CN108659854A - A kind of liquid-crystal composition and its application - Google Patents
A kind of liquid-crystal composition and its application Download PDFInfo
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- CN108659854A CN108659854A CN201710198774.3A CN201710198774A CN108659854A CN 108659854 A CN108659854 A CN 108659854A CN 201710198774 A CN201710198774 A CN 201710198774A CN 108659854 A CN108659854 A CN 108659854A
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- 0 *c1c(*)c(F)c(C(CC2)CCC2C(CC2)CCC2I)cc1 Chemical compound *c1c(*)c(F)c(C(CC2)CCC2C(CC2)CCC2I)cc1 0.000 description 2
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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
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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
- C09K19/06—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
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- 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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Abstract
The present invention relates to a kind of liquid-crystal compositions and its application to include at least one or more compounds of formula I and one or more compounds of formula II.Liquid-crystal composition of the present invention has the characteristic of low rotary viscosity, larger elastic constant, good low temperature intersolubility and fast response speed.It can be used for various modes fast-response liquid crystal display, be obviously improved the response time in the VA such as VA/MVA/PVA/PSVA display devices and IPS, FFS liquid crystal display, hence it is evident that improve the display effect of liquid crystal display.
Description
Technical field
The present invention relates to a kind of liquid crystal display material and its applications, and in particular to a kind of negative dielectric liquid crystal composition and its answers
With the liquid-crystal composition more particularly to a kind of fast-response and application.
Background technology
Negative liquid crystal is most proposed earlier than the end of the eighties in last century, is mainly used for VA patterns, major advantage is to compare
Degree is high, and major defect is that visual angle is small, and the response time is slow.With the development of display technology, the technologies such as MVA, PVA, PSVA go out in succession
It is existing, solve the problems, such as response time and visual angle.In recent years, as touch screen becomes the mobile device market mainstream, IPS and FFS
The hard panel type display of class has inborn advantage, IPS and FFS class displays that can both use positivity liquid crystal, can also use negativity
Liquid crystal, due to being bent electric field present in the class display, positivity liquid crystal is arranged along electric field line direction, curved so as to cause molecule
Song, and decline in transmitance；Negative liquid crystal is arranged perpendicular to electric field line direction, thus transmitance can be substantially improved, and be current
It promotes transmitance, reduce backlight power consumption the best way.But response time problem existing for negative liquid crystal is the weight currently encountered
Hang-up, the FFS display response times slow 50% or more using the FFS displays of negative liquid crystal relative to positivity liquid crystal.
Therefore, how to promote the response time of negative liquid crystal becomes current key problem.
Specifically, the response time of liquid crystal display, (d was thickness of liquid crystal layer, and γ 1 is depending on " (d^2 γ 1)/K " _ eff
Liquid crystal rotary viscosity, Keff are effective elastic constant), therefore, rotary viscosity is reduced, thickness of liquid crystal layer is reduced and promotes elasticity often
Number can achieve the purpose that improve the response time, and thickness of liquid crystal layer depends on the design of liquid crystal display；For liquid crystal combination
Object, reduces rotary viscosity and thickness of liquid crystal is most effective.
Liquid-crystal composition provided by the present invention has low rotary viscosity, can be effectively reduced the response of liquid crystal display
Time.
Invention content
Based on above-mentioned background content, the present invention provides a kind of liquid-crystal composition, and the composition has low rotary viscosity, good
The features such as good low temperature intersolubility and fast response speed.
Specifically, a kind of liquid-crystal composition proposed by the present invention, wherein include at least one or more general formula I institute's generations
The compound of table, one or more compounds of formula II and one or more compounds of formula III；
The general formula I is specially：
In the general formula I, R1Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；
Ring A1Selected from lower structure：
The general formula II is specially：
In the general formula II, R3Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；Ring A2
Represent trans- 1,4- cyclohexyl, 1,4- phenylenes；The integer that n is 1~6.
Compound representated by general formula I provided by the invention is the liquid-crystal compounds for containing 2,3- difluorobenzene structures, such
Compound has larger negative dielectric anisotropic and high clearing point.In liquid-crystal composition provided by the invention, each liquid crystal group
/ and be 100%；The content of compound in the composition is preferably 5~70% described in general formula I, and more preferably 8~60%, 10
~57%, 30~60%, 30~57%, 5~40%, 10~40%, 10~42%, 5~65%, 20~65%, 26~57%,
35~65%, 38~57%, 8~50%, 10~47%, 35~65%, 37~46.5%, 40~57%, 1~35% or 2~
33%.
The compounds of formula I is for the one or more of structure shown in Formulas I A~IE：
In the Formulas I A~IE, R1Represent C1~C7Straight chained alkyl, C2~C7Straight-chain alkenyl；R2Represent C1~C7It is straight
Alkyl group, unbranched alkoxy；Preferably, in the Formulas I A~IE, R1Represent C2~C5Straight chained alkyl；R2Represent C1~C4It is straight
Alkyl group or unbranched alkoxy.
As the preferred embodiment of the present invention, the compound representated by the general formula I be selected from Formulas I A1~IA24, Formulas I B1~
The one or more of compound representated by IB24, Formulas I C1~IC24, Formulas I D1~ID24 or Formulas I E1~IE24：
The compound represented containing at least one general formula IA or IB in the compound that preferred formula I of the present invention is represented, or contain
There are the compound that at least one general formula IA is represented and the compound that at least one general formula IB is represented, or contains at least one general formula IA
The compound that the compound and at least one general formula IC that the compound of representative, at least one general formula IB are represented represent.It is further excellent
Selection of land, the content of compound in the composition representated by the IA is preferably 0~56%, and more preferably 0~42%, 2
~42%, 13~56%, 13~45%, 1~35%, 2~33%, 5~43%, 10~56%, 20~56% or 23~43%；
The content of compound in the composition representated by the IB is preferably 0~35%, more preferably 0~26%, 0~
15%, 0~19.5%, 0~22%, 0~29%, 5~35% or 7~29%；Compound representated by the IC is at described group
The content closed in object is preferably 0~14%, and more preferably 0~4%.
Compound representated by general formula II provided by the present invention is the liquid crystal that two rings have bis- fluoro- 1,4- phenyl of 2,3-
Compound, such compound have larger negative dielectric anisotropic and excellent intersolubility.Liquid crystal group provided by the invention
It closes in object, the sum of each liquid crystal components are 100%；The content of compound in the composition is preferably 5~40% described in general formula II, more
Preferably 8~35%, 10~30%, 19~30%, 15~24%, 10~21%, 8~35%, 10~29%, 10~35%,
13~30%, 8~35%.
The compounds of formula II is for the one or more of structure shown in Formula II A~IIB：
In the Formula II A~IIB, R3Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；N be 1~5 it is whole
Number；Preferably, in the Formula II A~IIB, R3Represent C2~C5Straight chained alkyl or C2~C5Straight-chain alkenyl.
As the preferred embodiment of the present invention, the compound representated by the general formula II is selected from Formula II A1~IIA16 and IIB1
It is one or more in~IIB16：
It can also further comprise the compound representated by general formula III in composition provided by the invention.The general formula III is
Twin nuclei.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；Compound is in group described in general formula III
The content closed in object is preferably 5~65%, more preferably 10~55%, 13~53%, 13~50%, 15~55%, 19~
53%, 25~55%, 25~53%, 10~35%, 13~35%, 10~40%, 13~36%, 15~40%, 19~36%,
19~60%, 15~36%, 13~32%, 22~38%, 24~60% or 19~50%.
The general formula III is specially：
In the general formula III, R4、R5C is represented each independently1~C12Straight chained alkyl, unbranched alkoxy or C2~C12's
Straight-chain alkenyl；Ring A3, ring A4Trans- 1,4- cyclohexyl or 1,4 phenylenes are represented each independently.
Preferably, the compounds of formula III is the one or more of structure shown in formula III A~IIIC：
In the formula III A~IIIC, R4Represent C1~C7Straight chained alkyl；R5Represent C1~C7Straight chained alkyl, straight chain alkane
Oxygroup or C2~C7Straight-chain alkenyl；Preferably, in the formula III A~IIIC, R4Represent C2~C5Straight chained alkyl；R5It represents
C2~C5Straight chained alkyl, unbranched alkoxy or C2~C5Straight-chain alkenyl.
As the preferred embodiment of the present invention, the compound that the general formula III represents is selected from formula III A1~IIIA34, IIIB1
It is one or more in~IIIB24 and IIIC1~IIIB24：
Liquid-crystal composition provided by the present invention also can further include one or more chemical combination selected from general formula IV structures
Object.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；Compound described in general formula IV is in the composition
Content be preferably 0~45%, more preferably 0~35%, 0~30%, 0~20%, 0~17%, 0~27%, 0~24%, 4
~9%, 3~30%, 5~28% or 0~28%.
The concrete structure of the general formula IV is：
In the general formula IV, R6、R7C is represented each independently1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be replaced by O or CH=CH；Ring A5Selected from lower structure：
Preferably, the structural compounds of the general formula IV are selected from the one or more of structure shown in formula IV A~formula IV C：
In the general formula IVA~formula IV C, R6Represent C2~C10Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C8It is straight
Alkyl group；Preferably, in the general formula IVA~formula IV C, R6Represent C2~C5Straight chained alkyl or straight-chain alkenyl；R7Represent C1~
C5Straight chained alkyl.
As the preferred embodiment of the present invention, the compound of the Formula IVIV be selected from formula IV A1~IVA18, formula IV B1~
It is one or more in structure shown in IVB22 and formula IV C1~IVC20：
It can also further comprise the compound of one or more general formula V structures in liquid-crystal composition of the present invention.This hair
In the liquid-crystal composition of bright offer, the sum of each liquid crystal components are 100%；The content of compound in the composition described in general formula V is excellent
It is selected as 0~30%, more preferably 0~20%, 0~15%, 0~12%, 0~8%, 5~15% or 8~9%.
The concrete structure of the general formula V is：
In the general formula V, R8Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；R9Represent F, C1~C12's
Straight chained alkyl, unbranched alkoxy C2~C12Straight-chain alkenyl；L1、L2、L3H or F is represented each independently.
Preferably, the compounds of formula V selected from Formula V A~VD with one or more in lower structure；
In the Formula V A~VD, R8Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl, R9Represent C1~C7It is straight
Alkyl group, unbranched alkoxy or C2~C7Straight-chain alkenyl；Preferably, in the Formula V A~VD, R8Represent C2~C5Straight chain alkane
Base or C2~C4Straight-chain alkenyl, R9Represent C1~C5Straight chained alkyl, unbranched alkoxy or C2~C4Straight-chain alkenyl.
As the preferred embodiment of the present invention, the compound representated by general formula V is selected from Formula V A1~VA4, VB1~VB24, VDC1
It is one or more in~VC14 and VD1~VD24：
In order to improve the synergistic effect between all types of compounds, the present invention is to each component in the liquid-crystal composition that is provided
Percentage composition carry out it is preferred.
Specifically, liquid-crystal composition of the present invention includes following components in percentage by weight：(1) 5~70% is logical
Compound representated by Formulas I；Compound representated by (2) 5~40% general formula II；Change representated by (3) 5~65% general formula IIIs
Close object；Compound representated by (4) 0~45% general formula IV；Compound representated by (5) 0~30% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 8~60% general formula I；Compound representated by (2) 8~35% general formula II；(3) 10~55%
Compound representated by general formula III；Compound representated by (4) 0~35% general formula IV；Representated by (5) 0~20% general formula V
Compound.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 10~57% general formula I institute's generations
The compound of table；Compound representated by (2) 10~30% general formula II；Compound representated by (3) 13~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；Compound representated by (5) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 30~60% general formula I；Compound representated by (2) 8~35% general formula II；(3) 10~
Compound representated by 55% general formula III；Compound representated by (4) 0~20% general formula IV；(5) 0~20% general formula V institute's generations
The compound of table.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 30~57% general formula I institute's generations
The compound of table；Compound representated by (2) 10~30% general formula II；Compound representated by (3) 13~50% general formula IIIs；
Compound representated by (4) 0~17% general formula IV；Compound representated by (5) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 5~40% general formula I；Compound representated by (2) 8~35% general formula II；(3) 15~55%
Compound representated by general formula III；Compound representated by (4) 0~35% general formula IV；Representated by (5) 0~20% general formula V
Compound.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 10~40% general formula I institute's generations
The compound of table；Compound representated by (2) 10~29% general formula II；Compound representated by (3) 19~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；Compound representated by (5) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 5~65% general formula I；Compound representated by (2) 8~35% general formula II；(3) 25~55%
Compound representated by general formula III；Compound representated by (4) 0~35% general formula IV；Representated by (5) 0~20% general formula V
Compound.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 10~57% general formula I institute's generations
The compound of table；Compound representated by (2) 10~30% general formula II；Compound representated by (3) 25~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；Compound representated by (5) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 20~65% general formula I；Compound representated by (2) 10~35% general formula II；(3) 10~
Compound representated by 35% general formula III；Compound representated by (4) 0~27% general formula IV；(5) 0~20% general formula V institute's generations
The compound of table.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 26~57% general formula I institute's generations
The compound of table；Compound representated by (2) 13~30% general formula II；Compound representated by (3) 13~35% general formula IIIs；
Compound representated by (4) 0~24% general formula IV；Compound representated by (5) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 35~65% general formula I；Compound representated by (2) 10~35% general formula II；(3) 10~
Compound representated by 40% general formula III；Compound representated by (4) 0~20% general formula V.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 38~57% general formula I institute's generations
The compound of table；Compound representated by (2) 13~30% general formula II；Compound representated by (3) 13~36% general formula IIIs；
Compound representated by (4) 0~15% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 8~50% general formula I；Compound representated by (2) 8~35% general formula II；(3) 15~55%
Compound representated by general formula III；Compound representated by (4) 1~35% general formula IV；Representated by (5) 0~12% general formula V
Compound.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 10~47% general formula I institute's generations
The compound of table；Compound representated by (2) 10~29% general formula II；Compound representated by (3) 19~53% general formula IIIs；
Compound representated by (4) 3~30% general formula IV；Compound representated by (5) 0~9% general formula V.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 35~65% general formula I；Compound representated by (2) 8~35% general formula II；(3) 15~
Compound representated by 40% general formula III.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 40~57% general formula I institute's generations
The compound of table；Compound representated by (2) 13~30% general formula II；Compound representated by (3) 19~36% general formula IIIs.
Liquid-crystal composition provided by the present invention, it is further proposed that, the liquid-crystal composition includes following weight percent
Component：Compound representated by (1) 1~35% general formula IA；Compound representated by (2) 5~35% general formula IB；(3) 8~35%
Compound representated by general formula II；Compound representated by (4) 10~55% general formula IIIs；Representated by (5) 0~25% general formula IV
Compound；Compound representated by (6) 0~20% general formula V.
Preferably, include following components in percentage by weight in the liquid-crystal composition：(1) 2~33% general formula IA institute's generations
The compound of table；Compound representated by (2) 7~29% general formula IB；Compound representated by (3) 10~29% general formula II；(4)
Compound representated by 13~53% general formula IIIs；Compound representated by (5) 0~20% general formula IV；(6) 0~15% general formula V
Representative compound.
As the preferred embodiment of the present invention, the liquid-crystal composition includes following components in percentage by weight：
Compound representated by (1) 10~57% general formula I；Preferably, contain at least one in the compound that general formula I is represented
The compound that general formula IA or IB are represented, or represented containing at least one general formula IA compounds represented and at least one general formula IB
Compound, or containing at least one general formula IA represent compound, at least one general formula IB represent compound and at least one
The compound that general formula IC is represented；Compound representated by (2) 10~30% general formula II；Representated by (3) 13~53% general formula IIIs
Compound；Compound representated by (4) 0~30% general formula IV；Compound representated by (5) 0~15% general formula V.
Or, including following components in percentage by weight in the liquid-crystal composition：Representated by (1) 40~57% general formula I
Compound；Preferably, the compound represented containing at least one general formula IA in the compound that general formula I is represented, or contain at least one
The compound that the compound and at least one general formula IB that kind general formula IA is represented represent；It is highly preferred that in the compound that general formula I is represented
The compound that IB containing the IA for accounting for the total composition 20~56% compounds represented and 0~29% is represented；(2) 19~
Compound representated by 30% general formula II；Compound representated by (3) 19~36% general formula IIIs.
Or, including following components in percentage by weight in the liquid-crystal composition：Representated by (1) 10~42% general formula I
Compound；Preferably, the compound represented containing at least one general formula IA or IB in the compound that general formula I is represented, or containing extremely
The compound that the compound and at least one general formula IB that a kind of few general formula IA is represented represent, or represented containing at least one general formula IA
Compound, at least one general formula IB represent compound and at least one general formula IC represent compound；It is highly preferred that general formula
Contain the IB representatives of the compound, 0~22% that account for the IA of the total composition 0~42% and represent in the compound that I is represented
Compound and 0~4% IC represent compound；Compound representated by (2) 10~29% general formula II；(3) 19~53% is logical
Compound representated by formula III；Compound representated by (4) 3~30% general formula IV.
Or, including following components in percentage by weight in the liquid-crystal composition：Representated by (1) 38~57% general formula I
Compound；Preferably, the compound represented containing at least one general formula IA in the compound that general formula I is represented, or contain at least one
The compound that the compound and at least one general formula IB that kind general formula IA is represented represent, or the change containing at least one general formula IA representatives
Close object, the compound that at least one general formula IB is represented and the compound that at least one general formula IC is represented；It is highly preferred that general formula I generations
Contain the change for accounting for the compound of IA representatives of the total composition 13~45%, 0~26% IB is represented in the compound of table
Close object and 0~14% IC represent compound；Compound representated by (2) 15~24% general formula II；(3) 13~32% general formulas
Compound representated by III；Compound representated by (4) 5~15% general formula V.
Or, including following components in percentage by weight in the liquid-crystal composition：Representated by (1) 37~46.5% general formula I
Compound；Preferably, the compound represented containing at least one general formula IA in the compound that general formula I is represented, or containing at least
A kind of compound that general formula IA is represented and the compound that at least one general formula IB is represented；It is highly preferred that the compound that general formula I is represented
In containing account for the total composition 23~43% IA represent compound and 0~19.5% IB represent compound；(2)
Compound representated by 10~21% general formula II；Compound representated by (3) 22~38% general formula IIIs；(4) 4~9% general formula IV
Representative compound；Compound representated by (5) 8~9% general formula V.
Compound representated by the provided liquid-crystal composition formula of I of invention is the chemical combination for containing 2,3- difluorobenzene structures
Object, such compound have larger negative dielectric anisotropic and high clearing point；Compound representated by general formula II have compared with
Big negative dielectric anisotropic and excellent intersolubility；Compound representated by general formula III is twin nuclei, has low rotation
Viscosity and excellent intersolubility feature, are the essential components of fast-response liquid crystal display, and the compound representated by general formula IV is
Nonpolar tricyclic compound, such monomer have high clearing point and big elastic constant, are conducive to improve liquid-crystal composition
Elastic constant；Compound representated by general formula V has big optical anisotropy, for promoted the dielectric of liquid-crystal composition respectively to
It is anisotropic highly effective.
Conventional method can be used, by two or more without specifically limited in the preparation method of liquid-crystal composition of the present invention
Compound mixing is produced.For example, mixing each component compound under the high temperature conditions, it is prepared into using the method being soluble in one another
To liquid-crystal composition；Or each component compound is dissolved in the solvent for the compound, and mix, then in decompression item
The solvent is distilled out under part；Or at a higher temperature, that the less component composition of wherein content is dissolved in content is more
Key component compound in；Or dissolve each component compound in organic solvent, it is then again that solution mixing removal is molten
Agent obtains liquid-crystal composition, which can be acetone, chloroform or methanol etc..
Liquid-crystal composition provided by the present invention has low rotary viscosity and good low temperature intersolubility, is suitable for
The VA such as VA/MVA/PVA/PSVA class displays and IPS, FFS liquid crystal display, especially to improving the liquid crystal display response time
It is highly effective, promote the display effect of liquid crystal display.
Specific implementation mode
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Unless otherwise indicated, percentage is weight percentage in the present invention；Temperature unit is degree Celsius；Δ n represents optics
Anisotropy (25 DEG C)；Δ ε represents dielectric anisotropy (25 DEG C, 1000Hz)；V10Threshold voltage is represented, is in relative permeability
Character voltage (V, 25 DEG C) when changing 10%；γ 1 represents rotary viscosity (mPa.s, 25 DEG C)；Cp represents the clear of liquid-crystal composition
Bright spot (DEG C)；K11、K22、K33Respectively represent splay, distortion and bend elastic constant (pN, 25 DEG C).
In following embodiment, unit structure code shown in table 1 indicates in liquid-crystal compounds.
Table 1：The group structure code of liquid-crystal compounds
By taking following compound structure as an example：
It is expressed as 3CWO1F；It is expressed as
3PGIWO2。
In following embodiment, the preparation of liquid-crystal composition is all made of heat of solution method, includes the following steps：It is pressed with balance
Weight percent weighs liquid-crystal compounds, wherein weighing addition sequence without particular requirement, usually with liquid-crystal compounds fusing point by height
Mixing is weighed successively to low sequence, heating stirring makes each component melt uniform at 60~100 DEG C, using filter, rotates,
It finally encapsulates up to target sample.
In following embodiment, the performance parameter of the weight percent of each component when liquid-crystal composition is shown in liquid-crystal composition
Following table.
Embodiment 1
Table 2：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 2
Table 3：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 3
Table 4：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 4
Table 5：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 5
Table 6：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 6
Table 7：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 7
Table 8：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 8
Table 9：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 9
Table 10：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 10
Table 11：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 11
Table 12：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 12
Table 13：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 13
Table 14：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 14
Table 15：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 15
Table 16：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 16
Table 17：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 17
Table 18：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 18
Table 19：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 19
Table 20：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 20
Table 21：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 21
Table 22：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 22
Table 23：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 23
Table 24：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 24
Table 25：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 25
Table 26：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 26
Table 27：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 27
Table 28：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 28
Table 29：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 29
Table 30：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 30
Table 31：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 31
Table 32：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 32
Table 33：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 33
Table 34：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 34
Table 35：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 35
Table 36：The percentage of each component when performance parameter in liquid-crystal composition
Embodiment 36
Table 37：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 37
Table 38：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 38
Table 39：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 39
Table 40：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 40
Table 41：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 41
Table 42：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 42
Table 43：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 43
Table 44：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 44
Table 45：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 45
Table 46：The weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 46
Table 47：The weight percent of each component when performance parameter in liquid-crystal composition
Comparative example 1
Table 48：The weight percent of each component when performance parameter in liquid-crystal composition
Compared with embodiment 1 is summarized with each performance parameter value of 1 gained liquid-crystal composition of comparative example, referring to table 49.
Table 49：The performance parameter of liquid-crystal composition compares
| Δn | Δε | Cp | γ1 | K11 | K22 | K33 | |
| Embodiment 1 | 0.110 | -4.0 | 91 | 87 | 15.2 | 7.6 | 16.6 |
| Comparative example 1 | 0.108 | -3.8 | 90 | 96 | 14.7 | 7.4 | 16.5 |
Known to relatively：Compared with comparative example 1, the liquid-crystal composition that embodiment 1 provides has low rotary viscosity, that is, has
There is the faster response time.
As seen from the above embodiment, liquid-crystal composition provided by the present invention has low viscosity, high resistivity, suitable light
Anisotropy, good low temperature intersolubility, big elastic constant and excellent photostability and thermal stability are learned, liquid can be reduced
The response time of crystal display, to solve the problems, such as that liquid crystal display response speed is slow.Therefore, liquid crystal provided by the present invention
Composition is suitable for VA display patterns and IPS the and FFS type TFT liquid crystal display devices such as VA/MVA/PVA/PSVA.
Although above having used general explanation, specific implementation mode and experiment, the present invention is made to retouch in detail
It states, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Range.
Claims (10)
1. a kind of liquid-crystal composition, which is characterized in that comprising at least one or more of compounds of formula I and one or more
Compounds of formula II；
The general formula I is specially：
In the general formula I, R1Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；
Ring A1Selected from lower structure：
The general formula II is specially：
In the general formula II, R3Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；Ring A2It represents
Trans- 1,4- cyclohexyl, 1,4- phenylenes；The integer that n is 1~6.
2. liquid-crystal composition according to claim 1, which is characterized in that the compounds of formula I is Formulas I A~IE institutes
Show the one or more of structure：
In the Formulas I A~IE, R1Represent C1~C7Straight chained alkyl, C2~C7Straight-chain alkenyl；R2Represent C1~C7Straight chain alkane
Base, unbranched alkoxy；
Preferably, in the Formulas I A~IE, R1Represent C2~C5Straight chained alkyl；R2Represent C1~C4Straight chained alkyl or straight chain alkane
Oxygroup；
It is highly preferred that compound representated by the general formula I be selected from Formulas I A1~IA24, Formulas I B1~IB24, Formulas I C1~IC24,
The one or more of compound representated by Formulas I D1~ID24 or Formulas I E1~IE24：
3. liquid-crystal composition according to claim 1 or 2, which is characterized in that the compounds of formula II be Formula II A~
Structure shown in IIB it is one or more：
In the Formula II A~IIB, R3Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；The integer that n is 1~5；
Preferably, in the Formula II A~IIB, R3Represent C2~C5Straight chained alkyl or C2~C5Straight-chain alkenyl；
It is highly preferred that one kind in Formula II A1~IIA16 and IIB1~IIB16 of the compound representated by the general formula II or
It is a variety of：
4. according to the liquid-crystal composition described in claims 1 to 3 any one, which is characterized in that also include one or more logical
The compound of formula III；The general formula III is specially：
In the general formula III, R4、R5C is represented each independently1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight chain
Alkenyl；Ring A3, ring A4Trans- 1,4- cyclohexyl or 1,4 phenylenes are represented each independently；
Preferably, the compounds of formula III is the one or more of structure shown in formula III A~IIIC：
In the formula III A~IIIC, R4Represent C1~C7Straight chained alkyl；R5Represent C1~C7Straight chained alkyl, unbranched alkoxy
Or C2~C7Straight-chain alkenyl；
It is highly preferred that in the formula III A~IIIC, R4Represent C2~C5Straight chained alkyl；R5Represent C2~C5Straight chained alkyl,
Unbranched alkoxy or C2~C5Straight-chain alkenyl；
It is further preferred that the compound that the general formula III represents be selected from formula III A1~IIIA34, IIIB1~IIIB24 and
It is one or more in IIIC1~IIIB24：
5. according to the liquid-crystal composition described in Claims 1 to 4 any one, which is characterized in that further include in the composition
The compound of one or more general formula IV and/or one or more general formula V structures；
The concrete structure of the general formula IV is：
In the general formula IV, R6、R7C is represented each independently1~C12Straight chained alkyl, wherein one or more non-conterminous CH2
It can be replaced by O or CH=CH；
Ring A5Selected from lower structure：
The concrete structure of the general formula V is：
In the general formula V, R8Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；R9Represent F, C1~C12Straight chain
Alkyl, unbranched alkoxy C2~C12Straight-chain alkenyl；L1、L2、L3H or F is represented each independently.
6. liquid-crystal composition according to claim 5, which is characterized in that the structural compounds of the general formula IV are selected from formula
Structure is one or more shown in IVA~formula IV C：
In the general formula IVA~formula IV C, R6Represent C2~C10Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C8Straight chain alkane
Base；
Preferably, in the general formula IVA~formula IV C, R6Represent C2~C5Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C5's
Straight chained alkyl；
It is highly preferred that the compound of the Formula IVIV be selected from formula IV A1~IVA18, formula IV B1~IVB22 and formula IV C1~
It is one or more in structure shown in IVC20：
7. liquid-crystal composition according to claim 5, which is characterized in that the compounds of formula V is selected from Formula V A~VD
With one or more in lower structure；
In the Formula V A~VD, R8Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl, R9Represent C1~C7Straight chain alkane
Base, unbranched alkoxy or C2~C7Straight-chain alkenyl；
Preferably, in the Formula V A~VD, R8Represent C2~C5Straight chained alkyl or C2~C4Straight-chain alkenyl, R9Represent C1~C5
Straight chained alkyl, unbranched alkoxy or C2~C4Straight-chain alkenyl；
It is highly preferred that compound representated by general formula V be selected from Formula V A1~VA4, VB1~VB24, VDC1~VC14 and VD1~
It is one or more in VD24：
8. according to claim 1~7 any one of them liquid-crystal composition, which is characterized in that include in the liquid-crystal composition
Following components in percentage by weight：
Compound representated by (1) 5~70% general formula I；
Compound representated by (2) 5~40% general formula II；
Compound representated by (3) 5~65% general formula IIIs；
Compound representated by (4) 0~45% general formula IV；
Compound representated by (5) 0~30% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 8~60% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 10~55% general formula IIIs；
Compound representated by (4) 0~35% general formula IV；
Compound representated by (5) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 10~57% general formula I；
Compound representated by (2) 10~30% general formula II；
Compound representated by (3) 13~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 30~60% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 10~55% general formula IIIs；
Compound representated by (4) 0~20% general formula IV；
Compound representated by (5) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 30~57% general formula I；
Compound representated by (2) 10~30% general formula II；
Compound representated by (3) 13~50% general formula IIIs；
Compound representated by (4) 0~17% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 5~40% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 15~55% general formula IIIs；
Compound representated by (4) 0~35% general formula IV；
Compound representated by (5) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 10~40% general formula I；
Compound representated by (2) 10~29% general formula II；
Compound representated by (3) 19~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 5~65% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 25~55% general formula IIIs；
Compound representated by (4) 0~35% general formula IV；
Compound representated by (5) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 10~57% general formula I；
Compound representated by (2) 10~30% general formula II；
Compound representated by (3) 25~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 20~65% general formula I；
Compound representated by (2) 10~35% general formula II；
Compound representated by (3) 10~35% general formula IIIs；
Compound representated by (4) 0~27% general formula IV；
Compound representated by (5) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 26~57% general formula I；
Compound representated by (2) 13~30% general formula II；
Compound representated by (3) 13~35% general formula IIIs；
Compound representated by (4) 0~24% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 35~65% general formula I；
Compound representated by (2) 10~35% general formula II；
Compound representated by (3) 10~40% general formula IIIs；
Compound representated by (4) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 38~57% general formula I；
Compound representated by (2) 13~30% general formula II；
Compound representated by (3) 13~36% general formula IIIs；
Compound representated by (4) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 8~50% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 15~55% general formula IIIs；
Compound representated by (4) 1~35% general formula IV；
Compound representated by (5) 0~12% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 10~47% general formula I；
Compound representated by (2) 10~29% general formula II；
Compound representated by (3) 19~53% general formula IIIs；
Compound representated by (4) 3~30% general formula IV；
Compound representated by (5) 0~9% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 35~65% general formula I；
Compound representated by (2) 8~35% general formula II；
Compound representated by (3) 15~40% general formula IIIs.
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 40~57% general formula I；
Compound representated by (2) 13~30% general formula II；
Compound representated by (3) 19~36% general formula IIIs；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 1~35% general formula IA；
Compound representated by (2) 5~35% general formula IB；
Compound representated by (3) 8~35% general formula II；
Compound representated by (4) 10~55% general formula IIIs；
Compound representated by (5) 0~25% general formula IV；
Compound representated by (6) 0~20% general formula V；
Preferably, include following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 2~33% general formula IA；
Compound representated by (2) 7~29% general formula IB；
Compound representated by (3) 10~29% general formula II；
Compound representated by (4) 13~53% general formula IIIs；
Compound representated by (5) 0~20% general formula IV；
Compound representated by (6) 0~15% general formula V.
9. liquid-crystal composition according to claim 8, which is characterized in that include following weight hundred in the liquid-crystal composition
Divide the component of ratio：
Compound representated by (1) 10~57% general formula I；Preferably, at least one general formula is contained in the compound that general formula I is represented
The compound that IA or IB is represented, or the chemical combination containing at least one general formula IA compounds represented and at least one general formula IB representatives
Object, or the compound of the compound containing at least one general formula IA representatives, at least one general formula IB representative and at least one general formula
The compound that IC is represented；It is highly preferred that containing the IA generations for accounting for the total composition 0~56% in the compound that general formula I is represented
The compound of table, 0~29% IB represent compound and 0~14% IC represent compound；
Compound representated by (2) 10~30% general formula II；
Compound representated by (3) 13~53% general formula IIIs；
Compound representated by (4) 0~30% general formula IV；
Compound representated by (5) 0~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 40~57% general formula I；Preferably, at least one general formula is contained in the compound that general formula I is represented
The compound that IA is represented, or the compound containing at least one general formula IA compounds represented and at least one general formula IB representatives；
It is highly preferred that in the compound that general formula I is represented containing the IA for accounting for the total composition 20~56% compounds represented and 0~
The compound that 29% IB is represented；
Compound representated by (2) 19~30% general formula II；
Compound representated by (3) 19~36% general formula IIIs；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 10~42% general formula I；Preferably, at least one general formula is contained in the compound that general formula I is represented
The compound that IA or IB is represented, or the chemical combination containing at least one general formula IA compounds represented and at least one general formula IB representatives
Object, or the compound of the compound containing at least one general formula IA representatives, at least one general formula IB representative and at least one general formula
The compound that IC is represented；It is highly preferred that containing the IA generations for accounting for the total composition 0~42% in the compound that general formula I is represented
The compound of table, 0~22% IB represent compound and 0~4% IC represent compound；
Compound representated by (2) 10~29% general formula II；
Compound representated by (3) 19~53% general formula IIIs；
Compound representated by (4) 3~30% general formula IV；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 38~57% general formula I；Preferably, at least one general formula is contained in the compound that general formula I is represented
The compound that IA is represented, or the compound containing at least one general formula IA compounds represented and at least one general formula IB representatives,
Or compound, the compound of at least one general formula IB representatives and at least one general formula IC generations represented containing at least one general formula IA
The compound of table；It is highly preferred that represented containing the IA for accounting for the total composition 13~45% in the compound that general formula I is represented
Compound, 0~26% IB represent compound and 0~14% IC represent compound；
Compound representated by (2) 15~24% general formula II；
Compound representated by (3) 13~32% general formula IIIs；
Compound representated by (4) 5~15% general formula V；
Or, including following components in percentage by weight in the liquid-crystal composition：
Compound representated by (1) 37~46.5% general formula I；Preferably, containing at least one logical in the compound that general formula I is represented
The compound that Formulas I A is represented, or the chemical combination containing at least one general formula IA compounds represented and at least one general formula IB representatives
Object；It is highly preferred that in the compound that general formula I is represented containing the IA for accounting for the total composition 23~43% compounds represented and
The compound that 0~19.5% IB is represented；
Compound representated by (2) 10~21% general formula II；
Compound representated by (3) 22~38% general formula IIIs；
Compound representated by (4) 4~9% general formula IV；
Compound representated by (5) 8~9% general formula V.
10. claim 1~9 any one of them liquid-crystal composition is applied in liquid crystal display；It is preferred that in fast-response liquid crystal
The application shown；Application more preferably in VAMVA/PVA/PSVA, IPS or FFS mode display.
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