CN107384442A - A kind of negative dielectric anisotropy liquid crystal composition and its application - Google Patents

A kind of negative dielectric anisotropy liquid crystal composition and its application Download PDF

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CN107384442A
CN107384442A CN201610323098.3A CN201610323098A CN107384442A CN 107384442 A CN107384442 A CN 107384442A CN 201610323098 A CN201610323098 A CN 201610323098A CN 107384442 A CN107384442 A CN 107384442A
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formula
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liquid
crystal composition
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CN107384442B (en
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陈卯先
储士红
王杰
未欣
陈海光
姜天孟
郭云鹏
袁瑾
伍嘉琦
苏学辉
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Beijing Bayi Space LCD Technology Co Ltd
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Abstract

The present invention relates to a kind of negative dielectric anisotropy liquid crystal composition comprising the compound for compound, the compound that at least one formula II is represented and the representative of at least one general formula III that at least one formula I is represented.Compound representated by the formula I is dicyclohexyl vinyl compound, and such compound has rotary viscosity and excellent intersolubility in the extreme；Compound representated by formula II is to have larger negative dielectric anisotropic and low rotary viscosity containing cyclohexenyl group and 2, the liquid-crystal compounds of 3 difluoro class formations, the class formation, can effectively lift the negative dielectric of liquid-crystal composition to anisotropy；For the compound that general formula III represents to contain the compound of 2,3 difluorobenzenes, such compound has larger negative dielectric anisotropic and excellent intersolubility.The present invention is made gained liquid-crystal composition have low rotary viscosity, can be effectively reduced the response time of liquid crystal display, have excellent application effect by the synergy between each component.

Description

A kind of negative dielectric anisotropy liquid crystal composition and its application
Technical field
The present invention relates to a kind of liquid-crystal composition, specifically, liquid-crystal composition provided by the present invention have negative dielectric respectively to The opposite sex；More precisely, contain hexamethylene alkenes negative dielectric anisotropic compound in liquid-crystal composition provided by the present invention.
Background technology
At present, liquid crystal is widely applied in field of information display, while the application in optical communication is also achieved and certain entered Exhibition (S.T.Wu, D.K.Yang.Reflective Liquid Crystal Displays.Wiley, 2001).In recent years, LCD compound The application field of thing significantly widens kinds of displays part, electro-optical device, electronic component, sensor etc., nematic crystal Compound obtains most commonly used application in flat-panel monitor, particularly in the system of tft active matrix.
At present, negative liquid crystal is widely used in large-sized TV liquid crystal display, especially the appearance of PSVA technologies, is made It is more welcome to obtain negative liquid crystal；In recent years, the display of the mobile device such as mobile phone widely uses negative liquid crystal FFS displays, Because it has high transmitance, the energy that LCD backlight is consumed can be greatly reduced, lift the display matter of liquid crystal display Amount, extend the cruising time of mobile device.
Negative liquid crystal most proposes that it is mainly used in VA patterns earlier than the end of the eighties in last century, and its major advantage is contrast height, Major defect is that visual angle is small, and the response time is slow.As the technologies such as the development of Display Technique, 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 turns into the mobile device market mainstream, IPS and FFS The hard panel type display of class has inborn advantage, IPS and FFS class displays can both use positivity liquid crystal, can also use negativity Liquid crystal, due to bending electric field present in the class display, positivity liquid crystal arranges along electric field line direction, so as to cause molecule curved Song, and decline in transmitance；Negative liquid crystal arranges perpendicular to electric field line direction, thus transmitance can be substantially improved, and be current Lift transmitance, reduce backlight power consumption the best way.But response time problem existing for negative liquid crystal be currently encounter it is great Problem, using negative liquid crystal FFS displays relative to positivity liquid crystal FFS display response times slow 50% or more.Cause This, how to lift the response time of negative liquid crystal turns into current key problem.
Specifically, the response time of liquid crystal display depends on d2(wherein, d is thickness of liquid crystal layer to γ 1/Keff, and γ 1 revolves for liquid crystal Turn viscosity, Keff is effective elastic constant), therefore, rotary viscosity reduced, reduce thickness of liquid crystal layer and lift elastic constant and be equal Can reach improves the purpose of response time, and thickness of liquid crystal layer depends on the design of liquid crystal display；For liquid-crystal composition, drop Low rotary viscosity and thickness of liquid crystal are most effective.
The content of the invention
It is an object of the invention to provide a kind of negative dielectric anisotropy liquid crystal composition of fast-response, the liquid-crystal composition has low Rotary viscosity, the response time of liquid crystal display can be effectively reduced.
Specifically, in the negative dielectric anisotropy liquid crystal composition of fast-response provided by the invention, at least one formula I is included The compound that the compound and at least one general formula III that the compound of representative, at least one formula II are represented represent.
Compound representated by formula I of the present invention is dicyclohexyl vinyl compound, and there is such compound rotation in the extreme to glue Degree and excellent intersolubility.In liquid-crystal composition provided by the invention, preferably each liquid crystal components sum is 100%；Described in formula I The content of compound in the composition is preferably 1~60%, more preferably 10~40%, 24~50%, 20~40%, 24~40%, 10~27%, 13~27%, 10~35%, 13~31%, 15~45%, 19~40%, 13~37%, 13~35%, 20~35%, 27~35% or 20%.Specifically, the formula I is as follows：
In the formula I, R1Represent C1~C12Straight chained alkyl, R2Represent H or C1~C12Straight chained alkyl.
Preferably, one or more of the compound that formula I is represented in IA, IB:
In the IA and IB, R1Represent C1~C7Straight chained alkyl.
It is highly preferred that one or more of the compound of formula I representatives in IA1~IA4 or IB1~IB4：
Most preferably, one or more of the compound that formula I is represented in IA2, IB1, IB2.
Compound representated by formula II is to have containing cyclohexenyl group and 2, the liquid-crystal compounds of 3- difluoro class formations, the class formation Larger negative dielectric anisotropic and low rotary viscosity, the negative dielectric of liquid-crystal composition can be effectively lifted to anisotropy.The present invention In the liquid-crystal composition of offer, preferably each liquid crystal components sum is 100%；The content of compound in the composition is excellent described in formula II Elect 1~70%, more preferably 5~65% as, 10~56%, 12~65%, 17~57%, 40~65%, 40~57%, 5~45%, 10~40%, 5~60%, 20~65%, 26~57%, 15~60%, 17~57%, 10~57%, 43~57%, 5~55%, 10~49%, 56~57%, 17~40%, 38~40% or 17~32%.Specifically, the formula II is as follows：
In the formula II, R3Represent C1~C12Straight chained alkyl, R4Represent C1~C12Straight chained alkyl or unbranched alkoxy；n、 M represents 0 or 1 independently of one another, and is 0 during n with m differences；
Ring A1Represent：
Preferably, one or more of the formula II representation compounds in IIA~IID：
In the IIA~IID, R3Represent C1~C7Straight chained alkyl；R4Represent C1~C7Straight chained alkyl or unbranched alkoxy.
It is highly preferred that the compound that formula II is represented is selected from IIA1~IIA24, IIB1~IIB24, IIC1~IIC24 or IID1~IID24 In one or more：
Most preferably, formula II represent compound be selected from Formula II A1, IIA2, IIA9, IIA10, IIA13, IIA14, IIA15, IIA16、IIA18、IIB1、IIB2、IIB9、IIB10、IIB13、IIB14、IIB15、IIB16、IIB18、IIC1、IIC2、 One or more in IIC9, IIC10, IIC13, IIC14, IIC15, IID9, IID10, IID13, IID14.
For the compound that general formula III of the present invention represents to contain the compound of 2,3- difluorobenzenes, such compound has larger negative Jie Electrical anisotropy and excellent intersolubility.In liquid-crystal composition provided by the invention, preferably each liquid crystal components sum is 100%； The content of compound described in general formula III in the composition is preferably 1~40%, more preferably 5~35%, 10~65%, 15~29%, 10~30%, 15~26%, 5~35%, 10~29%, 5~20%, 10~20%, 20~36%, 20~29%, 5~30%, 5~24%, 10~29%, 15~24%, 20~24%, 10~19%, 10~15% or 17~19%.Specifically, the general formula III is specially：
In the general formula III, R5、R6C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight chain Alkenyl；The ring A2Represent trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.
Preferably, one or more of the compound that general formula III represents in IIIA, IIIB：
In described IIIA, IIIB, R5Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R6Represent C1~C7Straight chain alkane Epoxide.
It is highly preferred that one or more of the compound of general formula III representative in IIIA1~IIIA24, IIIB~IIIB24：
Most preferably, general formula III represent compound be selected from IIIA6, IIIA8, IIIA14, IIIB2, IIIB6, IIIB7, IIIB8, One or more in IIIB19.
Liquid-crystal composition provided by the present invention can also include one or more compounds of formula IV.It is provided by the present invention logical The compound of formula IV is terphenyl structure class compound, and such compound has very big optical anisotropy, can effectively carried Rise the optical anisotropy of liquid-crystal composition.When compound containing Formula IVIV in the composition, it is in the composition Content be 0~40%, preferably 0~15%, 0~11%, 0~20%, 0~24%, 0~30%, 0~15% or 0~8% are more excellent Elect 1~30%, 5~24%, 5~11%, 9~24%, 9~15% or 23~24% as.Specifically, the formula IV is specially：
In the formula IV, R7、R8C is represented independently of one another1~C12Straight chained alkyl or unbranched alkoxy；L1、L2、L3 H or F is represented independently of one another.
Preferably, one or more of the Formula IVIV compound in IVA, IVB：
In described IVA, IVB, R7Represent C1~C7Straight chained alkyl；R8Represent C1~C7Straight chained alkyl or unbranched alkoxy.
It is highly preferred that one or more of the compound of Formula IVIV in IVA1~IVA14, IVB1~IVB24：
Most preferably, compounds of formula IV is selected from IVA3, IVA4, IVA6, IVB2, IVB10, IVB14, IVB22 In one or more.
Liquid-crystal composition provided by the present invention, which also wraps, can contain one or more compounds of formula V.It is provided by the present invention logical The compound of Formula V is two rings or tricyclic structure neutral compound, and the class formation has relatively low rotary viscosity, wherein tricyclic antidepressants Compound also has higher clearing point.When the compound represented in the composition containing formula V, its containing in the composition Measure as 0~60%, preferably 0~45%, 0~40%, 0~30%, 0~22%, 0~24%, 0~25%, 0~10%, 0~7%, 0~45%, more preferably 1~45%, 3~40%, 3~22%, 3~7% or 6~22%.The formula V is specially：
In the formula V, R9Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；R10Represent C1~C12Straight chain alkane Base or unbranched alkoxy；X=0 or 1；Ring A3Represent trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.
Preferably, one or more of the compound representated by formula V in VA~VD：
In the VA~VD, R9Represent C2~C7Straight chained alkyl or straight-chain alkenyl, R10Represent C1~C7Straight chained alkyl or straight chain Alkenyl.
It is highly preferred that the compound that formula V is represented is selected from VA1~VA16, VB1~VB24, VC1~VC18, VD1~VD20 In one or more：
Most preferably, formula V represent compound be selected from VA10, VA14, VB2, VB4, VB15, VB20, VC2, One or more in VC6, VC10, VC13, VC16, VD2, VD6, VD8, VD15, VD17.
In order that liquid-crystal composition meets the needs of different, liquid-crystal composition provided by the present invention includes following mass percent Component：
(1), the compound representated by 1~60% formula I；
(2), the compound representated by 1~70% formula II；
(3), the compound representated by 1~40% general formula III；
(4), the compound representated by 0~40% formula IV；
(5), the compound representated by 0~60% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 24~50% formula I；
(2), the compound representated by 5~65% formula II；
(3), the compound representated by 5~35% general formula III；
(4), the compound representated by 0~20% formula IV；
(5), the compound representated by 0~45% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 24~40% formula I；
(2), the compound representated by 10~56% formula II；
(3), the compound representated by 10~29% general formula III；
(4), the compound representated by 0~15% formula IV；
(5), the compound representated by 0~40% formula V；
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 10~27% formula I；
(2), the compound representated by 12~65% formula II；
(3), the compound representated by 10~65% general formula III；
(4), the compound representated by 0~30% formula IV；
(5), the compound representated by 0~30% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 13~27% formula I；
(2), the compound representated by 17~57% formula II；
(3), the compound representated by 15~29% general formula III；
(4), the compound representated by 0~24% formula IV；
(5), the compound representated by 0~24% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 10~35% formula I；
(2), the compound representated by 40~65% formula II；
(3), the compound representated by 10~30% general formula III；
(4), the compound representated by 0~20% formula IV；
(5), the compound representated by 0~10% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 13~31% formula I；
(2), the compound representated by 40~57% formula II；
(3), the compound representated by 15~26% general formula III；
(4), the compound representated by 0~15% formula IV；
(5), the compound representated by 0~7% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 15~45% formula I；
(2), the compound representated by 5~45% formula II；
(3), the compound representated by 5~35% general formula III；
(4), the compound representated by 0~30% formula IV；
(5), the compound representated by 1~45% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 19~40% formula I；
(2), the compound representated by 10~40% formula II；
(3), the compound representated by 10~29% general formula III；
(4), the compound representated by 0~24% formula IV；
(5), the compound representated by 3~40% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 15~45% formula I；
(2), the compound representated by 5~60% formula II；
(3), the compound representated by 5~20% general formula III；
(4), the compound representated by 0~30% formula IV；
(5), the compound representated by 0~45% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 20~40% formula I；
(2), the compound representated by 10~56% formula II；
(3), the compound representated by 10~20% general formula III；
(4), the compound representated by 0~24% formula IV；
(5), the compound representated by 0~40% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 10~40% formula I；
(2), the compound representated by 20~65% formula II；
(3), the compound representated by 20~36% general formula III；
(4), the compound representated by 0~10% formula IV；
(5), the compound representated by 0~30% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 13~37% formula I；
(2), the compound representated by 26~57% formula II；
(3), the compound representated by 20~29% general formula III；
(4), the compound representated by 0~8% formula IV；
(5), the compound representated by 0~24% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 10~40% formula I；
(2), the compound representated by 15~60% formula II；
(3), the compound representated by 5~30% general formula III；
(4), the compound representated by 1~30% formula IV；
(5), the compound representated by 0~25% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 13~35% formula I；
(2), the compound representated by 17~57% formula II；
(3), the compound representated by 10~24% general formula III；
(4), the compound representated by 5~24% formula IV；
(5), the compound representated by 0~22% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 15~45% formula I；
(2), the compound representated by 5~65% formula II；
(3), the compound representated by 5~35% general formula III；
(4), the compound representated by 0~45% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 19~40% formula I；
(2), the compound representated by 10~57% formula II；
(3), the compound representated by 10~29% general formula III；
(4), the compound representated by 0~40% formula V.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 10~35% formula I；
(2), the compound representated by 40~65% formula II；
(3), the compound representated by 10~30% general formula III；
(4), the compound representated by 0~15% formula IV.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 13~31% formula I；
(2), the compound representated by 43~57% formula II；
(3), the compound representated by 15~24% general formula III；
(4), the compound representated by 0~11% formula IV.
It is further preferred that the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 13~31% formula I；
(2), the compound representated by 43~57% formula II；
(3), the compound representated by 15~24% general formula III；
(4), the compound representated by 5~11% formula IV.
Preferably, liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 15~45% formula I；
(2), the compound representated by 5~55% formula II；
(3), the compound representated by 5~35% general formula III；
(4), the compound representated by 0~30% formula IV；
(5), the compound representated by 1~45% formula V.
It is highly preferred that liquid-crystal compounds provided by the present invention includes the component of following mass percent：
(1), the compound representated by 19~40% formula I；
(2), the compound representated by 10~49% formula II；
(3), the compound representated by 10~29% general formula III；
(4), the compound representated by 0~24% formula IV；
(5), the compound representated by 3~40% formula V.
It is further preferred that the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 19~40% formula I；
(2), the compound representated by 10~49% formula II；
(3), the compound representated by 10~29% general formula III；
(4), the compound representated by 3~40% formula V.
Or, the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 19~24% formula I；
(2), the compound representated by 56~57% formula II；
(3), the compound representated by 20~24% general formula III.
Or, the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 20~35% formula I；
(2), the compound representated by 17~40% formula II；
(3), the compound representated by 10~19% general formula III；
(4), the compound representated by 9~24% formula IV；
(5), the compound representated by 3~22% formula V；
Preferably, the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 27~35% formula I；
(2), the compound representated by 38~40% formula II；
(3), the compound representated by 10~15% general formula III；
(4), the compound representated by 9~15% formula IV；
(5), the compound representated by 3~7% formula V；
Preferably, the liquid-crystal composition includes the component of following mass percent：
(1), the compound representated by 20% formula I；
(2), the compound representated by 17~32% formula II；
(3), the compound representated by 17~19% general formula III；
(4), the compound representated by 23~24% formula IV；
(5), the compound representated by 6~22% formula V.
The percentage sum of preferably each component of the invention is 100%.
The preparation method of liquid-crystal composition of the present invention can be mixed two or more compounds using conventional method without specifically limited Conjunction is produced, such as by mixing different component and method soluble in one another preparation at high temperature, wherein, liquid-crystal composition is molten Solution is in the solvent for the compound and mixes, and then distills out the solvent under reduced pressure；Or liquid crystal combination of the present invention Thing can be prepared conventionally, and the less component of wherein content is such as dissolved in into larger main of content at a higher temperature In component, or each affiliated component dissolved in organic solvent, such as acetone, chloroform or methanol, then solution is mixed and removed Obtained after solvent.
Liquid-crystal composition of the present invention has low rotary viscosity, available for the fast-response liquid crystal display of plurality of display modes, its Use in the VA such as VA, MVA, PVA, PSVA mode displays or IPS, FFS mode display can be obviously improved liquid crystal Display display effect.
The polymerizable compound that one or more formula VI are represented can also be added in liquid-crystal composition provided by the present invention.Specifically For, formula VI represents the addition of polymerizable compound as the 0.1~5%, preferably 0.2~1% of the liquid-crystal composition total amount, More preferably 0.3~0.5%.Specifically, formula VI is as follows：
In the formula VI, ring A4, ring A5Cyclohexyl, phenyl, halogenophenyl, the halogeno-benzene are represented independently of one another Base is preferably the phenyl that 1 hydrogen atom is substituted by F；Y represents 0,1 or 2, preferably 1 or 2；SP1、SP2Each solely On the spot represent polymerizable groups.
Preferably, one or more of the compound that formula VI is represented in VIA~VIF：
In the VIA~VIF, SP1、SP2Acrylate, methacrylate, butenoate or C are represented independently of one another2~C8 Straight-chain alkenyl.
It is highly preferred that formula VI represent polymerizable compound be selected from VIA1~VIA3, VIB1~VIB3, VIC1~VIC3, One or more in VID1~VID3, VIE1~VIE3, VIF1~VIF3：
Most preferably, one or more of the polymerizable compound that formula VI is represented in VIB2, VIC2, VID2, VIF2.
When adding the polymerizable compound in the liquid-crystal composition, the liquid-crystal composition is preferably by following mass percent Composition forms：
(1), the compound representated by 20% formula I；
(2), the compound representated by 17~32% formula II；
(3), the compound representated by 17~19% general formula III；
(4), the compound representated by 23~24% formula IV；
(5), the compound representated by 6~22% formula V.
After liquid-crystal composition of the present invention adds the polymerizable compound, threshold voltage reduces, and the response time accelerates, hence it is evident that Ground lifts the response time of liquid crystal display, is preferred for PSVA liquid crystal displays.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Unless otherwise indicated, percentage is weight percentage in the present invention；Temperature unit is degree Celsius；△ n represent optics respectively to Different in nature (25 DEG C)；ε∥And ε⊥Parallel and vertical dielectric constant (25 DEG C, 1000Hz) is represented respectively；△ ε represent dielectric respectively to different Property (25 DEG C, 1000Hz)；γ 1 represents rotary viscosity (mPa.s, 25 DEG C)；Cp represents the clearing point (DEG C) of liquid-crystal composition； K11、K22、K33Splay, distortion and bend elastic constant (pN, 25 DEG C) are represented respectively.
In following embodiment, unit structure code shown in table 1 represents 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：3CSWO2
It is expressed as：2PWP3
In following embodiment, the preparation of liquid-crystal composition uses heat of solution method, comprises the following steps：With balance by weight Percentage weighs liquid-crystal compounds, wherein addition sequence is weighed without particular requirement, generally with liquid-crystal compounds fusing point from high to low Order weighs mixing successively, and heating stirring causes each component to melt uniform then filtered, revolving at 60~100 DEG C, finally seals Fill and produce target sample.
In following embodiment, the performance parameter of the weight percent of each component when liquid-crystal composition sees below table in liquid-crystal composition Lattice.
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
Comparative example 1
Table 29：The weight percent of each component when performance parameter in liquid-crystal composition
Compared with embodiment 1 is collected with each performance parameter value of the gained liquid-crystal composition of comparative example 1, referring to table 30.
Table 30：The performance parameter of liquid-crystal composition compares
△n △ε 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
Through relatively understanding：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.
Embodiment 28
Table 31：The weight percent of each component when performance parameter in liquid-crystal composition
Polymerizable compound VIB2 is added in above-mentioned nematic liquid crystal by 0.5% mass percent, is configured to model PB28's PSVA mixtures.
Nematic liquid crystal and the PSVA mixtures PB28 are filled with standard VA testing cassetes, with UV (100mw/cm2) Apply and irradiated under 10V voltage two minutes, test pre-tilt angle, threshold voltage and response time respectively.Test result is shown in Table 32：
Table 32：Threshold voltage and response time test result
Project titl(°) V10(V) T(ms)
N28 89.5 2.71 15.1
PB28 82.0 2.28 6.2
Compared with corresponding nematic liquid crystal, there is the liquid-crystal compounds threshold voltage reduction after polymerisation of polymerizable compound, ring Accelerate between seasonable, it will be apparent that lift the response time of liquid crystal display.
Embodiment 29
Table 33：The weight percent of each component when performance parameter in liquid-crystal composition
Polymerizable compound VIC2 is added in above-mentioned nematic liquid crystal by 0.5% mass percent, is configured to model PC29's PSVA mixtures.
Nematic liquid crystal and PSVA mixtures PC27 are filled with standard VA testing cassetes, with UV (100mw/cm2) applying Irradiated under 10V voltage two minutes, test pre-tilt angle, threshold voltage and response time respectively.Test result is shown in Table 34：
Table 34：Threshold voltage and response time test result
Project titl(°) V10(V) T(ms)
N29 89.6 2.54 15.2
PC29 83.1 2.23 6.6
Compared with corresponding nematic liquid crystal, there is the liquid-crystal compounds threshold voltage reduction after polymerisation of polymerizable compound, ring Accelerate between seasonable, it will be apparent that lift the response time of liquid crystal display.
Embodiment 30
Table 35：The weight percent of each component when performance parameter in liquid-crystal composition
Polymerizable compound VIE2 is added in above-mentioned nematic liquid crystal by 0.3% mass percent, is configured to model PE30's PSVA mixtures.
Nematic liquid crystal and PSVA mixtures PE30 are filled with standard VA testing cassetes, with UV (100mw/cm2) applying Irradiated under 10V voltage two minutes, test pre-tilt angle, threshold voltage and response time respectively.Test result is shown in Table 36：
Table 36：Threshold voltage and response time test result
Compared with corresponding nematic liquid crystal, there is the liquid-crystal compounds threshold voltage reduction after polymerisation of polymerizable compound, ring Accelerate between seasonable, it will be apparent that lift the response time of liquid crystal display.
Negative dielectric anisotropy liquid crystal composition provided by the present invention has low rotary viscosity, high resistivity and excellent Photostability and heat endurance, suitable for the VA types liquid crystal display such as VA, MVA, PVA, PSVA or IPS and FFS type liquid Crystal display, it can effectively improve the response time of liquid crystal display.
Although above the present invention is described in detail with a general description of the specific embodiments, in the present invention On the basis of, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, not These modifications or improvements on the basis of deviation present invention spirit, belong to the scope of protection of present invention.

Claims (10)

  1. A kind of 1. negative dielectric anisotropy liquid crystal composition, it is characterised in that the compound comprising at least one formula I representatives, The compound that the compound and at least one general formula III that at least one formula II is represented represent；
    The formula I is as follows：
    In the formula I, R1Represent C1~C12Straight chained alkyl, R2Represent H or C1~C12Straight chained alkyl；
    The formula II is as follows：
    In the formula II, R3Represent C1~C12Straight chained alkyl, R4Represent C1~C12Straight chained alkyl or unbranched alkoxy；n、 M represents 0 or 1 independently of one another, and is 0 during n with m differences；
    Ring A1Represent：
    The general formula III is specially：
    In the general formula III, R5、R6C is represented independently of one another1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight chain Alkenyl；The ring A2Represent trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.
  2. 2. liquid-crystal composition according to claim 1, it is characterised in that the compound that formula I is represented is in IA, IB One or more:
    In described IA, IB, R1Represent C1~C7Straight chained alkyl；
    Preferably, one or more of the compound that formula I is represented in IA1~IA4 or IB1~IB4：
    It is highly preferred that one or more of the compound of formula I representatives in IA2, IB1, IB2.
  3. 3. liquid-crystal composition according to claim 1 or 2, it is characterised in that formula II representation compounds are selected from IIA~IID In one or more：
    In the IIA~IID, R3Represent C1~C7Straight chained alkyl；R4Represent C1~C7Straight chained alkyl or unbranched alkoxy；
    Preferably, the compound that formula II is represented is selected from IIA1~IIA24, IIB1~IIB24, IIC1~IIC24 or IID1~IID24 In one or more：
    It is highly preferred that formula II represent compound be selected from Formula II A1, IIA2, IIA9, IIA10, IIA13, IIA14, IIA15, IIA16、IIA18、IIB1、IIB2、IIB9、IIB10、IIB13、IIB14、IIB15、IIB16、IIB18、IIC1、IIC2、 One or more in IIC9, IIC10, IIC13, IIC14, IIC15, IID9, IID10, IID13, IID14.
  4. 4. according to the liquid-crystal composition described in claims 1 to 3 any one, it is characterised in that the compound choosing that general formula III represents From the one or more in IIIA, IIIB：
    In described IIIA, IIIB, R5Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R6Represent C1~C7Straight chain alkane Epoxide；
    Preferably, one or more of the compound that general formula III represents in IIIA1~IIIA24, IIIB~IIIB24：
    It is highly preferred that general formula III represent compound be selected from IIIA6, IIIA8, IIIA14, IIIB2, IIIB6, IIIB7, IIIB8, One or more in IIIB19.
  5. 5. according to the liquid-crystal composition described in Claims 1 to 4 any one, it is characterised in that in the liquid-crystal composition also Include the compound of one or more Formula IVIVs；The formula IV is specially：
    In the formula IV, R7、R8C is represented independently of one another1~C12Straight chained alkyl or unbranched alkoxy；L1、L2、L3 H or F is represented independently of one another；
    Preferably, one or more of the Formula IVIV compound in IVA, IVB：
    In described IVA, IVB, R7Represent C1~C7Straight chained alkyl；R8Represent C1~C7Straight chained alkyl or unbranched alkoxy；
    It is highly preferred that one or more of the compound of Formula IVIV in IVA1~IVA14, IVB1~IVB24：
    Most preferably, compounds of formula IV is selected from IVA3, IVA4, IVA6, IVB2, IVB10, IVB14, IVB22 In one or more.
  6. 6. according to the liquid-crystal compounds described in Claims 1 to 5 any one, it is characterised in that in the liquid-crystal composition also The compound represented comprising one or more formula V；The formula V is specially：
    In the formula V, R9Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；R10Represent C1~C12Straight chain alkane Base or unbranched alkoxy；X=0 or 1；Ring A3Represent trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
    Preferably, one or more of the compound representated by formula V in VA~VD：
    In the VA~VD, R9Represent C2~C7Straight chained alkyl or straight-chain alkenyl, R10Represent C1~C7Straight chained alkyl or straight chain Alkenyl；
    It is highly preferred that the compound that formula V is represented is selected from VA1~VA16, VB1~VB24, VC1~VC18, VD1~VD20 In one or more：
    Most preferably, formula V represent compound be selected from VA10, VA14, VB2, VB4, VB15, VB20, VC2, One or more in VC6, VC10, VC13, VC16, VD2, VD6, VD8, VD15, VD17.
  7. 7. according to the liquid-crystal composition described in claim 1~6 any one, it is characterised in that the liquid-crystal composition includes The component of following mass percent：
    (1), the compound representated by 1~60% formula I；
    (2), the compound representated by 1~70% formula II；
    (3), the compound representated by 1~40% general formula III；
    (4), the compound representated by 0~40% formula IV；
    (5), the compound representated by 0~60% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 24~50% formula I；
    (2), the compound representated by 5~65% formula II；
    (3), the compound representated by 5~35% general formula III；
    (4), the compound representated by 0~20% formula IV；
    (5), the compound representated by 0~45% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 24~40% formula I；
    (2), the compound representated by 10~56% formula II；
    (3), the compound representated by 10~29% general formula III；
    (4), the compound representated by 0~15% formula IV；
    (5), the compound representated by 0~40% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 10~27% formula I；
    (2), the compound representated by 12~65% formula II；
    (3), the compound representated by 10~65% general formula III；
    (4), the compound representated by 0~30% formula IV；
    (5), the compound representated by 0~30% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~27% formula I；
    (2), the compound representated by 17~57% formula II；
    (3), the compound representated by 15~29% general formula III；
    (4), the compound representated by 0~24% formula IV；
    (5), the compound representated by 0~24% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 10~35% formula I；
    (2), the compound representated by 40~65% formula II；
    (3), the compound representated by 10~30% general formula III；
    (4), the compound representated by 0~20% formula IV；
    (5), the compound representated by 0~10% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~31% formula I；
    (2), the compound representated by 40~57% formula II；
    (3), the compound representated by 15~26% general formula III；
    (4), the compound representated by 0~15% formula IV；
    (5), the compound representated by 0~7% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 15~45% formula I；
    (2), the compound representated by 5~45% formula II；
    (3), the compound representated by 5~35% general formula III；
    (4), the compound representated by 0~30% formula IV；
    (5), the compound representated by 1~45% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 19~40% formula I；
    (2), the compound representated by 10~40% formula II；
    (3), the compound representated by 10~29% general formula III；
    (4), the compound representated by 0~24% formula IV；
    (5), the compound representated by 3~40% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 15~45% formula I；
    (2), the compound representated by 5~60% formula II；
    (3), the compound representated by 5~20% general formula III；
    (4), the compound representated by 0~30% formula IV；
    (5), the compound representated by 0~45% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 20~40% formula I；
    (2), the compound representated by 10~56% formula II；
    (3), the compound representated by 10~20% general formula III；
    (4), the compound representated by 0~24% formula IV；
    (5), the compound representated by 0~40% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 10~40% formula I；
    (2), the compound representated by 20~65% formula II；
    (3), the compound representated by 20~36% general formula III；
    (4), the compound representated by 0~10% formula IV；
    (5), the compound representated by 0~30% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~37% formula I；
    (2), the compound representated by 26~57% formula II；
    (3), the compound representated by 20~29% general formula III；
    (4), the compound representated by 0~8% formula IV；
    (5), the compound representated by 0~24% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 10~40% formula I；
    (2), the compound representated by 15~60% formula II；
    (3), the compound representated by 5~30% general formula III；
    (4), the compound representated by 1~30% formula IV；
    (5), the compound representated by 0~25% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~35% formula I；
    (2), the compound representated by 17~57% formula II；
    (3), the compound representated by 10~24% general formula III；
    (4), the compound representated by 5~24% formula IV；
    (5), the compound representated by 0~22% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 15~45% formula I；
    (2), the compound representated by 5~65% formula II；
    (3), the compound representated by 5~35% general formula III；
    (4), the compound representated by 0~45% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 19~40% formula I；
    (2), the compound representated by 10~57% formula II；
    (3), the compound representated by 10~29% general formula III；
    (4), the compound representated by 0~40% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 10~35% formula I；
    (2), the compound representated by 40~65% formula II；
    (3), the compound representated by 10~30% general formula III；
    (4), the compound representated by 0~15% formula IV；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~31% formula I；
    (2), the compound representated by 43~57% formula II；
    (3), the compound representated by 15~24% general formula III；
    (4), the compound representated by 0~11% formula IV；
    It is further preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 13~31% formula I；
    (2), the compound representated by 43~57% formula II；
    (3), the compound representated by 15~24% general formula III；
    (4), the compound representated by 5~11% formula IV；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 15~45% formula I；
    (2), the compound representated by 5~55% formula II；
    (3), the compound representated by 5~35% general formula III；
    (4), the compound representated by 0~30% formula IV；
    (5), the compound representated by 1~45% formula V；
    It is highly preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 19~40% formula I；
    (2), the compound representated by 10~49% formula II；
    (3), the compound representated by 10~29% general formula III；
    (4), the compound representated by 0~24% formula IV；
    (5), the compound representated by 3~40% formula V；
    It is further preferred that the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 19~40% formula I；
    (2), the compound representated by 10~49% formula II；
    (3), the compound representated by 10~29% general formula III；
    (4), the compound representated by 3~40% formula V；
    Or, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 19~24% formula I；
    (2), the compound representated by 56~57% formula II；
    (3), the compound representated by 20~24% general formula III；
    Or, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 20~35% formula I；
    (2), the compound representated by 17~40% formula II；
    (3), the compound representated by 10~19% general formula III；
    (4), the compound representated by 9~24% formula IV；
    (5), the compound representated by 3~22% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 27~35% formula I；
    (2), the compound representated by 38~40% formula II；
    (3), the compound representated by 10~15% general formula III；
    (4), the compound representated by 9~15% formula IV；
    (5), the compound representated by 3~7% formula V；
    Preferably, the liquid-crystal composition includes the component of following mass percent：
    (1), the compound representated by 20% formula I；
    (2), the compound representated by 17~32% formula II；
    (3), the compound representated by 17~19% general formula III；
    (4), the compound representated by 23~24% formula IV；
    (5), the compound representated by 6~22% formula V.
  8. 8. according to the liquid-crystal composition described in claim 1~7 any one, it is characterised in that add in the liquid-crystal composition The polymerizable compound VI, the polymerizable compound VI added accounts for the liquid-crystal composition gross weight 0.1~5%, is preferably 0.2~1%, more preferably 0.3~0.5%；Formula VI is as follows：
    In the formula VI, ring A4, ring A5Cyclohexyl, phenyl, halogenophenyl are represented independently of one another；Y represents 0,1 Or 2；SP1、SP2Polymerizable groups are represented independently of one another；
    Preferably, one or more of the compound that formula VI is represented in VIA~VIF：
    In the VIA~VIF, SP1、SP2Acrylate, methacrylate, butenoate or C are represented independently of one another2~C8 Straight-chain alkenyl；
    It is highly preferred that formula VI represent polymerizable compound be selected from VIA1~VIA3, VIB1~VIB3, VIC1~VIC3, One or more in VID1~VID3, VIE1~VIE3, VIF1~VIF3：
    Most preferably, the one kind or more of the polymerizable compound that formula VI is represented in VIB2, VIC2, VID2, VIF2 Kind.
  9. 9. the application of liquid-crystal composition in a liquid crystal display described in claim 1~8 any one；The liquid crystal display is excellent Elect VA, MVA, PVA, PSVA, IPS or FFS mode display as.
  10. 10. application of the liquid-crystal composition described in claim 8 in PSVA mode LCDs.
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