CN107189792B - A kind of positive and negative mixed liquid crystal composition and its application - Google Patents

A kind of positive and negative mixed liquid crystal composition and its application Download PDF

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CN107189792B
CN107189792B CN201610147492.6A CN201610147492A CN107189792B CN 107189792 B CN107189792 B CN 107189792B CN 201610147492 A CN201610147492 A CN 201610147492A CN 107189792 B CN107189792 B CN 107189792B
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crystal composition
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CN107189792A (en
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王杰
储士红
未欣
陈卯先
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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    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
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    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-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
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    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
    • C09K19/3405—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a five-membered ring
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    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • G—PHYSICS
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    • 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
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    • C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
    • C09K19/12—Non-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
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    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
    • C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
    • C09K2019/3422—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a six-membered ring

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Abstract

The present invention provides a kind of positive and negative mixed liquid crystal composition, the composition has big vertical dielectric, can effectively promote the light transmission rate of liquid crystal display；The parallel dielectric that I class compound promotes liquid-crystal composition is added in the liquid-crystal composition, add the vertical dielectric that there is class ii the compound of negative dielectric anisotropic to increase composition, the rotary viscosity that liquid-crystal composition is further reduced using group iii compound, the liquid-crystal composition with fast-response and high transmittance is reached with this.Liquid-crystal composition provided by the present invention is suitable for TN, IPS, FFS type liquid crystal display, especially suitable IPS and FFS type liquid crystal display.

Description

A kind of positive and negative mixed liquid crystal composition and its application
Technical field
The present invention relates to a kind of liquid-crystal composition, belong to liquid crystal display material field, more particularly to a kind of with high transmission The positive and negative mixed liquid crystal composition of rate and its application.
Background technique
Currently, liquid crystal is used widely in field of information display, while the application in optical communication also achieves centainly Progress (S.T.Wu, D.K.Yang.Reflective Liquid Crystal Displays.Wiley, 2001).In recent years, The application field of liquid-crystal compounds significantly widens kinds of displays part, electro-optical device, electronic component, sensor etc..For This, it has been suggested that many different structures, especially in nematic crystal field, nematic liquid crystal compound is so far flat Most commonly used application is obtained in plate display.Especially in the system of tft active matrix.
Liquid crystal display experienced very long road for development with the discovery of liquid crystal.Austrian botanist in 1888 Friedrich Reinitzer has found the first liquid crystal material benzoic acid cholesterol (cholesteryl benzoate). Manguin has invented rubbing within 1917, to make single domain liquid crystal and research optical anisotropy.E.Bose in 1909 Moving (Swarm) theory is established, and (1918) are supported in the experiment for obtaining L.S.Ormstein and F.Zernike et al., after Statistical fluctuation is discussed as through De Gennes.G.W.Oseen and H.Zocher1933 foundes continuum theory, and obtains F.C.Frank perfect (1958).M.Born (1916) and K.Lichtennecker (nineteen twenty-six) has found and has studied liquid crystal Dielectric anisotropy.1932, nematic phase was divided into positive and negative property two major classes accordingly by W.Kast.Nineteen twenty-seven, For V.Freedericksz and V.Zolinao discovery nematic liquid crystal under electric field (or magnetic field) effect, deformation occurs and there is electricity It presses threshold value (Freederichsz transformation).This production for being found to be liquid crystal display provides foundation.
Nineteen sixty-eight RCA Corp., U.S. R.Williams discovery nematic liquid crystal forms striped farmland under electric field action, and has Light scattering phenomenon.With dynamic scattering display pattern is developed into and first liquid crystal in the world is made in G.H.Heilmeir Display (LCD).Early seventies, Helfrich and Schadt have invented TN principle, and people are using TN photoelectric effect and integrate Circuit combines, and is made into display device (TN-LCD), has opened up wide prospect for the application of liquid crystal.The seventies with Come, due to the development of large scale integrated circuit and liquid crystal material, application of the liquid crystal in terms of display achieves breakthrough development, 1983~1985 years T.Scheffer et al. successively propose super-twist nematic (Super TwisredNematic:STN) mode And active matrix (Active matrix:AM) mode that P.Brody was proposed in 1972 is used again.Traditional TN- LCD technology has developed into STN-LCD and TFT-LCD technology, although the number of scanning lines of STN up to 768 rows more than, work as temperature The problems such as response speed, visual angle and gray scale are remained when raising, therefore large area, high information quantity, colored display are mostly Using Active Matrix LCD At mode.TFT-LCD is widely used for direct viewing type TV, large-curtain projecting TV set, terminal Display and certain military instrument are shown, it is believed that TFT-LCD technology has more extensive application prospect.
Wherein " active matrix " includes two types: 1, the OMS on the silicon wafer as substrate (partly lead by metal oxide Body) or other diodes.2, the thin film transistor (TFT) on the glass plate as substrate (TFT).
Monocrystalline silicon limits display size as substrate material, because each section display device even module assembled is in its knot Occur many problems at conjunction.Thus, second of thin film transistor (TFT) is the promising active matrix type of tool, the photoelectricity effect utilized It should be usually TN effect.TFT includes compound semiconductor, such as Cdse, or the TFT based on polycrystalline or amorphous silicon.
Currently, for for plate and smart phone display small size and middle display of size for, in face convert (IPS) and fringing field switching (FFS) mode is very interesting.IPS and FFS mode are widely used in intelligent and middle ruler The reason of very little display is wide viewing angle, compared with the existing technology in known mode low operating parameter, relative to IPS mode, FFS Possess higher transmissivity.Liquid crystal compound in the prior art is characterized in that it by the compound with positive dielectric anisotropy And optional neutral compound is constituted.
In a liquid crystal display, it is expected that facilitating the medium of the following advantage in box: wide nematic phase range (especially to Under until low temperature)；The ability (outdoor application, automobile, avionics) switched at extremely low temperatures；Improve to ultraviolet spoke The tolerance (longer service life) penetrated；Low threshold voltage (saves electric energy)；High-transmission rate.
The major function of liquid crystal display is to play a part of photoswitch, and light light loss after liquid crystal layer is former to only having Come 6% or so, so to obtain brighter display effect, it is necessary to increase backlight illumination, this by will increase backlight energy consumption and Reduce backlight life.Another approach is the liquid crystal display for obtaining high transmissivity, liquid crystal combination provided by the present invention Object is conducive to improve the transmissivity of liquid crystal display.
It has now been discovered that the liquid-crystal composition with small ε ∥/ε ⊥ can be mentioned effectively under IPS and FFS display pattern The light transmission rate of liquid crystal display is risen, and the liquid crystal display of low driving voltage requires liquid crystal to have big △ ε (ε ∥-ε ⊥), therefore, promoting ε ⊥ becomes the key factor for promoting liquid crystal display transmitance.In a liquid crystal composition, how liquid is chosen Brilliant molecule becomes a bit mostly important of this index in the big liquid-crystal compounds of the dielectric perpendicular to long axis direction.
Summary of the invention
The first object of the present invention is to provide a kind of positive and negative mixed liquid crystal composition with high transmittance, institute of the present invention Obtained liquid-crystal composition effectively promotes the vertical dielectric of liquid-crystal composition, and the transmitance of liquid crystal display is effectively promoted Characteristic.And with very low numerical value rotary viscosity γ 1, big elastic constant, fast response speed, be suitable for TN, IPS and The various applications of FFS mode, especially IPS and FFS mode.
Specifically, the present invention provides a kind of positive and negative mixed liquid crystal composition, comprising a kind of or more in the composition Plant compound shown in compound shown in general formula I and one or more general formula II.
The compound that general formula I of the present invention is represented has high positive dielectric anisotropy (+△ ε), and intersolubility is good, rotation The features such as viscosity is low, excellent combination property.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；General formula The content of compound described in I in the composition is preferably 5~39%.Specifically, the general formula I is as follows:
In the general formula I, R1It is selected fromH, unsubstituted C1~C12Alkyl or alkoxy, one or The C that multiple H are optionally substituted by halogen1~C12Alkyl or alkoxy；
A1、A2It is independently represented each other:
A3It represents:
N represents 0 or 1.
Preferably, compound representated by general formula I is selected from one or more of following I-A~I-AF:
In the I-A~I-AF, R1Represent C1~C7Straight chained alkyl.
It is further preferred that the compound that general formula I is represented is selected from the one or more of following I-A-1~I-T-4:
The compound that general formula I of the present invention is represented as containing 2- methyl -3,4,5- trifluorophenyl and difluoro-methoxy (- CF2O- the compound of compound), the structure has big dielectric anisotropy, secondly the methyl of position is reprimand electron group, it can Effectively increase the dielectric anisotropy of the compound, wherein I-C class monocrystalline is the liquid-crystal compounds containing dioxygen heterocycle, the knot Structure has big vertical dielectric, and promotes one of the method for liquid-crystal composition vertical dielectric.
The compound that general formula II of the present invention is represented has high negative dielectric anisotropic (- △ ε), therefore has greatly vertical Dielectric (ε ⊥), can effectively promote the vertical dielectric of liquid-crystal composition.In liquid-crystal composition provided by the invention, each liquid crystal components The sum of be 100%；The content of compound described in general formula II in the composition is preferably 2~30%.Specifically, the general formula II It is as follows:
In the general formula II, R2、R3It is independently represented each other C1~C10Alkyl or alkoxy；L1And L2Each independently Represent hydrogen atom or CH3, and the L in the same compound1And L2It is not simultaneously CH3。
Preferably, the compound that general formula II is represented is selected from one of following II-A~II-K or a variety of:
In the II-A~II-K, R2、R3It is independently represented each other C1~C7Straight chained alkyl.
It is further preferred that the compound that general formula II is represented is selected from one of following II-A-1~II-K-15 or a variety of:
It may include one or more in liquid-crystal composition provided by the invention to improve the comprehensive performance of liquid-crystal composition Compound representated by general formula III.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；General formula III The content of the compound in the composition is preferably 13~60.5%.
The compound that general formula III of the present invention represents as two ring structures non-polar component.Such compound is for reducing body The viscosity of system improves response speed effect significantly, is the essential a kind of compound of liquid crystal compound for deploying quick response. Specifically, the general formula III is as follows:
R4-A4-A5-R5III；
In the general formula III, A4、A5It is independently represented each other trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；R4、R5Respectively Independently represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be taken each independently by O or CH=CH Generation.
Preferably, the compound that general formula III represents is selected from one of following III-A~III-C or a variety of:
In the III-A~III-C, R4、R5It is independently represented each other C1~C7Straight chained alkyl, wherein one or more Non-conterminous CH2Cocoa is independently replaced by O or CH=CH certainly.
It is further preferred that the compound that general formula III represents is selected from one of following III-A-1~III-C-25 or more Kind:
It may include one or more in liquid-crystal composition provided by the invention to improve the comprehensive performance of liquid-crystal composition Compound representated by general formula IV.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；General formula IV institute Stating the content of compound in the composition is preferably 0~25.5%, and more preferably 2~25.5%.
The compound of Formula IVIV of the present invention is tricyclic non-polar conformations, with big elastic constant (K11, K22, K33) and low rotary viscosity, the elastic constant for promoting liquid-crystal composition have positive effect.Specifically, the general formula IV It is as follows:
In the general formula IV, R6Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can respectively solely On the spot replaced by O or CH=CH；
R7Represent C1~C12Straight chained alkyl；
A6It represents:
Preferably, the compound of Formula IVIV is selected from one of following IV-A~IV-C or a variety of:
In the IV-A~IV-C, R6It is independently represented each other C2~C7Straight chained alkyl or straight-chain alkenyl, preferably C2~ C5Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C7Straight chained alkyl, preferably C1~C5Straight chained alkyl.
It may include one or more in liquid-crystal composition provided by the invention to improve the comprehensive performance of liquid-crystal composition Compound representated by general formula V~XI.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%；General formula V The content of compound representated by~XI in the composition is preferably 0~47%, and more preferably 5~47%, further preferably 14~47% or 5~37%.
The compound that general formula V of the present invention is represented is tricyclic polar structure, has biggish polarity, intersolubility is good, has Conducive to the intermiscibility problem for improving highly polar I class and non-polar monomer.(total amount is in any one liquid-crystal composition 100%), the content of compound in the composition representated by general formula V is preferably 0~42%, and more preferably 2~42%, into one Step preferably 2~22% or 42%.Specifically, the general formula V is as follows:
In the general formula V, R8Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be respectively independent Ground is replaced by O or CH=CH；
L3、L4It is independently represented each other H or F；
X represents F, CF3、OCF3、OCF2H；
A7It represents:
Preferably, the compound that general formula V is represented is selected from one of following V-A~V-NC or a variety of:
In the V-A~V-NC, R8Represent C2~C7Straight chained alkyl or straight-chain alkenyl, preferably C2~C5Straight chained alkyl Or straight-chain alkenyl.
The compound that general formula VI of the present invention is represented is terphenyl structure, has big optical anisotropy, can effectively be promoted The optical anisotropy of liquid-crystal composition.In any one liquid-crystal composition (total amount 100%), change representated by general formula VI Closing the content of object in the composition is preferably 0~13%, more preferably 5~13% or 7~10%.Specifically, the general formula VI is as follows:
In the general formula VI, R9Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can by O or CH=CH replaces；
L5、L6It is independently represented each other H or F, and the two is not identical in same compound；
Y represents F, CF3、OCF3、OCF2H、C1-C5Straight chained alkyl or C2~C5Straight-chain alkenyl.
Preferably, the compound that general formula VI is represented is selected from one of following VI-A~VI-G or a variety of:
In the VI-A~VI-G, R9, Y be independently represented each other C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl； It is highly preferred that R9, Y be independently represented each other C1~C5Straight chained alkyl or C4~C5Straight chain 3E alkenyl.
The compound that general formula VII~IX of the present invention is represented is tetracyclic structure, with big optical anisotropy and high clear Bright spot performance has remarkable result for the clearing point and optical anisotropy that promote composition.In any one liquid-crystal composition In (total amount 100%), the content of compound in the composition representated by general formula VII~IX is preferably 0~19%, more preferably It is 3~19% or 5~14%., it is preferable to use the chemical combination that general formula VIII is represented in the compound representated by general formula VII~IX Object.
Specifically, compound representated by general formula VII exists in any one liquid-crystal composition (total amount 100%) Content in composition is preferably 0~19%, and more preferably 3~19%, further preferably 14%.The general formula VII is as follows It is shown:
In the general formula VII, R10Represent C1~C12Straight chained alkyl；L7、L8It is independently represented each other H or F；Z represent F, CF3、OCF3Or OCF2H。
Preferably, the compound that general formula VII is represented is selected from one or more of following VII-A~VII-F:
In the VII-A~VII-F, R10Represent C1~C7Straight chained alkyl, more preferably C2~C5Straight chained alkyl.
In any one liquid-crystal composition (total amount 100%), compound representated by general formula VIII is in the composition Content be preferably 0~8%, more preferably 2~8% or 6%.The general formula VIII is as follows:
In the general formula VIII, L9Represent H or F；R11、R12It is independently represented each other C1~C12Straight chained alkyl.
Preferably, the compound that general formula VIII is represented is selected from one or more of following VIII-A~VIII-B:
In the VIII-A~VIII-B, R11、R12It is independently represented each other C1~C7Straight chained alkyl；It is highly preferred that R11、 R12It is independently represented each other C2~C5Straight chained alkyl.
In any one liquid-crystal composition (total amount 100%), compound representated by general formula IX is in the composition Content is preferably 0~10%, and more preferably 10%.The general formula IX is as follows:
In the general formula IX, R13、R14It is independently represented each other C1~C12Straight chained alkyl.
Preferably, shown in the following IX-A of compound that general formula IX is represented:
In the IX-A, R13、R14It is independently represented each other C1~C7Straight chained alkyl；It is highly preferred that R13、R14Respectively solely On the spot represent C2~C5Straight chained alkyl.
The compound that general formula X of the present invention represents is biphenyl class polarity monocrystalline, has big dielectric anisotropy and big light Anisotropy is learned, has significant effect for the dielectric anisotropy and optical anisotropy that promote liquid-crystal composition.It is in office It anticipates (total amount 100%) in a kind of liquid-crystal composition, the content of compound in the composition representated by general formula X is preferably 0~ 17%, more preferably 3~17%, further preferably 10~17% or 3~12%.Specifically, the following institute of general formula X Show:
In the general formula X, R15Represent C1~C12Straight chained alkyl；W represents F, CF3、OCF3Or OCF2H；
M represents 0 or 1；A8It represents:
Preferably, the compound that general formula X represents is selected from one or more of following X-A~X-L:
In the X-A~X-L, R15Represent C1~C7Straight chained alkyl；Preferably C2~C5Straight chained alkyl.
The compound that general formula X I of the present invention is represented is dioxygen heterocyclic polar compound, which has big vertical Jie Electricity also can reach the effect for promoting liquid-crystal composition vertical dielectric.In any one liquid-crystal composition (total amount 100%), The content of compound representated by general formula X I in the composition is preferably 0~20%, and more preferably 10~20%.Specifically, The general formula X I is as follows:
In the general formula X I, R16Represent C1~C12Straight chained alkyl；
A9It represents:
Preferably, the compound that general formula X I is represented is selected from one or more of following XI-A~XI-C:
In the XI-A~XI-C, R16Represent C1~C7Straight chained alkyl, preferably C2~C5Straight chained alkyl.
In order to realize that the synergistic effect between each component, the present invention carry out the composition of each component in the liquid-crystal composition It is preferred that.In liquid-crystal composition provided by the invention, the sum of each liquid crystal components are 100%.
Specifically, the liquid-crystal composition includes following components in percentage by weight:
1) compound representated by 1%~60% one or more general formula I；
2) compound representated by 0.5%~50% one or more general formula II；
3) compound representated by 0~80% one or more general formula IIIs；
4) compound representated by 0~80% one or more general formula IV；
5) compound representated by 0~80% one or more general formula V~general formula X I
More preferably, the liquid-crystal composition includes following components in percentage by weight:
1) compound representated by 1%~21% one or more logical formula (I)s；
2) compound representated by 0.5%~40% one or more logical formula (II)s；
3) compound representated by 10%~70% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 1%~60% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 21%~50% one or more logical formula (I)s；
2) compound representated by 0.5%~15% one or more logical formula (II)s；
3) compound representated by 15%~50% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 1%~50% one or more logical formula (V)~general formulas (XI).
Preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 1%~20.5% one or more logical formula (I)s；
2) compound representated by 1%~30% one or more logical formula (II)s；
3) compound representated by 11%~60.5% one or more logical formula (III)s；
4) compound representated by 0%~25.5% one or more logical formula (IV)s；
5) compound representated by 3%~55% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 21%~45% one or more logical formula (I)s；
2) compound representated by 1%~10% one or more logical formula (II)s；
3) compound representated by 19%~45% one or more logical formula (III)s；
4) compound representated by 0%~25% one or more logical formula (IV)s；
5) compound representated by 5%~47% one or more logical formula (V)~general formulas (XI).
More preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 3%~45% one or more logical formula (I)s；
2) compound representated by 0.5%~10% one or more logical formula (II)s；
3) compound representated by 10%~70% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 1%~60% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 5%~30% one or more logical formula (I)s；
2) compound representated by 11%~40% one or more logical formula (II)s；
3) compound representated by 10%~50% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 1%~40% one or more logical formula (V)~general formulas (XI).
Preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 5%~39% one or more logical formula (I)s；
2) compound representated by 1%~10% one or more logical formula (II)s；
3) compound representated by 11%~60.5% one or more logical formula (III)s；
4) compound representated by 0%~25.5% one or more logical formula (IV)s；
5) compound representated by 4%~55% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 9%~20% one or more logical formula (I)s；
2) compound representated by 11%~30% one or more logical formula (II)s；
3) compound representated by 13%~47% one or more logical formula (III)s；
4) compound representated by 0%~24% one or more logical formula (IV)s；
5) compound representated by 3%~32% one or more logical formula (V)~general formulas (XI).
More preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 3%~45% one or more logical formula (I)s；
2) compound representated by 0.5%~40% one or more logical formula (II)s；
3) compound representated by 10%~40% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 1%~60% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 3%~45% one or more logical formula (I)s；
2) compound representated by 0.5%~35% one or more logical formula (II)s；
3) compound representated by 41%~70% one or more logical formula (III)s；
4) compound representated by 0%~30% one or more logical formula (IV)s；
5) compound representated by 3%~40% one or more logical formula (V)~general formulas (XI).
Preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 5%~39% one or more logical formula (I)s；
2) compound representated by 1%~30% one or more logical formula (II)s；
3) compound representated by 11%~40% one or more logical formula (III)s；
4) compound representated by 0%~25.5% one or more logical formula (IV)s；
5) compound representated by 3%~55% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 5%~38% one or more logical formula (I)s；
2) compound representated by 1%~30% one or more logical formula (II)s；
3) compound representated by 41%~60.5% one or more logical formula (III)s；
4) compound representated by 0%~24% one or more logical formula (IV)s；
5) compound representated by 4%~35% one or more logical formula (V)~general formulas (XI).
More preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 3%~45% one or more logical formula (I)s；
2) compound representated by 0.5%~40% one or more logical formula (II)s；
3) compound representated by 10%~70% one or more logical formula (III)s；
4) compound representated by 1%~30% one or more logical formula (IV)s；
5) compound representated by 1%~45% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 3%~45% one or more logical formula (I)s；
2) compound representated by 0.5%~35% one or more logical formula (II)s；
3) compound representated by 10%~70% one or more logical formula (III)s；
4) compound representated by 10%~60% one or more logical formula (V)~general formulas (XI).
Preferably, liquid-crystal composition provided by the present invention includes following components in percentage by weight:
1) compound representated by 5%~39% one or more logical formula (I)s；
2) compound representated by 1%~30% one or more logical formula (II)s；
3) compound representated by 11%~60.5% one or more logical formula (III)s；
4) compound representated by 2%~25.5% one or more logical formula (IV)s；
5) compound representated by 3%~41% one or more logical formula (V)~general formulas (XI).
Or:
1) compound representated by 5%~38% one or more logical formula (I)s；
2) compound representated by 1%~30% one or more logical formula (II)s；
3) compound representated by 17%~60% one or more logical formula (III)s；
4) compound representated by 14%~55% one or more logical formula (V)~general formulas (XI).
As one of the solution of the present invention, the liquid-crystal composition includes following components in percentage by weight:
1) compound representated by 5%~38% one or more general formula I；
2) compound representated by 1%~10% one or more general formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 14%~47% one or more general formula V~XI.
As one of the solution of the present invention, the liquid-crystal composition includes following components in percentage by weight:
1) compound representated by 5%~39% one or more general formula I；
2) compound representated by 4%~30% one or more general formula II；
3) compound representated by 13%~60.5% one or more general formula IIIs；
4) compound representated by 2%~25.5% one or more general formula IV；
5) compound representated by 5%~37% one or more general formula V~XI.
One of as a preferred solution of the present invention, the liquid-crystal composition includes following components in percentage by weight；Wherein, The sum of percentage composition shared by compound representated by general formula V~XI is 14%~47%:
1) compound representated by 5%~38% one or more general formula I；
2) compound representated by 1%~10% one or more general formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 0~42% one or more general formula V；
5) compound representated by 0~13% one or more general formula VI；
6) compound representated by 5~14% one or more general formula VII~IX；
7) compound representated by 0~17% one or more general formula Xs.
One of as a preferred solution of the present invention, the liquid-crystal composition includes following components in percentage by weight；Wherein, The sum of percentage composition shared by compound representated by general formula V~XI is 5%~37%:
1) compound representated by 5%~39% one or more general formula I；
2) compound representated by 4%~30% one or more general formula II；
3) compound representated by 13%~60.5% one or more general formula IIIs；
4) compound representated by 2%~25.5% one or more general formula IV；
5) compound representated by 0~22% one or more general formula V；
6) compound representated by 0~10% one or more general formula VI；
7) compound representated by 0~19% one or more general formula VII~IX；
8) compound representated by 0~12% one or more general formula Xs；
9) compound representated by 0~20% one or more general formula X I.
Most preferably, liquid-crystal composition provided by the present invention, consists of the following components in percentage by weight:
1), compound representated by 18%~35% one or more logical formula (I)s；
2), compound representated by 2%~30% one or more logical formula (II)s；
3), compound representated by 37%~45% one or more logical formula (III)s；
4), compound representated by 16%~25% one or more logical formula (IV)s；
5), compound representated by 3%~8% one or more logical formula (VIII)s.
It is further preferred that liquid-crystal composition provided by the present invention, consists of the following components in percentage by weight:
1) compound representated by 22.5%~30% one or more general formula I；
2) compound representated by 4%~10% one or more general formula II；
3) compound representated by 41%~45% one or more general formula IIIs；
4) compound representated by 17%~24% one or more general formula IV；
5) compound representated by 5%~8% one or more general formula VIII.
In liquid-crystal composition provided by the invention, synergistic effect can be played between each component, realize excellent comprehensive performance. Specifically, compound representated by general formula I has high positive dielectric anisotropy (+Δ ε), and intersolubility is good, rotation is viscous The features such as low is spent, excellent combination property；Compound representated by general formula II has high negative dielectric anisotropic (- Δ ε), therefore With big vertical dielectric (ε ⊥), the vertical dielectric of liquid-crystal composition can be effectively promoted.The present invention on this basis, preferably exists Other components are added in the composition, to improve comprehensive performance；Wherein, the two ring structure compounds that general formula III represents are non- Polar compound, such compound are the liquid for deploying quick response for reducing the viscosity of system, improving response speed effect significantly The essential a kind of compound of brilliant mixture；The compound of Formula IVIV is tricyclic non-polar conformations, with big bullet Property constant (K11, K22, K33) and low rotary viscosity, the elastic constant for promoting liquid-crystal composition has positive effect；General formula The compound that V is represented is tricyclic polar structure, has biggish polarity, intersolubility is good, is conducive to improve highly polar I class With the intermiscibility problem of non-polar monomer；The compound that general formula VI is represented is terphenyl structure, has big optical anisotropy, The optical anisotropy of liquid-crystal composition can effectively be promoted；The compound that general formula VII~IX is represented is tetracyclic structure, has big Optical anisotropy and high clearing point performance have remarkable result for the clearing point and optical anisotropy that promote composition； General formula X class monocrystalline is biphenyl class polarity monocrystalline, has big dielectric anisotropy and big optical anisotropy, for promoting liquid The dielectric anisotropy and optical anisotropy of brilliant composition have significant effect；The compound that general formula X I is represented is miscellaneous as dioxygen Ring class polar compound, the structure have big vertical dielectric, also can reach the effect for promoting liquid-crystal composition vertical dielectric.
The preparation method of liquid-crystal composition of the present invention can be used conventional method and change two or more without specifically limited It closes object mixing to be produced, such as the method preparation by mixing different component at high temperature and being soluble in one another, wherein by liquid crystal group It closes object to dissolve in solvent in the solvent used for the compound and mix, then distills out the solvent under reduced pressure；Or it is of the present invention Liquid-crystal composition can be prepared conventionally, such as wherein the lesser component of content will be dissolved in content at a higher temperature In biggish main component, or each affiliated component dissolved in organic solvent, such as acetone, chloroform or methanol, it then will be molten It is obtained after liquid mixing removal solvent.
Invention also provides application of the above-mentioned liquid-crystal composition in liquid crystal display device, liquid crystal group of the present invention Closing object has low viscosity, high resistivity, good low temperature intersolubility, fast response speed and excellent light transmission rate, can Fast-response liquid crystal display for plurality of display modes.
FFS and IPS has become the display pattern of most mainstream at present, but transmitance present in FFS and IPS is low asks Topic becomes critical issue urgently to be resolved；Device producer generally by promoted backlight illumination come achieve the purpose that promoted brightness, but by Power consumption caused by this obviously increases；It is found through experiments that, the liquid-crystal composition with big vertical dielectric has high saturating Rate is crossed, therefore can achieve the effect for promoting brightness and not increasing power consumption.Liquid-crystal composition provided by the present invention has Big vertical dielectric can effectively promote the light transmission rate of liquid crystal display, especially in the aobvious of FFS and IPS display pattern Show in device.
Detailed description of the invention
Fig. 1 is the light transmission rate contrast schematic diagram of liquid-crystal composition described in comparative example 1 and embodiment 7；In figure, dotted line generation Table comparative example 1, solid line represent embodiment 7.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
All liquid-crystal compounds used in the present invention are all known compound, are provided by Bayi Space, can also be from it His source is commercially available to be bought.
The preparation of liquid-crystal composition is all made of following method in the embodiment of the present invention: the preparation use of uniform liquid crystal is general in the industry All over the heat of solution method used, liquid-crystal compounds is weighed by weight percentage with balance first, wherein weighing addition sequence without spy Provisioning request usually successively weighs mixing with the sequence of liquid-crystal compounds fusing point from high to low, and heating stirring makes at 60-100 DEG C It obtains each component to melt uniformly, using filter, revolving, finally encapsulates target sample to obtain the final product.
Unless otherwise indicated, percentage is weight percentage in context, and all temperature are given in degrees celsius.Under use State abbreviation:
△ n is optical anisotropy (25 DEG C), and Δ ε is dielectric anisotropy (25 DEG C, 1000Hz), ε⊥For vertical dielectric (25 DEG C, 1000Hz), Cp are the clearing point (DEG C) of liquid-crystal composition, and γ 1 is rotary viscosity (25 DEG C, mpa.s), K11、K22、K33 Respectively splay, distortion, bend elastic constant (25 DEG C, pN).
For the ease of indicating, in following embodiment, unit structure code shown in following table is indicated in liquid-crystal compounds:
By taking such as flowering structure as an example:
Structure code listed by table indicates, then it represents that is 4CDUQKF.
For another example with flowering structure:
Structure code listed by table indicates, then it represents that is 5CCPUF.
Embodiment 1
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 1:
The weight percent of each component when performance parameter in the liquid-crystal composition of 1 embodiment 1 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3DUQKF 15 △n 0.102
I 2DPUQKF 9 Δε 8.9
I 3DPUQKF 8 ε⊥ 5.1
II 5OMO2 5 γ1 76
III 3CCV 42 Cp 80
IV VCCP1 9 K11 10.6
X 3CPGUOCF3 10 K22 5.3
X 3PPGUF 2 K33 13.2
Embodiment 2
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 2:
The weight percent of each component when performance parameter in the liquid-crystal composition of 2 embodiment 2 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3CDUQKF 13 △n 0.097
I 3PUQKF 10 Δε 12
I 2APUQKF 10 ε⊥ 6
I 3APUQKF 5 γ1 96
II 5OMO2 6 Cp 89
III 3CCV 42 K11 11.9
VII 2CCPUF 5 K22 5.9
VII 3CCPUF 5 K33 15.5
VII 4CCPUF 4
Embodiment 3
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 3:
The weight percent of each component when performance parameter in the liquid-crystal composition of 3 embodiment 3 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3CCQKF 13 △n 0.097
I 3PUQKF 12 Δε 11
I 3APUQKF 14 ε⊥ 5.5
II 3OMO2 5 γ1 124
II 5ONO2 5 Cp 90
III 3CCV 24 K11 12.6
IV VCCP1 9 K22 6.3
V 3CCUF 10 K33 15.6
VII 2CCPUF 4
VII 3CCPUF 4
Embodiment 4
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 4:
The weight percent of each component when performance parameter in the liquid-crystal composition of 4 embodiment 4 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PGUQKF 9 △n 0.099
II 5MO2 4 Δε 2.6
III 3CCV 40 ε⊥ 2.8
III 3CCV1 12 γ1 55
III 5PP1 7 Cp 82
IV VCCP1 13 K11 13.9
IV V2CCP1 8 K22 6.9
VI 2PGPF 7 K33 16.5
Embodiment 5
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 5:
The weight percent of each component when performance parameter in the liquid-crystal composition of 5 embodiment 5 of table
Embodiment 6
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 6:
The weight percent of each component when performance parameter in the liquid-crystal composition of 6 embodiment 6 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 5 △n 0.09
II 5OLO2 10 Δε 3.9
III 3CCV 40 ε⊥ 4.3
III 5CCV 10 Cp 82
III 2CC3 10 γ1 56
VI 4CPGP3 5 K11 14.3
IX 5CPGP2 5 K22 7.2
IX 5CPGP3 5 K33 16.4
X 3DPGUF 10
Embodiment 7
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 7:
The weight percent of each component when performance parameter in the liquid-crystal composition of 7 embodiment 7 of table
Embodiment 8
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 8:
The weight percent of each component when performance parameter in the liquid-crystal composition of 8 embodiment 8 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3DUQKF 5 △n 0.109
I 3PUQKF 10 Δε 6.4
II 5OMO5 6 ε⊥ 3.6
III 3CCV 36 Cp 92
IV VCCP1 13 γ1 78
IV V2CCP1 6 K11 13.4
VII 2CCPUF 4 K22 6.7
VII 3CCPUF 4 K33 17.3
VII 5CPGP3 6
XI 3DPUF 10
Embodiment 9
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 9:
The weight percent of each component when performance parameter in the liquid-crystal composition of 9 embodiment 9 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 13 △n 0.096
II 5ONO2 10 Δε 9
II 5ONO5 10 ε⊥ 5.3
III 4CCV 13 Cp 100
IV VCCP1 4 γ1 116
IV V2CCP1 13 K11 13.8
V VCCGF 8 K22 6.9
V 4CCUF 10 K33 18.2
V 5CCUF 4
VII 2CCPUF 4
VII 3CCPUF 4
VIII 3CPPC3 4
VIII 3CGPC3 3
Embodiment 10
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 10:
The weight percent of each component when performance parameter in the liquid-crystal composition of 10 embodiment 10 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 5 △n 0.103
I 3CCQKF 15 Δε 8.5
I 2APUQKF 5 ε⊥ 5.1
I 3DPUQKF 9 Cp 101
II 3N2 6 γ1 106
III 3CCV 34 K11 13.6
III 3CCV1 2 K22 6.8
IV VCCP1 2 K33 18.5
V 3CCUF 10
VII 3CCPUF 4
VIII 3CPPC3 4
X 3CPGUOCF3 4
Embodiment 11
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 11:
The weight percent of each component when performance parameter in the liquid-crystal composition of 11 embodiment 11 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 11 △n 0.101
II 5OMO2 1 Δε 6.2
II 5OLO2 1 ε⊥ 4.1
III 3CCV 42 Cp 76
III 3CCV1 9 γ1 52
VI 2PGP3 7 K11 11.2
VI 2PGP4 6 K22 5.6
VIII 3CPPC3 6 K33 12.7
X 2PGUF 8
X 3PGUF 9
Composition provided by the embodiment possesses the fast response time, especially shows under low-temperature condition, is suitable for fast Response liquid crystal display device.
Embodiment 12
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 12:
The weight percent of each component when performance parameter in the liquid-crystal composition of 12 embodiment 12 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 2APUQKF 10 △n 0.095
I 3APUQKF 8 Δε 9.3
I 3DCQKF 13 ε⊥ 3.7
II 5N2 1 Cp 91
III 3CCV 21 γ1 105
V VCCGF 10 K11 12.6
V 2CCUF 5 K22 6.3
V 3CCUF 10 K33 16.2
V 5CCUF 5
V 3CPGF 5
V 5CPUF 2
V 3CGUF 5
VII 3CCPUF 5
Embodiment 13
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 13:
The weight percent of each component when performance parameter in the liquid-crystal composition of 13 embodiment 13 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3CCQKF 13 △n 0.097
I 3PUQKF 12 Δε 5.2
I 3APUQKF 14 ε⊥ 3.9
II 5OMO2 1 γ1 124
II 5OMO5 2 Cp 84
III 3CCV 24 K11 12.6
IV VCCP1 14 K22 6.3
VII 2CCPUF 5 K33 15.7
VII 3CCPUF 5
XI 3DGUF 10
Embodiment 14
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 14:
The weight percent of each component when performance parameter in the liquid-crystal composition of 14 embodiment 14 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 10 △n 0.102
II 5MO5 2 Δε 6.1
III 3CCV 29 ε⊥ 4.2
III 3CCV1 5 Cp 88
IV VCCP1 13 γ1 72
IV V2CCP1 11 K11 12.3
V 3CCUF 4 K22 6.1
V 3CPUF 9 K33 16.6
V 3CGUF 7
VII 3CCPUF 7
X 2PGUF 3
Embodiment 15
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 15:
The weight percent of each component when performance parameter in the liquid-crystal composition of 15 embodiment 15 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 10 △n 0.121
I 3PGUQKG 4.5 Δε 5.7
I 4DPUQKF 5 ε⊥ 3.7
II 5ONO5 3 γ1 72
III 3CCV 30 Cp 91
III 5PP1 8 K11 14.2
IV VCCP1 12 K22 7.1
IV V2CCP1 6 K33 15.6
IV 3CPP2 2.5
IV 3CCP1 5
VI 2PGPF 5
VI 3PGPF 5
VIII 3CPPC3 4
Embodiment 16
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 16:
The weight percent of each component when performance parameter in the liquid-crystal composition of 16 embodiment 16 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 4DUQKF 5 △n 0.101
II 5OMO2 3 Δε 6.4
III 3CCV 30 ε⊥ 4.5
III 3CCV1 5 γ1 74
IV VCCP1 13 Cp 86
IV V2CCP1 11 K11 12.6
VII 3CCPUF 8 K22 6.3
X 2PGUF 5 K33 15.8
XI 3DCUF 4
XI 3DPUF 9
XI 3DGUF 7
Embodiment 17
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 17:
The weight percent of each component when performance parameter in the liquid-crystal composition of 17 embodiment 17 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I 3PUQKF 12 △n 0.1
I 2APUQKF 5.5 Δε 6
II 5OM2 4.5 ε⊥ 3.6
III 3CCV 42 Cp 93
III 1PP2V 3 γ1 75
IV 3CPP2 4 K11 12.5
V 2CCGF 10 K22 6.2
VII 2CCPGF 5 K33 16.4
VII 3CCPGF 5
VII 4CCPGF 5
VII 5CCPGF 4
Embodiment 18
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 18:
The weight percent of each component when performance parameter in the liquid-crystal composition of 18 embodiment 18 of table
Embodiment 19
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 19:
The weight percent of each component when performance parameter in the liquid-crystal composition of 19 embodiment 19 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I TPUQKF 10 △n 0.102
I 2APUQKF 6 Δε 6.5
I TAPUQKF 6 ε⊥ 3.7
I 4DPUQKF 3 Cp 91
II 5OMO2 5 γ1 76
III 3CCV 45 K11 13.8
IV 3CCP1 5 K22 6.9
IV 3CPP2 5 K33 16.6
IV VCCP1 10
VIII 3CPPC3 5
Embodiment 20
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 20:
The weight percent of each component when performance parameter in the liquid-crystal composition of 20 embodiment 20 of table
Embodiment 21
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 21:
The weight percent of each component when performance parameter in the liquid-crystal composition of 21 embodiment 21 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I ZPUQKF 10 △n 0.101
I 2APUQKF 8 Δε 7.7
I ZAPUQKF 7 ε⊥ 3.7
I 4DUQKF 2 Cp 93
I ZDPUQKF 3 γ1 77
II 3OMO2 6 K11 13.6
III 3CCV 41 K22 6.8
IV VCCP1 10 K33 15.9
IV 3CPP2 8
VIII 3CPPC3 5
Embodiment 22
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 22:
The weight percent of each component when performance parameter in the liquid-crystal composition of 22 embodiment 22 of table
Classification Component Weight percent (%) Performance parameter Parameter value
I ZGUQKF 6 △n 0.1
I ZDUQKF 5.5 Δε 6.1
I ZPGUQKF 6 ε⊥ 3.9
I 4DPUQKF 3 γ1 82
I 4DUQKF 2 Cp 89
II 5OMO2 6 K11 13.1
III 3CCV 41.5 K22 6.5
IV 3CPP1 5 K33 16.5
IV 3CPP2 7
IV VCCP1 12
VIII 3CPPC3 6
Comparative example 1
It takes the liquid-crystal compounds of following weight percent and prepares liquid-crystal composition in heretofore described method, specifically match When the performance parameter of resulting liquid-crystal composition is shown in Table 23:
The weight percent of each component when performance parameter in the liquid-crystal composition of 23 comparative example 1 of table
Component Weight percent (%) Performance parameter Parameter value
3PGUQUF 6.5 △n 0.098
3APUQUF 5 Δε +2.6
3CCV 40 ε⊥ 2.6
3CCV1 12 γ1 80
1V2PP1 7 Cp 52
VCCP1 13 K11 13.6
V2CCP1 12 K22 6.8
2PGP3 4 K33 16.2
3PPGUF 0.5
Comparative example 7 and comparative example 1, parameter such as table 24:
Table 24: comparative example 1 and 7 performance parameter of embodiment
Project Comparative example 1 Embodiment 7
△n 0.098 0.098
Δε +2.6 +2.6
ε⊥ 2.6 2.9
Cp 80 82
γ1 52 55
K11 13.6 13.7
K22 6.8 6.8
K33 16.2 16.3
The vertical dielectric of embodiment 7 promotes 11% or so relative to comparative example 1, can effectively promote the transmission of liquid crystal display Rate characteristic plays transmitance and promotes 3% or so, optical data such as table 25:
Table 25: the chromaticity coordinates and transmission measurement result of comparative example 1 and embodiment 7
Project Comparative example 1 Embodiment 7
Colour temperature 7901.67 7554.80
Brightness 24.1848 24.9899
x 0.2945 0.2984
y 0.3115 0.3155
Its light transmission rate comparison diagram is as shown in Figure 1.
Composition proposed by the invention has big vertical dielectric, and the transmitance that can effectively promote liquid crystal display is special Property, specific implementation is the parallel dielectric added I class compound and promote liquid-crystal composition, and addition class ii has negative dielectric Anisotropic compound increases the vertical dielectric of composition, and the rotation for reducing liquid-crystal composition using group iii compound is viscous Degree reaches the liquid-crystal composition with fast corresponding and high transmittance with this, liquid-crystal composition use provided by the present invention and TN, IPS, FFS type liquid crystal display, especially suitable IPS and FFS type liquid crystal display.
Although above the present invention is described in detail with a general description of the specific embodiments, 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.Cause This, these modifications or improvements, fall within the scope of the claimed invention without departing from theon the basis of the spirit of the present invention.

Claims (16)

1. a kind of positive and negative mixed liquid crystal composition, which is characterized in that include compound and one kind shown in one or more general formula I Or compound shown in a variety of general formula II；Also comprising compound shown in one or more general formula IIIs；
The general formula I is as follows:
In the general formula I, R1It is selected fromH, unsubstituted C1~C12Alkyl or alkoxy, one or more The C that H is optionally substituted by halogen1~C12Alkyl or alkoxy；
A1、A2It is independently represented each other:
A3It represents:
N represents 0 or 1；
The general formula II is as follows:
In the general formula II, R2、R3It is independently represented each other C1~C10Alkyl or alkoxy；L1And L2It is independently represented each other hydrogen Atom or CH3, and work as L1For H, L2For CH3, or work as L1For CH3, L2For H；
The general formula III is as follows:
R4-A4-A5-R5III；
In the general formula III, A4、A5It is independently represented each other trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；R4、R5Each independently Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be replaced each independently by O or CH=CH；
The liquid-crystal composition further includes compound shown in one or more general formula IV；
The general formula IV is as follows:
In the general formula IV, R6Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be each independently Replaced by O or CH=CH；R7Represent C1~C12Straight chained alkyl；
A6It represents:
Also comprising chemical combination shown in compound or/and one or more general formula VI shown in one or more general formula V in the composition Object；
The general formula V is as follows:
In the general formula V, R8Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can each independently by O or CH=CH replaces；L3、L4It is independently represented each other H or F；X represents F, CF3、OCF3、OCF2H；
A7It represents:
The general formula VI is as follows:
In the general formula VI, R9Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be by O or CH= CH replaces；L5、L6It is independently represented each other H or F, and the two is not identical in same compound；Y represents F, CF3、OCF3、 OCF2H、C1-C5Straight chained alkyl or C2~C5Straight-chain alkenyl；
It also include one or more general formula VII~IX compounds represented in the composition；
The general formula VII is as follows:
In the general formula VII, R10Represent C1~C12Straight chained alkyl；L7、L8It is independently represented each other H or F；Z represents F, CF3、 OCF3Or OCF2H；
The general formula VIII is as follows:
In the general formula VIII, L9Represent H or F；R11、R12It is independently represented each other C1~C12Straight chained alkyl；
The general formula IX is as follows:
In the general formula IX, R13、R14It is independently represented each other C1~C12Straight chained alkyl；
Also comprising shown in one or more general formula X compounds represented or/and one or more general formula X I in the composition Compound；
The general formula X is as follows:
In the general formula X, R15Represent C1~C12Straight chained alkyl；W represents F, CF3、OCF3Or OCF2H；
M represents 0 or 1；A8It represents
The general formula X I is as follows:
In the general formula X I, R16Represent C1~C12Straight chained alkyl；A9It represents:
The liquid-crystal composition, the ingredient including following weight percentage:
1) compound representated by 9%~20% one or more general formula I；
2) compound representated by 11%~30% one or more general formula II；
3) compound representated by 13%~47% one or more general formula IIIs；
4) compound representated by 0%~24% one or more general formula IV；
5) compound representated by 3%~32% one or more general formula V~general formula X I.
2. liquid-crystal composition according to claim 1, which is characterized in that compound representated by general formula I is selected from following I-A One or more of~I-AF:
In the I-A~I-AF, R1Represent C1~C7Straight chained alkyl.
3. liquid-crystal composition according to claim 2, which is characterized in that the compound that general formula I is represented is selected from following I-A-1 ~I-T-4's is one or more:
4. liquid-crystal composition according to claim 1, which is characterized in that the compound that general formula II is represented is selected from following II-A One of~II-K or a variety of:
In the II-A~II-H, R2、R3It is independently represented each other C1~C7Straight chained alkyl.
5. liquid-crystal composition according to claim 4, which is characterized in that the compound that general formula II is represented is selected from following II- One of A-1~II-H-25 or a variety of:
6. liquid-crystal composition according to claim 1, which is characterized in that the compound that general formula III represents is selected from as follows One of III-A~III-C or a variety of:
In the III-A~III-C, R4、R5It is independently represented each other C1~C7Straight chained alkyl, wherein one or more are non-conterminous CH2It can be replaced each independently by O or CH=CH.
7. liquid-crystal composition according to claim 6, which is characterized in that the compound that general formula III represents is selected from as follows One of III-A-1~III-C-25 or a variety of:
8. liquid-crystal composition according to claim 1, which is characterized in that the compound of Formula IVIV is selected from following IV-A One of~IV-C or a variety of:
In the IV-A~IV-C, R6It is independently represented each other C2~C7Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C7's Straight chained alkyl.
9. liquid-crystal composition according to claim 1, which is characterized in that the compound that the general formula V is represented is selected from as follows One of V-A~V-N or a variety of:
In the V-A~V-N, R8Represent C2~C7Straight chained alkyl or straight-chain alkenyl.
10. liquid-crystal composition according to claim 1, which is characterized in that the compound that the general formula VI is represented is selected from such as One of lower VI-A~VI-G or a variety of:
In the VI-A~VI-G, R9Represent C1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl, Y represents C1-C5Straight chain alkane Base or C2~C5Straight-chain alkenyl.
11. liquid-crystal composition according to claim 1, which is characterized in that the compound that the general formula VII is represented is selected from such as One or more of lower VII-A~VII-F:
In the VII-A~VII-F, R10Represent C1~C7Straight chained alkyl；
The compound that the general formula VIII is represented is selected from one or more of following VIII-A~VIII-B:
In the VIII-A~VIII-B, R11、R12It is independently represented each other C1~C7Straight chained alkyl；
Shown in the following IX-A of compound that the general formula IX is represented:
In the IX-A, R13、R14It is independently represented each other C1~C7Straight chained alkyl.
12. liquid-crystal composition according to claim 1, which is characterized in that the compound that the general formula X represents is selected from as follows One or more of X-A~X-L:
In the X-A~X-L, R15Represent C1~C7Straight chained alkyl.
13. liquid-crystal composition according to claim 1, which is characterized in that the compound that the general formula X I is represented is selected from such as One or more of lower XI-A~XI-C:
In the XI-A~XI-C, R16Represent C1~C7Straight chained alkyl.
14. liquid-crystal composition described in any one according to claim 1~8, which is characterized in that contain including following weight percent The ingredient of amount:
1) compound representated by 5%~39% one or more general formula I；
2) compound representated by 4%~30% one or more general formula II；
3) compound representated by 13%~60.5% one or more general formula IIIs；
4) compound representated by 2%~25.5% one or more general formula IV；
5) compound representated by 5%~37% one or more general formula V~XI；
Or:
1) compound representated by 5%~39% one or more general formula I；
2) compound representated by 4%~30% one or more general formula II；
3) compound representated by 13%~60.5% one or more general formula IIIs；
4) compound representated by 2%~25.5% one or more general formula IV；
5) compound representated by 0~22% one or more general formula V；
6) compound representated by 0~10% one or more general formula VI；
7) compound representated by 0~19% one or more general formula VII~IX；
8) compound representated by 0~12% one or more general formula Xs；
9) compound representated by 0~20% one or more general formula X I；
Wherein, the sum of percentage composition shared by compound representated by general formula V~XI is 5%~37%；
Or:
1) compound representated by 18%~35% one or more general formula I；
2) compound representated by 2%~30% one or more general formula II；
3) compound representated by 37%~45% one or more general formula IIIs；
4) compound representated by 16%~25% one or more general formula IV；
5) compound representated by 3%~8% one or more general formula VIII；
Or:
1) compound representated by 22.5%~30% one or more general formula I；
2) compound representated by 4%~10% one or more general formula II；
3) compound representated by 41%~45% one or more general formula IIIs；
4) compound representated by 17%~24% one or more general formula IV；
5) compound representated by 5%~8% one or more general formula VIII.
15. the application of positive and negative mixed liquid crystal composition in a display device described in claim 1~9 any one.
16. application according to claim 15, which is characterized in that the display device is FFS and IPS mode display.
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