CN107227158A - A kind of liquid-crystal composition and application - Google Patents

A kind of liquid-crystal composition and application Download PDF

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Publication number
CN107227158A
CN107227158A CN201610173141.2A CN201610173141A CN107227158A CN 107227158 A CN107227158 A CN 107227158A CN 201610173141 A CN201610173141 A CN 201610173141A CN 107227158 A CN107227158 A CN 107227158A
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China
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formula
compound representated
liquid
crystal composition
represent
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CN201610173141.2A
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Chinese (zh)
Inventor
陈卯先
储士红
王杰
未欣
陈海光
姜天孟
郭云鹏
袁瑾
伍嘉琦
田会强
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北京八亿时空液晶科技股份有限公司
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Priority to CN201610173141.2A priority Critical patent/CN107227158A/en
Publication of CN107227158A publication Critical patent/CN107227158A/en

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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/04Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06Non-steroidal liquid crystal compounds
    • C09K19/08Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
    • C09K2019/121Compounds containing phenylene-1,4-diyl (-Ph-)
    • C09K2019/122Ph-Ph

Abstract

The present invention provides a kind of liquid-crystal composition and application, the liquid-crystal composition includes at least one of compound representated by formula I, at least one of compound representated by formula II, at least one of compound representated by general formula III, at least one of compound representated by formula IV, liquid-crystal composition of the present invention has low viscosity, high resistivity, good low temperature intersolubility and fast response speed, applied to liquid crystal display especially IPS or FFS mode display, the display effect of liquid crystal display can be obviously improved;

Description

A kind of liquid-crystal composition and application

Technical field

The present invention relates to liquid crystal material field, and in particular to a kind of liquid-crystal composition and application, more More particularly to one kind contain 2- methyl -3,4, the liquid-crystal composition of 5- trifluorophenyl compounds, Especially, said composition is applied to the TV liquid crystal display of fast-response.

Background technology

Current liquid crystal is widely used in display field, and display is electric signal (data Information) it is changed into the process of visible light (visual information), the equipment for completing display is man-machine boundary Face (Man-Machine Interface, MMI).Liquid crystal display experienced unrestrained with the discovery of liquid crystal Long road for development.Austria botanist Friedrich Reinitzer are found that first within 1888 Plant liquid crystal material benzoic acid cholesterol (cholesteryl benzoate).Manguin in 1917 Rubbing is invented, to make single domain liquid crystal and research optical anisotropy.1909 Year, E.Bose established moving (Swarm) theory, and obtained L.S.Ormstein and F.Zernike Et al. experiment support (1918), be discussed as statistical fluctuation by De Gennes. G.W.Oseen and H.Zocher founded continuum theory in 1933, and obtained F.C.Frank Perfect (1958).M.Born (1916) and K.Lichtennecker (nineteen twenty-six) hairs Now and it have studied the dielectric anisotropy of liquid crystal.1932, W.Kast was accordingly by nematic phase point For the positive and negative major class of property two.Nineteen twenty-seven, V.Freedericksz and V.Zolinao have found nematic phase Liquid crystal deforms upon under electric field or magnetic fields and there is (Freederichsz turns of voltage threshold Become).This making for being found to be liquid crystal display provides foundation.

Nineteen sixty-eight RCA Corp. of U.S. R.Williams has found nematic liquid crystal shape under electric field action Into striped farmland, and there is light scattering phenomenon.G.H.Heilmeir with i.e. developed into dynamic scattering Display pattern, and first liquid crystal display (LCD) in the world is made.Early seventies, Helfrich and Schadt have invented TN principles, and people utilize TN photoelectric effect and integrated circuit phase With reference to, made display device (TN-LCD), be liquid crystal application opened up it is wide before Scape.Since the seventies, due to the development of large scale integrated circuit and liquid crystal material, liquid crystal exists Application in terms of display achieves breakthrough development, and 1983~1985 years T.Scheffer et al. are carried Go out super-twist nematic (Super Twisred Nematic:STN) pattern.

At present, liquid crystal display turns into the main flow display mode of television product, and liquid crystal display is because of it Turn into the optimal selection of consumer with technology maturation, the low advantage of cost.

Large size TV mainly has IPS (switch technology in In-plane Switching, face), FFS (Fringe Field Switching, fringe field switching technology) pattern and MVA (Multi-domain Vertical Alignment, mean many as limit vertically matches somebody with somebody same technology), PVA (Patterned Vertical Alignment, means the vertical adjustment technology of image), PSVA (vertically match somebody with somebody by polymer stabilizing To technology) etc. VA pattern display modes, VA class displays have that aberration and soft screen lack Point, causes display effect to be not so good as IPS and FFS displays.

At present, the problems such as IPS and FFS displays have overcome contrast and visual angle, successfully Applied to large scale liquid crystal display, still, the reason for by liquid crystal itself, the response time turns into The problem of IPS and the liquid crystal display of FFS mode TV are maximum, due to when IPS and FFS mode are responded Between depend on the distortion elastic constant (K22) of liquid crystal, and K22 is relative to K11 (splays Elastic constant) and K33 (bend elastic constant) it is very small, so cause the response time slow, Specifically, the response time that IPS and FFS are shown is dependent on the rotary viscosity of liquid crystal and K22 ratio It is worth (γ 1/K22).Ratio is smaller, and the response time is faster, so, how to reduce rotary viscosity Ratio with K22 is the key point for lifting the response time.

When liquid-crystal composition provided by the present invention aims to solve the problem that the response of FFS and IPS displays Between, specifically, liquid-crystal composition provided by the present invention has low rotary viscosity and big bullet Property constant, further possesses the fast response time.

The content of the invention

It is an object of the invention to provide a kind of liquid-crystal composition, provided liquid-crystal composition is invented With low rotary viscosity and big elastic constant, further possess the fast response time, so that Efficiently solve the problem of liquid crystal display response speed is slow.

One of technical scheme is:A kind of liquid-crystal composition, including representated by formula I At least one of compound, at least one of compound representated by formula II, general formula III institute At least one of representation compound, at least one of compound representated by formula IV:

Wherein, in formula I, R1Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl; N is 0 or 1;

In formula II, R2Represent C1~C12Straight chained alkyl;R3Represent H, C1~C5It is straight Alkyl group;

In general formula III, R4、R5It is each independently selected from C1~C12Straight chained alkyl, straight chain Alkoxy;A is selected from trans 1,4- cyclohexyl or 1,4- phenylenes;

In formula IV, R6Represent C1~C12Straight chained alkyl, C1~C12Unbranched alkoxy Or C2~C12Straight-chain alkenyl;R7Represent C1~C12Straight chained alkyl;B represents trans 1,4- Cyclohexyl or 1,4- phenylenes.

The compound representated by formula I that the present invention is provided is to contain 2- methyl -3,4,5- trifluoro-benzenes Structure and the polar compound of difluoro-methoxy bridged bond, the structure have big dielectric anisotropy.

Preferably, the compound representated by formula I is in the compound representated by Formulas I A or IB One or more:

Wherein, R1Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl, it is preferable that R1Represent C1~C7Straight chained alkyl, it is further preferred that R1Represent C2~C5Straight chained alkyl.

It is further preferred that the compound representated by formula I is selected from representated by Formulas I A1~Formulas I B4 The one or more of compound:

Most preferably, the compound choosing representated by liquid-crystal composition formula of I provided by the present invention It is one or more from Formulas I A2, IB1, IB2.

In the liquid-crystal composition, in percentage, compound representated by formula I adds Dosage is 1%-20%, or 7%-13%, or 5%-15%, or 7%-9%, or 9%-10%, or 10%-13%, preferably 7%-13%.

The compound representated by formula II that the present invention is provided is dicyclohexyl vinyl compound, should Class compound has low-down rotary viscosity and excellent intersolubility.

Preferably, one kind in Formula II A and IIB of the compound representated by the formula II or It is a variety of:

Wherein, R2Represent C1~C12Straight chained alkyl;Preferably, R2Represent C1~C7Straight chain Alkyl, it is further preferred that R2Represent C2~C5Straight chained alkyl.

It is further preferred that the compound representated by formula II is selected from Formula II A1~Formula II B4 one kind Or it is a variety of:

Most preferably, the compound choosing representated by liquid-crystal composition formula of II provided by the present invention It is one or more from Formula II A2, IIB1, IIB2.

In the liquid-crystal composition, by weight percentage, the compound representated by formula II Addition be 30%-60%, or 35%-55%, or 40%-44%, or 44%-52%, or 50%-52% or 40%-52%, preferably 40%-52%.

The compound representated by general formula III that the present invention is provided is twin nuclei.

Preferably, the compound representated by the general formula III is selected from one kind or many of following compound Kind:

Wherein, R4、R5It is each independently selected from C1~C12Straight chained alkyl, unbranched alkoxy; A is selected from trans 1,4- cyclohexyl or 1,4- phenylenes;Preferably, R4Represent C1~C7Straight chain alkane Base;R5Represent C1~C7Straight chained alkyl or unbranched alkoxy;It is further preferred that R4Represent C2~C5Straight chained alkyl;R5Represent C1~C5Straight chained alkyl or C1~C2Unbranched alkoxy.

It is further preferred that the compound representated by general formula III is selected from formula III A1~formula III B14 institutes The one or more of the compound of representative:

Most preferably, the compound representated by liquid-crystal compounds formula of III of the present invention is selected from One or more in formula III A10, IIIA14, IIIB2, IIIB4.

In the liquid-crystal composition, by weight percentage, the compound representated by general formula III Addition be 1%-20%, or 5%-15%, or 7%-10%, or 10%-14%, or 10%-13%, Or 7-14%, preferably 7%-14%.

Compound representated by formula IV is three ring neutral compounds, with big elastic constant and High clearing point.

Preferably, the compound representated by formula IV is selected from one kind representated by formula IV A or IVB Or it is a variety of:

Wherein, R6Represent C1~C12Straight chained alkyl, C1~C12Unbranched alkoxy or C2~C12 Straight-chain alkenyl;R7Represent C1~C12Straight chained alkyl;B represent trans 1,4- cyclohexyl or 1,4- phenylenes;Preferably, R6Represent C2~C8Straight chained alkyl or straight-chain alkenyl;R7Generation Table C1~C8Straight chained alkyl;It is further preferred that R6Represent C2~C5Straight chained alkyl or Straight-chain alkenyl;R7Represent C1~C5Straight chained alkyl.

It is further preferred that compound representated by formula IV is tied selected from formula IV A1 formula IVs B22 One or more in structure:

Most preferably, compounds of formula IV provided by the present invention be selected from IVA1, IVA3, One kind in IVA14, IVA18, IVA22, IVB3, IVB12, IVB16, IVB18 or It is a variety of.

In the liquid-crystal composition, by weight percentage, the compound representated by formula IV Addition be 10%-45%, or 20%-35%, or 25%-30%, or 30%-34%, or 27%-34%, or 25%-34%, preferably 25%-34%.

Liquid-crystal composition provided by the present invention also includes one in compound representated by formula V Plant or a variety of:

Wherein, R8Represent C1~C12Straight chained alkyl;X represents F or OCF3

Compound representated by formula V provided by the present invention is tetracyclic compound, and it has High clearing point.

Preferably, compounds of formula V provided by the present invention is in Formula V A or VB One or more:

Wherein, R8Represent C1~C12Straight chained alkyl;Preferably, R8Represent C1~C7Straight chain Alkyl;It is further preferred that R8Represent C2~C5Straight chained alkyl.

It is further preferred that compounds of formula V provided by the present invention is selected from Formula V A1~formula One or more in VB4:

Most preferably, compounds of formula V provided by the present invention be selected from VA1, VA2, VA3, One or more in VB1, VB2.

In the liquid-crystal composition, by weight percentage, the compound representated by formula V Addition be 0%-10%, preferably 0%-5% or 0%-4%.The liquid-crystal composition of the present invention In, formula I-IV is required addO-on therapy, and the compound representated by formula V is optional component, When adding the compound representated by formula V, its preferred addition is 2%-3%, further Preferably 3%.

For specific, in order that liquid-crystal composition meets different demands, liquid of the present invention Crystal composite includes following components in percentage by weight:

1), the one or more in compound representated by 1%~20% formula I;

2), the one or more in compound representated by 30%~60% formula II;

3), the one or more in compound representated by 1%~20% general formula III;

4), the one or more in compound representated by 10%~45% formula IV;

5), the one or more in compound representated by 0%~10% formula V.

Preferably, liquid-crystal composition provided by the present invention includes the group of following percentage by weight Point:

1), the one or more in compound representated by 5%~15% formula I;

2), the one or more in compound representated by 35%~55% formula II;

3), the one or more in compound representated by 5%~15% general formula III;

4), the one or more in compound representated by 20%~35% formula IV;

5), the one or more in compound representated by 0%~5% formula V.

It is highly preferred that liquid-crystal composition provided by the present invention includes the group of following percentage by weight Point:

1), the one or more in compound representated by 7%~13% formula I;

2), the one or more in compound representated by 40%~52% formula II;

3), the one or more in compound representated by 7%~14% general formula III;

4), the one or more in compound representated by 25~34 parts of formula IV;

5), the one or more in compound representated by 0~4 part of formula V.

Or, liquid-crystal composition provided by the present invention includes following components in percentage by weight:

1), the one or more in compound representated by 1%~20% formula I;

2), the one or more in compound representated by 30%~60% formula II;

3), the one or more in compound representated by 1%~20% general formula III;

4), the one or more in compound representated by 10%~45% formula IV.

Preferably, liquid-crystal composition provided by the present invention includes the group of following percentage by weight Point:

1), the one or more in compound representated by 7%~13% formula I;

2), the one or more in compound representated by 40%~52% formula II;

3), the one or more in compound representated by 7%~14% general formula III;

4), the one or more in compound representated by 25%~34% formula IV;

Or, liquid-crystal composition provided by the present invention includes following components in percentage by weight:

1), the one or more in compound representated by 7%~13% formula I;

2), the one or more in compound representated by 40%~52% formula II;

3), the one or more in compound representated by 7%~14% general formula III;

4), the one or more in compound representated by 25%~34% formula IV;

5), the one or more in compound representated by 2%~3% formula V.

It is particularly preferred that liquid-crystal composition provided by the present invention includes following percentage by weight Component:

Or, liquid-crystal composition provided by the present invention includes the component of following parts by weight:

Preferably, the present invention relates to any one liquid-crystal composition, its total consumption be 100%.

The technical characterstic of the present invention is:Because the compound representated by formula I has strong Dielectric anisotropy, the compound representated by formula II has low rotary viscosity, general formula III Representative compound has low rotary viscosity, and the compound representated by formula IV has height Clearing point and big elastic constant, the compound representated by formula V has high clearing point, When above-claimed cpd is combined into liquid-crystal composition, liquid-crystal composition has low viscosity, height Resistivity, good low temperature intersolubility and fast response speed.

Another advantage of liquid-crystal composition provided by the present invention is:With excellent light Stability, liquid-crystal composition provided by the present invention is without using Terphenyls monomer improving optical Anisotropy, is substantially improved the UV stability of liquid-crystal composition, in particular, in that UV illumination After penetrating, liquid-crystal composition provided by the present invention has high VHR (voltage retention) property Can be with low ion concentration (ION).

The preparation method of liquid-crystal composition of the present invention can use routine side without specifically limited Two or more compounds are mixed and produced by method, such as by mixing different groups at high temperature Divide and be prepared by method soluble in one another, wherein, liquid-crystal composition is dissolved in for the chemical combination In the solvent of thing and mix, the solvent is then distilled out under reduced pressure;Or it is of the present invention Liquid-crystal composition can be prepared conventionally, such as will wherein the less component of content compared with Be dissolved at high temperature in the larger key component of content, or will it is each belonging to component organic Dissolved in solvent, such as acetone, chloroform or methanol, then solution is mixed and removed after solvent Obtain.

The two of technical scheme are:Any one above-mentioned liquid-crystal composition is in liquid crystal Show the application in device.

Preferably, the liquid crystal display be IPS or FFS mode display, further it is excellent Selection of land, the liquid crystal display is IPS/FFS types TV (TV) liquid crystal display.

There is low viscosity due to liquid-crystal composition of the present invention, it is high resistivity, good low Warm intersolubility and fast response speed, liquid crystal can be obviously improved applied to liquid crystal display Show the display effect of device.

The present invention relates to compound be known compound, commercially available acquisition or by 800,000,000 when The scientific and technological joint-stock company of empty liquid crystal provides.

On the basis of common sense in the field is met, above-mentioned each optimum condition can be mutually combined, Produce each preferred embodiment of the invention.

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 Celsius Degree;△ n represent optical anisotropy (25 DEG C, 589nm);△ ε represent dielectric anisotropy (25 DEG C, 1000Hz);V10Threshold voltage is represented, is the character voltage when relative permeability changes 10% (V, 25 DEG C);γ 1 represents rotary viscosity (mPa.s, 25 DEG C);Cp represents liquid-crystal composition Clearing point (DEG C);K11、K22、K33Splay, distortion and bend elastic constant are represented respectively (pN, 25 DEG C).

In following embodiment, unit structure is represented with code shown in table 1 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:3PGUQKF

It is expressed as:3CCPGF

In following embodiment, the preparation of liquid-crystal composition uses heat of solution method, including with Lower step:Weigh liquid-crystal compounds by weight percentage with balance, wherein weigh addition sequence without Particular requirement, generally weighs mixing successively with the order of liquid-crystal compounds fusing point from high to low, Heating stirring causes each component to melt uniformly at 60~100 DEG C, then through filtering, revolving, finally seals Dress produces target sample.

In following embodiment, each compound being related to is known compound, Jun Ke cities Purchase is obtained or provided by the scientific and technological joint-stock company of Bayi Space liquid crystal.Each component in liquid-crystal composition The performance parameter of weight percent when liquid-crystal composition see the table below.

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

Comparative example 1

Table 16:The weight percent of each component when performance parameter in liquid-crystal composition

Embodiment 2 and each performance parameter value of the gained liquid-crystal composition of comparative example 1 are converged Always compare, referring to table 17.

Table 17:The performance parameter of liquid-crystal composition compares

△n △ε Cp γ1 K11 K22 K33 Embodiment 2 0.098 +2.5 80 54.8 14.0 7.0 16.3 Comparative example 1 0.098 +2.5 80 55.3 13.8 6.9 16.0

Understood through comparing:Compared with comparative example 1, the liquid-crystal composition tool that embodiment 2 is provided There is big elastic constant, therefore with the fast response time.

In addition, the stability of comparative example 2 and comparative example 1, test data is shown in Table 18:

Table 18:The Reliability comparotive of liquid-crystal composition

Note:Test temperature is 60 ± 1 DEG C

Understood through comparing:Compared with comparative example 1, the liquid-crystal composition tool that embodiment 2 is provided There is more excellent photostability, can effectively lift the service life of liquid crystal display.

As seen from the above embodiment, liquid-crystal composition provided by the present invention have low viscosity, High resistivity, big optical anisotropy and excellent photostability and heat endurance, can Solution reduces the response time of liquid crystal display, so that it is slow to solve liquid crystal display response speed Problem.In addition, the liquid-crystal composition can effectively improve IPS and FFS liquid crystal displays Contrast-response characteristic.Therefore, liquid-crystal composition provided by the present invention is applied to the IPS of fast-response And FFS liquid crystal display devices, it is particularly suitable for use in IPS and FFS mode TV liquid crystal displays.

Although, above with general explanation, embodiment and experiment, to this hair It is bright to have made detailed description, but on the basis of the present invention, it can be made some modifications or improvements, This will be apparent to those skilled in the art.Therefore, without departing from spirit of the invention On the basis of these modifications or improvements, belong to the scope of protection of present invention.

Claims (10)

1. a kind of liquid-crystal composition, it is characterised in that:Including in compound representated by formula I At least one, at least one of compound representated by formula II, compound representated by general formula III At least one of, at least one of compound representated by formula IV:
Wherein, in formula I, R1Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl; N is 0 or 1;
In formula II, R2Represent C1~C12Straight chained alkyl;R3Represent H, C1~C5It is straight Alkyl group;
In general formula III, R4、R5It is each independently selected from C1~C12Straight chained alkyl, straight chain Alkoxy;A is selected from trans 1,4- cyclohexyl or 1,4- phenylenes;
In formula IV, R6Represent C1~C12Straight chained alkyl, C1~C12Unbranched alkoxy Or C2~C12Straight-chain alkenyl;R7Represent C1~C12Straight chained alkyl;B represents trans 1,4- Cyclohexyl or 1,4- phenylenes.
2. liquid-crystal composition according to claim 1, it is characterised in that:Formula I institute's generations One or more of the compound of table in the compound representated by Formulas I A or IB:
Wherein, R1Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl, it is preferable that R1Represent C1~C7Straight chained alkyl, it is further preferred that R1Represent C2~C5Straight chained alkyl;
Preferably, the compound representated by formula I is selected from the compound representated by Formulas I A1~Formulas I B4 One or more:
It is further preferred that the compound representated by formula I is one in Formulas I A2, IB1, IB2 Plant or a variety of.
3. liquid-crystal composition according to claim 1 or 2, it is characterised in that:Formula II One or more of the representative compound in Formula II A and IIB:
Wherein, R2Represent C1~C12Straight chained alkyl;Preferably, R2Represent C1~C7Straight chain Alkyl, it is further preferred that R2Represent C2~C5Straight chained alkyl;
Preferably, the compound representated by formula II is selected from Formula II A1~Formula II B4 one or more:
It is further preferred that the compound representated by formula II is selected from Formula II A2, IIB1, IIB2 Middle one or more.
4. the liquid-crystal composition according to claim any one of 1-3, it is characterised in that:It is logical Compound representated by formula III is selected from the one or more of following compound:
Wherein, R4、R5It is each independently selected from C1~C12Straight chained alkyl, unbranched alkoxy; A is selected from trans 1,4- cyclohexyl or 1,4- phenylenes;Preferably, R4Represent C1~C7Straight chain alkane Base;R5Represent C1~C7Straight chained alkyl or unbranched alkoxy;It is further preferred that R4Represent C2~C5Straight chained alkyl;R5Represent C1~C5Straight chained alkyl or C1~C2Unbranched alkoxy;
Preferably, the compound representated by general formula III is selected from representated by formula III A1~formula III B14 The one or more of compound:
It is further preferred that compound representated by general formula III be selected from formula III A10, IIIA14, One or more in IIIB2, IIIB4.
5. the liquid-crystal composition according to claim any one of 1-4, it is characterised in that:It is logical Compound representated by formula IV is selected from the one or more representated by formula IV A or IVB:
Wherein, R6Represent C1~C12Straight chained alkyl, C1~C12Unbranched alkoxy or C2~C12 Straight-chain alkenyl;R7Represent C1~C12Straight chained alkyl;Preferably, R6Represent C2~C8It is straight Alkyl group or straight-chain alkenyl;R7Represent C1~C8Straight chained alkyl;It is further preferred that R6Generation Table C2~C5Straight chained alkyl or straight-chain alkenyl;R7Represent C1~C5Straight chained alkyl;
Preferably, the one kind of compound representated by formula IV in formula IV A1 formula IV B22 structures Or it is a variety of:
It is further preferred that compounds of formula IV be selected from IVA1, IVA3, IVA14, IVA18, One or more in IVA22, IVB3, IVB12, IVB16, IVB18.
6. the liquid-crystal composition according to claim any one of 1-5, it is characterised in that:Also Include the one or more in compound representated by formula V:
Wherein, R8Represent C1~C12Straight chained alkyl;X represents F or OCF3
7. liquid-crystal composition according to claim 6, it is characterised in that:Formula V institute's generations One or more of the compound of table in Formula V A or VB:
Wherein, R8Represent C1~C12Straight chained alkyl;Preferably, R8Represent C1~C7Straight chain Alkyl;It is further preferred that R8Represent C2~C5Straight chained alkyl;
Preferably, one or more of the compounds of formula V in Formula V A1~Formula V B4:
It is further preferred that compounds of formula V be selected from VA1, VA2, VA3, VB1, One or more in VB2.
8. the liquid-crystal composition according to claim any one of 1-7, it is characterised in that:Institute State liquid-crystal composition and include following components in percentage by weight:
1), the one or more in compound representated by 1%~20% formula I;
2), the one or more in compound representated by 30%~60% formula II;
3), the one or more in compound representated by 1%~20% general formula III;
4), the one or more in compound representated by 10%~45% formula IV;
5), the one or more in compound representated by 0%~10% formula V;
Preferably, the liquid-crystal composition includes following components in percentage by weight:
1), the one or more in compound representated by 5%~15% formula I;
2), the one or more in compound representated by 35%~55% formula II;
3), the one or more in compound representated by 5%~15% general formula III;
4), the one or more in compound representated by 20%~35% formula IV;
5), the one or more in compound representated by 0%~5% formula V;
More preferably, the liquid-crystal composition includes following components in percentage by weight:
1), the one or more in compound representated by 7%~13% formula I;
2), the one or more in compound representated by 40%~52% formula II;
3), the one or more in compound representated by 7%~14% general formula III;
4), the one or more in compound representated by 25%~34% formula IV;
5), the one or more in compound representated by 0%~4% formula V;
Or, the liquid-crystal composition includes following components in percentage by weight:
1), the one or more in compound representated by 1%~20% formula I;
2), the one or more in compound representated by 30%~60% formula II;
3), the one or more in compound representated by 1%~20% general formula III;
4), the one or more in compound representated by 10%~45% formula IV;
Preferably, the liquid-crystal composition includes following components in percentage by weight:
1), the one or more in compound representated by 7%~13% formula I;
2), the one or more in compound representated by 40%~52% formula II;
3), the one or more in compound representated by 7%~14% general formula III;
4), the one or more in compound representated by 25%~34% formula IV;
Or, the liquid-crystal composition includes following components in percentage by weight:
1), the one or more in compound representated by 7%~13% formula I;
2), the one or more in compound representated by 40%~52% formula II;
3), the one or more in compound representated by 7%~14% general formula III;
4), the one or more in compound representated by 25%~34% formula IV;
5), the one or more in compound representated by 2%~3% formula V;
Preferably, the percentage by weight of any one above-mentioned liquid-crystal composition is 100%.
9. the liquid-crystal composition according to claim any one of 1-8, it is characterised in that:Institute State liquid-crystal composition and include following components in percentage by weight:
Or, the liquid-crystal composition includes following components in percentage by weight:
Preferably, the percentage by weight of any one above-mentioned liquid-crystal composition is 100%.
10. liquid-crystal composition described in claim any one of 1-9 in a liquid crystal display should It is IPS or FFS mode display with, it is preferable that the liquid crystal display, it is further preferred that The liquid crystal display is IPS/FFS type TV liquid crystal displays.
CN201610173141.2A 2016-03-24 2016-03-24 A kind of liquid-crystal composition and application CN107227158A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104449761A (en) * 2014-11-20 2015-03-25 蒋战英 Liquid crystal compound containing difluoromethoxy bridged bonds and application thereof
CN104610983A (en) * 2015-01-21 2015-05-13 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application of liquid crystal composition
CN104673323A (en) * 2015-02-04 2015-06-03 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorophenyl liquid crystal compound and application thereof
CN104774623A (en) * 2015-03-13 2015-07-15 北京八亿时空液晶科技股份有限公司 Liquid crystal composition and applications thereof
CN104830349A (en) * 2015-03-13 2015-08-12 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104449761A (en) * 2014-11-20 2015-03-25 蒋战英 Liquid crystal compound containing difluoromethoxy bridged bonds and application thereof
CN104610983A (en) * 2015-01-21 2015-05-13 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application of liquid crystal composition
CN104673323A (en) * 2015-02-04 2015-06-03 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorophenyl liquid crystal compound and application thereof
CN104774623A (en) * 2015-03-13 2015-07-15 北京八亿时空液晶科技股份有限公司 Liquid crystal composition and applications thereof
CN104830349A (en) * 2015-03-13 2015-08-12 北京八亿时空液晶科技股份有限公司 Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application thereof

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