CN107189792A - 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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CN107189792A
CN107189792A CN201610147492.6A CN201610147492A CN107189792A CN 107189792 A CN107189792 A CN 107189792A CN 201610147492 A CN201610147492 A CN 201610147492A CN 107189792 A CN107189792 A CN 107189792A
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CN107189792B (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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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/34—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
    • C—CHEMISTRY; METALLURGY
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    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
    • C09K19/10—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
    • 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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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/44—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing compounds with benzene rings directly linked
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
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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
    • C09K2019/121—Compounds containing phenylene-1,4-diyl (-Ph-)
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    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/06—Non-steroidal liquid crystal compounds
    • C09K19/34—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 invention provides a kind of positive and negative mixed liquid crystal composition, the composition has big vertical dielectric, can effectively lift the light transmission rate of liquid crystal display；The parallel dielectric that compound I lifts liquid-crystal composition is added in the liquid-crystal composition, the compound that addition class ii has negative dielectric anisotropic increases the vertical dielectric of composition, the rotary viscosity of 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 applied to TN, IPS, FFS type liquid crystal display, especially suitable IPS and FFS types 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 it is a kind of with high transmission The positive and negative mixed liquid crystal composition of rate and its application.
Background technology
At present, liquid crystal is used widely in field of information display, while the application in optical communication is also achieved necessarily 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, particularly in nematic crystal field, nematic liquid crystal compound is so far flat Most commonly used application is obtained in panel display.Particularly 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 are found that 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 obtains L.S.Ormstein and F.Zernike et al. experiment and supports (1918), 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 have studied liquid crystal Dielectric anisotropy.1932, nematic phase was divided into the positive and negative major class of property two by W.Kast accordingly.Nineteen twenty-seven, V.Freedericksz and V.Zolinao has found that nematic liquid crystal under electric field (or magnetic field) effect, is deformed upon and in the presence of electricity Press threshold value (Freederichsz transformations).This making for being found to be liquid crystal display provides foundation.
Nineteen sixty-eight RCA Corp. of U.S. R.Williams has found that 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 principles, and people utilize TN photoelectric effect and integrated Circuit is combined, and is made display device (TN-LCD), is that wide prospect has been opened up in 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) pattern And active matrix (the Active matrix that P.Brody was proposed in 1972：AM) mode is used again.Traditional TN- LCD technology has developed into STN-LCD and TFT-LCD technologies, although STN number of scanning lines up to 768 rows more than, work as temperature The problems such as response speed, visual angle and gray scale are remained during rise, 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 some military instrument are shown, it is believed that TFT-LCD technologies have more wide application prospect.
Wherein " active matrix " includes two types：1st, the OMS on the silicon wafer as substrate (partly lead by metal oxide Body) or other diodes.2nd, on the glass plate as substrate thin film transistor (TFT) (TFT).
Monocrystalline silicon limits display size as substrate material, because each several part display device even module assembled is tied at it Occur many problems at conjunction.Thus, second of thin film transistor (TFT) is the promising active matrix type of tool, the photoelectricity effect utilized Should be typically TN effects.TFT includes compound semiconductor, such as Cdse, or the TFT based on polycrystalline or amorphous silicon.
At present, for the small size and middle display of size for flat board and smart mobile phone display, changed in face (IPS) and fringing field switching (FFS) pattern be very interesting.IPS and FFS mode are widely used in intelligent and middle chi The reason for very little display is wide viewing angle, relative to the low operational factor for knowing pattern in the prior art, relative to IPS patterns, FFS Possess higher transmissivity.Liquid crystal compound of the prior art is characterised by it by the compound with positive dielectric anisotropy And optional neutral compound is constituted.
In a liquid crystal display, expect to contribute to the medium of the following advantage in box：Wide nematic phase range (particularly to Under until low temperature)；The ability (outdoor application, automobile, avionics) switched under extremely low temperature；Improve to ultraviolet spoke The tolerance (longer service life) penetrated；Low threshold voltage (saving 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 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 Thing is conducive to improving the transmissivity of liquid crystal display.
It has now been discovered that under IPS and FFS display patterns, the liquid-crystal composition with small ε ∥/ε ⊥ can be carried effectively The light transmission rate of liquid crystal display is risen, and the liquid crystal display of low driving voltage requires that liquid crystal has big △ ε (ε ∥-ε ⊥), therefore, lifting ε ⊥ turn into the key factor of lifting liquid crystal display transmitance.In liquid-crystal composition, how liquid is chosen Brilliant molecule turns into a bit mostly important of this index in the big liquid-crystal compounds of the dielectric perpendicular to long axis direction.
The content 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 lifts the vertical dielectric of liquid-crystal composition, effectively improves the transmitance of liquid crystal display Characteristic.And with very low numerical value rotary viscosity γ 1, big elastic constant, fast response speed, it is adaptable to TN, IPS and The various applications of FFS mode, particularly IPS and FFS mode.
Specifically, the invention provides a kind of positive and negative mixed liquid crystal composition, comprising a kind of or many in the composition Plant compound shown in formula I, and compound shown in one or more formula II.
The compound that formula I of the present invention is represented has high positive dielectric anisotropy (+△ ε), and intersolubility is good, rotation The low feature of viscosity, excellent combination property.In the liquid-crystal composition that the present invention is provided, each liquid crystal components sum is 100%；Formula The content of compound described in I in the composition is preferably 5~39%.Specifically, the formula I is as follows：
In the 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、A2Represent independently of one another：
A3Represent：
N represents 0 or 1.
Preferably, one or more of the compound representated by formula I in following I-A~I-AF：
In the I-A~I-AF, R1Represent C1~C7Straight chained alkyl.
It is further preferred that the compound that formula I is represented is selected from following I-A-1~I-T-4 one or more：
The compound that formula I of the present invention is represented as containing 2- methyl -3,4,5- trifluorophenyls and difluoro-methoxy (- CF2O- compound), the compound of the structure has big dielectric anisotropy, secondly the methyl of position is reprimand electron group, can Effectively increase the dielectric anisotropy of the compound, wherein I-C classes monocrystalline is the liquid-crystal compounds containing dioxygen heterocycle, the knot Structure has big vertical dielectric, is also to lift one of method of liquid-crystal composition vertical dielectric.
The compound that formula II of the present invention is represented has high negative dielectric anisotropic (- △ ε), therefore with greatly vertical Dielectric (ε ⊥), can effectively lift the vertical dielectric of liquid-crystal composition.In the liquid-crystal composition that the present invention is provided, each liquid crystal components Sum is 100%；The content of compound in the composition is preferably 2~30% described in formula II.Specifically, the formula II It is as follows：
In the formula II, R2、R3C is represented independently of one another1~C10Alkyl or alkoxy；L1And L2Independently of one another Represent hydrogen atom or CH3, and the L in same compound1And L2It is asynchronously CH3。
Preferably, one or more of the compound that formula II is represented in following II-A~II-K：
In the II-A~II-K, R2、R3C is represented independently of one another1~C7Straight chained alkyl.
It is further preferred that one or more of the compound of formula II representatives in following II-A-1~II-K-15：
One or more can be included in the combination property of liquid-crystal composition, the liquid-crystal composition that the present invention is provided in order to improve Compound representated by general formula III.In the liquid-crystal composition that the present invention is provided, each liquid crystal components sum is 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 is represented as two ring structures non-polar component.Such compound is for reduction body The viscosity of system, raising response speed effect are notable, are the essential class compounds of the liquid crystal compound of allotment quick response. Specifically, the general formula III is as follows：
R4-A4-A5-R5III；
In the general formula III, A4、A5Trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented independently of one another；R4、R5Each Independently represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be taken independently of one another by O or CH=CH Generation.
Preferably, one or more of the compound that general formula III is represented in following III-A~III-C：
In the III-A~III-C, R4、R5C is represented independently of one another1~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 one kind or many of the compound of general formula III representative in following III-A-1~III-C-25 Kind：
One or more can be included in the combination property of liquid-crystal composition, the liquid-crystal composition that the present invention is provided in order to improve Compound representated by formula IV.In the liquid-crystal composition that the present invention is provided, each liquid crystal components sum is 100%；Formula IV institutes It is preferably 0~25.5% to state the content of compound in the composition, and more preferably 2~25.5%.
The compound of Formula IVIV of the present invention is three ring non-polar conformations, its have big elastic constant (K11, K22, K33) and low rotary viscosity, there is positive effect for lifting the elastic constant of liquid-crystal composition.Specifically, the formula IV It is as follows：
In the formula IV, R6Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be each only On the spot replaced by O or CH=CH；
R7Represent C1~C12Straight chained alkyl；
A6Represent：
Preferably, one or more of the compound of Formula IVIV in following IV-A~IV-C：
In the IV-A~IV-C, R6C is represented independently of one another2~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.
One or more can be included in the combination property of liquid-crystal composition, the liquid-crystal composition that the present invention is provided in order to improve Compound representated by formula V~XI.In the liquid-crystal composition that the present invention is provided, each liquid crystal components sum is 100%；Formula V The content of compound in the composition representated by~XI is preferably 0~47%, and more preferably 5~47%, more preferably 14~47% or 5~37%.
The compound that formula V of the present invention is represented is three ring polar structures, with larger polarity, and its intersolubility is good, has Beneficial to the highly polar I classes of improvement and the sex chromosome mosaicism that mixes of non-polar monomer.(total amount is in any one liquid-crystal composition 100%), the content of the compound representated by formula V in the composition is preferably 0~42%, and more preferably 2~42%, enter one Step is preferably 2~22% or 42%.Specifically, the formula V is as follows：
In the formula V, R8Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be each independent Ground is replaced by O or CH=CH；
L3、L4H or F is represented independently of one another；
X represents F, CF3、OCF3、OCF2H；
A7Represent：
Preferably, one or more of the compound that formula V is represented in following V-A~V-NC：
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 formula VI of the present invention is represented is terphenyl structure, with big optical anisotropy, can effectively be lifted The optical anisotropy of liquid-crystal composition.(total amount is 100%), the change representated by formula VI in any one liquid-crystal composition The content of compound in the composition is preferably 0~13%, more preferably 5~13% or 7~10%.Specifically, the formula VI is as follows：
In the formula VI, R9Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can by O or CH=CH replaces；
L5、L6H or F is represented independently of one another, and both differ in same compound；
Y represents F, CF3、OCF3、OCF2H、C1-C5Straight chained alkyl or C2~C5Straight-chain alkenyl.
Preferably, one or more of the compound that formula VI is represented in following VI-A~VI-G：
In the VI-A~VI-G, R9, Y represent C independently of one another1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl； It is highly preferred that R9, Y represent C independently of one another1~C5Straight chained alkyl or C4~C5Straight chain 3E alkenyls.
The compound that 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 for lifting composition.In any one liquid-crystal composition In (total amount is 100%), the content of compound in the composition representated by formula VII~IX is preferably 0~19%, more preferably For 3~19% or 5~14%.In the compound representated by formula VII~IX, the chemical combination of formula VIII representatives is preferably used Thing.
Specifically, in any one liquid-crystal composition (total amount is 100%), the compound representated by formula VII exists Content in composition is preferably 0~19%, more preferably 3~19%, more preferably 14%.The formula VII is as follows It is shown：
In the formula VII, R10Represent C1~C12Straight chained alkyl；L7、L8H or F is represented independently of one another；Z represent F, CF3、OCF3Or OCF2H。
Preferably, one or more of the compound that formula VII is represented in 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 is 100%), the compound representated by formula VIII is in the composition Content be preferably 0~8%, more preferably 2~8% or 6%.The formula VIII is as follows：
In the formula VIII, L9Represent H or F；R11、R12C is represented independently of one another1~C12Straight chained alkyl.
Preferably, one or more of the compound that formula VIII is represented in following VIII-A~VIII-B：
In the VIII-A~VIII-B, R11、R12C is represented independently of one another1~C7Straight chained alkyl；It is highly preferred that R11、 R12C is represented independently of one another2~C5Straight chained alkyl.
In any one liquid-crystal composition (total amount is 100%), compound representated by formula IX is in the composition Content is preferably 0~10%, and more preferably 10%.The formula IX is as follows：
In the formula IX, R13、R14C is represented independently of one another1~C12Straight chained alkyl.
Preferably, shown in the following IX-A of compound that formula IX is represented：
In the IX-A, R13、R14C is represented independently of one another1~C7Straight chained alkyl；It is highly preferred that R13、R14Each solely On the spot represent C2~C5Straight chained alkyl.
The compound that general formula X of the present invention is represented is biphenyl class polarity monocrystalline, with big dielectric anisotropy and big light Anisotropy is learned, has significant effect for the dielectric anisotropy and optical anisotropy for lifting liquid-crystal composition.It is in office To anticipate (total amount is 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%, more preferably 10~17% or 3~12%.Specifically, the following institute of the 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；A8Represent：
Preferably, one or more of the compound that general formula X is represented in 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, and the structure has big vertical Jie Electricity, also can reach the effect of lifting liquid-crystal composition vertical dielectric.In any one liquid-crystal composition (total amount is 100%), The content of compound in the composition representated by general formula X I 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；
A9Represent：
Preferably, one or more of the compound that general formula X I is represented in 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 the cooperative effect between each component, the present invention is carried out to the composition of each component in the liquid-crystal composition It is preferred that.In the liquid-crystal composition that the present invention is provided, each liquid crystal components sum is 100%.
Specifically, the liquid-crystal composition includes following components in percentage by weight：
1) compound representated by 1%~60% one or more formula I；
2) compound representated by 0.5%~50% one or more formula II；
3) compound representated by 0~80% one or more general formula IIIs；
4) compound representated by 0~80% one or more formula IV；
5) the compound representated by 0~80% one or more formula V~general formula X I
More preferably, the liquid-crystal composition, includes following components in percentage by weight:
1) 1%~21% one or more lead to the compound representated by formula (I)；
2) 0.5%~40% one or more lead to the compound representated by formula (II)；
3) 10%~70% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~60% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 21%~50% one or more lead to the compound representated by formula (I)；
2) 0.5%~15% one or more lead to the compound representated by formula (II)；
3) 15%~50% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~50% one or more lead to the compound representated by formula (V)~formula (XI).
Preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 1%~20.5% one or more lead to the compound representated by formula (I)；
2) 1%~30% one or more lead to the compound representated by formula (II)；
3) 11%~60.5% one or more lead to the compound representated by formula (III)；
4) 0%~25.5% one or more lead to the compound representated by formula (IV)；
5) 3%~55% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 21%~45% one or more lead to the compound representated by formula (I)；
2) 1%~10% one or more lead to the compound representated by formula (II)；
3) 19%~45% one or more lead to the compound representated by formula (III)；
4) 0%~25% one or more lead to the compound representated by formula (IV)；
5) 5%~47% one or more lead to the compound representated by formula (V)~formula (XI).
More preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 3%~45% one or more lead to the compound representated by formula (I)；
2) 0.5%~10% one or more lead to the compound representated by formula (II)；
3) 10%~70% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~60% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 5%~30% one or more lead to the compound representated by formula (I)；
2) 11%~40% one or more lead to the compound representated by formula (II)；
3) 10%~50% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~40% one or more lead to the compound representated by formula (V)~formula (XI).
Preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 5%~39% one or more lead to the compound representated by formula (I)；
2) 1%~10% one or more lead to the compound representated by formula (II)；
3) 11%~60.5% one or more lead to the compound representated by formula (III)；
4) 0%~25.5% one or more lead to the compound representated by formula (IV)；
5) 4%~55% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 9%~20% one or more lead to the compound representated by formula (I)；
2) 11%~30% one or more lead to the compound representated by formula (II)；
3) 13%~47% one or more lead to the compound representated by formula (III)；
4) 0%~24% one or more lead to the compound representated by formula (IV)；
5) 3%~32% one or more lead to the compound representated by formula (V)~formula (XI).
More preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 3%~45% one or more lead to the compound representated by formula (I)；
2) 0.5%~40% one or more lead to the compound representated by formula (II)；
3) 10%~40% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~60% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 3%~45% one or more lead to the compound representated by formula (I)；
2) 0.5%~35% one or more lead to the compound representated by formula (II)；
3) 41%~70% one or more lead to the compound representated by formula (III)；
4) 0%~30% one or more lead to the compound representated by formula (IV)；
5) 3%~40% one or more lead to the compound representated by formula (V)~formula (XI).
Preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 5%~39% one or more lead to the compound representated by formula (I)；
2) 1%~30% one or more lead to the compound representated by formula (II)；
3) 11%~40% one or more lead to the compound representated by formula (III)；
4) 0%~25.5% one or more lead to the compound representated by formula (IV)；
5) 3%~55% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 5%~38% one or more lead to the compound representated by formula (I)；
2) 1%~30% one or more lead to the compound representated by formula (II)；
3) 41%~60.5% one or more lead to the compound representated by formula (III)；
4) 0%~24% one or more lead to the compound representated by formula (IV)；
5) 4%~35% one or more lead to the compound representated by formula (V)~formula (XI).
More preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 3%~45% one or more lead to the compound representated by formula (I)；
2) 0.5%~40% one or more lead to the compound representated by formula (II)；
3) 10%~70% one or more lead to the compound representated by formula (III)；
4) 1%~30% one or more lead to the compound representated by formula (IV)；
5) 1%~45% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 3%~45% one or more lead to the compound representated by formula (I)；
2) 0.5%~35% one or more lead to the compound representated by formula (II)；
3) 10%~70% one or more lead to the compound representated by formula (III)；
4) 10%~60% one or more lead to the compound representated by formula (V)~formula (XI).
Preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：
1) 5%~39% one or more lead to the compound representated by formula (I)；
2) 1%~30% one or more lead to the compound representated by formula (II)；
3) 11%~60.5% one or more lead to the compound representated by formula (III)；
4) 2%~25.5% one or more lead to the compound representated by formula (IV)；
5) 3%~41% one or more lead to the compound representated by formula (V)~formula (XI).
Or：
1) 5%~38% one or more lead to the compound representated by formula (I)；
2) 1%~30% one or more lead to the compound representated by formula (II)；
3) 17%~60% one or more lead to the compound representated by formula (III)；
4) 14%~55% one or more lead to the compound representated by formula (V)~formula (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 formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 14%~47% one or more 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 formula I；
2) compound representated by 4%~30% one or more 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 formula IV；
5) compound representated by 5%~37% one or more formula V~XI.
One of preferred scheme as the present invention, the liquid-crystal composition includes following components in percentage by weight；Wherein, The percentage composition sum shared by compound representated by formula V~XI is 14%~47%：
1) compound representated by 5%~38% one or more formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 0~42% one or more formula V；
5) compound representated by 0~13% one or more formula VI；
6) compound representated by 5~14% one or more formula VII~IX；
7) compound representated by 0~17% one or more general formula Xs.
One of preferred scheme as the present invention, the liquid-crystal composition includes following components in percentage by weight；Wherein, The percentage composition sum shared by compound representated by formula V~XI is 5%~37%：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 4%~30% one or more 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 formula IV；
5) compound representated by 0~22% one or more formula V；
6) compound representated by 0~10% one or more formula VI；
7) compound representated by 0~19% one or more 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, is consisted of the following components in percentage by weight：
1), 18%~35% one or more lead to the compound representated by formula (I)；
2), 2%~30% one or more lead to the compound representated by formula (II)；
3), 37%~45% one or more lead to the compound representated by formula (III)；
4), 16%~25% one or more lead to the compound representated by formula (IV)；
5), 3%~8% one or more lead to the compound representated by formula (VIII).
It is further preferred that liquid-crystal composition provided by the present invention, is consisted of the following components in percentage by weight：
1) compound representated by 22.5%~30% one or more formula I；
2) compound representated by 4%~10% one or more formula II；
3) compound representated by 41%~45% one or more general formula IIIs；
4) compound representated by 17%~24% one or more formula IV；
5) compound representated by 5%~8% one or more formula VIII.
In the liquid-crystal composition that the present invention is provided, synergy can be played between each component, excellent combination property is realized. Specifically, the compound representated by formula I has high positive dielectric anisotropy (+Δ ε), and intersolubility is good, rotation is viscous Spend low feature, excellent combination property；Compound representated by 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 lifted.The present invention on this basis, preferably exists Other components are added in the composition, to improve combination property；Wherein, the two ring structure compounds that general formula III is represented is non- Polar compound, such compound, for reducing the viscosity of system, improving response speed effect significantly, is the liquid for allocating quick response The essential class compound of brilliant mixture；The compound of Formula IVIV is three ring non-polar conformations, and it has big bullet Property constant (K11, K22, K33) and low rotary viscosity, have positive effect for the elastic constant for lifting liquid-crystal composition；Formula The compound that V is represented is three ring polar structures, with larger polarity, and its intersolubility is good, is conducive to improving highly polar I classes With the sex chromosome mosaicism that mixes of non-polar monomer；The compound that formula VI is represented is terphenyl structure, with big optical anisotropy, The optical anisotropy of liquid-crystal composition can effectively be lifted；The compound that formula VII~IX is represented is tetracyclic structure, with big Optical anisotropy and high clearing point performance, have remarkable result for the clearing point and optical anisotropy for lifting composition； General formula X class monocrystalline is biphenyl class polarity monocrystalline, with big dielectric anisotropy and big optical anisotropy, for lifting liquid The dielectric anisotropy and optical anisotropy of crystal composite have significant effect；The compound that general formula X I is represented is miscellaneous as dioxygen Ring class polar compound, the structure has big vertical dielectric, also can reach the effect of lifting liquid-crystal composition vertical dielectric.
The preparation method of liquid-crystal composition of the present invention can be changed two or more using conventional method without specifically limited Compound mixing is produced, such as by mixing different component at high temperature and prepared by method soluble in one another, wherein, by liquid crystal group Compound is dissolved in the solvent for the compound and mixed, and the solvent is then distilled out under reduced pressure；Or it is of the present invention Liquid-crystal composition can be prepared conventionally, and the wherein less component of content is such as dissolved in into content at a higher temperature In larger key component, or each affiliated component dissolved in organic solvent, such as acetone, chloroform or methanol then will be molten Liquid mixing is obtained after removing solvent.
Invention also provides application of the above-mentioned liquid-crystal composition in liquid crystal display device, liquid crystal group of the present invention Compound 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.
Current FFS and IPS has become the display pattern of most main flow, but the asking lowly of the transmitance present in FFS and IPS Topic turns into key issue urgently to be resolved hurrily；Device producer typically by lifting backlight illumination come reach lifting brightness purpose, but by This power consumption caused substantially increases；It is found through experiments that, the liquid-crystal composition with big vertical dielectric has high saturating Rate is crossed, therefore lifting brightness can be reached and do not increase the effect of power consumption.Liquid-crystal composition provided by the present invention has Big vertical dielectric, can effectively lift the light transmission rate of liquid crystal display, particularly in the aobvious of FFS and IPS display patterns Show in device.
Brief description of the drawings
Fig. 1 is comparative example 1 and the light transmission rate contrast schematic diagram of liquid-crystal composition described in embodiment 7；In figure, dotted line generation Table comparative example 1, solid line represents embodiment 7.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to 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 He originates purchased in market buy.
The preparation of liquid-crystal composition is adopted with the following method in the embodiment of the present invention：The preparation of uniform liquid crystal is using 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, generally weighs mixing, heating stirring makes at 60-100 DEG C successively with the order of liquid-crystal compounds fusing point from high to low Obtain each component and melt uniform, then through filtering, revolving, finally encapsulate and produce target sample.
Unless otherwise indicated, percentage is weight percentage in context, and all temperature is degree Celsius to provide.Under use State abbreviation：
△ n are optical anisotropy (25 DEG C), and Δ ε is dielectric anisotropy (25 DEG C, 1000Hz), ε⊥For vertical dielectric (25 DEG C, 1000Hz), Cp is 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 representing, in following examples, unit structure is represented with code shown in following table in liquid-crystal compounds：
By taking following structure as an example：
The structure is represented with code listed by upper table, then it represents that be 4CDUQKF.
For another example following structure:
The structure is represented with code listed by upper table, then it represents that be 5CCPUF.
Embodiment 1
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 1：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 1 of table 1
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 2：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 2 of table 2
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 3：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 3 of table 3
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 4：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 4 of table 4
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 5：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 5 of table 5
Embodiment 6
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 6：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 6 of table 6
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 7：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 7 of table 7
Embodiment 8
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 8：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 8 of table 8
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 9：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 9 of table 9
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 10：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 10 of table 10
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 11：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 11 of table 11
Classification Component Percentage by weight (%) 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
The composition that the embodiment is provided possesses the fast response time, especially shows under low-temperature condition, is suitable for fast Response liquid crystal display device.
Embodiment 12
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 12：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 12 of table 12
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 13：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 13 of table 13
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 14：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 14 of table 14
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 15：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 15 of table 15
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 16：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 16 of table 16
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 17：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 17 of table 17
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 18：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 18 of table 18
Embodiment 19
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 19：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 19 of table 19
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 20：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 20 of table 20
Embodiment 21
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 21：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 21 of table 21
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 22：
The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 22 of table 22
Classification Component Percentage by weight (%) 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
Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 23：
The weight percent of each component when performance parameter in the liquid-crystal composition of the comparative example 1 of table 23
Component Percentage by weight (%) 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, its parameter such as table 24：
Table 24：Comparative example 1 and the performance parameter of embodiment 7
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 can effectively lift the transmission of liquid crystal display relative to the lifting of comparative example 1 11% or so Rate characteristic, plays transmitance lifting 3% or so, its 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 lift liquid crystal display is special Property, specific implementation lifts the parallel dielectric of liquid-crystal composition for addition compound I, adds class ii with negative dielectric Anisotropic compound increases the vertical dielectric of composition, and the rotation for reducing liquid-crystal composition using group iii compound is glued Degree, the liquid-crystal composition with fast corresponding and high transmittance is reached with this, liquid-crystal composition provided by the present invention using with TN, IPS, FFS type liquid crystal display, especially suitable IPS and FFS types 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, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims (10)

1. a kind of positive and negative mixed liquid crystal composition, it is characterised in that include compound and one kind shown in one or more formula I Or compound shown in a variety of formula II；
The formula I is as follows：
In the 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、A2Represent independently of one another：
A3Represent：
N represents 0 or 1；
The formula II is as follows：
In the formula II, R2、R3C is represented independently of one another1~C10Alkyl or alkoxy；L1And L2Hydrogen is represented independently of one another Atom or CH3, and the L in same compound1And L2It is asynchronously CH3。
2. liquid-crystal composition according to claim 1, it is characterised in that the compound representated by formula I is selected from following I-A One or more in~I-AF：
In the I-A~I-AF, R1Represent C1~C7Straight chained alkyl；
Preferably, the compound that formula I is represented is selected from following I-A-1~I-T-4 one or more：
3. liquid-crystal composition according to claim 1 or 2, it is characterised in that the compound that formula II is represented is selected from as follows One or more in II-A~II-K：
In the II-A~II-K, R2、R3C is represented independently of one another1~C7Straight chained alkyl；
Preferably, one or more of the compound that formula II is represented in following II-A-1~II-K-15：
4. the liquid-crystal composition according to claims 1 to 3 any one, it is characterised in that also included in the composition Compound shown in one or more general formula IIIs；
The general formula III is as follows：
R4-A4-A5-R5III；
In the general formula III, A4、A5Trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented independently of one another；R4、R5Independently of one another Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be replaced independently of one another by O or CH=CH；
Preferably, one or more of the compound that general formula III is represented in following III-A~III-C：
In the III-A~III-C, R4、R5C is represented independently of one another1~C7Straight chained alkyl, wherein one or more are non-conterminous CH2It can be replaced independently of one another by O or CH=CH；
It is further preferred that one or more of the compound of general formula III representative in following III-A-1~III-C-25：
5. the liquid-crystal composition according to Claims 1 to 4 any one, it is characterised in that also included in the composition Compound shown in one or more formula IV；
The formula IV is as follows：
In the formula IV, R6Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be independently of one another Replaced by O or CH=CH；R7Represent C1~C12Straight chained alkyl；
A6Represent：
Preferably, one or more of the compound of Formula IVIV in following IV-A~IV-C：
In the IV-A~IV-C, R6C is represented independently of one another2~C7Straight chained alkyl or straight-chain alkenyl；R7Represent C1~C7's Straight chained alkyl.
6. the liquid-crystal composition according to Claims 1 to 5 any one, it is characterised in that also included in the composition Compound shown in compound shown in one or more formula V or/and one or more formula VI；
The formula V is as follows：
In the formula V, R8Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can independently of one another by O or CH=CH substitutions；L3、L4H or F is represented independently of one another；X represents F, CF3、OCF3、OCF2H；
A7Represent：
Preferably, one or more of the compound that the formula V is represented in following V-A~V-N：
In the V-A~V-N, R8Represent C2~C7Straight chained alkyl or straight-chain alkenyl；
The formula VI is as follows：
In the formula VI, R9Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2Can be by O or CH= CH replaces；L5、L6H or F is represented independently of one another, and both differ in same compound；Y represents F, CF3、OCF3、 OCF2H、C1-C5Straight chained alkyl or C2~C5Straight-chain alkenyl；
Preferably, one or more of the compound that the formula VI is represented in following VI-A~VI-G：
In the VI-A~VI-G, R9, Y represent C independently of one another1~C7Straight chained alkyl or C2~C7Straight-chain alkenyl.
7. the liquid-crystal composition according to claim 1~6 any one, it is characterised in that also included in the composition Compound shown in one or more formula VII~IX；
The formula VII is as follows：
In the formula VII, R10Represent C1~C12Straight chained alkyl；L7、L8H or F is represented independently of one another；Z represents F, CF3、 OCF3Or OCF2H；
Preferably, one or more of the compound that the formula VII is represented in following VII-A~VII-F：
In the VII-A~VII-F, R10Represent C1~C7Straight chained alkyl；
The formula VIII is as follows：
In the formula VIII, L9Represent H or F；R11、R12C is represented independently of one another1~C12Straight chained alkyl；
Preferably, one or more of the compound that the formula VIII is represented in following VIII-A~VIII-B：
In the VIII-A~VIII-B, R11、R12C is represented independently of one another1~C7Straight chained alkyl；
The formula IX is as follows：
In the formula IX, R13、R14C is represented independently of one another1~C12Straight chained alkyl；
Preferably, shown in the following IX-A of compound that the formula IX is represented：
In the IX-A, R13、R14C is represented independently of one another1~C7Straight chained alkyl.
8. the liquid-crystal composition according to claim 1~7 any one, it is characterised in that also included in the composition The compound shown in compound or/and one or more general formula X I shown in one or more general formula Xs；
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；A8Represent
Preferably, one or more of the compound that the general formula X is represented in following X-A~X-L：
In the X-A~X-L, R15Represent C1~C7Straight chained alkyl；
The general formula X I is as follows：
In the general formula X I, R16Represent C1~C12Straight chained alkyl；A9Represent： Preferably, one or more of the compound that the general formula X I is represented in following XI-A~XI-C：
In the XI-A~XI-C, R16Represent C1~C7Straight chained alkyl.
9. the liquid-crystal composition according to claim 1~8 any one, it is characterised in that contain including following weight percent The composition of amount：
1) compound representated by 1%~60% one or more formula I；
2) compound representated by 0.5%~50% one or more formula II；
3) compound representated by 0~80% one or more general formula IIIs；
4) compound representated by 0~80% one or more formula IV；
5) compound representated by 0~80% one or more formula V~general formula X I；
Or：
1) compound representated by 1%~21% one or more formula I；
2) compound representated by 0.5%~40% one or more formula II；
3) compound representated by 10%~70% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 1%~60% one or more formula V~general formula X I；
Or：
1) compound representated by 21%~50% one or more formula I；
2) compound representated by 0.5%~15% one or more formula II；
3) compound representated by 15%~50% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 1%~50% one or more formula V~general formula X I；
Or：
1) compound representated by 1%~20.5% one or more formula I；
2) compound representated by 1%~30% one or more formula II；
3) compound representated by 11%~60.5% one or more general formula IIIs；
4) compound representated by 0%~25.5% one or more formula IV；
5) compound representated by 3%~55% one or more formula V~general formula X I；
Or：
1) compound representated by 21%~45% one or more formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 19%~45% one or more general formula IIIs；
4) compound representated by 0%~25% one or more formula IV；
5) compound representated by 5%~47% one or more formula V~general formula X I；
Or：
1) compound representated by 3%~45% one or more formula I；
2) compound representated by 0.5%~10% one or more formula II；
3) compound representated by 10%~70% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 1%~60% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~30% one or more formula I；
2) compound representated by 11%~40% one or more formula II；
3) compound representated by 10%~50% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 1%~40% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 11%~60.5% one or more general formula IIIs；
4) compound representated by 0%~25.5% one or more formula IV；
5) compound representated by 4%~55% one or more formula V~general formula X I；
Or：
1) compound representated by 9%~20% one or more formula I；
2) compound representated by 11%~30% one or more formula II；
3) compound representated by 13%~47% one or more general formula IIIs；
4) compound representated by 0%~24% one or more formula IV；
5) compound representated by 3%~32% one or more formula V~general formula X I；
Or：
1) compound representated by 3%~45% one or more formula I；
2) compound representated by 0.5%~40% one or more formula II；
3) compound representated by 10%~40% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 1%~60% one or more formula V~general formula X I；
Or：
1) compound representated by 3%~45% one or more formula I；
2) compound representated by 0.5%~35% one or more formula II；
3) compound representated by 41%~70% one or more general formula IIIs；
4) compound representated by 0%~30% one or more formula IV；
5) compound representated by 3%~40% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 1%~30% one or more formula II；
3) compound representated by 11%~40% one or more general formula IIIs；
4) compound representated by 0%~25.5% one or more formula IV；
5) compound representated by 3%~55% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~38% one or more formula I；
2) compound representated by 1%~30% one or more formula II；
3) compound representated by 41%~60.5% one or more general formula IIIs；
4) compound representated by 0%~24% one or more formula IV；
5) compound representated by 4%~35% one or more formula V~general formula X I；
Or：
1) compound representated by 3%~45% one or more formula I；
2) compound representated by 0.5%~40% one or more formula II；
3) compound representated by 10%~70% one or more general formula IIIs；
4) compound representated by 1%~30% one or more formula IV；
5) compound representated by 1%~45% one or more formula V~general formula X I；
Or：
1) compound representated by 3%~45% one or more formula I；
2) compound representated by 0.5%~35% one or more formula II；
3) compound representated by 10%~70% one or more general formula IIIs；
4) compound representated by 10%~60% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 1%~30% one or more formula II；
3) compound representated by 11%~60.5% one or more general formula IIIs；
4) compound representated by 2%~25.5% one or more formula IV；
5) compound representated by 3%~41% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~38% one or more formula I；
2) compound representated by 1%~30% one or more formula II；
3) compound representated by 17%~60% one or more general formula IIIs；
4) compound representated by 14%~55% one or more formula V~general formula X I；
Or：
1) compound representated by 5%~38% one or more formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 14%~47% one or more formula V~XI；
Or：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 4%~30% one or more 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 formula IV；
5) compound representated by 5%~37% one or more formula V~XI；
Or：
1) compound representated by 5%~38% one or more formula I；
2) compound representated by 1%~10% one or more formula II；
3) compound representated by 21%~60% one or more general formula IIIs；
4) compound representated by 0~42% one or more formula V；
5) compound representated by 0~13% one or more formula VI；
6) compound representated by 5~14% one or more formula VII~IX；
7) compound representated by 0~17% one or more general formula Xs；
Wherein, the percentage composition sum shared by the compound representated by formula V~XI is 14%~47%；
Or：
1) compound representated by 5%~39% one or more formula I；
2) compound representated by 4%~30% one or more 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 formula IV；
5) compound representated by 0~22% one or more formula V；
6) compound representated by 0~10% one or more formula VI；
7) compound representated by 0~19% one or more 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 percentage composition sum shared by the compound representated by formula V~XI is 5%~37%；
Or：
1) compound representated by 18%~35% one or more formula I；
2) compound representated by 2%~30% one or more formula II；
3) compound representated by 37%~45% one or more general formula IIIs；
4) compound representated by 16%~25% one or more formula IV；
5) compound representated by 3%~8% one or more formula VIII；
Or：
1) compound representated by 22.5%~30% one or more formula I；
2) compound representated by 4%~10% one or more formula II；
3) compound representated by 41%~45% one or more general formula IIIs；
4) compound representated by 17%~24% one or more formula IV；
5) compound representated by 5%~8% one or more formula VIII.
10. the application of positive and negative mixed liquid crystal composition in a display device described in claim 1~9 any one, preferably exists Application in FFS and IPS mode displays.
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