CN112940754A - Negative liquid crystal composition, liquid crystal display element and liquid crystal display - Google Patents

Negative liquid crystal composition, liquid crystal display element and liquid crystal display Download PDF

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CN112940754A
CN112940754A CN201911403239.2A CN201911403239A CN112940754A CN 112940754 A CN112940754 A CN 112940754A CN 201911403239 A CN201911403239 A CN 201911403239A CN 112940754 A CN112940754 A CN 112940754A
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carbon atoms
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fluorine
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CN112940754B (en
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苏军红
康素敏
邢文晓
宰亚孟
温刚
高红茹
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Shijiazhuang Chengzhi Yonghua Display Material 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
    • 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
    • C09K19/3001—Cyclohexane rings
    • 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
    • C09K19/3001—Cyclohexane rings
    • C09K19/3003—Compounds containing at least two rings in which the different rings are directly linked (covalent bond)
    • 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

Abstract

The invention discloses a negative dielectric anisotropy liquid crystal composition with an IPS or FFS display mode, a liquid crystal display element and a liquid crystal display comprising the liquid crystal composition, and belongs to the field of liquid crystal display. The liquid crystal composition disclosed by the invention comprises a compound shown as a formula I as a first component, a compound shown as a formula II as a second component, a compound shown as a formula III as a third component, wherein the third component comprises at least one compound shown as a formula III-1, a compound shown as a formula IV as a fourth component and a compound shown as a formula V as a fifth component, and has lower rotational viscosity gamma1The ratio of/elastic constant K can be used to develop a fast response liquid crystal display.

Description

Negative liquid crystal composition, liquid crystal display element and liquid crystal display
Technical Field
The invention belongs to the technical field of liquid crystal display, and particularly relates to a liquid crystal composition, a liquid crystal display element comprising the liquid crystal composition and a liquid crystal display.
Background
With the development of Display technology, flat panel Display devices such as Liquid Crystal Displays (LCDs) have advantages of high image quality, power saving, thin body, and wide application range, and thus are widely used in various consumer electronics products such as mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, and desktop computers, and become the mainstream of Display devices. The demand for the liquid crystal flat panel display is increasing. Therefore, higher requirements are also placed on the quality characteristics of the liquid crystal materials used in liquid crystal flat panel displays.
Currently, in the liquid crystal display market, the display modes with competitive power are mainly in-plane switching (IPS), fringe-field switching (FFS), and Vertical Alignment (VA). Among these display modes, IPS and FFS are most characterized in that both electrodes are in the same plane, and electrodes different from the VA display mode are arranged in a three-dimensional manner on both upper and lower surfaces. The liquid crystal display panel has a unique molecular level conversion structure, the visible angle of 178 degrees can be achieved up and down and left and right, the color expression of any angle is hardly discounted, the limit of liquid crystal display is almost achieved, and the visual dead angle is basically eliminated. When the positive liquid crystal is used in an IPS/FFS display mode, a fast response can be obtained and good reliability is obtained; while negative liquid crystals can achieve higher transmittance when used in the IPS/FFS display mode. Therefore, more and more portable small and medium sized display screens adopt the IPS/FFS display mode.
With the technology updating speed of LCD products becoming faster and faster, the requirement on the response speed of LCD products becoming higher and higher, on one hand, the device manufacturers increase the response speed by decreasing the cell thickness d, which requires us to increase the refractive index Δ n of the liquid crystal to match the lower cell thickness, and on the other hand, the response speed of the liquid crystal material also needs to be increased. The response speed of the prior art liquid crystal material is limited by the rotational viscosity gamma of the liquid crystal1Elastic constant K, it is therefore necessary to try to reduce the rotational viscosity γ of the liquid-crystalline medium1And simultaneously, the elastic constant K is increased to improve the response speed. However, in practical studies, it has been found that the rotational viscosity and the elastic constant are a pair of contradictory parameters, and the rotational viscosity is reducedAt the same time, the elastic constant is reduced, and the purpose of reducing the response time is not achieved.
Disclosure of Invention
As a result of intensive studies to solve the above-mentioned problems, the present inventors have made extensive studies, and the liquid crystal composition of the present invention has a low rotational viscosity γ1The ratio of the elastic constant K, in particular, the invention comprises the following:
in a first aspect of the present invention, there is provided a negative dielectric anisotropy liquid crystal composition for use in a liquid crystal display element or a liquid crystal display device having an IPS or FFS display mode, having a dielectric anisotropy value of from-3.8 to-5.0, the liquid crystal composition comprising: a compound represented by formula I as a first component, a compound represented by formula II as a second component, a compound represented by formula III as a third component, wherein the third component comprises at least one compound represented by formula III-1, at least two compounds represented by formula IV as a fourth component and a compound represented by formula V as a fifth component, the mass content of the first component is 27-35%, the mass content of the second component is 5-17%, the mass content of the third component is 5-18%, the mass content of the fourth component is 17-25%, and the mass content of the fifth component is 8-15%:
Figure BDA0002347971460000021
wherein the content of the first and second substances,
R1、R2、R3、R4、R5、R6、R7、R8each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms, wherein R is1、R3、R5、R7Any one or more of the radicals indicated being unconnected-CH2Optionally cyclopentylene, cyclobutyl orCyclopropylene substitution.
The liquid crystal composition has a lower ratio of viscosity to elastic constant, and the response speed of the liquid crystal composition is higher.
The liquid crystal composition of the present invention can be used for developing a liquid crystal display element and a liquid crystal display with rapid response.
In another aspect of the present invention, there is also provided a liquid crystal display device/liquid crystal display device having a fast response speed in a display mode of IPS/FFS, which comprises the liquid crystal composition of the present disclosure.
Detailed Description
[ liquid Crystal composition ]
The present invention provides a negative dielectric anisotropy liquid crystal composition having a dielectric anisotropy value of-3.8 to-5.0, which is used for a liquid crystal display element or a liquid crystal display device having an IPS or FFS display mode, the liquid crystal composition comprising: a compound represented by formula I as a first component, a compound represented by formula II as a second component, a compound represented by formula III as a third component, wherein the third component comprises at least one compound represented by formula III-1, at least two compounds represented by formula IV as a fourth component and a compound represented by formula V as a fifth component, the mass content of the first component is 27-35%, the mass content of the second component is 5-17%, the mass content of the third component is 5-18%, the mass content of the fourth component is 17-25%, and the mass content of the fifth component is 8-15%:
Figure BDA0002347971460000031
wherein the content of the first and second substances,
R1、R2、R3、R4、R5、R6、R7、R8each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 1 carbon atoms0 alkenyl group, C3-8 alkenyloxy group or fluorine-substituted C3-8 alkenyloxy group, wherein R is1、R3、R5、R7Any one or more of the radicals indicated being unconnected-CH2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene.
Examples of the alkyl group having 1 to 10 carbon atoms include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, hexyl, heptyl, octyl, nonyl, decyl, and the like.
Examples of the alkoxy group having 1 to 10 carbon atoms include a methoxy group, an ethoxy group, an n-propoxy group, an isopropoxy group, an n-butoxy group, an isobutoxy group, a pentyloxy group, a hexyloxy group, a heptyloxy group, an octyloxy group, a nonyloxy group, and a decyloxy group.
Examples of the alkenyl group having 2 to 10 carbon atoms include a vinyl group, a 1-propenyl group, a 1-butenyl group, a 2-butenyl group, a 3-butenyl group, a 1-pentenyl group, a 2-pentenyl group, a 3-pentenyl group, a 4-pentenyl group, a 1-hexenyl group, a 2-hexenyl group, and a 3-hexenyl group.
The "fluoro-substituted" in the above-mentioned fluoro-substituted alkyl group having 1 to 10 carbon atoms, fluoro-substituted alkoxy group having 1 to 10 carbon atoms, fluoro-substituted alkenyl group having 2 to 10 carbon atoms, and fluoro-substituted alkenyloxy group having 3 to 8 carbon atoms may be a monofluoro-substituted, or a polyfluoro-substituted, such as a difluoro-substituted, trifluoro-substituted, or a perfluoro-substituted group, and the number of fluoro-substituted groups is not particularly limited. Examples of the fluorine-substituted alkyl group having 1 to 10 carbon atoms include, but are not limited to, fluoromethyl, difluoromethyl, trifluoromethyl, 1-fluoroethyl, 2-fluoroethyl, 1, 2-difluoroethyl, 1,1, 2-trifluoroethyl, and 1,1,1,2, 2-pentafluoro-substituted ethyl.
In the liquid crystal composition, a combination containing the compound shown in the formula I, the compound shown in the formula II, the compound shown in the formula III, the compound shown in the formula IV and the compound shown in the formula V is used, so that the liquid crystal composition has a low ratio of rotational viscosity to elastic constant and moderate optical anisotropy delta n.
In the liquid crystal composition of the present invention, preferably, the aforementioned one or more compounds represented by formula II are selected from the group consisting of compounds represented by formulae II-1 to II-4:
Figure BDA0002347971460000041
in the liquid crystal composition of the present invention, preferably, the aforementioned one or more compounds represented by formula III are selected from the group consisting of compounds represented by formulae III-1 to III-7:
Figure BDA0002347971460000051
in the liquid crystal composition of the present invention, preferably, the aforementioned one or more compounds represented by formula IV are selected from the group consisting of compounds represented by formulae IV-1 to IV-4:
Figure BDA0002347971460000052
in the liquid crystal composition of the present invention, preferably, the aforementioned one or more compounds represented by formula V are selected from the group consisting of compounds represented by formula V-1 to formula V-3:
Figure BDA0002347971460000053
Figure BDA0002347971460000061
the liquid crystal composition optionally further comprises one or more compounds shown as a formula VI:
Figure BDA0002347971460000062
wherein R is9、R10Independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms, or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms, wherein any one or more of-CH 2-which are not linked are optionally substituted by cyclopentylene, cyclobutyl or cyclopropylene;
Figure BDA0002347971460000063
each independently represents 1, 4-cyclohexylene or 1, 4-phenylene;
Z1represents a single bond or-CH2O-, when Z1When the compound represents a single bond, the compound is,
Figure BDA0002347971460000064
represents a 1, 4-phenylene group;
m represents 0 or 1.
The compound represented by the formula VI has negative dielectric anisotropy, and the driving voltage of the liquid crystal composition can be adjusted by adding the compound represented by the formula VI into the liquid crystal composition disclosed by the invention.
In the liquid crystal composition of the present invention, preferably, the aforementioned one or more compounds represented by the formula VI are selected from the group consisting of compounds represented by the formulae VI-1 to VI-3:
Figure BDA0002347971460000065
wherein R is91、R101Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atomsOr a group of any one or more unconnected-CH2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene.
In the liquid crystal composition of the present disclosure, preferably, one or more compounds represented by formula vii other than the compound represented by formula i:
Figure BDA0002347971460000071
wherein R is11、R12Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
Figure BDA0002347971460000072
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
By including the compound represented by formula vii in the liquid crystal composition of the present disclosure, the miscibility of the liquid crystal composition can be improved, the rotational viscosity can be reduced, and the response speed of the liquid crystal composition of the present disclosure can be improved.
In the liquid crystal composition of the present disclosure, preferably, the compound represented by the formula VII other than the compound represented by the aforementioned formula I is selected from the group consisting of the compounds represented by the following formulae VII-1 to VII-3:
Figure BDA0002347971460000073
wherein R is11、R12Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
The liquid crystal composition of the present disclosure preferably further comprises one or more compounds represented by formula viii:
Figure BDA0002347971460000074
wherein R is13、R14Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
Figure BDA0002347971460000081
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
By containing the compound shown in the formula VIII in the liquid crystal composition, the phase transition temperature of the liquid crystal composition is favorably improved, and the working temperature range of the liquid crystal composition is adjusted.
In the liquid crystal composition of the present disclosure, preferably, the compound represented by the aforementioned formula viii is selected from the group consisting of compounds represented by the following formulae viii-1 to viii-3:
Figure BDA0002347971460000082
wherein R is13、R14Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
In the liquid crystal composition of the present disclosure, preferably, one or more compounds represented by formula ix is further included:
Figure BDA0002347971460000083
wherein R is15Represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, wherein any one or more of-CH groups are not linked2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene;
R16represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms;
x represents O or S.
By including the compound represented by the formula IX in the liquid crystal composition disclosed by the invention, the liquid crystal composition can have larger negative dielectric anisotropy, and the driving voltage of a device can be reduced.
The liquid crystal composition of the present disclosure, preferably, the aforementioned compound represented by the formula IX is selected from the group consisting of compounds represented by the following formulae IX-1 to IX-12:
Figure BDA0002347971460000084
Figure BDA0002347971460000091
wherein R is151、R161Represents an alkyl group having 1 to 10 carbon atoms.
In the liquid crystal composition of the present disclosure, a dopant having various functions may be optionally added, and when the liquid crystal composition contains a dopant, the content of the dopant is preferably 0.01 to 1.5% by mass in the liquid crystal composition, and examples of the dopant include an antioxidant, an ultraviolet absorber, and a chiral agent.
The antioxidant may be exemplified by the group consisting of,
Figure BDA0002347971460000101
t represents an integer of 1 to 10;
the chiral agent may be, for example,
Figure BDA0002347971460000102
R0represents an alkyl group having 1 to 10 carbon atoms;
examples of the light stabilizer include,
Figure BDA0002347971460000103
Z0represents an alkylene group having 1 to 20 carbon atoms, wherein any one or more hydrogen atoms in the alkylene group are optionally substituted by halogen, and any one or more-CH groups2-optionally substituted by-O-;
examples of the ultraviolet absorber include,
Figure BDA0002347971460000104
R01represents an alkyl group having 1 to 10 carbon atoms.
[ liquid Crystal display element or liquid Crystal display ]
The present disclosure also relates to a liquid crystal display element or a liquid crystal display comprising any of the above liquid crystal compositions; the display element or display is an active matrix display element or display.
Optionally, the active matrix display element or display is an IPS-TFT/FFS-TFT liquid crystal display element or display.
The liquid crystal display element or the liquid crystal display comprising the compound or the liquid crystal composition has higher response speed.
Examples
In order to more clearly illustrate the disclosure, the disclosure is further described below in connection with preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the present disclosure.
In this specification, unless otherwise specified, the percentages refer to mass percentages, temperatures are in degrees centigrade (° c), and the specific meanings and test conditions of other symbols are as follows:
cp represents a liquid crystal clearing point (DEG C), and is measured by a DSC quantitative method;
Δ n represents optical anisotropy, noRefractive index of ordinary light, neThe refractive index of the extraordinary ray is measured under the conditions of 25 +/-2 ℃ and 589nm, and the Abbe refractometer is used for testing;
Δ ε represents dielectric anisotropy, and Δ ε∥-ε⊥Wherein, epsilon∥Is a dielectric constant parallel to the molecular axis,. epsilon⊥Dielectric constant perpendicular to the molecular axis, at 25 + -0.5 deg.C, 20 μm parallel box, INSTEC: ALCT-IR1 test;
γ1expressed as rotational viscosity (mPas) at 25 + -0.5 deg.C, 20 micron parallel boxes, INSTEC: ALCT-IR1 test;
K11is a torsional elastic constant, K33For the splay spring constant, the test conditions were: at 25 ℃, INSTEC is ALCT-IR1 and a 20-micron vertical box;
the preparation method of the liquid crystal composition comprises the following steps: weighing each liquid crystal monomer according to a certain proportion, putting the liquid crystal monomers into a stainless steel beaker, putting the stainless steel beaker filled with each liquid crystal monomer on a magnetic stirring instrument for heating and melting, adding a magnetic rotor into the stainless steel beaker after most of the liquid crystal monomers in the stainless steel beaker are melted, uniformly stirring the mixture, and cooling to room temperature to obtain the liquid crystal composition.
The liquid crystal monomer structure of the embodiment of the disclosure is represented by codes, and the code representation methods of the liquid crystal ring structure, the end group and the connecting group are shown in the following tables 1 and 2.
Corresponding code of the ring structure of Table 1
Figure BDA0002347971460000111
Figure BDA0002347971460000121
TABLE 2 corresponding codes for end groups and linking groups
Figure BDA0002347971460000122
Figure BDA0002347971460000131
Examples are:
Figure BDA0002347971460000132
the code is CC-Cp-V1;
Figure BDA0002347971460000133
the code is CPY-2-O2;
Figure BDA0002347971460000134
the code is CCY-3-O2;
Figure BDA0002347971460000135
the code is COY-3-O2;
Figure BDA0002347971460000136
the code is CCOY-3-O2;
Figure BDA0002347971460000137
the code is Sb-CpO-O4;
Figure BDA0002347971460000138
the code is Sc-CpO-O4.
Example 1
The formulation and corresponding properties of the liquid crystal compositions are shown in table 3 below.
TABLE 3 formulation and corresponding Properties of the liquid crystal composition of example 1
Figure BDA0002347971460000139
Figure BDA0002347971460000141
Comparative example 1
The formulation and corresponding properties of the liquid crystal compositions are shown in table 4 below.
TABLE 4 formulation and corresponding Properties of the comparative example 1 liquid Crystal composition
Figure BDA0002347971460000142
Figure BDA0002347971460000151
The same as in example 1 except that CY-3-O2 in example 1 was replaced with COY-3-O2 was used as comparative example 1. Gamma of the liquid crystal composition of example 1 of the present disclosure, compared to comparative example 11/K11Lower and faster response, and can be used for developing a liquid crystal display with fast response.
Example 2
The formulation and corresponding properties of the liquid crystal compositions are shown in table 5 below.
TABLE 5 formulation and corresponding Properties of the liquid crystal composition of example 2
Figure BDA0002347971460000152
Figure BDA0002347971460000161
Comparative example 2
The formulation and corresponding properties of the liquid crystal compositions are shown in table 6 below.
TABLE 6 formulation and corresponding Properties of the liquid crystal composition of comparative example 2
Figure BDA0002347971460000162
CCY-3-O1 and CCY-2-O2 in example 2 were replaced with CCOY-3-O2 and CCOY-2-O2, and the rest was the same as in example 2 to prepare comparative example 2. Gamma of the liquid crystal composition of example 2 of the present disclosure, compared to comparative example 21/K11Lower and faster response, and can be used for developing a liquid crystal display with fast response.
Example 3
The formulation and corresponding properties of the liquid crystal compositions are shown in table 7 below.
TABLE 7 formulation and corresponding Properties of the liquid crystal composition of example 3
Figure BDA0002347971460000171
Example 4
The formulation and corresponding properties of the liquid crystal compositions are shown in Table 8 below.
TABLE 8 formulation and corresponding Properties of the liquid crystal composition of example 4
Figure BDA0002347971460000172
Figure BDA0002347971460000181
Example 5
The formulation and corresponding properties of the liquid crystal compositions are shown in table 9 below.
TABLE 9 formulation and corresponding Properties of the liquid crystal composition of example 5
Figure BDA0002347971460000182
Figure BDA0002347971460000191
Example 6
The formulation and corresponding properties of the liquid crystal composition are shown in table 10 below.
TABLE 10 formulation and corresponding Properties of the liquid crystal composition of example 6
Figure BDA0002347971460000192
Example 7
The formulation and corresponding properties of the liquid crystal compositions are shown in Table 11 below.
TABLE 11 formulation and corresponding Properties of the liquid crystal composition of example 7
Figure BDA0002347971460000201
Example 8
The formulation and corresponding properties of the liquid crystal compositions are shown in table 12 below.
TABLE 12 formulation and corresponding Properties of the liquid crystal composition of example 8
Figure BDA0002347971460000202
Figure BDA0002347971460000211
Example 9
The formulation and corresponding properties of the liquid crystal compositions are shown in Table 13 below.
TABLE 13 formulation and corresponding Properties of the liquid crystal composition of example 9
Figure BDA0002347971460000212
Figure BDA0002347971460000221
Example 10
The formulation and corresponding properties of the liquid crystal compositions are shown in Table 14 below.
TABLE 14 formulation and corresponding Properties of the liquid crystal composition of example 10
Figure BDA0002347971460000222
Example 11
The formulation and corresponding properties of the liquid crystal compositions are shown in Table 15 below.
TABLE 15 formulation and corresponding Properties of the liquid crystal composition of example 11
Figure BDA0002347971460000223
Figure BDA0002347971460000231
It should be understood that the above-mentioned examples are for illustrative purposes only and are not intended to limit the embodiments of the present disclosure, and that various other modifications and changes in light thereof will be suggested to persons skilled in the art and are not intended to be exhaustive or to limit the present disclosure to the precise embodiments disclosed herein.

Claims (10)

1. A negative dielectric anisotropy liquid crystal composition for a liquid crystal display element or a liquid crystal display device having an IPS or FFS display mode, having a dielectric anisotropy value of from-3.8 to-5.0, comprising: a compound represented by formula I as a first component, a compound represented by formula II as a second component, a compound represented by formula III as a third component, wherein the third component comprises at least one compound represented by formula III-1, at least two compounds represented by formula IV as a fourth component and a compound represented by formula V as a fifth component, the mass content of the first component is 27-35%, the mass content of the second component is 5-17%, the mass content of the third component is 5-18%, the mass content of the fourth component is 17-25%, and the mass content of the fifth component is 8-15%:
Figure FDA0002347971450000011
wherein the content of the first and second substances,
R1、R2、R3、R4、R5、R6、R7、R8each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms, wherein R is1、R3、R5、R7Any one or more of the radicals indicated being unconnected-CH2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene.
2. The liquid crystal composition of claim 1, further comprising one or more compounds of formula vi:
Figure FDA0002347971450000012
wherein R is9、R10Independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, a fluorine-substituted alkenyl group having 2 to 10 carbon atoms, an alkenyloxy group having 3 to 8 carbon atoms or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms, wherein any one or more of them is-CH2-Optionally substituted with cyclopentylene, cyclobutyl, or cyclopropylene;
Figure FDA0002347971450000021
each independently represents 1, 4-cyclohexylene or 1, 4-phenylene;
Z1represents a single bond or-CH2O-, when Z1When the compound represents a single bond, the compound is,
Figure FDA0002347971450000022
represents a 1, 4-phenylene group;
m represents 0 or 1.
3. The liquid crystal composition of claim 2, wherein the compound of formula vi is selected from the group consisting of compounds of formulae vi-1 to vi-3:
Figure FDA0002347971450000023
wherein R is91、R101Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, or an alkyl group having 1 to 10 carbon atomsAlkoxy, fluorine-substituted alkoxy having 1 to 10 carbon atoms, alkenyl having 2 to 10 carbon atoms, fluorine-substituted alkenyl having 2 to 10 carbon atoms, alkenyloxy having 3 to 8 carbon atoms or fluorine-substituted alkenyloxy having 3 to 8 carbon atoms, wherein any one or more of them are not linked to form-CH2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene.
4. The liquid crystal composition of claim 1, further comprising one or more compounds of formula vii in addition to said compound of formula i:
Figure FDA0002347971450000024
wherein R is11、R12Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
Figure FDA0002347971450000031
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
5. The liquid crystal composition according to claim 4, wherein the compound represented by the formula VII other than the compound represented by the formula I is selected from the group consisting of compounds represented by the formulae VII-1 to VII-3:
Figure FDA0002347971450000032
wherein R is11、R12Each independently represents an alkyl group having 1 to 10 carbon atoms or a fluorine-substituted carbonAn alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
6. The liquid crystal composition of claim 1, further comprising one or more compounds of formula viii:
Figure FDA0002347971450000033
wherein R is13、R14Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms;
Figure FDA0002347971450000034
each independently represents 1, 4-cyclohexylene, 1, 4-cyclohexenylene or 1, 4-phenylene.
7. The liquid crystal composition of claim 6, wherein the compound of formula viii is selected from the group consisting of compounds of formulae viii-1 to viii-3:
Figure FDA0002347971450000035
wherein R is13、R14Each independently represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms or a fluorine-substituted alkenyl group having 2 to 10 carbon atoms.
8. The liquid crystal composition of claim 1, further comprising one or more compounds of formula ix:
Figure FDA0002347971450000041
wherein R is15Represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms, wherein any one or more of-CH groups are not linked2-optionally substituted with cyclopentylene, cyclobutyl or cyclopropylene;
R16represents an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or a fluorine-substituted alkoxy group having 1 to 10 carbon atoms;
x represents O or S.
9. The liquid crystal composition of claim 8, wherein the compound of formula ix is selected from the group consisting of compounds of formulae ix-1 to ix-12:
Figure FDA0002347971450000042
Figure FDA0002347971450000051
wherein R is151、R161Represents an alkyl group having 1 to 10 carbon atoms.
10. A liquid crystal display element or a liquid crystal display comprising the liquid crystal composition according to any one of claims 1 to 9, wherein the liquid crystal display element or the liquid crystal display is an active matrix addressing display element or a display.
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CN112342033A (en) * 2020-11-04 2021-02-09 晶美晟光电材料（南京）有限公司 Liquid crystal composition with negative dielectric constant and application thereof
CN113403088A (en) * 2021-06-17 2021-09-17 烟台显华化工科技有限公司 Negative dielectric anisotropy liquid crystal composition and liquid crystal display device
CN115785970A (en) * 2022-11-24 2023-03-14 Tcl华星光电技术有限公司 Liquid crystal composition and liquid crystal display panel

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CN109880639A (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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112342033A (en) * 2020-11-04 2021-02-09 晶美晟光电材料（南京）有限公司 Liquid crystal composition with negative dielectric constant and application thereof
CN112342033B (en) * 2020-11-04 2023-04-14 晶美晟光电材料（南京）有限公司 Liquid crystal composition with negative dielectric constant and application thereof
CN113403088A (en) * 2021-06-17 2021-09-17 烟台显华化工科技有限公司 Negative dielectric anisotropy liquid crystal composition and liquid crystal display device
CN115785970A (en) * 2022-11-24 2023-03-14 Tcl华星光电技术有限公司 Liquid crystal composition and liquid crystal display panel

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