表示碳原子數為2~10的烯基。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula III: III; wherein, R 4 and R 5 independently represent an alkyl group with 1 to 10 carbon atoms, an alkenyl group with a carbon number of 2 to 10, and at least one of R 4 and R 5 represents a carbon number of 2 to 10 alkenyl groups.
式Ⅲ所示的化合物具有旋轉粘度低、與其他化合物互溶性好的特點,有利於提高液晶組合物的響應速度。The compound represented by the formula III has the characteristics of low rotational viscosity and good mutual solubility with other compounds, which is beneficial to improve the response speed of the liquid crystal composition.
優選地,前述式Ⅲ所示化合物選自式Ⅲ1至Ⅲ12所示化合物組成的組: Ⅲ1; Ⅲ2; Ⅲ3; Ⅲ4; Ⅲ5; Ⅲ6; Ⅲ7; Ⅲ8; Ⅲ9; Ⅲ10; Ⅲ11; Ⅲ12。 Preferably, the compound represented by the aforementioned formula III is selected from the group consisting of compounds represented by the formula III1 to III12: III1; III2; III3; III4; III5; III6; III7; III8; III9; III10; III11; III12.
本發明的液晶組合物,優選地,還包含一種或多種式Ⅳ所示化合物: Ⅳ; 其中,R 6、R 7各自獨立地表示碳原子數為1~10的烷基、碳原子數為1~10的烷氧基、碳原子數為2~10的烯基,且R 6、R 7中至少有一個表示碳原子數為2~10的烯基。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula IV: IV; wherein, R 6 and R 7 each independently represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and an alkenyl group having 2 to 10 carbon atoms, and R 6 and at least one of R 7 represents an alkenyl group having 2 to 10 carbon atoms.
式Ⅳ所示化合物具有大的光學各向異性、旋轉粘度低和較大的展曲彈性常數,有利於提高液晶組合物的響應速度。The compound represented by formula IV has large optical anisotropy, low rotational viscosity and large splay elastic constant, which is beneficial to improve the response speed of the liquid crystal composition.
在一個優選示例中,前述式Ⅳ所示化合物選自式Ⅳ1或Ⅳ2所示化合物組成的組: Ⅳ1; Ⅳ2。 In a preferred example, the compound represented by the aforementioned formula IV is selected from the group consisting of compounds represented by the formula IV1 or IV2: IV1; IV2.
本發明的液晶組合物,優選地,還包含一種或多種式Ⅴ所示化合物: Ⅴ; 其中,R 8表示碳原子數為1-10的烷基、碳原子數為2-10的烯基,且R 8所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代;X 1、X 2、X 3各自獨立地表示H或F。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula V: V; wherein, R 8 represents an alkyl group with 1-10 carbon atoms, an alkenyl group with a carbon number of 2-10, and any one or more unconnected -CH 2 -any in the group represented by R 8 optionally substituted with cyclopentylene, cyclobutylene or cyclopropylidene; X 1 , X 2 , X 3 each independently represent H or F.
優選地,前述式Ⅴ所示化合物選自式Ⅴ1至Ⅴ12所示化合物組成的組: Ⅴ1; Ⅴ2; Ⅴ3; Ⅴ4; Ⅴ5; Ⅴ6; Ⅴ7; Ⅴ8; Ⅴ9; Ⅴ10; Ⅴ11; Ⅴ12。 Preferably, the aforementioned compound represented by formula V is selected from the group consisting of compounds represented by formula V1 to V12: V1; V2; V3; V4; V5; V6; V7; V8; V9; V10; V11; V12.
本發明的液晶組合物,優選地,還包含一種或多種式Ⅵ所示的化合物: Ⅵ; 其中,R 9表示碳原子數為1-10的烷基、碳原子數為1-10的烷氧基、碳原子數為2-10的烯基、碳原子數為3-8的鏈烯氧基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代; 、 各自獨立地表示 、 、 、 、 或 ; m表示1或2;當m表示2時, 可以相同或不同。 The liquid crystal composition of the present invention, preferably, further comprises one or more compounds represented by formula VI: VI; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, an alkoxy group with 1-10 carbon atoms, an alkenyl group with 2-10 carbon atoms, and a chain with 3-8 carbon atoms Alkenyloxy, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally substituted by cyclopentylene, cyclobutylene or cyclopropylidene; , represent independently , , , , or ; m represents 1 or 2; when m represents 2, Can be the same or different.
優選地,前述式Ⅵ所示化合物選自式Ⅵ1至Ⅵ7所示化合物組成的組: Ⅵ1; Ⅵ2; Ⅵ3; Ⅵ4; Ⅵ5; Ⅵ6; Ⅵ7; 其中,R 9表示碳原子數為1-10的烷基,且R 9所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代。 Preferably, the compound represented by the aforementioned formula VI is selected from the group consisting of compounds represented by formula VI1 to VI7: VI1; VI2; VI3; VI4; VI5; VI6; VI7; wherein, R 9 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 9 is optionally cyclopentylene, cyclobutylene or cyclopropylidene substitution.
本發明的液晶組合物,優選地,前述液晶組合物還包含一種或多種式Ⅶ所示化合物: Ⅶ; 其中,R 10表示碳原子數為1-10的烷基,且R 10所示基團中任意一個或多個不相連的-CH 2-任選被亞環戊基、亞環丁基或亞環丙基取代。 In the liquid crystal composition of the present invention, preferably, the aforementioned liquid crystal composition further comprises one or more compounds represented by formula VII: VII; wherein, R 10 represents an alkyl group with 1-10 carbon atoms, and any one or more unconnected -CH 2 - in the group represented by R 10 is optionally cyclopentylene, cyclobutylene or cyclopropylidene substitution.
優選地,前述式Ⅶ所示化合物選自式Ⅶ1至Ⅶ5所示化合物組成的組: Ⅶ1; Ⅶ2; Ⅶ3; Ⅶ4; Ⅶ5。 Preferably, the aforementioned compound represented by formula VII is selected from the group consisting of compounds represented by formula VII1 to VII5: VII1; VII2; VII3; VII4; VII5.
本發明的液晶組合物,優選地,前述液晶組合物包括至少兩種式Ⅰ所示化合物、至少兩種式Ⅱ所示化合物、至少兩種式Ⅲ所示化合物,以及至少三種式Ⅴ所示化合物。In the liquid crystal composition of the present invention, preferably, the aforementioned liquid crystal composition comprises at least two compounds represented by formula I, at least two compounds represented by formula II, at least two compounds represented by formula III, and at least three compounds represented by formula V .
本發明的液晶組合物,優選地,前述液晶組合物包括質量百分比含量為5.5~7.5%的式Ⅰ所示化合物、質量百分比含量為12~16%的式Ⅱ所示化合物、質量百分比含量為56~58.5%的式Ⅲ所示化合物、質量百分比含量為4~8%的式Ⅳ所示化合物、質量百分比含量為13~15%的式Ⅴ所示化合物、質量百分比含量為2~5%的式Ⅵ所示化合物,以及質量百分比含量為0.1~0.5%的式Ⅶ所示化合物。In the liquid crystal composition of the present invention, preferably, the aforementioned liquid crystal composition includes the compound represented by the formula I with a content of 5.5-7.5% by mass, the compound represented by the formula II with a content of 12-16% by mass, and the content of 56% by mass. ~58.5% of the compound represented by the formula III, 4-8% by mass of the compound represented by the formula IV, 13-15% by mass of the compound represented by the formula V, and 2-5% by mass of the formula The compound represented by VI, and the compound represented by the formula VII whose content is 0.1 to 0.5% by mass.
更進一步優選地,前述液晶組合物包括質量百分比含量為5.5~7.5%的式Ⅰ1和式Ⅰ3所示化合物、質量百分比含量為12~16%的式Ⅱ2和式Ⅱ7所示化合物、質量百分比含量為56~58.5%的式Ⅲ2和式Ⅲ5所示化合物、質量百分比含量為4~6%的式Ⅳ2所示化合物、質量百分比含量為13~15%的式Ⅴ2、式Ⅴ7和式Ⅴ8所示化合物、質量百分比含量為2~5%的式Ⅵ3和/或式Ⅵ6所示化合物,以及質量百分比含量為0.1~0.5%的式Ⅶ5所示化合物。More preferably, the aforementioned liquid crystal composition comprises compounds represented by formula I1 and formula I3 with a mass percentage content of 5.5 to 7.5%, and compounds represented by formula II2 and formula II7 with a mass percentage content of 12 to 16%. 56 to 58.5% of the compounds of formula III2 and formula III5, the compounds of formula IV2 of 4 to 6% by mass, the compounds of formula V2 of 13 to 15% by mass, the compounds of formula V7 and formula V8, The compound represented by the formula VI3 and/or the formula VI6 with a mass percentage content of 2~5%, and the compound represented by the formula VII5 with a mass percent content of 0.1~0.5%.
本發明的液晶組合物,優選地,介電各向異性為3.0~3.1,光學各向異性為0.114~0.116,清亮點為75~78℃,旋轉粘度低於41mPa.s。進一步優選,清亮點為76~77℃,旋轉粘度低於40 mPa.s。In the liquid crystal composition of the present invention, preferably, the dielectric anisotropy is 3.0-3.1, the optical anisotropy is 0.114-0.116, the clearing point is 75-78°C, and the rotational viscosity is lower than 41 mPa.s. Further preferably, the clearing point is 76~77°C, and the rotational viscosity is lower than 40 mPa.s.
前述的碳原子數為1~10的烷基,可以列舉出,例如,甲基、乙基、正丙基、異丙基、正丁基、異丁基、叔丁基、正戊基、異戊基、己基、庚基、辛基、壬基、癸基等。The aforementioned alkyl group having 1 to 10 carbon atoms includes, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isobutyl Amyl, hexyl, heptyl, octyl, nonyl, decyl, etc.
前述的碳原子數為1~10的烷氧基,可以列舉出,例如,甲氧基、乙氧基、正丙氧基、異丙氧基、正丁氧基、異丁氧基、戊氧基、己氧基、庚氧基、辛氧基、壬氧基、癸氧基等。The aforementioned alkoxy group having 1 to 10 carbon atoms includes, for example, methoxy group, ethoxy group, n-propoxy group, isopropoxy group, n-butoxy group, isobutoxy group, and pentyloxy group. group, hexyloxy, heptyloxy, octyloxy, nonyloxy, decyloxy and the like.
前述的碳原子數為2~10的烯基,可以列舉出,例如,乙烯基、1-丙烯基、1-丁烯基、2-丁烯基、3-丁烯基、1-戊烯基、2-戊烯基、3-戊烯基、4-戊烯基、1-己烯基、2-己烯基、3-己烯基等。The aforementioned alkenyl group having 2 to 10 carbon atoms includes, for example, vinyl, 1-propenyl, 1-butenyl, 2-butenyl, 3-butenyl, and 1-pentenyl , 2-pentenyl, 3-pentenyl, 4-pentenyl, 1-hexenyl, 2-hexenyl, 3-hexenyl and the like.
前述的碳原子數為1~10的烷基中一個或多個不相鄰的-CH 2-被亞環丙基、亞環丁基或亞環戊基取代後得到的基團,可以列舉出,例如環丙基、環丁基、環戊基、甲基亞環丙基、乙基亞環丙基、丙基亞環丙基、異丙基亞環丙基、正丁基亞環丙基、異丁基亞環丙基、叔丁基亞環丙基、甲基亞環丁基、乙基亞環丁基、丙基亞環丁基、異丙基亞環丁基、正丁基亞環丁基、異丁基亞環丁基、叔丁基亞環丁基、甲基亞環戊基、乙基亞環戊基、丙基亞環戊基、異丙基亞環戊基、正丁基亞環戊基、異丁基亞環戊基等。 The group obtained after one or more non-adjacent -CH 2 - in the aforementioned alkyl group having 1 to 10 carbon atoms is substituted by a cyclopropylene group, a cyclobutylene group or a cyclopentylene group can be enumerated. , such as cyclopropyl, cyclobutyl, cyclopentyl, methylcyclopropylidene, ethylcyclopropylidene, propylcyclopropylene, isopropylcyclopropylidene, n-butylcyclopropylidene , isobutylcyclopropylene, tert-butylcyclopropylene, methylcyclobutylene, ethylcyclobutylene, propylcyclobutylene, isopropylcyclobutylene, n-butylene Cyclobutylene, isobutylcyclobutylene, tert-butylcyclobutylene, methylcyclopentylene, ethylcyclopentylene, propylcyclopentylene, isopropylcyclopentylene, n- Butylcyclopentylene, isobutylcyclopentylene, etc.
本發明的液晶組合物中,可選的,還可以加入各種功能的摻雜劑,在含有摻雜劑的情況下,摻雜劑的含量優選在液晶組合物中所占的質量百分比為0.01~1%,這些摻雜劑可以列舉出,例如抗氧化劑、紫外線吸收劑、手性劑。In the liquid crystal composition of the present invention, optionally, dopants with various functions can also be added. In the case of containing dopants, the content of dopants in the liquid crystal composition preferably accounts for a mass percentage of 0.01~ 1%, and these dopants include, for example, antioxidants, ultraviolet absorbers, and chiral agents.
抗氧化劑可以列舉出: ; ; t表示1~10的整數。 Antioxidants can be listed as: ; ; t represents an integer from 1 to 10.
光穩定劑可以列舉: ; 。 Light stabilizers can be listed as follows: ; .
手性劑可以列舉: ; ; ; ; 。 Chiral agents include: ; ; ; ; .
[液晶顯示元件、液晶顯示器][Liquid crystal display element, liquid crystal display]
為達到上述第二個目的,本發明提供如下技術方案: 一種液晶顯示元件,其包含如上所述的液晶組合物,所述液晶顯示元件為有源矩陣顯示元件或無源矩陣顯示元件。 In order to achieve the above-mentioned second purpose, the present invention provides the following technical solutions: A liquid crystal display element comprising the above-mentioned liquid crystal composition, the liquid crystal display element is an active matrix display element or a passive matrix display element.
為達到上述第三個目的,本發明提供如下技術方案: 一種液晶顯示器,其包含如上第一個目的所述的液晶組合物,所述液晶顯示器為有源矩陣顯示器或無源矩陣顯示器。 In order to achieve the above-mentioned third purpose, the present invention provides the following technical solutions: A liquid crystal display comprising the liquid crystal composition as described in the first object above, the liquid crystal display being an active matrix display or a passive matrix display.
前述有源矩陣顯示元件或顯示器,具體可以列舉出,例如TN-TFT或IPS-TFT或FFS-TFT液晶顯示元件或其他TFT顯示器。Specific examples of the aforementioned active matrix display elements or displays include TN-TFT, IPS-TFT, or FFS-TFT liquid crystal display elements or other TFT displays.
本發明的液晶顯示元件或液晶顯示器包含本發明公開的液晶組合物,具有極快的響應速度、較寬的使用溫度範圍,以及良好的信賴性。The liquid crystal display element or liquid crystal display of the present invention comprises the liquid crystal composition disclosed in the present invention, and has extremely fast response speed, wide operating temperature range, and good reliability.
對於本發明的液晶顯示元件、液晶顯示器,只要含有本發明的液晶組合物,則對其結構沒有任何限定,本領域技術人員能夠根據所需的性能選擇合適的液晶顯示元件、液晶顯示器的結構。The liquid crystal display element and liquid crystal display of the present invention are not limited in structure as long as they contain the liquid crystal composition of the present invention, and those skilled in the art can select an appropriate liquid crystal display element and liquid crystal display structure according to the required performance.
實施例Example
為了更清楚地說明本發明,下面結合優選實施例對本發明做進一步的說明。本領域技術人員應當理解,下面所具體描述的內容是說明性的而非限制性的,不應以此限制本發明的保護範圍。In order to illustrate the present invention more clearly, the present invention will be further described below with reference to the preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.
本發明中,製備方法如無特殊說明則均為常規方法,所用的原料如無特別說明均可從公開的商業途徑獲得,百分比均是指質量百分比,溫度為攝氏度(℃),液晶化合物也成為液晶單體,其他符號的具體意義及測試條件如下: Cp表示液晶清亮點(℃),DSC定量法測試; Δn表示光學各向異性,Δn=n e-n o,其中,n o為尋常光的折射率,n e為非尋常光的折射率,測試條件為25±2℃,589nm,阿貝折射儀測試; Δε表示介電各向異性,Δε=ε ∥-ε ⊥,其中,ε ∥為平行於分子軸的介電常數,ε ⊥為垂直於分子軸的介電常數,測試條件為25±0.5℃,20微米反平行盒,INSTEC:ALCT-CUST-4C測試; VHR表示電壓保持率(%),測試條件為60±2℃、電壓為±5V、脈衝寬度為10ms、電壓保持時間166.7ms。測試設備為TOYO Model6254液晶性能綜合測試儀; γ 1表示旋轉粘度(mPa·s),測試條件為25±0.5℃,20微米反平行盒,INSTEC:ALCT-CUST-4C測試。 K 11為展曲彈性常數,K 33為彎曲彈性常數,測試條件為:25±2℃、INSTEC:ALCT-IR1、20微米平行盒; τ表示響應時間(ms),測試儀器為DMS-501,測試條件為25±0.5℃,測試盒為IPS測試盒,電極間距和電極寬度均為10微米,摩擦方向與電極夾角為10°; 殘像:液晶顯示器件的殘像,是在顯示區域內使規定的固定圖案顯示1000小時後,通過目測對進行全畫面均勻顯示時的固有圖案的殘留水準進行以下的4等級評價: ◎無殘留; ○有極少量殘留,為可以容許的水準; △有殘留,為不能允許的水準; ×有殘留,相當差。 In the present invention, the preparation methods are conventional methods unless otherwise specified. The raw materials used can be obtained from public commercial channels unless otherwise specified. The percentages refer to mass percentages. Liquid crystal monomer, the specific meanings and test conditions of other symbols are as follows: Cp represents the clearing point of liquid crystal (℃), measured by DSC quantitative method; Δn represents optical anisotropy, Δn=n e -no , where n o is ordinary light , ne is the refractive index of extraordinary light, the test condition is 25±2℃, 589nm, Abbe refractometer test; Δε represents dielectric anisotropy, Δε=ε ∥ -ε ⊥ , where ε ∥ is the dielectric constant parallel to the molecular axis, ε ⊥ is the dielectric constant perpendicular to the molecular axis, the test condition is 25±0.5℃, 20 μm antiparallel cell, INSTEC:ALCT-CUST-4C test; VHR represents the voltage holding ratio (%), the test conditions are 60±2℃, the voltage is ±5V, the pulse width is 10ms, and the voltage holding time is 166.7ms. The test equipment is TOYO Model6254 liquid crystal performance comprehensive tester; γ 1 represents rotational viscosity (mPa·s), the test conditions are 25±0.5°C, 20 μm anti-parallel cell, INSTEC:ALCT-CUST-4C test. K 11 is the flexural elastic constant, K 33 is the bending elastic constant, the test conditions are: 25±2℃, INSTEC:ALCT-IR1, 20 micron parallel box; τ represents the response time (ms), the testing instrument is DMS-501, The test conditions are 25±0.5°C, the test box is an IPS test box, the electrode spacing and electrode width are both 10 microns, and the angle between the rubbing direction and the electrodes is 10°; After the predetermined fixed pattern was displayed for 1000 hours, the residual level of the original pattern when the entire screen was uniformly displayed was evaluated by the following 4-level evaluation: ◎No residue; ○A very small amount of residue, which is an acceptable level; △There is residue , which is an unacceptable level; × There is residual, which is quite poor.
液晶組合物的製備方法如下:將各液晶單體按照一定配比稱量後放入不銹鋼燒杯中,將裝有各液晶單體的不銹鋼燒杯置於磁力攪拌儀器上加熱融化,待不銹鋼燒杯中的液晶單體大部份融化後,往不銹鋼燒杯中加入磁力轉子,將混合物攪拌均勻,冷卻到室溫後即得液晶組合物。The preparation method of the liquid crystal composition is as follows: each liquid crystal monomer is weighed according to a certain proportion and put into a stainless steel beaker, the stainless steel beaker containing each liquid crystal monomer is placed on a magnetic stirring apparatus, heated and melted, and the liquid crystal in the stainless steel beaker is heated and melted. After most of the liquid crystal monomers are melted, a magnetic rotor is added to the stainless steel beaker, the mixture is stirred evenly, and the liquid crystal composition is obtained after cooling to room temperature.
本發明實施例液晶單體結構用代碼表示,液晶環結構、端基、連接基團的代碼表示方法見下表1、表2。
表1 環結構的對應代碼
舉例: ,其代碼為CPWP-3-OT; ,其代碼為CPWP-3-T; ,其代碼為CC-3-V1; ,其代碼為PP-1-2V1; ,其代碼為CPP- 1V-2; ,其代碼為PGU- 3-F; ,其代碼為PPGU-Cp-F; ,其代碼為PGUQU-3-F。 Example: , whose code is CPWP-3-OT; , whose code is CPWP-3-T; , whose code is CC-3-V1; , its code is PP-1-2V1; , its code is CPP-1V-2; , its code is PGU-3-F; , whose code is PPGU-Cp-F; , whose code is PGUQU-3-F.
實施例Example 11
液晶組合物的配方及相應的性能如下表3所示。
表3 實施例1的液晶組合物的配方及相應的性能
實施例Example 22
液晶組合物的配方及相應的性能如下表4所示。
表4 實施例2的液晶組合物的配方及相應的性能
實施例Example 33
液晶組合物的配方及相應的性能如下表5所示。
表5 實施例3的液晶組合物的配方及相應的性能
實施例Example 44
液晶組合物的配方及相應的性能如下表6所示。
表6 實施例4的液晶組合物的配方及相應的性能
實施例Example 55
液晶組合物的配方及相應的性能如下表7所示。
表7 實施例5的液晶組合物的配方及相應的性能
實施例Example 66
液晶組合物的配方及相應的性能如下表8所示。
表8 實施例6的液晶組合物的配方及相應的性能
實施例Example 77
液晶組合物的配方及相應的性能如下表9所示。
表9 實施例7的液晶組合物的配方及相應的性能
實施例Example 88
液晶組合物的配方及相應的性能如下表10所示。
表10 實施例8的液晶組合物的配方及相應的性能
對比例Comparative ratio 11
液晶組合物的配方及相應的性能如下表11所示。
表11 對比例1的液晶組合物的配方及相應的性能
與實施例6相比,對比例1液晶組合物中,不包含式Ⅰ所示化合物。使用結構相近的CPWP-3-2、CPWP-3-O2等量替代式Ⅰ所示化合物。雖然結構相近,但性能相差很大,對比例1液晶組合物介電各向異性相對於實施例6下降十分明顯,需要更大的驅動電壓才能將液晶分子完全驅動,從而消耗更多的電能。與實施例6相比,如果在相同的驅動電壓下,由於對比例1的液晶組合物無法完全驅動將降低其透過率,透過率降低便需要增加背光亮度才能獲得滿足需求的畫面亮度,從而消耗更多的電能。並且,對比例1旋轉粘度的增加,液晶組合物的響應速度與γ1/K 11相關,γ1/K 11越小,響應速度越快。因此,對比例1液晶組合物的響應速度更慢。 Compared with Example 6, the liquid crystal composition of Comparative Example 1 does not contain the compound represented by formula I. Use CPWP-3-2 and CPWP-3-O2 with similar structure to replace the compound represented by formula I. Although the structure is similar, the performance is very different. The dielectric anisotropy of the liquid crystal composition in Comparative Example 1 is significantly lower than that in Example 6, and a larger driving voltage is required to fully drive the liquid crystal molecules, thereby consuming more electrical energy. Compared with Example 6, under the same driving voltage, the transmittance of the liquid crystal composition of Comparative Example 1 will be reduced because the liquid crystal composition of Comparative Example 1 cannot be fully driven. If the transmittance is reduced, it is necessary to increase the brightness of the backlight to obtain the required picture brightness, thus consuming more power. In addition, with the increase of the rotational viscosity of Comparative Example 1, the response speed of the liquid crystal composition is related to γ1/K 11 , and the smaller the γ1/K 11 , the faster the response speed. Therefore, the response speed of the liquid crystal composition of Comparative Example 1 was slower.
對比例Comparative ratio 22
液晶組合物的配方及相應的性能如下表12所示。
表12 對比例2的液晶組合物的配方及相應的性能
與實施例6相比,對比例2液晶組合物中,不包含式Ⅱ所示化合物,使用化合物CPP-3-2、CPP-5-3分別等量替代CPP-1V-2、CPP-3-2V1。對比例2液晶組合物與實施例6液晶組合物Δε、ε ⊥、γ 1基本相同,但清亮點Cp、光學各向異性Δn、展曲彈性常數K 11明顯小於實施例6,因此,對比例2液晶組合物相對於實施例6液晶組合,抗高溫能力較差,並且相同延遲量設計下,響應速度更慢。 Compared with Example 6, the liquid crystal composition of Comparative Example 2 does not contain the compound represented by formula II, and compounds CPP-3-2 and CPP-5-3 are used to replace CPP-1V-2 and CPP-3- 2v1. The liquid crystal composition of Comparative Example 2 is basically the same as the liquid crystal composition of Example 6 Δε, ε ⊥ , γ 1 , but the clearing point Cp, optical anisotropy Δn, and splay elastic constant K 11 are significantly smaller than those of Example 6. Therefore, the comparative example 2. Compared with the liquid crystal composition of Example 6, the liquid crystal composition has poor high temperature resistance, and the response speed is slower under the same retardation design.
對比例Comparative ratio 33
液晶組合物的配方及相應的性能如下表13所示。
表13 對比例3的液晶組合物的配方及相應的性能
與實施例6相比,對比例3液晶組合物中,不包含式Ⅰ、式Ⅱ所示化合物。使用結構相近的CPWP-3-2、CPWP-3-O2等量替代式Ⅰ所示化合物,使用化合物CPP-3-2、CPP-5-3分別等量替代式Ⅱ所示化合物。並且,為了保證對比例3液晶組合物Δε與實施例6基本相同,對其他化合物含量進行了微小調整。從上述表13可以看出,對比例3與實施例6相比Δε、ε ⊥、Cp、Δn基本相同,但γ1增大、K 11減小。因此,對比例3液晶組合物響應速度更慢。 Compared with Example 6, the liquid crystal composition of Comparative Example 3 does not contain the compounds represented by Formula I and Formula II. Use CPWP-3-2 and CPWP-3-O2 with similar structures to replace the compound of formula I, and use compounds CPP-3-2 and CPP-5-3 to replace the compound of formula II with the same amount. In addition, in order to ensure that the liquid crystal composition Δε of Comparative Example 3 is substantially the same as that of Example 6, the contents of other compounds were slightly adjusted. As can be seen from Table 13 above, compared with Example 6, Comparative Example 3 has basically the same Δε, ε ⊥ , Cp, and Δn, but γ1 increases and K 11 decreases. Therefore, the response speed of the liquid crystal composition of Comparative Example 3 was slower.
對比例Comparative ratio 44
液晶組合物的配方及相應的性能如下表14所示。
表14 對比例4的液晶組合物的配方及相應的性能
從上述表14可以看出,對比例4與實施例6相比Δε、ε ⊥、Cp、Δn基本相同,但γ 1增大、K 11減小。因此,對比例4液晶組合物響應速度更慢。 It can be seen from Table 14 above that, compared with Example 6, Δε, ε⊥ , Cp, and Δn are basically the same in Comparative Example 4, but γ 1 increases and K 11 decreases. Therefore, the response speed of the liquid crystal composition of Comparative Example 4 was slower.
對比例Comparative ratio 55
液晶組合物的配方及相應的性能如下表15所示。
表15 對比例5的液晶組合物的配方及相應的性能
與實施例8相比,對比例5清亮點Cp下降明顯,抗高溫能力變差。Compared with Example 8, in Comparative Example 5, the clearing point Cp decreased significantly, and the high temperature resistance was deteriorated.
對比例Comparative ratio 66
液晶組合物的配方及相應的性能如下表16所示。
表16 對比例6的液晶組合物的配方及相應的性能
與實施例8相比,對比例6Δε下降明顯,需要更大的驅動電壓才能將液晶分子完全驅動,從而消耗更多的電能。Compared with Example 8, the Δε of Comparative Example 6 is significantly reduced, and a larger driving voltage is required to fully drive the liquid crystal molecules, thereby consuming more electrical energy.
對比例Comparative ratio 77
液晶組合物的配方及相應的性能如下表17所示。
表17 對比例7的液晶組合物的配方及相應的性能
與實施例8相比,對比例7清亮點Cp下降明顯,抗高溫能力變差。Compared with Example 8, in Comparative Example 7, the clearing point Cp decreased significantly, and the high temperature resistance was deteriorated.
下述的表18為實施例、對比例液晶組合物灌入不同厚度測試盒,在相同驅動電壓下測試響應的對比資料。The following Table 18 is the comparison data of the test response under the same driving voltage by pouring the liquid crystal compositions of the Examples and Comparative Examples into test boxes with different thicknesses.
首先,按照相同延遲量(Δn*d=340nm)設計,其中,Δn為光學各向異性,d代表測試盒厚度。Δn越大,可以灌入盒厚越小的測試盒。然後將實施例與對比例液晶組合物分別灌入對應厚度的測試盒中,在7V電壓下進行驅動對比測試響應速度。
表18 實施例、對比例響應時間測試資料
從上述表18可以看出,與對比例提供的液晶組合物相比,本發明的實施例的液晶組合物在在相同延遲量設計下,具有更快的響應速度。由於對比例1、6、7液晶組合物Δε明顯與其他液晶組合物相差較大,其驅動電壓也相差較大,只有在使用相同的驅動電壓進行響應時間的測試才有可比性。It can be seen from the above Table 18 that, compared with the liquid crystal compositions provided in the comparative examples, the liquid crystal compositions of the examples of the present invention have a faster response speed under the same retardation design. Since the Δε of the liquid crystal compositions of Comparative Examples 1, 6, and 7 is significantly different from that of other liquid crystal compositions, and the driving voltages thereof are also greatly different, the comparability can only be achieved when the same driving voltage is used to test the response time.
下述的表19为實施例、对比例液晶组合物高温信赖性測試数据。The following Table 19 is the test data of high temperature reliability of the liquid crystal compositions of Examples and Comparative Examples.
液晶組合物在液晶顯示元件或液晶顯示器生產過程中的信賴性通過紫外老化試驗並進行VHR測試來進行,液晶組合物紫外試驗前後的VHR數據變化越小,抗紫外能力越強。因此,通過比較各個實施例、對比例在試驗前後的VHR數據的變化來判斷抗紫外能力。The reliability of the liquid crystal composition in the production process of liquid crystal display elements or liquid crystal displays is tested by UV aging test and VHR test. The smaller the change of VHR data before and after the UV test, the stronger the UV resistance. Therefore, the anti-ultraviolet ability is judged by comparing the changes of the VHR data of each example and the comparative example before and after the test.
液晶組合物工作過程中的信賴性可以通過背光老化試驗並進行VHR測試來進行。在長時間的背光照射下,液晶組合物將長時間處在可見光、紫外線和60~70℃的工作環境中,受到外界環境的破壞。液晶組合物背光試驗前後的VHR數據變化越小,抗外界環境破壞能力越強。因此,通過比較各個實施例、對比例在試驗前後的VHR數據的變化來判斷抗外界環境破壞能力。The reliability in the working process of the liquid crystal composition can be tested by backlight aging test and VHR test. Under long-time backlight irradiation, the liquid crystal composition will be exposed to visible light, ultraviolet rays and a working environment of 60-70° C. for a long time, and will be damaged by the external environment. The smaller the change of the VHR data before and after the backlight test of the liquid crystal composition, the stronger the resistance to external environmental damage. Therefore, the ability to resist external environmental damage is judged by comparing the changes of the VHR data of each embodiment and the comparative example before and after the test.
首先,在進行紫外、背光老化試驗之前,測定液晶組合物的VHR數據作為初始VHR數據,然後,對液晶組合物進行紫外、背光老化試驗,在試驗後再次測定液晶組合物的VHR數據。First, before the ultraviolet and backlight aging test, the VHR data of the liquid crystal composition was measured as the initial VHR data, then, the ultraviolet and backlight aging test was carried out on the liquid crystal composition, and the VHR data of the liquid crystal composition was measured again after the test.
紫外老化試驗:將液晶組合物灌入相應測試盒中,在波長為365nm的紫外燈下照射5000mJ能量。Ultraviolet aging test: pour the liquid crystal composition into the corresponding test box, and irradiate 5000mJ energy under an ultraviolet lamp with a wavelength of 365nm.
背光試驗:將液晶組合物灌入相應測試盒中,封口,放到光強為25000nit的背光上進行背光老化試驗,老化1000H後進行VHR測試。Backlight test: pour the liquid crystal composition into a corresponding test box, seal it, put it on a backlight with a light intensity of 25,000 nit, and perform a backlight aging test, and perform a VHR test after aging for 1,000 hours.
在老化試驗後VHR數據相對於初始VHR數據變化越小,說明該液晶組合物抗外界環境破壞能力越強,因此,該液晶組合物的信賴性就越高。The smaller the change of the VHR data after the aging test relative to the initial VHR data, the stronger the ability of the liquid crystal composition to resist the damage of the external environment, and therefore, the higher the reliability of the liquid crystal composition.
另外,將各實施例和對比例液晶組合物灌注入液晶測試盒,進行殘像測試,測試結果一併示於下述的表19中。
表19 各實施例、對比例液晶組合物信賴性測試資料
從上述表19可以看出,本發明的實施例液晶組合物紫外、背光後的VHR下降較小,對殘像缺陷改善更為明顯。It can be seen from the above Table 19 that the VHR of the liquid crystal compositions of the examples of the present invention decreased less after ultraviolet and backlight, and the afterimage defect was improved more obviously.
下述的表20為實施例、對比例液晶組合物低溫儲存實驗資料。The following Table 20 is the experimental data of low temperature storage of liquid crystal compositions of Examples and Comparative Examples.
低溫儲存實驗,使用5ml玻璃瓶和4μm液晶測試盒分別進行測試。分別取1ml實施例、對比例液晶組合物放入5ml玻璃瓶中,作為第一組低溫儲存實驗。將實施例、對比例液晶組合物灌注液晶測試盒中,作為第二組低溫儲存實驗。將灌注了液晶組合物的玻璃瓶放置在-20℃手套箱,將灌注了液晶組合物的液晶測試盒分別放置在-10℃、-20℃手套箱.
表20 實施例、對比例低溫儲存實驗資料
從上述表20可以看出,本發明的實施例液晶組合物具有更寬的向列相溫度範圍。It can be seen from the above Table 20 that the liquid crystal compositions of the examples of the present invention have a wider temperature range of the nematic phase.
綜上所述,本發明的液晶組合物具有極快的響應速度、很低的旋轉粘度、較大的光學各向異性、較寬的向列相溫度範圍,以及良好的抗紫外和抗外界環境破壞能力。本發明的液晶顯示元件、液晶顯示器通過包含前述的本發明的液晶組合物,具有極快的響應速度、較寬的使用溫度範圍,以及良好的信賴性。To sum up, the liquid crystal composition of the present invention has extremely fast response speed, low rotational viscosity, large optical anisotropy, wide temperature range of nematic phase, and good resistance to ultraviolet and external environment destructive ability. The liquid crystal display element and the liquid crystal display of the present invention have an extremely fast response speed, a wide operating temperature range, and good reliability by including the aforementioned liquid crystal composition of the present invention.
顯然,本發明的上述實施例僅僅是為清楚地說明本發明所作的舉例,而並非是對本發明的實施方式的限定,對於所屬領域的普通技術人員來說,在上述說明的基礎上還可以做出其它不同形式的變化或變動,這裡無法對所有的實施方式予以窮舉,凡是屬於本發明的技術方案所引伸出的顯而易見的變化或變動仍處於本發明的保護範圍之列。Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. Changes or changes in other different forms cannot be exhausted here, and all obvious changes or changes derived from the technical solutions of the present invention are still within the protection scope of the present invention.
無。none.
無。none.
無。none.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347053.0 | 2021-03-31 | ||
| CN202110347053.0A CN113234448B (en) | 2021-03-31 | 2021-03-31 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI768855B true TWI768855B (en) | 2022-06-21 |
| TW202239945A TW202239945A (en) | 2022-10-16 |
Family
ID=77130863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW110115360A TWI768855B (en) | 2021-03-31 | 2021-04-28 | Liquid crystal composition, liquid crystal display element and liquid crystal display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113234448B (en) |
| TW (1) | TWI768855B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115772410B (en) * | 2021-09-07 | 2024-06-07 | 晶美晟光电材料(南京)有限公司 | Liquid crystal composition with high polarization anchoring energy and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5308538A (en) * | 1990-12-07 | 1994-05-03 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Supertwist liquid-crystal display |
| EP0460436B1 (en) * | 1990-06-08 | 1997-03-12 | MERCK PATENT GmbH | Supertwist liquid-.crystal display |
| US5714087A (en) * | 1993-08-11 | 1998-02-03 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Supertwist liquid-crystal display |
| US6028655A (en) * | 1996-10-31 | 2000-02-22 | Merck Patent Gesellschaft Mit Beschrankter Haftung | TN and STN liquid-crystal display |
| JP4132146B2 (en) * | 1996-08-28 | 2008-08-13 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング | Liquid crystal mixture |
| WO2020184142A1 (en) * | 2019-03-14 | 2020-09-17 | Jnc株式会社 | Compounds, liquid crystal composition, and liquid crystal display element |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675063A (en) * | 2012-04-27 | 2012-09-19 | 石家庄诚志永华显示材料有限公司 | Polyfluoro-substituted diphenyl acetylene compound as well as preparation method and application thereof |
| CN102816572B (en) * | 2012-08-28 | 2014-09-03 | 石家庄诚志永华显示材料有限公司 | Large-dielectric-anisotropy high-optical-anisotropy liquid crystal composition and preparation method and application thereof |
| CN109880639B (en) * | 2019-03-29 | 2020-12-01 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition, liquid crystal display element, liquid crystal display |
-
2021
- 2021-03-31 CN CN202110347053.0A patent/CN113234448B/en active Active
- 2021-04-28 TW TW110115360A patent/TWI768855B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460436B1 (en) * | 1990-06-08 | 1997-03-12 | MERCK PATENT GmbH | Supertwist liquid-.crystal display |
| US5308538A (en) * | 1990-12-07 | 1994-05-03 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Supertwist liquid-crystal display |
| US5714087A (en) * | 1993-08-11 | 1998-02-03 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Supertwist liquid-crystal display |
| JP4132146B2 (en) * | 1996-08-28 | 2008-08-13 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング | Liquid crystal mixture |
| US6028655A (en) * | 1996-10-31 | 2000-02-22 | Merck Patent Gesellschaft Mit Beschrankter Haftung | TN and STN liquid-crystal display |
| WO2020184142A1 (en) * | 2019-03-14 | 2020-09-17 | Jnc株式会社 | Compounds, liquid crystal composition, and liquid crystal display element |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202239945A (en) | 2022-10-16 |
| CN113234448B (en) | 2024-10-01 |
| CN113234448A (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103305232B (en) | Nematic phase liquid crystal composition | |
| CN104560058A (en) | Liquid crystal composition and application thereof in liquid crystal display | |
| CN109593040B (en) | Polymerizable compound containing propenyl tetrapolymerized group and composition comprising the same | |
| CN108342196A (en) | Liquid crystal composition and liquid crystal display element or liquid crystal display comprising the liquid crystal composition | |
| TWI768855B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN113388407B (en) | Quick response liquid crystal composition and application | |
| CN111454733A (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display | |
| CN111363560A (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display | |
| CN111518569A (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display | |
| CN115125008A (en) | Positive dielectric anisotropy liquid crystal composition, liquid crystal display element or liquid crystal display | |
| CN113122272B (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display | |
| CN104479689A (en) | liquid crystal composition | |
| TWI765683B (en) | Liquid crystal composition, liquid crystal display element or liquid crystal display comprising the same | |
| TWI796679B (en) | Positive dielectric anisotropy liquid crystal composition, liquid crystal display element or liquid crystal display | |
| CN111471469A (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| TWI734416B (en) | Liquid crystal composition, liquid crystal display element, liquid crystal display | |
| CN113122270B (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN115125011B (en) | Liquid crystal composition, liquid crystal display element or liquid crystal display | |
| CN111518570A (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN103484130B (en) | Liquid crystal composition containing butyl and alkyl compounds | |
| CN110713838B (en) | Polymerizable liquid crystal composition and liquid crystal display device | |
| TWI731141B (en) | Liquid crystal composition of negative monomer containing cyclopentyl cyclohexene group and liquid crystal display element thereof | |
| TW202530374A (en) | A high-reliability liquid crystal composition and its application | |
| CN112940735A (en) | Liquid crystal composition, liquid crystal display element and liquid crystal display | |
| CN115141634A (en) | Liquid crystal composition, liquid crystal display element comprising same and liquid crystal display |