CN108148602A - A kind of liquid-crystal composition and its application - Google Patents

A kind of liquid-crystal composition and its application Download PDF

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Publication number
CN108148602A
CN108148602A CN201810132257.0A CN201810132257A CN108148602A CN 108148602 A CN108148602 A CN 108148602A CN 201810132257 A CN201810132257 A CN 201810132257A CN 108148602 A CN108148602 A CN 108148602A
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general formula
compound
liquid
follows shown
follows
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Inventor
史子谦
丰佩川
王爱丽
房凤梅
张德超
金晓雨
邵汉磊
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YANTAI XIANHUA CHEM-TECH Co Ltd
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YANTAI XIANHUA CHEM-TECH 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

Abstract

The present invention relates to a kind of liquid-crystal compositions.The liquid-crystal composition includes the component of following mass percent：Liquid-crystal compounds shown in 1~15% one or more general formulas I 1 and/or general formula I 2；The liquid-crystal compounds of 10~40% one or more general formulas II；The liquid-crystal compounds of 10~50% one or more general formula IIIs；The liquid-crystal compounds of 5~20% one or more general formulae IVs；The liquid-crystal compounds of 10~40% one or more general formulas V.Wherein, the structure of general formula I 1, general formula I 2, general formula II, general formula III, general formulae IV and general formula V is as follows.Advantageous effect：It is wide with operating temperature section the present invention provides one kind, appropriate birefringence anisotropic, high dielectric anisotropic, low rotary viscosity, fast response speed liquid-crystal composition, especially suitable for low box thickness, active matrix TN TFT, IPS TFT, the FFS TFT displays of high display quality picture.

Description

A kind of liquid-crystal composition and its application
Technical field
The present invention relates to a kind of liquid-crystal composition, the invention further relates to a kind of liquid-crystal composition in field of liquid crystal Application.
Background technology
In the prior art, plurality of liquid crystals compound has been synthesized, but single liquid-crystal compounds can not meet wide work temperature The various liquid crystal devices such as degree, appropriate birefringence anisotropic, high dielectric anisotropic, low rotary viscosity, fast response speed Required performance parameter.Therefore the liquid crystal material used as liquid crystal media is all liquid-crystal composition.From liquid-crystal composition tune From the perspective of system, these requirements are taken into account using liquid-crystal compounds of different nature, since the performance of material various aspects has It mutually restricts, such as using this short response time that can realize with low viscosity value, but can usually reduce again simultaneously a bit Clearing point；Rotary viscosity can then be increased by improving dielectric anisotropic, improve operating temperature, and be difficult to take into account cryogenic property etc..If It forms the good liquid-crystal composition of various functions and still needs to the new product of continual exploitation.Therefore, it is necessary to propose a kind of liquid crystal group Object is closed, operating temperature section is wide, and appropriate birefringence anisotropic, high dielectric items are different to solve having needed for practical application The problem of property, performance of low rotary viscosity, fast response speed.
Invention content
In view of the above shortcomings of the prior art, provide a kind of has that operating temperature section is wide, and appropriate birefringence is each to the present invention The opposite sex, high dielectric anisotropic, low rotary viscosity, fast response speed liquid-crystal composition.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of liquid-crystal composition, the liquid-crystal composition include：
It accounts for shown in one or more general formulas I -1 of the 1~15% of the liquid-crystal composition gross mass and/or general formula I -2 Liquid-crystal compounds；
Account for the liquid-crystal compounds shown in 10~40% one or more general formulas II of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~50%% one or more general formula IIIs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 5~20% one or more general formulae IVs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~40% one or more general formulas V of the liquid-crystal composition gross mass；
Wherein, R1、R2、R3、R4、R5、R6、R7、R8Expression H atom independently, containing 1~7 carbon atom or appoint The alkyl containing 1~7 carbon atom, the alkoxy containing 1~6 carbon atom or the arbitrary H originals that meaning H atom replace by F atom The alkoxy containing 1~7 carbon atom that son is replaced by F atom, the alkenyl containing 2~6 carbon atoms or arbitrary H atom quilt The alkenyl containing 2~6 carbon atoms, the alkenyloxy containing 3~5 carbon atoms or the arbitrary H atom of F atom substitution are by F Any of which group of the alkenyloxy containing 3~5 carbon atoms of atom substitution；
L1、L2、L3、L4、L5、L6Respectively independent expression H or F；
X1、X2、X3、X4It is any group in following (1)~group shown in (4) respectively：
(1)-H、-Cl、-F、-CN、-OCN、-OCF3、-CF3、-CHF2、-CHF2、-OCHF2、 -SCN、-NCS、-SF5；
(2) alkyl containing 1~7 carbon atom, contains 2~6 carbon atoms at the alkoxy containing 1~7 carbon atom Alkenyl, the alkenyloxy group containing 2~6 carbon atoms；
(3) one or more-CH2By-CH=CH- ,-C ≡ C- ,-COO- ,-OOC-,It substitutes and replaces Group shown in above-mentioned (2) not being connected directly for the oxygen atom in rear group；
(4) group shown in arbitrary H atom is replaced by F atom above-mentioned (2), (3)；
It is respectively one or more in independent expression following groups：
It is respectively one or more in independent expression following groups：
Respectively one kind in independent expression following groups or It is a variety of：
M, n, respective independent expression 0,1；
O represents 0,1 or 2, when o represents 2,Can it is identical can be different.
Preferably, the general formula I -1, the structure of compound is as follows shown in I -2：
Preferably, the structure of compound is as follows shown in the general formula II：
Wherein, the structure of compound is as follows shown in the general formula II -1：
And compound shown in the general formula II -2 Structure is as follows：
And
The structure of compound is as follows shown in the general formula II -3：
And
The structure of compound is as follows shown in the general formula II -4：
And
The structure of compound is as follows shown in the general formula II -5：
And
The structure of compound is as follows shown in the general formula II -6：
And
The structure of compound is as follows shown in the general formula II -7：
And
The structure of compound is as follows shown in the general formula II -8：
And
The structure of compound is as follows shown in the general formula II -9：
And
The structure of compound is as follows shown in the general formula II -10：
And
The structure of compound is as follows shown in the general formula II -11：
And
The structure of compound is as follows shown in the general formula II -12：
And
The structure of compound is as follows shown in the general formula II -13：
And
The structure of compound is as follows shown in the general formula II -14：
And
The structure of compound is as follows shown in the general formula II -15：
And
The structure of compound is as follows shown in the general formula II -16：
And
The structure of compound is as follows shown in the general formula II -17：
And
The structure of compound is as follows shown in the general formula II -18：
And
The structure of compound is as follows shown in the general formula II -19：
And
The structure of compound is as follows shown in the general formula II -20：
And
The structure of compound is as follows shown in the general formula II -21：
And
The structure of compound is as follows shown in the general formula II -22：
Preferably, the structure of compound is as follows shown in the general formula III：
The structure of compound is as follows shown in the general formula III -1：
And
The structure of compound is as follows shown in the general formula III -2：
And
The structure of compound is as follows shown in the general formula III -3：
Preferably, the structure of compound is as follows shown in the general formulae IV：
The structure of compound is as follows shown in the general formulae IV -1：
And
The structure of compound is as follows shown in the general formulae IV -2：
Preferably, the structure of compound is as follows shown in the general formula V：
Preferably, the structure of compound is as follows shown in the general formula V -1：
And
The structure of compound is as follows shown in the general formula V -2：
And
The structure of compound is as follows shown in the general formula V -3：
And
The structure of compound is as follows shown in the general formula V -4：
And
The structure of compound is as follows shown in the general formula V -5：
And
The structure of compound is as follows shown in the general formula V -6：
And
The structure of compound is as follows shown in the general formula V -7：
And
The structure of compound is as follows shown in the general formula V -8：
And
The structure of compound is as follows shown in the general formula V -9：
And
The structure of compound is as follows shown in the general formula V -10：
And
The structure of compound is as follows shown in the general formula V -11：
And
The structure of compound is as follows shown in the general formula V -12：
And
The structure of compound is as follows shown in the general formula V -13：
And
The structure of compound is as follows shown in the general formula V -14：
And
The structure of compound is as follows shown in the general formula V -15：
And
The structure of compound is as follows shown in the general formula V -16：
And
The structure of compound is as follows shown in the general formula V -17：
Preferably, the liquid-crystal composition includes：
It accounts for shown in one or more general formulas I -1 of the 2%~12% of the liquid-crystal composition gross mass and/or general formula I -2 Liquid-crystal compounds；
Account for one or more LCD compounds with shown in general formula II of the 15~35% of the liquid-crystal composition gross mass Object；
Account for one or more LCD compounds with shown in general formula III of the 20~50% of the liquid-crystal composition gross mass Object；
Account for one or more LCD compounds with shown in general formulae IV of the 10~20% of the liquid-crystal composition gross mass Object；
Account for one or more LCD compounds with shown in general formula V of the 15~35% of the liquid-crystal composition gross mass Object.
The present invention also provides a kind of electrooptics liquid crystal display, including the liquid-crystal composition described in any one of above-mentioned, if Applied in IPS-TFT, FFS-TFT, then do not need to addition optically active substance；If it is shown applied to TN-TFT or passive drive In, then need the optically active substance of the quality sum of I~V compound represented of the general formula of addition 0~1%.
The present invention also provides a kind of liquid-crystal composition as described in any one of above-mentioned field of liquid crystal display application.
One aspect of the present invention is reasonably introduced multiple by the change to monomer structure in the structure of single crystal compound Functional groups play the effect for taking into account multiple performance；On the other hand by the optimum organization to various liquid-crystal compositions and excellent Ratio is matched, by test, has reached wide with operating temperature section, it is appropriate birefringence anisotropic, high dielectric anisotropic, low Rotary viscosity, fast response speed effect.
Specific embodiment
Illustrate the present invention below with reference to specific embodiment.It should be noted that the following examples are the present invention Example, be only used for illustrating the present invention, and be not limited to the present invention.In the case of without departing from present subject matter or range, It can carry out other combinations and the various improvement in present inventive concept.
Two or more liquid-crystal compounds using conventional method are mixed and produced by the liquid-crystal composition of the present invention, are such as existed It is prepared by the method that different component is mixed under high temperature and is soluble in one another, wherein, liquid-crystal composition is dissolved in for the compound It in solvent and mixes, then distills out the solvent under reduced pressure；Or the liquid-crystal composition of the present invention can be conventionally It prepares, such as the smaller component of wherein content is dissolved in the larger key component of content or at a higher temperature by each institute Belong to component to dissolve in organic solvent, such as acetone, chloroform or methanol, be obtained after removing solvent after then solution is mixed.
Percentage in the present invention is weight percentage, and temperature is degree Celsius (DEG C).Such as illustrate without other, other symbols Specific meaning and test condition are as follows：
Cp (DEG C) represents the clearing point of liquid crystal.
S-N represents the crystalline state of liquid crystal to nematic fusing point (DEG C).
△ n are optical anisotropy, and no is the refractive index of ordinary light, and ne is the refractive index of extraordinary ray, and test condition is, 589nm wavelength, 25 DEG C.Measuring instrument：Abbe refractometer.
△ ε be dielectric anisotropy, △ ε=ε ∥-ε ⊥, wherein, ε ∥ are the dielectric constant for being parallel to molecular axis, and ε ⊥ are Perpendicular to the dielectric constant of molecular axis, test condition is 25 DEG C；Measuring instrument：INSTEC:ALCT-IR1；20 microns of parallel boxes, It is not added with chiral agent.
γ1：Rotary viscosity (mPas), test condition are 25 ± 0.2 DEG C.
Measuring instrument：INSTEC:ALCT-IR1；20 microns of parallel boxes, are not added with chiral agent.
Liquid-crystal composition in the embodiment of the present invention using the heat of solution generally used in the industry or shakes mixed method, first Liquid-crystal compounds is weighed by weight percentage with balance, wherein addition sequence is weighed without particular requirement, usually with liquid-crystal compounds The sequence of fusing point from high to low weighs mixing successively, is shaken in heating stirring or earthquake machine so that each component under 60 DEG C of constant temperature It melts uniformly, then filters, finally encapsulated up to target sample through absorption, micro-filtration membrane microfiltration.
Used each ingredient below in an example can be synthesized or passed through by well known method Commercial sources obtain.These synthetic technologys are conventional, and acquired each liquid-crystal compounds meets electrical type compound mark after tested It is accurate.
Embodiment 1
The formula of liquid-crystal composition is as follows：
Embodiment 2
The formula of liquid-crystal composition is as follows：
Embodiment 3
The formula of liquid-crystal composition is as follows：
Embodiment 4
The formula of liquid-crystal composition is as follows：
Embodiment 5
The formula of liquid-crystal composition is as follows：
Embodiment 6
The formula of liquid-crystal composition is as follows：
Embodiment 7
The formula of liquid-crystal composition is as follows：
Embodiment 8
The formula of liquid-crystal composition is as follows：
It can show that one aspect of the present invention is by the change to monomer structure, i.e., in list by above-described embodiment 1- embodiments 8 Multiple functional groups are reasonably introduced in the structure of brilliant compound, play the effect for taking into account multiple performance；On the other hand pass through Optimum organization and optimum ratio to various liquid-crystal compositions by test, have reached wide with operating temperature section, appropriate double Reflect the effect of anisotropic, high dielectric anisotropic, low rotary viscosity, fast response speed.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.Therefore, nothing By from the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and cannot limit this hair Bright, claims indicate the scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention, therefore, with this Any change in the comparable meaning and scope of claims of invention is all considered as the claim for being included in the present invention In the range of book.

Claims (10)

1. a kind of liquid-crystal composition, which is characterized in that the liquid-crystal composition includes：
Account for one or more general formulas I -1 of the 1~15% of the liquid-crystal composition gross mass and/or the liquid crystal shown in general formula I -2 Compound；
Account for the liquid-crystal compounds shown in 10~40% one or more general formulas II of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~50%% one or more general formula IIIs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 5~20% one or more general formulae IVs of the liquid-crystal composition gross mass；
Account for the liquid-crystal compounds shown in 10~40% one or more general formulas V of the liquid-crystal composition gross mass；
Wherein, R1、R2、R3、R4、R5、R6、R7、R8Expression H atom independently, containing 1~7 carbon atom or arbitrary H are former The alkyl containing 1~7 carbon atom that son is replaced by F atom, the alkoxy containing 1~6 carbon atom or arbitrary H atom are by F The alkoxy containing 1~7 carbon atom, the alkenyl containing 2~6 carbon atoms or the arbitrary H atom of atom substitution are by F atom The alkenyl containing 2~6 carbon atoms of substitution, the alkenyloxy containing 3~5 carbon atoms or arbitrary H atom are taken by F atom Any of which group of the alkenyloxy containing 3~5 carbon atoms in generation；
L1、L2、L3、L4、L5、L6Respectively independent expression H or F；
X1、X2、X3、X4It is any group in following (1)~group shown in (4) respectively：
(1)-H、-Cl、-F、-CN、-OCN、-OCF3、-CF3、-CHF2、-CHF2、-OCHF2、-SCN、-NCS、-SF5；
(2) alkyl containing 1~7 carbon atom, the alkoxy containing 1~7 carbon atom, the alkene containing 2~6 carbon atoms Base, the alkenyloxy group containing 2~6 carbon atoms；
(3) one or more-CH2By-CH=CH- ,-C ≡ C- ,-COO- ,-OOC-,Base after substituting and substituting Group shown in above-mentioned (2) that oxygen atom in group is not connected directly；
(4) group shown in arbitrary H atom is replaced by F atom above-mentioned (2), (3)；
It is respectively one or more in independent expression following groups：
It is respectively one or more in independent expression following groups：
It is respectively one or more in independent expression following groups：
M, n, respective independent expression 0,1；
O represents 0,1 or 2, when o represents 2,Can it is identical can be different.
2. liquid-crystal composition according to claim 1, which is characterized in that the general formula I -1, the knot of compound shown in I -2 Structure is as follows：
3. liquid-crystal composition according to claim 1, which is characterized in that the structure of compound shown in the general formula II is such as Under：
Wherein, the structure of compound is as follows shown in the general formula II -1：
And
The structure of compound is as follows shown in the general formula II -2：
And
The structure of compound is as follows shown in the general formula II -3：
And
The structure of compound is as follows shown in the general formula II -4：
And
The structure of compound is as follows shown in the general formula II -5：
And
The structure of compound is as follows shown in the general formula II -6：
And
The structure of compound is as follows shown in the general formula II -7：
And
The structure of compound is as follows shown in the general formula II -8：
And
The structure of compound is as follows shown in the general formula II -9：
And
The structure of compound is as follows shown in the general formula II -10：
And
The structure of compound is as follows shown in the general formula II -11：
And
The structure of compound is as follows shown in the general formula II -12：
And
The structure of compound is as follows shown in the general formula II -13：
And
The structure of compound is as follows shown in the general formula II -14：
And
The structure of compound is as follows shown in the general formula II -15：
And
The structure of compound is as follows shown in the general formula II -16：
And
The structure of compound is as follows shown in the general formula II -17：
And
The structure of compound is as follows shown in the general formula II -18：
And
The structure of compound is as follows shown in the general formula II -19：
And
The structure of compound is as follows shown in the general formula II -20：
And
The structure of compound is as follows shown in the general formula II -21：
And
The structure of compound is as follows shown in the general formula II -22：
4. liquid-crystal composition according to claim 1, which is characterized in that the structure of compound shown in the general formula III is such as Under：
The structure of compound is as follows shown in the general formula III -1：
And
The structure of compound is as follows shown in the general formula III -2：
And
The structure of compound is as follows shown in the general formula III -3：
5. liquid-crystal composition according to claim 1, which is characterized in that the structure of compound shown in the general formulae IV is such as Under：
The structure of compound is as follows shown in the general formulae IV -1：
And
The structure of compound is as follows shown in the general formulae IV -2：
6. liquid-crystal composition according to claim 1, which is characterized in that the structure of compound shown in the general formula V is such as Under：
7. liquid-crystal composition according to claim 1, which is characterized in that the structure of compound shown in the general formula V -1 is such as Under：
And
The structure of compound is as follows shown in the general formula V -2：
And
The structure of compound is as follows shown in the general formula V -3：
And
The structure of compound is as follows shown in the general formula V -4：
And
The structure of compound is as follows shown in the general formula V -5：
And
The structure of compound is as follows shown in the general formula V -6：
And
The structure of compound is as follows shown in the general formula V -7：
And
The structure of compound is as follows shown in the general formula V -8：
And
The structure of compound is as follows shown in the general formula V -9：
And
The structure of compound is as follows shown in the general formula V -10：
And
The structure of compound is as follows shown in the general formula V -11：
And
The structure of compound is as follows shown in the general formula V -12：
And
The structure of compound is as follows shown in the general formula V -13：
And
The structure of compound is as follows shown in the general formula V -14：
And
The structure of compound is as follows shown in the general formula V -15：
And
The structure of compound is as follows shown in the general formula V -16：
And
The structure of compound is as follows shown in the general formula V -17：
8. liquid-crystal composition according to claim 1, which is characterized in that score meter by weight, it is one or more with logical Liquid-crystal compounds content shown in formula I -1 and/or general formula I -2 is 2%~12%, one or more liquid-crystalizations with general formula II It is 15~35% to close object content, and one or more liquid-crystal compounds contents with general formula III are 20~50%；It is one or more Liquid-crystal compounds content with general formulae IV is 10~20%, and one or more liquid-crystal compounds contents with general formula V are 15 ~35%.
9. a kind of electrooptics liquid crystal display, which is characterized in that including liquid crystal group such as according to any one of claims 1 to 8 Object is closed, if applied in IPS-TFT, FFS-TFT, does not need to addition optically active substance；If applied to TN-TFT or passive drives In dynamic display, then the optically active substance of the quality sum of I~V compound represented of the general formula of addition 0~1% is needed.
10. a kind of liquid-crystal composition according to any one of claims 1 to 8 is in the application of field of liquid crystal display.
CN201810132257.0A 2018-02-09 2018-02-09 A kind of liquid-crystal composition and its application Pending CN108148602A (en)

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CN108659851A (en) * 2018-06-22 2018-10-16 烟台显华化工科技有限公司 A kind of liquid-crystal compounds and its preparation method and application containing difluoro-methoxy bridged bond
CN108690639A (en) * 2018-06-22 2018-10-23 烟台显华化工科技有限公司 A kind of liquid-crystal composition and its application
TWI668298B (en) * 2018-05-31 2019-08-11 大立顯華光電材料股份有限公司 Liquid crystal composition and application
CN115895676A (en) * 2021-08-20 2023-04-04 江苏和成显示科技有限公司 Liquid crystal composition and liquid crystal display device comprising same

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