CN114437736A - Liquid crystal composition containing terphenyl and application thereof - Google Patents
Liquid crystal composition containing terphenyl and application thereof Download PDFInfo
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- CN114437736A CN114437736A CN202011204980.9A CN202011204980A CN114437736A CN 114437736 A CN114437736 A CN 114437736A CN 202011204980 A CN202011204980 A CN 202011204980A CN 114437736 A CN114437736 A CN 114437736A
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- 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
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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
- 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
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Abstract
The invention relates to a liquid crystal composition, in particular to a nematic phase liquid crystal composition, and more particularly relates to a liquid crystal composition containing terphenyl and application thereof; the liquid crystal composition has low rotary viscosity, large elastic constant and large optical anisotropy, further has low ratio of the rotary viscosity to the elastic constant and thinner liquid crystal layer thickness, can obviously improve the response speed and contrast of a liquid crystal display when being used in the liquid crystal display, and simultaneously contains the monomer represented by the general formula IV, can effectively improve DC type residual image and effectively improve display effect.
Description
Technical Field
The invention relates to a liquid crystal composition, in particular to a nematic phase liquid crystal composition, and more particularly relates to a liquid crystal composition containing terphenyl and application thereof; the liquid crystal composition provided by the invention has fast response time and large contrast, and can improve the response speed and the contrast of a liquid crystal display when being used in the liquid crystal display.
Background
In recent years, LCD displays have been widely used in various products as the most mainstream displays, and among them, negative LCD displays are widely used in mobile phones, notebook computers, tablet computers, computer monitors, televisions, etc. because of their unique high transmittance characteristics.
At present, the negative liquid crystal display has the main disadvantage of slow response speed, and how to improve the response speed becomes an important subject of the negative liquid crystal display.
With the increasing demand of users for the display effect of the liquid crystal display, in order to satisfy the display effect with high performance and high quality, the liquid crystal panel tends to use an alignment layer (PI) with high impedance characteristics, and the alignment layer with high impedance has lower ionicity, and is very effective for improving Flicker (Flicker) and ionic residual image of the liquid crystal display, but the PI with high impedance has a strong ability of adsorbing ions, and is easy to generate RDC (residual voltage), thereby forming a DC residual image problem.
In view of this, the invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a liquid crystal composition containing terphenyl, which has low rotational viscosity, large elastic constant and large optical anisotropy, so as to realize the aim of improving the response speed and the contrast of a liquid crystal display; meanwhile, the liquid crystal composition has negative dielectric anisotropy, has higher transmittance and has the effect of improving the flicker of the liquid crystal display when being used in the liquid crystal display; in addition, the liquid crystal composition can also weaken the RDC effect, and is very effective for improving DC type residual image and recovering the residual image.
It is known in the art that the reduction of the clearing point of the composition can achieve the purpose of reducing the rotational viscosity, but as the clearing point is reduced, the upper limit of the temperature for using the display can be reduced, and the liquid crystal composition provided by the invention has high clearing point, low rotational viscosity, large elastic constant and large optical anisotropy, can reduce the RDC effect, is very effective for improving DC type residual image and recovering the residual image, thereby achieving a liquid crystal display with fast response and better display effect.
Specifically, the liquid crystal composition comprises at least one of compounds represented by a general formula I, at least one of compounds represented by a general formula II, at least one of compounds represented by a general formula III and at least one of compounds represented by a general formula IV;
wherein, in the general formula I, L1Represents S or O; r1Represents H or C1～C12The linear alkyl group of (1); x represents
In the general formula II, R2、R3Each independently represents C1～C12Straight chain alkyl of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a represents 0 or 1; a. the1Represent
In the general formula III, R4、R5Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a);
in the general formula IV, R6、R7Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12The linear alkenyl group of (1); l is2、L3、L4Each independently represents H orF。
The liquid crystal composition is used in a liquid crystal display, and can effectively improve the response speed and the contrast of the liquid crystal display and improve DC afterimage.
Preferably, the compound represented by the general formula I is selected from one or more of the following formulas I-1 to I-36:
preferably, the compound represented by formula II is selected from one or more of formulae IIA to IIF:
wherein R is2、R3Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by formula II is selected from one or more of formula IIA1 to formula IIF 48:
preferably, the compound represented by formula III is selected from one or more of formulae IIIA to IIIB:
wherein R is4、R5Each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by formula III is selected from one or more of formulae IIIA1 to IIIB 45:
preferably, the compound represented by formula IV is selected from one or more of formulae IVA to IVB:
wherein R is6Represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r7Represents C1～C7Straight chain alkyl or C1～C7Straight chain alkoxy of (a);
the compound represented by the general formula IV is selected from one or more of the formulas IVA 1-IVB 36:
preferably, the liquid crystal composition further includes at least one compound represented by formula V;
wherein R is8、R9Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a. the2、A3Each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
in the present invention, the compound represented by the above general formula V is a neutral two-ring structure compound having a very low rotational viscosity, and is very effective for reducing the rotational viscosity of a liquid crystal composition.
Preferably, the compound represented by formula V is selected from one or more of formulae VA to VC:
wherein R is8、R9Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
more preferably, the compound represented by formula V is selected from one or more of formulae VA1 to formula VC 24:
preferably, the liquid crystal composition further comprises at least one compound represented by formula VI;
wherein the content of the first and second substances,R10、R11each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a. the4Represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
preferably, the compound represented by formula VI is selected from one or more of the group consisting of formula VIA through formula VIB:
wherein R is10、R11Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
more preferably, the compound represented by formula VI is selected from one or more of the group consisting of formula VIA1 to formula VIB 63:
the liquid crystal composition of the present invention may contain, in addition to the above-mentioned compounds, a conventional antioxidant, ultraviolet absorber, photostabilizer, infrared absorber, or the like.
Preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-50% of a compound represented by the general formula I;
(2) 5-70% of a compound represented by the general formula II;
(3) 1-40% of a compound represented by the general formula III;
(4) 1-50% of a compound represented by the general formula IV;
(5) 0 to 70% of a compound represented by the general formula V;
(6) 0 to 50% of a compound represented by the general formula VI.
Preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-30% of a compound represented by the general formula I;
(2) 10-70% of a compound represented by the general formula II;
(3) 3-30% of a compound represented by the general formula III;
(4) 1-30% of a compound represented by the general formula IV;
(5) 10-60% of a compound represented by the general formula V;
(6) 0 to 35% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-20% of a compound represented by the general formula I;
(2) 15-65% of a compound represented by the general formula II;
(3) 4-25% of a compound represented by the general formula III;
(4) 1-25% of a compound represented by the general formula IV;
(5) 15-55% of a compound represented by the general formula V;
(6) 0 to 30% of a compound represented by the general formula VI;
more preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 25-55% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 20-50% of a compound represented by the general formula V;
(6) 0 to 20% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-25% of a compound represented by the general formula I;
(2) 20-70% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 27 to 60% of a compound represented by the general formula V;
(6) 0 to 20% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 30-55% of a compound represented by the general formula II;
(3) 4-15% of a compound represented by the general formula III;
(4) 3-15% of a compound represented by the general formula IV;
(5) 27 to 46% of a compound represented by the general formula V;
(6) 0 to 10% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 6-30% of a compound represented by the general formula I;
(2) 30-70% of a compound represented by the general formula II;
(3) 1-20% of a compound represented by the general formula III;
(4) 5-30% of a compound represented by the general formula IV;
(5) 20-58% of a compound represented by the general formula V;
(6) 0 to 15% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 7-18% of a compound represented by the general formula I;
(2) 30-50% of a compound represented by the general formula II;
(3) 1-12% of a compound represented by the general formula III;
(4) 9-25% of a compound represented by the general formula IV;
(5) 27 to 46% of a compound represented by the general formula V;
(6) 0 to 12% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-15% of a compound represented by the general formula I;
(2) 33-65% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 15-53% of a compound represented by the general formula V;
(6) 0 to 15% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-7% of a compound represented by the general formula I;
(2) 33-55% of a compound represented by the general formula II;
(3) 6-15% of a compound represented by the general formula III;
(4) 5-15% of a compound represented by the general formula IV;
(5) 27 to 46% of a compound represented by the general formula V;
(6) 0 to 10% of a compound represented by the general formula VI.
The liquid crystal composition provided by the invention improves dielectric anisotropy and reduces rotational viscosity through the compound represented by the general formula I; the dielectric anisotropy and the intersolubility are improved by the compound represented by the general formula II; the elastic constant and clearing point are improved by the compound represented by the general formula III; increasing optical anisotropy and enhancing dielectric anisotropy by the compound represented by the general formula IV; reducing the rotational viscosity by adding a compound of formula V; the clearing point is increased by adding the compound of the general formula VI; thereby realizing the liquid crystal composition required by the fast response liquid crystal display.
With the increasing demand of users for the display effect of the liquid crystal display, in order to satisfy the display effect with high performance and high quality, the liquid crystal panel tends to use an alignment layer (PI) with high impedance characteristics, and the alignment layer with high impedance has lower ionicity, and is very effective for improving Flicker (Flicker) and ionic residual image of the liquid crystal display, but the PI with high impedance has a strong ability of adsorbing ions, and is easy to generate RDC (residual voltage), thereby forming a DC residual image problem. The research personnel of the invention find that the addition of the terphenyl single crystal represented by the general formula IV provided by the invention can weaken the RDC effect, and is very effective for improving DC type residual image and recovering the residual image.
The method for producing the liquid crystal composition of the present invention is not particularly limited, and it can be produced by mixing two or more compounds by a conventional method, such as a method of mixing the different components at a high temperature and dissolving each other, wherein the liquid crystal composition is dissolved and mixed in a solvent for the compounds, and then the solvent is distilled off under reduced pressure; alternatively, the liquid crystal composition of the present invention can be prepared by a conventional method, for example, by dissolving the component having a smaller content in the main component having a larger content at a higher temperature, or by dissolving each of the components in an organic solvent, for example, acetone, chloroform or methanol, and then mixing the solutions to remove the solvent.
The liquid crystal composition has low rotary viscosity, large elastic constant and large optical anisotropy, further has low ratio of the rotary viscosity to the elastic constant and thinner liquid crystal layer thickness, can obviously improve the response speed and contrast of a liquid crystal display when used in the liquid crystal display, and simultaneously contains the monomer represented by the general formula IV, can effectively improve DC type afterimage and effectively improve display effect.
The invention also provides the application of the liquid crystal composition in a liquid crystal display.
Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Unless otherwise indicated, percentages in the present invention are weight percentages; the temperature units are centigrade; Δ n represents optical anisotropy (25 ℃); epsilon∥And ε⊥Respectively represent the parallel and perpendicular dielectric constants (25 ℃, 1000 Hz); Δ ε represents the dielectric anisotropy (25 ℃, 1000 Hz); γ 1 represents rotational viscosity (mpa.s, 25 ℃); cp represents the clearing point (. degree. C.) of the liquid crystal composition; k11、K22、K33Respectively representing the splay, twist and bend elastic constants (pN, 25 ℃).
In each of the following examples, the group structure of the liquid crystal compound is represented by a code shown in Table 1.
Table 1: radical structure code of liquid crystal compound
Take the following compound structure as an example:
expressed as: c1OSO1B
Expressed as: 3CPW02
In the following examples, the liquid crystal composition was prepared by a thermal dissolution method, comprising the steps of: weighing the liquid crystal compound by a balance according to the weight percentage, wherein the weighing and adding sequence has no specific requirements, generally weighing and mixing the liquid crystal compound in sequence from high melting point to low melting point, heating and stirring at 60-100 ℃ to uniformly melt all the components, filtering, performing rotary evaporation, and finally packaging to obtain the target sample.
In the following examples, the weight percentages of the components of the liquid crystal compositions and the performance parameters of the liquid crystal compositions are shown in the following tables.
Example 1
Table 2: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 2
Table 3: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 3
Table 4: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 4
Table 5: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 5
Table 6: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 6
Table 7: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 7
Table 8: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 8
Table 9: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 9
Table 10: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 10
Table 11: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 11
Table 12: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 12
Table 13: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 13
Table 14: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 14
Table 15: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 15
Table 16: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 16
Table 17: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 17
Table 18: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 18
Table 19: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 19
Table 20: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 20
Table 21: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 21
Table 22: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 22
Table 23: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 23
Table 24: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 24
Table 25: weight percentage and performance parameters of each component in liquid crystal composition
Example 25
Table 26: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 26
Table 27: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 27
Table 28: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 28
Table 29: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 29
Table 30: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 30
Table 31: the weight percentage and performance parameters of each component in the liquid crystal composition
Example 31
Table 32: the weight percentage and performance parameters of each component in the liquid crystal composition
Comparative example 1
Table 33: the weight percentage and performance parameters of each component in the liquid crystal composition
The liquid crystal compositions obtained in example 1 and comparative example 1 were compared together for each of their performance parameter values, see table 34.
Table 34: comparison of Performance parameters of liquid Crystal compositions
| Item | △n | △ε | Cp | γ1 | K11 | K22 | K33 | Kavg | d(μm) | d2*γ1/K22 |
| Example 1 | 0.122 | -3.5 | 81 | 88 | 16.5 | 8.3 | 18 | 14.3 | 2.9 | 89.2 |
| Comparative example 1 | 0.104 | -3.9 | 81 | 108 | 15.2 | 7.6 | 16.2 | 13.0 | 3.4 | 164.3 |
By comparison, it can be seen that: compared with comparative example 1, the liquid crystal composition provided by example 1 has lower rotational viscosity, larger optical anisotropy (delta n) and larger elastic constant, gamma 1 of example 1 is reduced by about 19%, delta n is improved by 0.018, and d is increased by2*γ1/K22The reduction by about 45 percent, namely the response speed of about 45 percent can be improved when the liquid crystal display is used. The Kavg of example 1 is increased by 1.3 relative to comparative example 1, while K is known in the artavgThe contrast of the liquid crystal display can be improved, so that the liquid crystal composition provided by the invention has higher contrast.
From the above examples, it can be seen that the liquid crystal composition provided by the present invention has a low rotational viscosity, a larger optical anisotropy and a larger elastic constant, and can effectively improve the response speed and contrast of the liquid crystal display in the display. Therefore, the liquid crystal composition provided by the invention is suitable for a liquid crystal display device, and can obviously improve the response speed characteristic and the contrast characteristic of the liquid crystal display device.
Host liquid crystals were prepared as a precursor, and the specific formulation is shown in Table 35.
Table 35: weight percentage of each component in Host liquid crystal
| Compound code | Weight percent (%) |
| 2CPWO2 | 10 |
| 3CPWO2 | 10 |
| 3CCWO2 | 10 |
| 5CCWO2 | 10 |
| 3CWO2 | 14 |
| 5CWO2 | 6 |
| 3CPO1 | 5 |
| 3CC2 | 17 |
| 3CC4 | 8 |
| 1CPP3 | 5 |
| 3CPP1 | 5 |
3PGiWO2 and 3PWP2 were mixed with HOST liquid crystal at a weight ratio of 5%: 95% of the resulting mixture was mixed with liquid crystal, and 3PGiWO2+ Host, 3PWP2+ Host, and Host were poured into TN mode test cell, respectively, to test RDC. The specific test method of the RDC comprises the following steps: at 60 ℃, 10V direct current voltage is added for 30min, and then the residual voltage is tested after the voltage is removed for 10 min. The specific experimental results are shown in table 36:
table 36: RDC test results of mixture of each compound monomer and Host
| Name (R) | RDC(V) |
| 3PGiWO2+Host | 0.40 |
| 3PWP2+Host | 0.38 |
| Host | 0.52 |
The experimental results show that 3 pgibo 2 and 3PWP2 have lower RDC when used in a liquid crystal mixture. According to the above results, the terphenyl single crystal represented by the general formula IV can reduce the RDC effect, and is very effective for improving DC type afterimage and recovering the afterimage.
Although the invention has been described in detail hereinabove by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that many modifications and improvements can be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A terphenyl-containing liquid crystal composition is characterized by comprising at least one of compounds represented by a general formula I, at least one of compounds represented by a general formula II, at least one of compounds represented by a general formula III and at least one of compounds represented by a general formula IV;
wherein, in the general formula I, L1Represents S or O; r1Represents H or C1～C12The linear alkyl group of (1); x represents
In the general formula II, R2、R3Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a represents 0 or 1; a. the1Represents
In the general formula III, R4、R5Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a);
in the general formula IV, R6、R7Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); l is2、L3、L4Each independently represents H or F.
2. The terphenyl-containing liquid crystal composition according to claim 1, wherein the compound represented by the general formula I is one or more selected from the group consisting of formula I-1 to formula I-36:
3. the terphenyl-containing liquid crystal composition according to claim 1, wherein the compound represented by the general formula II is one or more selected from the group consisting of formula IIA to formula IIF:
wherein R is2、R3Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by formula II is selected from one or more of formulae IIA1 to IIF 48:
4. the terphenyl-containing liquid crystal composition according to claim 1, wherein the compound represented by the general formula III is one or more selected from the group consisting of formulae IIIA to IIIB:
wherein R is4、R5Each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by formula III is selected from one or more of formulae IIIA1 to IIIB 45:
5. the terphenyl-containing liquid crystal composition according to claim 1,
the compound represented by formula IV is selected from one or more of formulas IVA to IVB:
wherein R is6Represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r7Represents C1～C7Straight chain alkyl or C1～C7Straight chain alkoxy of (a);
the compound represented by the general formula IV is selected from one or more of the formulas IVA 1-IVB 36:
6. the terphenyl-containing liquid crystal composition according to any one of claims 1 to 5, wherein the liquid crystal composition further comprises at least one of compounds represented by general formula V;
wherein R is8、R9Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a. the2、A3Each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
preferably, the compound represented by formula V is selected from one or more of formulae VA to VC:
wherein R is8、R9Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
more preferably, the compound represented by formula V is selected from one or more of formulae VA1 to formula VC 24:
7. the terphenyl-containing liquid crystal composition according to claim 6, wherein said liquid crystal composition further comprises at least one of compounds represented by general formula VI;
wherein R is10、R11Each independently represents C1～C12Straight chain alkyl group of (1), C1～C12Linear alkoxy of (5) or C2～C12A linear alkenyl group of (a); a. the4Represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
preferably, the compound represented by formula VI is selected from one or more of the group consisting of formula VIA through formula VIB:
wherein R is10、R11Each independently represents C1～C7Straight chain alkyl group of (1), C1～C7Linear alkoxy of (5) or C2～C7A linear alkenyl group of (a);
more preferably, the compound represented by formula VI is selected from one or more of the group consisting of formula VIA1 through formula VIB 63:
8. the terphenyl-containing liquid crystal composition according to claim 7, wherein the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-50% of a compound represented by the general formula I;
(2) 5-70% of a compound represented by the general formula II;
(3) 1-40% of a compound represented by the general formula III;
(4) 1-50% of a compound represented by the general formula IV;
(5) 0 to 70% of a compound represented by the general formula V;
(6) 0 to 50% of a compound represented by the general formula VI.
9. The terphenyl-containing liquid crystal composition according to claim 7, wherein the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-30% of a compound represented by the general formula I;
(2) 10-70% of a compound represented by the general formula II;
(3) 3-30% of a compound represented by the general formula III;
(4) 1-30% of a compound represented by the general formula IV;
(5) 10-60% of a compound represented by the general formula V;
(6) 0 to 35% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-20% of a compound represented by the general formula I;
(2) 15-65% of a compound represented by the general formula II;
(3) 4-25% of a compound represented by the general formula III;
(4) 1-25% of a compound represented by the general formula IV;
(5) 15-55% of a compound represented by the general formula V;
(6) 0 to 30% of a compound represented by the general formula VI;
more preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 25-55% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 20-50% of a compound represented by the general formula V;
(6) 0 to 20% of a compound represented by the general formula VI;
or the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-25% of a compound represented by the general formula I;
(2) 20-70% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 27 to 60% of a compound represented by the general formula V;
(6) 0 to 20% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 30-55% of a compound represented by the general formula II;
(3) 4-15% of a compound represented by the general formula III;
(4) 3-15% of a compound represented by the general formula IV;
(5) 27-46% of a compound represented by the general formula V;
(6) 0 to 10% of a compound represented by the general formula VI;
or, the liquid crystal composition comprises the following components in percentage by mass:
(1) 6-30% of a compound represented by the general formula I;
(2) 30-70% of a compound represented by the general formula II;
(3) 1-20% of a compound represented by the general formula III;
(4) 5-30% of a compound represented by the general formula IV;
(5) 20-58% of a compound represented by the general formula V;
(6) 0 to 15% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 7-18% of a compound represented by the general formula I;
(2) 30-50% of a compound represented by the general formula II;
(3) 1-12% of a compound represented by the general formula III;
(4) 9-25% of a compound represented by the general formula IV;
(5) 27 to 46% of a compound represented by the general formula V;
(6) 0 to 12% of a compound represented by the general formula VI;
or the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-15% of a compound represented by the general formula I;
(2) 33-65% of a compound represented by the general formula II;
(3) 4-20% of a compound represented by the general formula III;
(4) 3-20% of a compound represented by the general formula IV;
(5) 15-53% of a compound represented by the general formula V;
(6) 0 to 15% of a compound represented by the general formula VI;
preferably, the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-7% of a compound represented by the general formula I;
(2) 33-55% of a compound represented by the general formula II;
(3) 6-15% of a compound represented by the general formula III;
(4) 5-15% of a compound represented by the general formula IV;
(5) 27 to 46% of a compound represented by the general formula V;
(6) 0 to 10% of a compound represented by the general formula VI.
10. Use of a liquid crystal composition according to any one of claims 1 to 9 in a liquid crystal display.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204980.9A CN114437736A (en) | 2020-11-02 | 2020-11-02 | Liquid crystal composition containing terphenyl and application thereof |
| PCT/CN2021/115378 WO2022088915A1 (en) | 2020-11-02 | 2021-08-30 | Liquid crystal composition comprising terphenyl and application thereof |
| TW110140149A TWI816210B (en) | 2020-11-02 | 2021-10-28 | A kind of liquid crystal composition containing terphenyl and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011204980.9A CN114437736A (en) | 2020-11-02 | 2020-11-02 | Liquid crystal composition containing terphenyl and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114437736A true CN114437736A (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011204980.9A Pending CN114437736A (en) | 2020-11-02 | 2020-11-02 | Liquid crystal composition containing terphenyl and application thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114437736A (en) |
| TW (1) | TWI816210B (en) |
| WO (1) | WO2022088915A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116083091A (en) * | 2022-12-26 | 2023-05-09 | 北京八亿时空液晶科技股份有限公司 | High-contrast negative liquid crystal composition and application thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11905448B2 (en) | 2021-10-22 | 2024-02-20 | Merck Patent Gmbh | Liquid-crystal medium comprising polymerizable compounds |
| EP4357438A1 (en) * | 2022-10-19 | 2024-04-24 | Merck Patent GmbH | Liquid-crystal medium comprising polymerizable compounds |
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| CN106479513A (en) * | 2015-08-05 | 2017-03-08 | 默克专利股份有限公司 | Liquid crystal media |
| CN109837096A (en) * | 2017-11-24 | 2019-06-04 | 默克专利股份有限公司 | Liquid crystal media |
| CN110951493A (en) * | 2018-09-27 | 2020-04-03 | 默克专利股份有限公司 | Liquid-crystalline medium |
| CN112111283A (en) * | 2020-09-01 | 2020-12-22 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition with quick response and application thereof |
| CN112175629A (en) * | 2020-09-14 | 2021-01-05 | 北京八亿时空液晶科技股份有限公司 | Terphenyl-containing quick response liquid crystal composition and application thereof |
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| CN104087312B (en) * | 2014-06-17 | 2016-07-06 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition and application thereof |
| CN107267156B (en) * | 2016-04-07 | 2020-05-05 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition and application thereof |
| CN107446591A (en) * | 2016-05-31 | 2017-12-08 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition containing dibenzofurans class compound and its application |
| CN107674686B (en) * | 2016-08-02 | 2021-05-04 | 石家庄诚志永华显示材料有限公司 | Liquid crystal composition |
| TWI744458B (en) * | 2017-02-27 | 2021-11-01 | 日商捷恩智股份有限公司 | Compound with dibenzofuran ring, liquid crystal composition and liquid crystal display element |
| JP2021028299A (en) * | 2017-11-30 | 2021-02-25 | Jnc株式会社 | Compound having dibenzothiophene ring, liquid crystal composition and liquid crystal display element |
| CN109943347A (en) * | 2017-12-20 | 2019-06-28 | 石家庄诚志永华显示材料有限公司 | Liquid-crystal composition and liquid crystal display element |
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2020
- 2020-11-02 CN CN202011204980.9A patent/CN114437736A/en active Pending
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- 2021-08-30 WO PCT/CN2021/115378 patent/WO2022088915A1/en active Application Filing
- 2021-10-28 TW TW110140149A patent/TWI816210B/en active
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| CN106479513A (en) * | 2015-08-05 | 2017-03-08 | 默克专利股份有限公司 | Liquid crystal media |
| CN109837096A (en) * | 2017-11-24 | 2019-06-04 | 默克专利股份有限公司 | Liquid crystal media |
| CN110951493A (en) * | 2018-09-27 | 2020-04-03 | 默克专利股份有限公司 | Liquid-crystalline medium |
| CN112111283A (en) * | 2020-09-01 | 2020-12-22 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition with quick response and application thereof |
| CN112175629A (en) * | 2020-09-14 | 2021-01-05 | 北京八亿时空液晶科技股份有限公司 | Terphenyl-containing quick response liquid crystal composition and application thereof |
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| CN116083091A (en) * | 2022-12-26 | 2023-05-09 | 北京八亿时空液晶科技股份有限公司 | High-contrast negative liquid crystal composition and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI816210B (en) | 2023-09-21 |
| WO2022088915A1 (en) | 2022-05-05 |
| TW202219252A (en) | 2022-05-16 |
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