CN113072959A - Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof - Google Patents

Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof Download PDF

Info

Publication number
CN113072959A
CN113072959A CN202010007002.9A CN202010007002A CN113072959A CN 113072959 A CN113072959 A CN 113072959A CN 202010007002 A CN202010007002 A CN 202010007002A CN 113072959 A CN113072959 A CN 113072959A
Authority
CN
China
Prior art keywords
general formula
compound represented
liquid crystal
compound
percentage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010007002.9A
Other languages
Chinese (zh)
Inventor
储士红
陈卯先
陈海光
姜天孟
未欣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Bayi Space LCD Technology Co Ltd
Original Assignee
Beijing Bayi Space LCD Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Bayi Space LCD Technology Co Ltd filed Critical Beijing Bayi Space LCD Technology Co Ltd
Priority to CN202010007002.9A priority Critical patent/CN113072959A/en
Priority to PCT/CN2020/077009 priority patent/WO2021134881A1/en
Priority to TW109122127A priority patent/TW202126787A/en
Publication of CN113072959A publication Critical patent/CN113072959A/en
Pending legal-status Critical Current

Links

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
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
    • 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
    • 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

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

The invention belongs to the technical field of liquid crystal materials, and particularly relates to a high-elastic-constant liquid crystal composition containing a terphenyl structure and application thereof. The liquid crystal composition with the large elastic constant and the terphenyl structure at least comprises one or more compounds represented by a general formula I, one or more compounds represented by a general formula II and one or more compounds represented by a general formula III. The liquid crystal composition comprises: (1) 1-35% of a compound represented by general formula I; (2) 5-35% of a compound represented by general formula II; (3) 20-70% of a compound represented by the general formula III. The liquid crystal composition has a large elastic constant and a fast response speed, and the improvement of the elastic constant of the liquid crystal is beneficial to improving the arrangement of liquid crystal molecules, avoiding dark state light leakage and being used in a liquid crystal display to improve the contrast ratio of the liquid crystal display.

Description

Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof
Technical Field
The invention belongs to the technical field of liquid crystal materials, and particularly relates to a high-elastic-constant liquid crystal composition containing a terphenyl structure and application thereof.
Background
Currently, LCD displays are widely used in various products as the most mainstream displays, wherein IPS and FFS mode displays are widely used in mobile phones, notebook computers, tablet computers, computer monitors, televisions, etc. because of their unique hard screen characteristics and very wide viewing angle characteristics.
However, IPS and FFS liquid crystal molecules are prone to dark state light leakage upon initial alignment, and are significantly inferior to VA (MVA, PVA, UV2A, PSVA) displays in contrast performance.
Disclosure of Invention
In order to solve the above-mentioned technical problems, the present invention provides a nematic liquid crystal composition. The liquid crystal composition has a large elastic constant and a fast response speed, and the improvement of the elastic constant of the liquid crystal is beneficial to improving the arrangement of liquid crystal molecules, avoiding dark state light leakage and being used in a liquid crystal display to improve the contrast ratio of the liquid crystal display.
The liquid crystal composition with the large elastic constant and the terphenyl structure at least comprises one or more compounds represented by a general formula I:
Figure BDA0002355610130000011
wherein R is1、R2Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
the liquid crystal composition at least comprises one or more compounds represented by a general formula II:
Figure BDA0002355610130000012
wherein R is3Represents C1～C12Linear alkyl, linear alkoxy or C2～C12Linear olefins ofA group;
A1represents:
Figure BDA0002355610130000021
n10 or 1;
X1representative F, CF3Or OCF3；
The liquid crystal composition at least comprises one or more compounds represented by the general formula III:
Figure BDA0002355610130000022
wherein R is4、R5Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A2、A3each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
the liquid crystal composition comprises 1-35% of a compound represented by a general formula I, 5-35% of a compound represented by a general formula II and 20-70% of a compound represented by a general formula III.
It is known in the art that increasing the clearing point of the liquid crystal composition can achieve the purpose of increasing the elastic constant, but as the clearing point increases, the rotational viscosity of the liquid crystal composition increases, thereby causing the response time of the liquid crystal display to become slow. The researchers of the invention find that the compound represented by the general formula I has a very large elastic constant and is low in rotational viscosity, so that the elastic constant of the liquid crystal composition can be improved, the rotational viscosity can be kept unchanged, and the purposes of high contrast and quick response required by a liquid crystal display can be further met. According to the invention, the elastic constant of the liquid crystal composition is increased by adding the compound represented by the general formula I, and the dielectric anisotropy and the optical anisotropy of the liquid crystal composition are improved by adding the compound represented by the general formula II; in order to avoid too high rotational viscosity of the liquid crystal composition, the compound of formula III is further added. By reasonably configuring the liquid crystal compound and utilizing the synergistic effect of the liquid crystal compound, the obtained liquid crystal composition has a large elastic constant on one hand and a low rotational viscosity on the other hand, thereby realizing a liquid crystal display with high contrast and quick response.
The optimization of each of the liquid crystal compounds described above will be further described below.
The compound of the general formula I provided by the invention is a compound containing a cyclohexene structure, has a large elastic constant, and is very effective in improving the elastic constant of a liquid crystal composition. Specifically, the compound represented by the general formula I provided by the invention is selected from one or more of IA-IB:
Figure BDA0002355610130000023
wherein R is1、R2Each independently represents C1～C7Straight chain alkyl or C2～C7Linear alkenyl groups of (a).
Preferably, the compounds represented by the general formula I provided by the invention are selected from one or more of the formulas IA 1-IB 45:
Figure BDA0002355610130000031
Figure BDA0002355610130000041
Figure BDA0002355610130000051
Figure BDA0002355610130000061
more preferably, the compound represented by the general formula I provided by the present invention is selected from one or more of IA3, IA12, IA21, IA23, IA24, IA25, IA39, IA43, IB3, IB5, IB8, IB10, IB26, IB27, IB30, IB 31; particularly preferably, the compound represented by the general formula I provided by the invention is selected from one or more of IA3, IA21, IA23, IA24, IA25, IA39, IA43, IB3, IB5, IB8, IB10, IB26, IB27, IB30 and IB 31; most preferably, the compound represented by the general formula I provided by the present invention is selected from one or more of IA3, IA21, IA23, IA39, IB3, IB5, IB8, IB10, IB26, IB27, IB30 and IB 31.
Preferably, the liquid crystal composition provided by the invention comprises 3-30%, 3-15%, 10-30%, 5-20%, 8-30%, 3-22% or 6-18% of the compound represented by the general formula I; particularly preferably, the liquid crystal composition provided by the invention comprises 4-27%, 4-15%, 8-16%, 13-27% or 8-20% of the compound represented by the general formula I.
The compound of the general formula II provided by the invention is a liquid crystal compound containing a terphenyl structure, has very large dielectric anisotropy and large optical anisotropy, and is very effective for improving the dielectric anisotropy and the optical anisotropy of a liquid crystal composition. Specifically, the compound represented by the general formula II provided by the invention is selected from one or more of IIA-IIJ:
Figure BDA0002355610130000062
Figure BDA0002355610130000071
wherein R is3Each independently represents C1～C7Linear alkyl group of (1).
Preferably, the compound represented by the general formula II is selected from one or more of the following formulas IIA 1-IIJ 5:
Figure BDA0002355610130000072
Figure BDA0002355610130000081
Figure BDA0002355610130000091
more preferably, the compound represented by the general formula II provided by the invention is selected from one or more of IIA2, IIA3, IIB2, IIB3, IIC2, IIC3, IID2, IID3, IID5, IIE3, IIF3, IIG3 and IIG 4; particularly preferably, the compound represented by the general formula II provided by the invention is selected from one or more of IIA2, IIA3, IIB3, IID2, IID3, IIF3, IIG3 and IIG 4.
Preferably, the liquid crystal composition provided by the invention comprises 6-33%, 6-30%, 8-27%, 6-16%, 8-30%, 13-30%, 6-25% or 14-25% of the compound represented by the general formula II; particularly preferably, the liquid crystal composition provided by the invention comprises 8-27%, 11-27%, 8-16%, 13-27% or 8-20% of the compound represented by the general formula II.
Specifically, the compound represented by the general formula III provided by the invention is selected from one or more of formulas IIIA-IIIC:
Figure BDA0002355610130000092
Figure BDA0002355610130000101
wherein R is4Each independently represents C1～C7The linear alkyl group of (1); r5Each independently represents C1～C7Linear alkyl, linear alkoxy or C2～C7Linear alkenyl groups of (a).
Preferably, the compound represented by the general formula III is selected from one or more of formulas IIIA1 to IIIC 24:
Figure BDA0002355610130000102
Figure BDA0002355610130000111
Figure BDA0002355610130000121
more preferably, the compound represented by the general formula III provided by the present invention is selected from one or more of IIIA3, IIIA7, IIIA11, IIIA12, IIIA25, IIIA29, IIIA31, IIIA37, IIIB18, IIIB22, IIIC2, IIIC4, IIIC15, and IIIC 20; particularly preferably, the compound represented by the general formula III provided by the invention is selected from one or more of IIIA25, IIIA29, IIIA37, IIIB18, IIIB22, IIIC2, IIIC4, IIIC15 and IIIC 20.
Preferably, the liquid crystal composition provided by the invention comprises 30-65%, 40-65% or 44-65% of the compound represented by the general formula III; particularly preferably, the liquid crystal composition provided by the invention comprises 33-60% or 48-60% of the compound represented by the general formula III.
The liquid crystal composition also comprises the following components in percentage by mass:
(1) 1-35% of a compound represented by the general formula I;
(2) 5-35% of a compound represented by the general formula II;
(3) 20-70% of a compound represented by the general formula III;
(4) 0 to 35% of a compound represented by the general formula IV;
(5) 0 to 55% of a compound represented by the general formula V;
wherein the liquid crystal composition further comprises one or more compounds represented by the general formula IV:
Figure BDA0002355610130000131
wherein R is6、R7Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A4represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
the liquid crystal composition further comprises one or more compounds represented by the general formula V:
Figure BDA0002355610130000134
wherein R is8Represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
X2representative F, CF3Or OCF3；
L1、L2Each independently represents H or F;
A5represents:
Figure BDA0002355610130000132
specifically, the compound represented by the general formula IV provided by the invention is selected from one or more of IVA to IVB:
Figure BDA0002355610130000133
wherein, R is6、R7Each independently represents C1～C7Linear alkyl, linear alkoxy or C2～C7Linear alkenyl groups of (a).
Preferably, the compound represented by the general formula IV is selected from one or more of IVA 1-IVB 62:
Figure BDA0002355610130000141
Figure BDA0002355610130000151
Figure BDA0002355610130000161
Figure BDA0002355610130000171
Figure BDA0002355610130000181
more preferably, the compound of formula IV provided by the present invention is selected from one or more of IVA3, IVA5, IVA8, IVA10, IVA26, IVA31, IVA33, IVA53, IVB3, IVB5, IVB8, IVB10, IVB13, IVB25, IVB30, IVB 35; particularly preferably, the compound of formula IV provided by the present invention is selected from one or more of IVA3, IVA8, IVA10, IVA26, IVA31, IVA33, IVA53, IVB3, IVB8, IVB13, IVB25, IVB30, IVB 35.
Preferably, the liquid crystal composition provided by the invention comprises 0-28%, 0-20%, 0-23%, 0-18%, 0-25%, 0-15% or 0-13% of the compound represented by the general formula IV; particularly preferably, the liquid crystal composition provided by the invention comprises 1-25% or 4-23% of the compound represented by the general formula I.
Specifically, the compound represented by the general formula V provided by the invention is selected from one or more of VA to VF:
Figure BDA0002355610130000182
wherein R is8Each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); x2Each independently represent F, CF3Or OCF3. Preferably, R8Each independently represents C1～C5Straight chain alkyl or C2～C5Linear alkenyl groups of (a).
The liquid crystal composition provided by the invention also comprises one or more compounds represented by the general formula VI:
Figure BDA0002355610130000191
wherein R is9、R10Each independently represent F, C1～C12Straight chain alkyl or C2～C12A linear alkenyl group of (a);
the liquid crystal composition further comprises a compound represented by formula VII or formula VIII:
Figure BDA0002355610130000192
wherein R is11、R12、R13Each independently represents C1～C12The linear alkyl group of (1); l is3、L4、L5Each independently represents H or F; x3Each independently represent F, CF3Or OCF3。
Specifically, the compound represented by formula VI is selected from one or more of VIA or VIB:
Figure BDA0002355610130000193
wherein R is9、R10Each independently represents C1～C7Straight chain alkyl or C4～C5Linear alkenyl groups of (a). Preferably, R9、R10Each independently represents C1～C5Straight chain alkyl or C4～C5Linear alkenyl groups of (a).
Specifically, the compound represented by the general formula VII is selected from compounds represented by VIIA or VIIB:
Figure BDA0002355610130000194
the compound represented by formula VIII is selected from one or more of VIIIA to VIIIJ:
Figure BDA0002355610130000195
Figure BDA0002355610130000201
wherein R is13Each independently represents C1～C7The linear alkyl group of (1); preferably, R13Each independently represents C1～C5Linear alkyl group of (1).
Preferably, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 6-33% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 28% of a compound represented by the general formula IV;
(5) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 6-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 28% of a compound represented by the general formula IV;
(5) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-15% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 10-30% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 20% of a compound represented by the general formula IV;
(5) 0 to 30% of a compound represented by the general formula V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 10-27% of a compound represented by the general formula I;
(2) 11-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 18% of a compound represented by the general formula IV;
(5) and 0 to 27% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 5-20% of a compound represented by the general formula I;
(2) 6-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 6-19% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 6-16% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 8-16% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 13-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 13-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 8-30% of a compound represented by the general formula I;
(2) 8-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) and 0 to 50% of a compound represented by the general formulae V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 9-27% of a compound represented by the general formula I;
(2) 11-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 45% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-22% of a compound represented by the general formula I;
(2) 6 to 25% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 1-25% of a compound represented by the general formula IV;
(5) 0 to 30% of a compound represented by the general formula V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-19% of a compound represented by the general formula I;
(2) 8-20% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 4-23% of a compound represented by the general formula IV;
(5) and 0 to 27% of a compound represented by the general formula V to VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-22% of a compound represented by the general formula I;
(2) 14-25% of a compound represented by the general formula II;
(3) 40-65% of a compound represented by the general formula III;
(4) and 3-25% of a compound represented by the general formula IV.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-19% of a compound represented by the general formula I;
(2) 16-20% of a compound represented by the general formula II;
(3) 48-60% of a compound represented by the general formula III;
(4) and 4-23% of a compound represented by the general formula IV.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 6-18% of a compound represented by the general formula I;
(2) 6 to 25% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 15% of a compound represented by the general formula IV;
(5) and 1 to 50% of a compound represented by the general formula V to VIII.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 8-15% of a compound represented by the general formula I;
(2) 8-20% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0-13% of a compound represented by the general formula IV;
(5) and 3-45% of compounds represented by general formulas V-VIII.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 13-30% of a compound represented by the general formula II;
(3) 44-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV.
More preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 16-27% of a compound represented by the general formula II;
(3) 48-60% of a compound represented by the general formula III;
(4) and 0-23% of a compound represented by the general formula IV.
Preferably, the liquid crystal compound provided by the invention comprises the following components in percentage by mass:
(1) 13-27% of a compound represented by the general formula I;
(2) 16-27% of a compound represented by the general formula II;
(3) and 52-60% of a compound represented by the general formula III.
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 invention also provides the application of the liquid crystal composition in a liquid crystal display, preferably the application in IPS and FFS mode liquid crystal displays, which can improve the contrast ratio of the 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 ℃);ε∥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 the following examples, the group structures in the liquid crystal compounds are represented by codes shown in Table 1.
Table 1: radical structure code of liquid crystal compound
Figure BDA0002355610130000251
Figure BDA0002355610130000261
Take the following compound structure as an example:
Figure BDA0002355610130000262
expressed as: 4DPGUF
Figure BDA0002355610130000271
Expressed as: 5 CCPAF
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 in the liquid crystal composition and the performance parameters of the liquid crystal composition are shown in the following tables.
Example 1
Table 2: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000272
Example 2
Table 3: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000273
Example 3
Table 4: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000281
Example 4
Table 5: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000282
Example 5
Table 6: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000283
Example 6
Table 7: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000284
Figure BDA0002355610130000291
Example 7
Table 8: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000292
Example 8
Table 9: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000293
Example 9
Table 10: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000294
Figure BDA0002355610130000301
Example 10
Table 11: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000302
Example 11
Table 12: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000303
Example 12
Table 13: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000304
Figure BDA0002355610130000311
Example 13
Table 14: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000312
Example 14
Table 15: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000313
Example 15
Table 16: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000314
Figure BDA0002355610130000321
Example 16
Table 17: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000322
Example 17
Table 18: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000323
Example 18
Table 19: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000324
Figure BDA0002355610130000331
Example 19
Table 20: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000332
Example 20
Table 21: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000333
Example 21
Table 22: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000334
Example 22
Table 23: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000335
Figure BDA0002355610130000341
Example 23
Table 24: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000342
Example 24
Table 25: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000343
Example 25
Table 26: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000344
Example 26
Table 27: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000351
Example 27
Table 28: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000352
Example 28
Table 29: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000353
Example 29
Table 30: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000354
Figure BDA0002355610130000361
Example 30
Table 31: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000362
Example 31
Table 32: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000363
Example 32
Table 33: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000364
Figure BDA0002355610130000371
Example 33
Table 34: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000372
Example 34
Table 35: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000373
Example 35
Table 36: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000374
Figure BDA0002355610130000381
Example 36
Table 37: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000382
Example 37
Table 38: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000383
Example 38
Table 39: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000384
Comparative example 1
Table 40: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002355610130000385
Figure BDA0002355610130000391
The liquid crystal compositions obtained in example 1 and comparative example 1 were compared in summary with respect to the values of the respective performance parameters, see Table 41.
Table 41: comparison of Performance parameters of liquid Crystal compositions
△n △ε Cp γ1 K11 K22 K33 Kavg
Example 1 0.097 +2.6 80 50 14.0 7.0 15.5 12.2
Comparative example 1 0.097 +2.6 80 50 12.8 6.4 14.2 11.1
By comparison, it can be seen that: compared with comparative example 1, the liquid crystal composition provided by example 1 has a larger elastic constant, and compared with comparative example 1, the elastic constant of example 1 is improved by about 10%, namely, the contrast ratio can be increased by about 10% when the liquid crystal composition is used in a liquid crystal display.
As can be seen from the above examples, the liquid crystal composition provided by the present invention has a large elastic constant, and can effectively improve the contrast of the liquid crystal display when used in IPS and FFS mode displays. Therefore, the liquid crystal composition provided by the invention is suitable for an IPS or FFS type TFT liquid crystal display device, can obviously improve the contrast of the liquid crystal display, and can improve the contrast characteristic of the IPS or FFS mode liquid crystal display.
Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that 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 liquid crystal composition with a large elastic constant, which contains a terphenyl structure, characterized by comprising at least one or more compounds represented by the general formula I:
Figure FDA0002355610120000011
wherein R is1、R2Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
the liquid crystal composition at least comprises one or more compounds represented by a general formula II:
Figure FDA0002355610120000012
wherein R is3Represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A1represents:
Figure FDA0002355610120000013
n10 or 1;
X1representative F, CF3Or OCF3；
The liquid crystal composition at least comprises one or more compounds represented by the general formula III:
Figure FDA0002355610120000014
wherein R is4、R5Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A2、A3each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
the liquid crystal composition comprises:
(1) 1-35% of a compound represented by general formula I;
(2) 5-35% of a compound represented by general formula II;
(3) 20-70% of a compound represented by the general formula III.
2. The liquid crystal composition of claim 1, wherein the compound represented by the general formula I is one or more compounds selected from IA to IB:
Figure FDA0002355610120000021
wherein R is1、R2Each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by the general formula I is selected from one or more of the formulas IA 1-IB 45:
Figure FDA0002355610120000022
Figure FDA0002355610120000031
Figure FDA0002355610120000041
Figure FDA0002355610120000051
more preferably, the compound represented by the general formula I is selected from one or more of IA3, IA12, IA21, IA23, IA24, IA25, IA39, IA43, IB3, IB5, IB8, IB10, IB26, IB27, IB30 and IB 31.
3. The liquid crystal composition of claim 1, wherein the compound represented by formula II is selected from one or more of IIA to IIJ:
Figure FDA0002355610120000052
Figure FDA0002355610120000061
wherein R is3Each independently represents C1～C7The linear alkyl group of (1);
preferably, the compound represented by the general formula II is selected from one or more of the following formulas IIA 1-IIJ 5:
Figure FDA0002355610120000062
Figure FDA0002355610120000071
Figure FDA0002355610120000081
more preferably, the compound represented by the general formula II is selected from one or more of IIA2, IIA3, IIB2, IIB3, IIC2, IIC3, IID2, IID3, IID5, IIE3, IIF3, IIG3 and IIG 4.
4. The liquid crystal composition of claim 1, wherein the compound represented by formula III is selected from one or more of formulae IIIA to IIIC:
Figure FDA0002355610120000082
wherein R is4Represents C1～C7The linear alkyl group of (1);
R5represents C1～C7Linear alkyl, linear alkoxy or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by the general formula III is selected from one or more of formulas IIIA1 to IIIC 24:
Figure FDA0002355610120000083
Figure FDA0002355610120000091
Figure FDA0002355610120000101
Figure FDA0002355610120000111
more preferably, the compound represented by the general formula III is selected from one or more of IIIA3, IIIA7, IIIA11, IIIA12, IIIA25, IIIA29, IIIA31, IIIA37, IIIB18, IIIB22, IIIC2, IIIC4, IIIC15 and IIIC 20.
5. The liquid crystal composition of claim 1, further comprising one or more compounds represented by formula IV:
Figure FDA0002355610120000112
wherein R is6、R7Each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A4represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
the liquid crystal composition further comprises one or more compounds represented by the general formula V:
Figure FDA0002355610120000113
wherein R is8Represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
X2representative F, CF3Or OCF3；
L1、L2Each independently represents H or F;
A5represents:
Figure FDA0002355610120000114
the liquid crystal composition comprises the following components in percentage by mass:
(1) 1-35% of a compound represented by the general formula I;
(2) 5-35% of a compound represented by the general formula II;
(3) 20-70% of a compound represented by the general formula III;
(4) 0 to 35% of a compound represented by the general formula IV;
(5) 0 to 55% of a compound represented by the general formula V.
6. The liquid crystal composition of claim 5, wherein the compound represented by formula IV is selected from one or more of IVA-IVB:
Figure FDA0002355610120000121
wherein R is6、R7Each independently represents C1～C7Linear alkyl, linear alkoxy or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by the general formula IV is selected from one or more of IVA 1-IVB 62:
Figure FDA0002355610120000122
Figure FDA0002355610120000131
Figure FDA0002355610120000141
Figure FDA0002355610120000151
Figure FDA0002355610120000161
more preferably, the compound of formula IV is selected from one or more of IVA3, IVA5, IVA8, IVA10, IVA26, IVA31, IVA33, IVA53, IVB3, IVB5, IVB8, IVB10, IVB13, IVB25, IVB30, IVB 35.
7. The liquid crystal composition according to claim 5, wherein the compound represented by the general formula V is one or more compounds selected from the group consisting of VA to VF:
Figure FDA0002355610120000162
wherein R is8Each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); preferably, R8Each independently represents C1～C5Straight chain alkyl or C2～C5A linear alkenyl group of (a);
X2each independently represent F, CF3Or OCF3。
8. The liquid crystal composition of any one of claims 1 to 7, further comprising one or more compounds represented by formula VI:
Figure FDA0002355610120000171
wherein R is9、R10Each independently represent F, C1～C12Straight chain alkyl or C2～C12A linear alkenyl group of (a);
the liquid crystal composition further comprises a compound represented by formula VII or formula VIII:
Figure FDA0002355610120000172
wherein R is11、R12、R13Each independently represents C1～C12The linear alkyl group of (1); l is3、L4、L5Each independently represents H or F; x3Each independently represent F, CF3Or OCF3。
9. The liquid crystal composition according to claim 8, wherein the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 6-33% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 28% of a compound represented by the general formula IV;
(5) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal composition comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-15% of a compound represented by the general formula I;
(2) 6-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 28% of a compound represented by the general formula IV;
(5) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-15% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 10-30% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 20% of a compound represented by the general formula IV;
(5) 0 to 30% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 10-27% of a compound represented by the general formula I;
(2) 11-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 18% of a compound represented by the general formula IV;
(5) 0 to 27% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 5-20% of a compound represented by the general formula I;
(2) 6-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 6-19% of a compound represented by the general formula I;
(2) 8-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 6-16% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 8-16% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 13-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
(5) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 13-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
(5) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 8-30% of a compound represented by the general formula I;
(2) 8-30% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 9-27% of a compound represented by the general formula I;
(2) 11-27% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0 to 45% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-22% of a compound represented by the general formula I;
(2) 6 to 25% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 1-25% of a compound represented by the general formula IV;
(5) 0 to 30% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-19% of a compound represented by the general formula I;
(2) 8-20% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 4-23% of a compound represented by the general formula IV;
(5) 0 to 27% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-22% of a compound represented by the general formula I;
(2) 14-25% of a compound represented by the general formula II;
(3) 40-65% of a compound represented by the general formula III;
(4) 3-25% of a compound represented by the general formula IV;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-19% of a compound represented by the general formula I;
(2) 16-20% of a compound represented by the general formula II;
(3) 48-60% of a compound represented by the general formula III;
(4) 4-23% of a compound represented by the general formula IV;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 6-18% of a compound represented by the general formula I;
(2) 6 to 25% of a compound represented by the general formula II;
(3) 30-65% of a compound represented by the general formula III;
(4) 0 to 15% of a compound represented by the general formula IV;
(5) 1 to 50% of a compound represented by the general formula V to VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 8-15% of a compound represented by the general formula I;
(2) 8-20% of a compound represented by the general formula II;
(3) 33-60% of a compound represented by the general formula III;
(4) 0-13% of a compound represented by the general formula IV;
(5) 3-45% of a compound represented by general formulas V-VIII;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 3-30% of a compound represented by the general formula I;
(2) 13-30% of a compound represented by the general formula II;
(3) 44-65% of a compound represented by the general formula III;
(4) 0 to 25% of a compound represented by the general formula IV;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 4-27% of a compound represented by the general formula I;
(2) 16-27% of a compound represented by the general formula II;
(3) 48-60% of a compound represented by the general formula III;
(4) 0 to 23% of a compound represented by the general formula IV;
or, the liquid crystal compound comprises the following components in percentage by mass:
(1) 13-27% of a compound represented by the general formula I;
(2) 16-27% of a compound represented by the general formula II;
(3) and 52-60% of a compound represented by the general formula III.
10. Use of a liquid crystal composition according to any of claims 1 to 9 in liquid crystal displays, preferably in IPS and FFS mode liquid crystal displays.
CN202010007002.9A 2020-01-03 2020-01-03 Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof Pending CN113072959A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202010007002.9A CN113072959A (en) 2020-01-03 2020-01-03 Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof
PCT/CN2020/077009 WO2021134881A1 (en) 2020-01-03 2020-02-27 Terphenyl structure-containing liquid crystal composition having large elastic constant and application thereof
TW109122127A TW202126787A (en) 2020-01-03 2020-06-30 Terphenyl structure-containing liquid crystal composition having large elastic constant and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010007002.9A CN113072959A (en) 2020-01-03 2020-01-03 Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof

Publications (1)

Publication Number Publication Date
CN113072959A true CN113072959A (en) 2021-07-06

Family

ID=76608732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010007002.9A Pending CN113072959A (en) 2020-01-03 2020-01-03 Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof

Country Status (3)

Country Link
CN (1) CN113072959A (en)
TW (1) TW202126787A (en)
WO (1) WO2021134881A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113512429A (en) * 2020-04-09 2021-10-19 默克专利股份有限公司 Liquid-crystalline medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106479513A (en) * 2015-08-05 2017-03-08 默克专利股份有限公司 Liquid crystal media
CN107868667A (en) * 2016-09-23 2018-04-03 默克专利股份有限公司 Liquid crystal media and the liquid crystal display for including it
WO2018193859A1 (en) * 2017-04-17 2018-10-25 Dic株式会社 Liquid crystal display device
CN109207161A (en) * 2017-06-30 2019-01-15 默克专利股份有限公司 Liquid crystal media and liquid crystal display comprising it
WO2019048444A1 (en) * 2017-09-08 2019-03-14 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same
WO2019076899A1 (en) * 2017-10-18 2019-04-25 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same
CN109880637A (en) * 2019-03-29 2019-06-14 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

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422951A (en) * 1981-04-02 1983-12-27 Chisso Corporation Liquid crystal benzene derivatives
US5064565A (en) * 1989-07-26 1991-11-12 Chisso Corporation Cyclohexenylethane compound

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106479513A (en) * 2015-08-05 2017-03-08 默克专利股份有限公司 Liquid crystal media
CN107868667A (en) * 2016-09-23 2018-04-03 默克专利股份有限公司 Liquid crystal media and the liquid crystal display for including it
WO2018193859A1 (en) * 2017-04-17 2018-10-25 Dic株式会社 Liquid crystal display device
CN109207161A (en) * 2017-06-30 2019-01-15 默克专利股份有限公司 Liquid crystal media and liquid crystal display comprising it
WO2019048444A1 (en) * 2017-09-08 2019-03-14 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same
WO2019076899A1 (en) * 2017-10-18 2019-04-25 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same
CN109880637A (en) * 2019-03-29 2019-06-14 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113512429A (en) * 2020-04-09 2021-10-19 默克专利股份有限公司 Liquid-crystalline medium
US12043781B2 (en) 2020-04-09 2024-07-23 Merck Patent Gmbh Liquid-crystalline medium

Also Published As

Publication number Publication date
TW202126787A (en) 2021-07-16
WO2021134881A1 (en) 2021-07-08

Similar Documents

Publication Publication Date Title
CN109913239B (en) Positive and negative mixed liquid crystal composition and application thereof
CN105670649B (en) A kind of liquid-crystal composition and its application with high transmittance
CN113072957A (en) Positive liquid crystal composition with high contrast
CN108624332B (en) Negative dielectric liquid crystal composition and application thereof
CN109423301B (en) Negative dielectric anisotropy liquid crystal composition and application thereof
CN109913236B (en) High-transmittance liquid crystal composition containing dioxygen heterocyclic compound and application thereof
CN115477950B (en) Negative dielectric anisotropy liquid crystal composition and application thereof
CN112175629B (en) Terphenyl-containing fast response liquid crystal composition and application thereof
TW202126788A (en) Negative liquid crystal composition with high contrast and application thereof
CN113072956B (en) High-contrast negative liquid crystal composition containing phenprobucol and application thereof
CN113072961B (en) Liquid crystal composition containing methoxy bridge bond negative liquid crystal compound and application thereof
CN113072955B (en) Liquid crystal composition containing methoxy bridge negative liquid crystal compound and having large elastic constant and application thereof
CN114525140A (en) Fast response negative liquid crystal composition and application thereof
CN114437735B (en) Liquid crystal composition containing pyran and terphenyl and application thereof
CN113072953A (en) Negative liquid crystal composition with large elastic constant and application thereof
CN113072960A (en) Liquid crystal composition containing 2-methyl-3, 4, 5 trifluorobenzene structure and application thereof
CN113072959A (en) Liquid crystal composition with high elastic constant and containing terphenyl structure and application thereof
CN112111283B (en) Liquid crystal composition with quick response and application thereof
CN114806599A (en) Negative liquid crystal composition with large elastic constant and application thereof
CN109913237A (en) A kind of high transmittance liquid-crystal composition and its application
CN114395404B (en) Negative liquid crystal composition and application thereof
CN112111284B (en) Pyran-containing liquid crystal composition and application thereof
CN112111285B (en) Liquid crystal composition with cycloalkyl at tail end and application thereof
CN111944540A (en) Acetylene negative monocrystal-containing liquid crystal composition and application thereof
CN117917459B (en) Liquid crystal composition containing dibenzothiophene compound and application thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20210706

RJ01 Rejection of invention patent application after publication