CN111944541A - Negative liquid crystal composition with quick response time and application thereof - Google Patents

Negative liquid crystal composition with quick response time and application thereof Download PDF

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Publication number
CN111944541A
CN111944541A CN201910406091.1A CN201910406091A CN111944541A CN 111944541 A CN111944541 A CN 111944541A CN 201910406091 A CN201910406091 A CN 201910406091A CN 111944541 A CN111944541 A CN 111944541A
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general formula
compounds represented
liquid crystal
crystal composition
iii
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陈卯先
朱波
储士红
未欣
姜天孟
陈海光
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Beijing Bayi Space LCD Technology Co Ltd
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Beijing Bayi Space LCD Technology Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods

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  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
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Abstract

The invention relates to the technical field of liquid crystal materials, in particular to a negative liquid crystal composition with quick response time and application thereof. The liquid crystal composition comprises at least one compound represented by a general formula I, at least one compound represented by a general formula II and at least one compound represented by a general formula III;

Description

Negative liquid crystal composition with quick response time and application thereof
Technical Field
The invention relates to the technical field of liquid crystal materials, in particular to a negative liquid crystal composition with quick response time and application thereof.
Background
Along with the improvement of the requirement of people on the display effect, the requirements of curved surface display, high transmittance, high contrast ratio and the like are more and more favored by more consumers, the requirements of curved surface display, high transmittance and high contrast ratio can be realized by relying on the PSVA technology, the liquid crystal display is suitable for large-size panel requirements, the negative liquid crystal is used in the FFS mode, the transmittance and the hard screen of the liquid crystal display can be improved, the backlight power consumption is reduced, the endurance time is prolonged, and the liquid crystal display is suitable for mobile display equipment such as mobile phones and flat panels.
Negative liquid crystals, which were proposed at the beginning of the 80's last century, are mainly used in VA mode, and have major advantages in high contrast and major disadvantages in small viewing angle and slow response time. With the development of display technology, MVA, PVA, PSVA, and the like technologies have appeared in succession, solving the problems of response time and viewing angle. In recent years, as touch panels become mainstream in the market of mobile devices, IPS and FFS type hard-screen displays have inherent advantages, and both IPS and FFS type displays can use positive liquid crystals and negative liquid crystals, and the positive liquid crystals are aligned along the direction of electric field lines due to the bending electric field existing in the displays, thereby causing bending of molecules and lowering of transmittance; the negative liquid crystal is arranged perpendicular to the direction of the electric field lines, so that the transmittance is greatly improved, and the method is the best method for improving the transmittance and reducing the backlight power consumption at present. However, the response time problem of negative liquid crystals is a significant problem that is currently encountered, and FFS displays using negative liquid crystals have a response time that is 50% or more slower than FFS displays using positive liquid crystals. Therefore, how to increase the response time of the negative liquid crystal is a key issue at present.
Disclosure of Invention
The present invention provides a liquid crystal composition having a low rotational viscosity, which can effectively reduce the response time of a liquid crystal display. The liquid crystal composition provided by the invention contains an acetylene negative dielectric liquid crystal compound, is a nematic liquid crystal composition and has negative dielectric anisotropy.
Specifically, the invention provides a liquid crystal composition, which comprises at least one compound represented by a general formula I:
Figure BDA0002061269670000011
R1、R2each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12Linear alkenyl of, L1、L2Each independently represents H or F; n is1Represents 0 or 1.
And comprising at least one compound represented by the general formula II:
Figure BDA0002061269670000012
R3、R4each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a); a. the1、A2Each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene; n is2Represents 0 or 1.
And comprising at least one compound represented by the general formula III:
Figure BDA0002061269670000013
R5、R6each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a); n is2Represents 0 or 1.
The compound represented by the general formula I provided by the invention is an alkyne negative dielectric liquid crystal compound, and the structure has larger negative dielectric anisotropy and large optical anisotropy.
Specifically, the compound represented by the general formula I is selected from one or more compounds represented by the following formulas IA to ID:
Figure BDA0002061269670000021
wherein R is1Each independently represents C1～C7Linear alkyl or linear alkoxy of (a); r2Each independently represents C1～C7Linear alkyl or alkoxy groups of (a).
Preferably, the compound represented by the general formula I is selected from one or more of the formulas IA 1-ID 24:
Figure BDA0002061269670000022
Figure BDA0002061269670000031
Figure BDA0002061269670000041
Figure BDA0002061269670000051
Figure BDA0002061269670000061
more preferably, the compound represented by the general formula I is selected from one or more of IA13, IA14, IA15, IA16, IA22, IB13, IB14, IB16, IC13, IC14, ID13 and ID 14; particularly preferably, the compound represented by the general formula I is selected from one or more of IA13, IA14, IB14, IC13, IC14, ID13 and ID 14.
The compound represented by the general formula II provided by the invention is of a bicyclic structure, and specifically, the compound represented by the general formula II is selected from one or more of the following compounds:
Figure BDA0002061269670000062
wherein R is3Each independently represents C1～C7The linear alkyl group of (1); r4Each independently represents C1～C7Linear alkyl, linear alkoxy or C2～C7Linear alkenyl groups of (a).
Preferably, the compound represented by the general formula II is one or more compounds selected from the group consisting of compounds represented by formula IIA1 to formula IIC 24:
Figure BDA0002061269670000063
Figure BDA0002061269670000071
Figure BDA0002061269670000081
more preferably, the compound provided by the general formula II is selected from one or more of IIA1, IIA2, IIA4, IIA9, IIA18, IIA22, IIA23, IIB18, IIB22, IIC2, IIC4, IIC15 and IIC 16; particularly preferably, the compounds provided by formula II are selected from one or more of IIA1, IIA2, IIA4, IIA9, IIC4, IIC 15.
The compound of the general formula III provided by the invention is a compound containing a methoxy bridge bond, and the compound has large dielectric anisotropy.
Preferably, the compound represented by formula III is selected from one or more of formulae IIIA or IIIB:
Figure BDA0002061269670000082
R5each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r6Each independently represents C1～C7Linear alkyl or linear alkoxy groups of (1).
Preferably, the compound represented by the general formula III is selected from one or more of formulas IIIA1 to IIIB 28:
Figure BDA0002061269670000083
Figure BDA0002061269670000091
Figure BDA0002061269670000101
preferably, the compound represented by the general formula III provided by the present invention is selected from one or more of IIIA6, IIIA9, IIIA11, IIIA12, IIIA14, IIIA15, IIIA27, IIIB11, IIIB12, IIIB14, IIIB15, IIIB24, and IIIB 27.
The liquid crystal composition provided by the invention also comprises one or more compounds selected from the group consisting of compounds with the structure of the general formula IV:
Figure BDA0002061269670000102
R7、R8each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
A3each independently selected from the following structures:
Figure BDA0002061269670000111
preferably, the compound represented by formula IV is selected from one or more of formulae IVA to IVC:
Figure BDA0002061269670000112
wherein R is7Each independently represents C2～C10A linear alkyl or linear alkenyl group of (a); r8Each independently represents C1～C8Linear alkyl group of (1).
More preferably, the compound represented by formula IV is selected from one or more of the structures of formulae IVA1 to IVC 30:
Figure BDA0002061269670000113
Figure BDA0002061269670000121
Figure BDA0002061269670000131
more preferably, the compound represented by formula IV is selected from one or more of IVA1, IVA3, IVA14, IVA18, IVA22, IVB3, IVB12, IVB16, IVB18, most preferably, the compound represented by formula IV is selected from one or more of IVA1, IVA14, IVB12, IVB 16.
The liquid crystal composition provided by the invention also comprises one or more compounds selected from compounds represented by the general formula V:
Figure BDA0002061269670000132
in the general formula V, R9、R10Each of which isIndependently represent C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a); n is3Each independently represents 0 or 1; z1Represents CH2CH2Or a single bond.
The compound of the general formula V provided by the invention has large dielectric anisotropy.
Preferably, the compound represented by formula V is selected from one or more of formulae VA to VD:
Figure BDA0002061269670000133
R9each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r10Each independently represents C1～C7Linear alkyl or linear alkoxy groups of (1).
More preferably, the compound represented by the general formula V provided by the invention is one or more compounds selected from the compounds represented by the following formulas VA 1-VD 20:
Figure BDA0002061269670000141
Figure BDA0002061269670000151
Figure BDA0002061269670000161
Figure BDA0002061269670000171
more preferably, the compound represented by the general formula V provided by the invention is selected from one or more of VA12, VA14, VA15, VA24, VA27, VB1, VB2, VB8, VB11, VB13, VB14, VB15, VB16, VB17, VB20, VB23, VB26 and VB 29; particularly preferably, the compound represented by the general formula V is selected from one or more of VA12, VA14, VA24, VB11, VB13, VB14, VB15, VB16, and VB 20.
Specifically, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 1-35% of one or more compounds represented by the general formula (I);
2) 20-65% of one or more compounds represented by the general formula (II);
3) 5-60% of one or more compounds represented by the general formula (III);
4) 0 to 25% of one or more compounds represented by the general formula (IV);
5) 0 to 35% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-44% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V). .
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-39% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-16% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-16% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 46-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 46-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-46% of one or more compounds represented by the general formula (II);
3) 15-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-20% of one or more compounds represented by the general formula (I);
2) 37-46% of one or more compounds represented by the general formula (II);
3) 18 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-38% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-38% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-55% of one or more compounds represented by the general formula (II);
3) 36 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 10% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-50% of one or more compounds represented by the general formula (II);
3) 36 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0-6% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 15-50% of one or more compounds represented by the general formula (III);
5) 0 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 17-46% of one or more compounds represented by the general formula (III);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 8 to 43 percent of one or more compounds represented by a general formula (III);
4) 1-15% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-20% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-39% of one or more compounds represented by the general formula (III);
4) 1-11% of one or more compounds represented by the general formula (IV);
5) 0-16% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 8 to 43 percent of one or more compounds represented by a general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 1 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-37% of one or more compounds represented by the general formula (III);
4) 0-8% of one or more compounds represented by the general formula (IV);
5) 6 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 15 to 43% of one or more compounds represented by the general formula (III);
4) 1 to 25% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 17 to 37% of one or more compounds represented by the general formula (III);
4) 6 to 20% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 10-23% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-30% of one or more compounds represented by the general formula (III);
4) 1-10% of one or more compounds represented by the general formula (IV);
5) and 5-20% of one or more compounds represented by the general formula (V).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-26% of one or more compounds represented by the general formula (III);
4) 2-8% of one or more compounds represented by the general formula (IV);
5) 10-16% of one or more compounds represented by the general formula (V).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 44% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 39% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-16% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-16% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 46-60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 46-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-46% of one or more compounds represented by the general formula (II);
3) 27 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-46% of one or more compounds represented by the general formula (II);
3) 32-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 38% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22-38% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-55% of one or more compounds represented by the general formula (II);
3) 36 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-50% of one or more compounds represented by the general formula (II);
3) 36 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 25 to 50% of one or more compounds represented by the general formula (III).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 28-46% of one or more compounds represented by the general formula (III).
Or preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 18 to 43% of one or more compounds represented by the general formula (III);
4) and 1-15% of one or more compounds represented by the general formula (IV).
Or more preferably, the liquid crystal composition provided by the invention comprises the following components in percentage by weight:
1) 13-19% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 39% of one or more compounds represented by the general formula (III);
4) 1-11% of one or more compounds represented by the general formula (IV).
Further, the sum of the total mass percentages of the components in the liquid crystal composition is 100%.
The invention also includes the application of the liquid crystal composition in a liquid crystal display device, preferably in a fast response liquid crystal display device, more preferably in a VA liquid crystal display device and an IPS and FFS mode liquid crystal display device; the VA-type liquid crystal display device is preferably VA/MVA/PVA/PSVA.
The compound represented by the general formula I in the liquid crystal composition provided by the invention is an acetylene negative monomer, has larger negative dielectric anisotropy and very large optical anisotropy, and can effectively increase the optical anisotropy of the liquid crystal composition; the compound represented by the general formula II is a two-ring structure, has extremely low rotational viscosity and is used as the optimal choice for reducing the rotational viscosity of the liquid crystal composition; the liquid crystal compound represented by the general formula III has large negative dielectric anisotropy, and can effectively improve the negative dielectric anisotropy of the liquid crystal composition; the liquid crystal composition provided by the invention increases optical anisotropy by adding the compound of the general formula I, and increases dielectric anisotropy by adding the compound of the general formula III, so that the use of polar monomers is reduced, the use of the compound of the general formula II is increased, and the aim of reducing the rotational viscosity of the liquid crystal composition is fulfilled. In particular, the addition of the compound of the formula V can increase the dielectric anisotropy and increase the mutual solubility of the liquid crystal composition, reduce the driving voltage of the liquid crystal composition and widen the working temperature range of the liquid crystal.
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 rotational viscosity, large elastic constant, good low-temperature intersolubility and high response speed, can be used for fast response liquid crystal display of various display modes, can obviously improve the display effect of a liquid crystal display when being used in a VA/MVA/PVA/PSVA, IPS or FFS mode display, and can effectively reduce the response time 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 ℃); Δ represents the dielectric anisotropy (25 ℃, 1000 Hz); v10Represents a threshold voltage, which is a characteristic voltage (V, 25 ℃) at which the relative transmittance changes by 10%; 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 and comparative 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 BDA0002061269670000241
Figure BDA0002061269670000251
Take the following compound structure as an example:
Figure BDA0002061269670000252
expressed as: 3CPTWO2
Figure BDA0002061269670000253
Expressed as: 3CC1OWO2
In the following examples and comparative 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 BDA0002061269670000254
Example 2
Table 3: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000255
Example 3
Table 4: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000256
Figure BDA0002061269670000261
Example 4
Table 5: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000262
Example 5
Table 6: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000263
Example 6
Table 7: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000264
Example 7
Table 8: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000265
Figure BDA0002061269670000271
Example 8
Table 9: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000272
Example 9
Table 10: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000273
Example 10
Table 11: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000274
Example 11
Table 12: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000281
Example 12
Table 13: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000282
Example 13
Table 14: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000283
Example 14
Table 15: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000284
Figure BDA0002061269670000291
Example 15
Table 16: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000292
Example 16
Table 17: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000293
Example 17
Table 18: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000294
Example 18
Table 19: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000295
Figure BDA0002061269670000301
Example 19
Table 20: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000302
Example 20
Table 21: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000303
Example 21
Table 22: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000304
Example 22
Table 23: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000305
Figure BDA0002061269670000311
Example 23
Table 24: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000312
Example 24
Table 25: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000313
Example 25
Table 26: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000314
Figure BDA0002061269670000321
Example 26
Table 27: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000322
Example 27
Table 28: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000323
Example 28
Table 29: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000324
Example 29
Table 30: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000325
Figure BDA0002061269670000331
Example 30
Table 31: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000332
Example 31
Table 32: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000333
Example 32
Table 33: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000334
Example 33
Table 34: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000335
Figure BDA0002061269670000341
Example 34
Table 35: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000342
Example 35
Table 36: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000343
Example 36
Table 37: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000344
Example 37
Table 38: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000351
Example 38
Table 39: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000352
Example 39
Table 40: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000353
Example 40
Table 41: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000354
Figure BDA0002061269670000361
EXAMPLE 41
Table 42: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000362
Example 42
Table 43: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000363
Example 43
Table 44: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000364
Comparative example 1
Table 45: the weight percentage and performance parameters of each component in the liquid crystal composition
Figure BDA0002061269670000365
Figure BDA0002061269670000371
The values of the various performance parameters of the liquid crystal compositions obtained in example 3 and comparative example 1 were compared together, see table 46.
Table 46: comparison of Performance parameters of liquid Crystal compositions
△n △ε Cp γ1 K11 K22 K33
Example 3 0.108 -3.8 75 76 13.3 6.6 15.3
Comparative example 1 0.107 -3.8 77 94 13.4 6.7 14.4
By comparison, it can be seen that: example 3 provides a liquid crystal composition having a low rotational viscosity, i.e., having a faster response time, compared to comparative example 1.
From the above embodiments, the liquid crystal composition provided by the present invention has low viscosity, high resistivity, suitable optical anisotropy, and good low temperature intersolubility, and can reduce the response time of the liquid crystal display, thereby solving the problem of slow response speed of the liquid crystal display. Therefore, the liquid crystal composition provided by the invention is suitable for fast-response IPS and FFS and VA-mode liquid crystal display devices such as MVA, PVA and PSVA, and is particularly suitable for fast-response IPS and FFS-mode liquid crystal display devices.
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 or improvements may 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 (9)

1. A liquid crystal composition, comprising:
at least one compound represented by the general formula I;
at least one compound represented by the general formula II; and the number of the first and second groups,
at least one compound represented by the general formula III;
Figure FDA0002061269660000011
R1、R2、R3、R4、R5、R6each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a);
L1、L2each independently represents H or F;
A1、A2each independently represents trans-1, 4-cyclohexyl or 1, 4-phenylene;
n1、n2each independently represents 0 or 1.
2. The liquid crystal composition of claim 1, wherein the compound represented by the general formula I is one or more compounds selected from the group consisting of compounds represented by the following formulas IA to ID:
Figure FDA0002061269660000012
wherein R is1Each independently represents C1～C7Linear alkyl or linear alkoxy of (a); r2Each independently represents C1～C7Linear alkyl or alkoxy groups of (a);
preferably, the compound represented by the general formula I is selected from one or more of the formulas IA 1-ID 24:
Figure FDA0002061269660000013
Figure FDA0002061269660000021
Figure FDA0002061269660000031
Figure FDA0002061269660000041
Figure FDA0002061269660000051
more preferably, the compound represented by the general formula I is selected from one or more of IA13, IA14, IA15, IA16, IA22, IB13, IB14, IB16, IC13, IC14, ID13 and ID 14; particularly preferably, the compound represented by the general formula I is selected from one or more of IA13, IA14, IB14, IC13, IC14, ID13 and ID 14.
3. The liquid crystal composition according to claim 1 or 2, wherein the compound represented by the general formula II is selected from one or more of the following compounds:
Figure FDA0002061269660000052
wherein R is3Each independently represents C1～C7The linear alkyl group of (1); r4Each independently represents C1～C7Linear alkyl, linear alkoxy or C2～C7A linear alkenyl group of (a);
preferably, the compound represented by the general formula II is selected from one or more compounds represented by the formulas IIA 1-IIC 24:
Figure FDA0002061269660000053
Figure FDA0002061269660000061
Figure FDA0002061269660000071
Figure FDA0002061269660000081
more preferably, the compound provided by the general formula II is selected from one or more of IIA1, IIA2, IIA4, IIA9, IIA18, IIA22, IIA23, IIB18, IIB22, IIC2, IIC4, IIC15 and IIC 16; particularly preferably, the compound provided by the general formula II is selected from one or more of IIA1, IIA2, IIA4, IIA9, IIC4 and IIC 15.
4. The liquid crystal composition of any one of claims 1 to 3, wherein the compound represented by formula III is selected from one or more of formulae IIIA or IIIB:
Figure FDA0002061269660000082
R5each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r6Each independently represents C1～C7Linear alkyl or linear alkoxy of (a);
preferably, the compound represented by the general formula III is selected from one or more compounds represented by the following formulas IIIA 1-IIIB 28:
Figure FDA0002061269660000083
Figure FDA0002061269660000091
Figure FDA0002061269660000101
preferably, the compound represented by the general formula III is selected from one or more of IIIA6, IIIA9, IIIA11, IIIA12, IIIA14, IIIA15, IIIA27, IIIB11, IIIB12, IIIB14, IIIB15, IIIB24 and IIIB 27.
5. The liquid crystal composition of any of claims 1-4, further comprising one or more compounds selected from the group consisting of structures of formula IV:
Figure FDA0002061269660000102
R7、R8each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a); a. the3Each independently selected from the following structures:
Figure FDA0002061269660000103
preferably, the compound represented by formula IV is selected from one or more of formulae IVA to IVC:
Figure FDA0002061269660000104
wherein R is7Each independently represents C2～C10Straight chain alkyl ofA linear alkenyl group; r8Each independently represents C1～C8The linear alkyl group of (1);
more preferably, the compound represented by the general formula IV is selected from one or more structures of formula IVA1 to formula IVC 30:
Figure FDA0002061269660000105
Figure FDA0002061269660000111
Figure FDA0002061269660000121
more preferably, the compound represented by the general formula IV is selected from one or more of IVA1, IVA3, IVA14, IVA18, IVA22, IVB3, IVB12, IVB16 and IVB18, and most preferably, the compound represented by the general formula IV is selected from one or more of IVA1, IVA14, IVB12 and IVB 16.
6. The liquid crystal composition according to any one of claims 1 to 5, further comprising one or more compounds selected from the group consisting of compounds represented by the general formula V:
Figure FDA0002061269660000122
R9、R10each independently represents C1～C12Linear alkyl, linear alkoxy or C2～C12A linear alkenyl group of (a); n is3Each independently represents 0 or 1; z1Represents CH2CH2Or a single bond;
preferably, the compound represented by formula V is selected from one or more of formulae VA to VD:
Figure FDA0002061269660000131
R9each independently represents C1～C7Straight chain alkyl or C2～C7A linear alkenyl group of (a); r10Each independently represents C1～C7Linear alkyl or linear alkoxy of (a);
further preferably, the compound represented by the general formula V is selected from one or more compounds represented by the following formulas VA1 to VD 20:
Figure FDA0002061269660000132
Figure FDA0002061269660000141
Figure FDA0002061269660000151
Figure FDA0002061269660000161
more preferably, the compound represented by the general formula V is selected from one or more of VA12, VA14, VA15, VA24, VA27, VB1, VB2, VB8, VB11, VB13, VB14, VB15, VB16, VB17, VB20, VB23, VB26 and VB 29; particularly preferably, the compound represented by the general formula V is selected from one or more of VA12, VA14, VA24, VB11, VB13, VB14, VB15, VB16 and VB 20.
7. The liquid crystal composition according to any one of claims 1 to 6, comprising the following components in percentage by weight:
1) 1-35% of one or more compounds represented by the general formula (I);
2) 20-65% of one or more compounds represented by the general formula (II);
3) 5-60% of one or more compounds represented by the general formula (III);
4) 0 to 25% of one or more compounds represented by the general formula (IV);
5) 0 to 35% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-44% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V); .
Or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-39% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-16% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-16% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 46-60% of one or more compounds represented by the general formula (II);
3) 8-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V); or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 46-55% of one or more compounds represented by the general formula (II);
3) 10-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-46% of one or more compounds represented by the general formula (II);
3) 15-50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-20% of one or more compounds represented by the general formula (I);
2) 37-46% of one or more compounds represented by the general formula (II);
3) 18 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-38% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-38% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-55% of one or more compounds represented by the general formula (II);
3) 36 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 0 to 10% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-50% of one or more compounds represented by the general formula (II);
3) 36 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
5) 0 to 6% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 15-50% of one or more compounds represented by the general formula (III);
5) 0 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 17-46% of one or more compounds represented by the general formula (III);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 8 to 43 percent of one or more compounds represented by a general formula (III);
4) 1-15% of one or more compounds represented by the general formula (IV);
5) 0 to 20% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-20% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-39% of one or more compounds represented by the general formula (III);
4) 1-11% of one or more compounds represented by the general formula (IV);
5) 0 to 16% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 8 to 43 percent of one or more compounds represented by a general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
5) 1 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-37% of one or more compounds represented by the general formula (III);
4) 0-8% of one or more compounds represented by the general formula (IV);
5) 6 to 20 percent of one or more compounds represented by a general formula (V); or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 15 to 43% of one or more compounds represented by the general formula (III);
4) 1 to 25% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 17 to 37% of one or more compounds represented by the general formula (III);
4) 6 to 20 percent of one or more compounds represented by a general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 10-23% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 8-30% of one or more compounds represented by the general formula (III);
4) 1-10% of one or more compounds represented by the general formula (IV);
5) 5-20% of one or more compounds represented by the general formula (V);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 10-26% of one or more compounds represented by the general formula (III);
4) 2-8% of one or more compounds represented by the general formula (IV);
5) 10-16% of one or more compounds represented by the general formula (V);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 44% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 39% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-16% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-16% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 46-60% of one or more compounds represented by the general formula (II);
3) 18 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 46-55% of one or more compounds represented by the general formula (II);
3) 22 to 46 percent of one or more compounds represented by a general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-46% of one or more compounds represented by the general formula (II);
3) 27 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-46% of one or more compounds represented by the general formula (II);
3) 32-46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-25% of one or more compounds represented by the general formula (I);
2) 32-60% of one or more compounds represented by the general formula (II);
3) 18 to 38% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-21% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22-38% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-23% of one or more compounds represented by the general formula (I);
2) 32-55% of one or more compounds represented by the general formula (II);
3) 36 to 50% of one or more compounds represented by the general formula (III);
4) 0-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-19% of one or more compounds represented by the general formula (I);
2) 37-50% of one or more compounds represented by the general formula (II);
3) 36 to 46% of one or more compounds represented by the general formula (III);
4) 0-11% of one or more compounds represented by the general formula (IV);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 5-25% of one or more compounds represented by the general formula (I);
2) 38-55% of one or more compounds represented by the general formula (II);
3) 25 to 50% of one or more compounds represented by the general formula (III);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-21% of one or more compounds represented by the general formula (I);
2) 42-51% of one or more compounds represented by the general formula (II);
3) 28-46% of one or more compounds represented by the general formula (III);
or preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 8-23% of one or more compounds represented by the general formula (I);
2) 31 to 60% of one or more compounds represented by the general formula (II);
3) 18 to 43% of one or more compounds represented by the general formula (III);
4) 1-15% of one or more compounds represented by the general formula (IV);
or more preferably, the liquid crystal composition comprises the following components in percentage by weight:
1) 13-19% of one or more compounds represented by the general formula (I);
2) 37-55% of one or more compounds represented by the general formula (II);
3) 22 to 39% of one or more compounds represented by the general formula (III);
4) 1-11% of one or more compounds represented by the general formula (IV).
8. The liquid crystal composition according to claim 7, wherein the sum of the total mass percentages of the components in the liquid crystal composition is 100%.
9. Use of the liquid crystal composition of any one of claims 1 to 8 in a liquid crystal display device, preferably in a fast response liquid crystal display device, more preferably in a VA-type liquid crystal display device and IPS, FFS-mode liquid crystal display device; the VA-type liquid crystal display device is preferably VA/MVA/PVA/PSVA.
CN201910406091.1A 2019-05-16 2019-05-16 Negative liquid crystal composition with quick response time and application thereof Pending CN111944541A (en)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
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CN108517218A (en) * 2018-07-03 2018-09-11 晶美晟光电材料（南京）有限公司 A kind of liquid-crystal composition and its application with high-k
CN108624332A (en) * 2017-03-16 2018-10-09 北京八亿时空液晶科技股份有限公司 A kind of negative dielectric liquid crystal composition and its application
WO2019076899A1 (en) * 2017-10-18 2019-04-25 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same

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CN107619668A (en) * 2016-07-15 2018-01-23 北京八亿时空液晶科技股份有限公司 A kind of liquid-crystal composition containing polyfluoro biphenyl liquid crystal compound and its application
CN108624332A (en) * 2017-03-16 2018-10-09 北京八亿时空液晶科技股份有限公司 A kind of negative dielectric liquid crystal composition and its application
WO2019076899A1 (en) * 2017-10-18 2019-04-25 Merck Patent Gmbh Liquid-crystalline medium and liquid-crystal display comprising the same
CN108517218A (en) * 2018-07-03 2018-09-11 晶美晟光电材料（南京）有限公司 A kind of liquid-crystal composition and its application with high-k

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Title
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Application publication date: 20201117