CN109722256A - A kind of liquid-crystal composition and its application - Google Patents
A kind of liquid-crystal composition and its application Download PDFInfo
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Abstract
The present invention relates to a kind of fast-response liquid-crystal compositions, include compound representated by compound representated by compound representated by least one or more of general formula I, one or more general formula II and one or more general formula IIIs.Liquid-crystal composition of the present invention has low rotary viscosity, big elastic constant, good low temperature intersolubility and fast response speed, it can be used for the fast-response liquid crystal display of plurality of display modes, its use in TN, IPS or FFS mode display can be obviously improved liquid crystal display display effect, be particularly suitable for IPS and FFS mode liquid crystal display.
Description
Technical field
The present invention relates to liquid crystal material and its application field, liquid crystal material provided by the present invention is nematic liquid crystal combination
Object.
Background technique
Currently, liquid crystal is widely applied in field of information display, while the application in optical communication also achieves one
Fixed progress (S.T.Wu, D.K.Yang.Reflective Liquid Crystal Displays.Wiley, 2001).It is close several
Year, the application field of liquid-crystal compounds significantly widens kinds of displays part, electro-optical device, electronic component, sensor etc.,
Nematic liquid crystal compound obtains most commonly used application in flat-panel monitor, especially for tft active matrix
In system.
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 (cholesterylbenzoate).
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.Zocher was obtained in foundation continuum theory in 1933
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,
V.Freedericksz and V.Zolinao discovery nematic liquid crystal is under electric field or magnetic fields, and deformation occurs and there are voltages
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 Twisred Nematic: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, LCD product technology is mature, the technologies such as visual angle, resolution ratio, color saturation and brightness are successfully solved
Problem, display performance already close to or be more than CRT monitor.Large scale and small-medium size LCD respective field gradually
Occupy the dominant position of flat-panel monitor.But (viscosity is high) is restricted by liquid crystal material itself, cause the response time to become shadow
Ring the principal element of Performance Monitor.
Specifically, the response time of liquid crystal is limited to the rotary viscosity γ 1 and elastic constant of liquid crystal, liquid crystal group is reduced
It closes the rotary viscosity of object and promotes elastic constant for the response time of reduction liquid crystal display, accelerate the response of liquid crystal display
Speed has significant effect.
Summary of the invention
The purpose of the present invention is to provide a kind of fast-response liquid-crystal composition, the big elastic constant of the liquid-crystal composition and low
Rotary viscosity, have the fast response time, the response time of liquid crystal display can be greatly improved；In addition, big elasticity is often
Number can promote liquid crystal display image retention to restore, and promote the image retention performance of liquid crystal display, improve the quality of liquid crystal display.
The liquid-crystal composition includes compound representated by least one or more of general formula I, one or more general formula II
Compound representated by representative compound and one or more general formula IIIs；
Fluoro terphenyl structure compound representated by general formula I provided by the invention, the general formula I specifically:
In the general formula I, R1Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can respectively solely
On the spot replaced O, S or CH=CH；X1Represent F, CF3、OCF3；
Compound representated by general formula II provided by the invention is twin nuclei, the general formula II specifically:
In the general formula II, R2、R3It is independently represented each other C1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be each independently replaced O, S or CH=CH；A1、A2It is independently represented each other trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-
Phenylene；
Compound representated by general formula III provided by the present invention is Terphenyls compound, and the general formula III is specific
Are as follows:
In the general formula III, R4、R5It is independently represented each other C1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be each independently replaced O, S or CH=CH.
Compound representated by general formula I has big optical anisotropy and big dielectric anisotropy.The general formula I's
Compound is the one or more of structure shown in Formulas I A~IC:
In the Formulas I A~IC, R1Represent C1~C7Straight chained alkyl；
Preferably, in the Formulas I A~IC, R1Represent C1~C5Straight chained alkyl；
It is highly preferred that compound representated by the general formula I is selected from Formulas I A1~IA5, Formulas I B1~IB5 or Formulas I C1~IC5
The one or more of representative compound:
It is further preferred that compound representated by the general formula I be selected from one of IA2, IA3, IA5, IC2, IC3 or
It is a variety of；Compound representated by the particularly preferred general formula I is one or both of IA2, IA3.
Compound representated by general formula II provided by the present invention has low-down rotary viscosity, the change of the general formula II
Closing object is the one or more of structure shown in Formula II A~IIC:
In the Formula II A~IIC, R2Represent C1~C7Straight chained alkyl；R3Represent C1~C7Straight chained alkyl, straight chain alcoxyl
Base or C2~C7Straight-chain alkenyl；
Preferably, R3Represent C1~C5Straight chained alkyl, unbranched alkoxy or C2~C5Straight-chain alkenyl；
It is highly preferred that compound representated by the general formula II is selected from Formula II A1~IIA38, Formula II B1~IIB24 or formula
One of IIC1~IIC38 or a variety of:
It is further preferred that compound representated by the general formula II be selected from Formula II A2, IIA4, IIA6, IIA8, IIA14,
In IIA22, IIA26, IIA27, IIB14, IIB18, IIB22, IIC2, IIC4, IIC6, IIC22, IIC26, IIC29, IIC30
It is one or more；Compound representated by the particularly preferred general formula II be selected from Formula II A2, IIA6, IIA14, IIB22,
One of IIC4, IIC29, IIC30 or a variety of.
Compound representated by general formula III has big optical anisotropy, and the compounds of formula III is selected from formula
One of IIIA~IIIC or a variety of:
In the formula III A~IIIC, R4、R5It is independently represented each other C1~C7Straight chained alkyl；
Preferably, in the formula III A~IIIC, R4、R5It is independently represented each other C1~C5Straight chained alkyl；
It is highly preferred that compound representated by general formula III is selected from formula III A1~IIIA16, formula III B1~IIIB4 or formula
One of IIIC1~IIIC4 or a variety of:
It is further preferred that compound representated by the general formula III be selected from IIIA2, IIIA3, IIIA4, IIIA6,
One of IIIB1, IIIB2, IIIB3, IIIC1, IIIC2 or a variety of；Compound representated by particularly preferred general formula III is selected from
One of IIIA2, IIIA3, IIIA4, IIIB1, IIIC1 or a variety of.
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula IV:
In the general formula IV, R6、R7It is independently represented each other C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12's
Straight-chain alkenyl；A3Represent trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
Preferably, compound representated by the general formula IV is selected from one of IVA~IVC or a variety of:
In the general formula IVA~IVC, R6Represent C2~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R7Represent C1~C8's
Straight chained alkyl；
It is highly preferred that compound representated by the general formula IV is selected from formula IV A1~IVA18, formula IV B1~IVB22 or formula
One of IVC1~IVC30 or a variety of:
It is further preferred that compound representated by the general formula IV be selected from formula IV A1, IVA2, IVA8, IVA12,
One of IVA16, IVB5, IVB12, IVB16, IVB18 or a variety of；Compound choosing representated by the particularly preferred general formula IV
From one of formula IV A1, IVA2, IVA8, IVB12, IVB16 or a variety of.
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula V:
In the general formula V, R8Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；A4It represents
Trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
Preferably, compound representated by the general formula V is selected from one of Formula V A~VD or a variety of:
In the Formula V A~VD, R8Represent C1~C7Straight chained alkyl；
It is highly preferred that in the Formula V A~VD, R8Represent C2~C5Straight chained alkyl；
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula VI:
In the general formula VI, R9Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；L1Generation
Table F or H；A5Trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented, wherein one or more H atoms on phenyl ring can be by F original
Son replaces；
Preferably, compound representated by the general formula VI is selected from one of Formula IV A~VIE or a variety of:
In the Formula IV A~VIE, R9Represent C1~C7Straight chained alkyl, unbranched alkoxy or C2~C7Straight-chain alkenyl；
It is highly preferred that in the Formula IV A~VIE, R9Represent C2~C5Straight chained alkyl or straight-chain alkenyl.
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula VII:
In the general formula VII, R10Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；L2、L3It is respectively independent
Ground represents H or F；
Compound representated by general formula VII has high clearing point and biggish dielectric anisotropy,
Preferably, compound representated by the general formula VII is selected from one of Formula VII A~VIIC or a variety of:
In the Formula VII A~VIIC, R10Represent C1~C7Straight chained alkyl；
It is highly preferred that in the Formula VII A~VIIC, R10It is independently represented each other and represents C2~C5Straight chained alkyl.
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula VIII:
In the general formula VIII, R11、R12It is independently represented each other C1~C12Straight chained alkyl or C2~C12Straight chain alkene
Base；L4Represent H or F；
Compound representated by general formula VIII has biggish optical anisotropy and high clearing point；
Preferably, compound representated by the general formula VIII is selected from one of Formula VIII A~VIIIB or a variety of:
In the Formula VIII A~VIIIB, R11、R12It is independently represented each other C1~C7Straight chained alkyl；
It is highly preferred that in the Formula VIII A~VIIIB, R11、R12It is independently represented each other C2~C5Straight chained alkyl.
Liquid-crystal composition provided by the present invention further includes compound representated by one or more general formula IX:
In the general formula IX, R13Represent C1~C12Straight chained alkyl；N=0 or 1；A6、A7、A8It is independently represented each other:
Preferably, compound representated by the general formula IX is selected from one of Formula IX A~IXH or a variety of:
In the Formula IX A~IXH, R13Represent C1~C7Straight chained alkyl；
It is highly preferred that in the Formula IX A~IXH, R13Represent C2~C5Straight chained alkyl.
In order to improve the synergistic effect between all types of compounds, the present invention is to each component in provided liquid-crystal composition
Percentage composition carry out it is preferred.
Specifically, including following components in percentage by weight in liquid-crystal composition of the present invention:
Compound representated by (1) 1~30 part of general formula I；
Compound representated by (2) 30~70% general formula II；
Compound representated by (3) 1~45% general formula IIIs；
Compound representated by (4) 0~40% general formula IV；
Compound representated by (5) 0~15% general formula V；
Compound representated by (6) 0~20% general formula VI；
Compound representated by (7) 0~20% general formula VII；
Compound representated by (8) 0~15% general formula VIII；
Compound representated by (9) 0~40% general formula IX；
Include following components in percentage by weight in the liquid-crystal composition present invention further propose that ground:
Compound representated by (1) 3~20% general formula I；
Compound representated by (2) 40~65% general formula II；
Compound representated by (3) 1~32% general formula IIIs；
Compound representated by (4) 0~23% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~15% general formula VI；
Compound representated by (7) 0~14% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 0~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 2~27% general formula IIIs；
Compound representated by (4) 0~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~10% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Include following components in percentage by weight in the liquid-crystal composition present invention further propose that ground:
Compound representated by (1) 3~20% general formula I；
Compound representated by (2) 45~65% general formula II；
Compound representated by (3) 1~15% general formula IIIs；
Compound representated by (4) 1~32% general formula IV；
Compound representated by (5) 0~7% general formula V；
Compound representated by (6) 0~7% general formula VI；
Compound representated by (7) 0~10% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 0~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~60% general formula II；
Compound representated by (3) 2~10% general formula IIIs；
Compound representated by (4) 10~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Include following components in percentage by weight in the liquid-crystal composition present invention further propose that ground:
Compound representated by (1) 3~15% general formula I；
Compound representated by (2) 40~60% general formula II；
Compound representated by (3) 10~32% general formula IIIs；
Compound representated by (4) 0~15% general formula VI；
Compound representated by (5) 0~15% general formula VII；
Compound representated by (6) 1~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~11% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 14~27% general formula IIIs；
Compound representated by (4) 0~10% general formula VI；
Compound representated by (5) 0~9% general formula VII；
Compound representated by (6) 2~18% general formula IX；
Include following components in percentage by weight in the liquid-crystal composition present invention further propose that ground:
Compound representated by (1) 3~21% general formula I；
Compound representated by (2) 40~65% general formula II；
Compound representated by (3) 2~32% general formula IIIs；
Compound representated by (4) 0~32% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~15% general formula VI；
Compound representated by (7) 0~14% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 1~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 3~27% general formula IIIs；
Compound representated by (4) 0~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~10% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 2~20% general formula IX；
Include following components in percentage by weight in the liquid-crystal composition present invention further propose that ground:
Compound representated by (1) 5~15% general formula I；
Compound representated by (2) 55~65% general formula II；
Compound representated by (3) 1~9% general formula IIIs；
Compound representated by (4) 10~23% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~7% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 9~10% general formula I；
Compound representated by (2) 59~60% general formula II；
Compound representated by (3) 2~6% general formula IIIs；
Compound representated by (4) 15~19% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~6% general formula VII；
Compound representated by (8) 0~5% general formula VIII.
As a preferred solution of the present invention, the liquid-crystal composition includes following components in percentage by weight:, the liquid crystal
Composition includes following components in percentage by weight:
Compound representated by (1) 9~10% general formula I；
Compound representated by (2) 57~60% general formula II；
Compound representated by (3) 3~6% general formula IIIs；
Compound representated by (4) 19~27% general formula IV；
Compound representated by (5) 3~5% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~60% general formula II；
Compound representated by (3) 3~10% general formula IIIs；
Compound representated by (4) 10~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~4% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 3~20% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~59% general formula II；
Compound representated by (3) 2~10% general formula IIIs；
Compound representated by (4) 10~15% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 4~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~51% general formula II；
Compound representated by (3) 4~10% general formula IIIs；
Compound representated by (4) 10~14% general formula IV；
Compound representated by (5) 0~4% general formula VI；
Compound representated by (6) 0~7% general formula VII；
Compound representated by (7) 4~5% general formula VIII；
Compound representated by (8) 9~20% general formula IX.
Compound representated by liquid-crystal composition formula of I provided by inventing is how fluorine-substituted terphenyl structure chemical combination
Object, such compound have big dielectric anisotropy and optical anisotropy, for promoted liquid-crystal composition dielectric respectively to
Anisotropic and optical anisotropy is highly effective, and compound representated by general formula II is dicyclohexyl structure, has low rotation viscous
Degree and excellent intersolubility feature, are the essential components of fast-response liquid crystal display, and compound representated by general formula III is three
Biphenyl structural has big optical anisotropy；Structure representated by general formula IV is tricyclic neutrality liquid-crystal compounds, such chemical combination
Object clearing point with higher and big elastic constant have the clearing point and elastic constant that promote liquid-crystal composition very much
Effect.
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.
Liquid-crystal composition of the present invention have low rotary viscosity, big elastic constant, good low temperature intersolubility and
Fast response speed can be used for the fast-response liquid crystal display of plurality of display modes, in TN, IPS or FFS mode display
Using liquid crystal display display effect can be obviously improved, it is particularly suitable for IPS and FFS mode liquid crystal display.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Unless otherwise indicated, percentage is weight percentage in the present invention；Temperature unit is degree Celsius；△ n represents optics
Anisotropy (25 DEG C)；△ ε represents dielectric anisotropy (25 DEG C, 1000Hz)；γ 1 represents rotary viscosity (mPa.s, 25 DEG C)；
Cp represents the clearing point (DEG C) of liquid-crystal composition；K11、K22、K33Respectively represent splay, distortion and bend elastic constant (pN, 25
℃)。
In following embodiment, unit structure code shown in table 1 is indicated in liquid-crystal compounds.
Table 1: the group structure code of liquid-crystal compounds
By taking following compound structure as an example:
It indicates are as follows: 3PGUCF3；
It indicates are as follows: 5CCPUF.
In following embodiment, the preparation of liquid-crystal composition is all made of heat of solution method, comprising the following steps: is pressed with balance
Weight percent weighs liquid-crystal compounds, wherein weighing addition sequence without particular requirement, usually with liquid-crystal compounds fusing point by height
Mixing is successively weighed to low sequence, heating stirring melts each component uniformly at 60~100 DEG C, using filter, rotate,
It finally encapsulates up to target sample.
In following embodiment, the performance parameter of the weight percent of each component when liquid-crystal composition is shown in liquid-crystal composition
Following table.
Embodiment 1
Table 2: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 2
Table 3: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 3
Table 4: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 4
Table 5: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 5
Table 6: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 6
Table 7: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 7
Table 8: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 8
Table 9: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 9
Table 10: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 10
Table 11: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 11
Table 12: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 12
Table 13: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 13
Table 14: the weight percent of each component when performance parameter in liquid-crystal composition
Comparative example 1
Table 15: the weight percent of each component when performance parameter in liquid-crystal composition
Embodiment 1 has lower rotary viscosity and bigger elastic constant relative to comparative example 1, has response faster
Time；On the other hand, big elastic constant can promote liquid crystal display image retention resume speed, improve the image retention of liquid crystal display
Performance.
As seen from the above embodiment, liquid-crystal composition provided by the present invention has low rotary viscosity, high resistivity, fits
The optical anisotropy of conjunction, good low temperature intersolubility, big elastic constant and excellent photostability and thermal stability, can
The response time for reducing liquid crystal display, to solve the problems, such as that liquid crystal display response speed is slow.Therefore, provided by the present invention
Liquid-crystal composition be suitable for fast-response TN, IPS and FFS type TFT liquid crystal display device, be particularly suitable for IPS and FFS liquid crystal
Display device.
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 (10)
1. a kind of fast-response liquid-crystal composition, which is characterized in that comprising compound representated by least one or more of general formula I,
Compound representated by compound representated by one or more general formula II and one or more general formula IIIs；
The general formula I specifically:
In the general formula I, R1Represent C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2It can be each independently
Replaced O, S or CH=CH；X1Represent F, CF3、OCF3；
The general formula II specifically:
In the general formula II, R2、R3It is independently represented each other C1~C12Straight chained alkyl, wherein one or more non-conterminous CH2
It can be each independently replaced O, S or CH=CH；A1、A2It is independently represented each other trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-Asia benzene
Base；
The general formula III specifically:
In the general formula III, R4、R5It is independently represented each other C1~C12Straight chained alkyl, wherein one or more are non-conterminous
CH2It can be each independently replaced O, S or CH=CH.
2. liquid crystal components object according to claim 1, which is characterized in that the compounds of formula I is Formulas I A~IC institute
Show the one or more of structure:
In the Formulas I A~IC, R1Represent C1~C7Straight chained alkyl；
Preferably, in the Formulas I A~IC, R1Represent C1~C5Straight chained alkyl；
It is highly preferred that compound representated by the general formula I is selected from Formulas I A1~IA5, Formulas I B1~IB5 or Formulas I C1~IC5 institute's generation
The one or more of the compound of table:
It is further preferred that compound representated by the general formula I is selected from one of IA2, IA3, IA5, IC2, IC3 or more
Kind；Compound representated by the particularly preferred general formula I is one or both of IA2, IA3.
3. liquid-crystal composition according to claim 1 or 2, which is characterized in that the compounds of formula II be Formula II A~
Structure shown in IIC it is one or more:
In the Formula II A~IIC, R2Represent C1~C7Straight chained alkyl；R3Represent C1~C7Straight chained alkyl, unbranched alkoxy or
C2~C7Straight-chain alkenyl；
Preferably, R3Represent C1~C5Straight chained alkyl, unbranched alkoxy or C2~C5Straight-chain alkenyl；
It is highly preferred that compound representated by the general formula II is selected from Formula II A1~IIA38, Formula II B1~IIB24 or Formula II C1
One of~IIC38 or a variety of:
It is further preferred that compound representated by the general formula II be selected from Formula II A2, IIA4, IIA6, IIA8, IIA14,
In IIA22, IIA26, IIA27, IIB14, IIB18, IIB22, IIC2, IIC4, IIC6, IIC22, IIC26, IIC29, IIC30
It is one or more；Compound representated by the particularly preferred general formula II be selected from Formula II A2, IIA6, IIA14, IIB22,
One of IIC4, IIC29, IIC30 or a variety of.
4. any liquid-crystal composition according to claim 1~3, which is characterized in that the compounds of formula III is selected from
One of formula III A~IIIC or a variety of:
In the formula III A~IIIC, R4、R5It is independently represented each other C1~C7Straight chained alkyl；
Preferably, in the formula III A~IIIC, R4、R5It is independently represented each other C1~C5Straight chained alkyl；
It is highly preferred that compound representated by general formula III is selected from formula III A1~IIIA16, formula III B1~IIIB4 or formula III C1
One of~IIIC4 or a variety of:
It is further preferred that compound representated by the general formula III be selected from IIIA2, IIIA3, IIIA4, IIIA6, IIIB1,
One of IIIB2, IIIB3, IIIC1, IIIC2 or a variety of；Compound representated by particularly preferred general formula III be selected from IIIA2,
One of IIIA3, IIIA4, IIIB1, IIIC1 or a variety of.
5. liquid-crystal composition according to any one of claims 1 to 4, which is characterized in that further include one or more general formula IV
Representative compound:
In the general formula IV, R6、R7It is independently represented each other C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight chain
Alkenyl；A3Represent trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
And/or further include compound representated by one or more general formula V:
In the general formula V, R8Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；A4It represents trans-
Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；
Preferably, compound representated by the general formula IV is selected from one of IVA~IVC or a variety of:
In the general formula IVA~IVC, R6Represent C2~C7Straight chained alkyl or C2~C7Straight-chain alkenyl；R7Represent C1~C8Straight chain
Alkyl；
And/or compound representated by the general formula V is selected from one of Formula V A~VD or a variety of:
In the Formula V A~VD, R8Represent C1~C7Straight chained alkyl；
It is highly preferred that compound representated by the general formula IV be selected from formula IV A1~IVA18, formula IV B1~IVB22 or formula IV C1~
One of IVC30 or a variety of:
And/or in the Formula V A~VD, R8Represent C2~C5Straight chained alkyl；
It is further preferred that compound representated by the general formula IV be selected from formula IV A1, IVA2, IVA8, IVA12, IVA16,
One of IVB5, IVB12, IVB16, IVB18 or a variety of；Compound representated by the particularly preferred general formula IV is selected from formula
One of IVA1, IVA2, IVA8, IVB12, IVB16 or a variety of.
6. any liquid crystal display according to claim 1~5, which is characterized in that further include one or more general formula VI
Representative compound:
In the general formula VI, R9Represent C1~C12Straight chained alkyl, unbranched alkoxy or C2~C12Straight-chain alkenyl；L1Represent F or
H；A5Trans- Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented, wherein one or more H atoms on phenyl ring can be taken by F atom
Generation；
And/or further include compound representated by one or more general formula VII:
In the general formula VII, R10Represent C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；L2、L3It is independently represented each other
H or F；
Preferably, compound representated by the general formula VI is selected from one of Formula IV A~VIE or a variety of:
In the Formula IV A~VIE, R9Represent C1~C7Straight chained alkyl, unbranched alkoxy or C2~C7Straight-chain alkenyl；
And/or compound representated by the general formula VII is selected from one of Formula VII A~VIIC or a variety of:
In the Formula VII A~VIIC, R10Represent C1~C7Straight chained alkyl；
It is highly preferred that in the Formula IV A~VIE, R9Represent C2~C5Straight chained alkyl or straight-chain alkenyl；
And/or in the Formula VII A~VIIC, R10It is independently represented each other and represents C2~C5Straight chained alkyl.
7. any liquid-crystal composition according to claim 1~6, which is characterized in that further include one or more general formulas
Compound representated by VIII:
In the general formula VIII, R11、R12It is independently represented each other C1~C12Straight chained alkyl or C2~C12Straight-chain alkenyl；L4Generation
Table H or F；
And/or further include compound representated by one or more general formula IX:
In the general formula IX, R13Represent C1~C12Straight chained alkyl；N=0 or 1；A6、A7、A8It is independently represented each other:
Preferably, compound representated by the general formula VIII is selected from one of Formula VIII A~VIIIB or a variety of:
In the Formula VIII A~VIIIB, R11、R12It is independently represented each other C1~C7Straight chained alkyl；
And/or compound representated by the general formula IX is selected from one of Formula IX A~IXH or a variety of:
In the Formula IX A~IXH, R13Represent C1~C7Straight chained alkyl；
It is highly preferred that in the Formula VIII A~VIIIB, R11、R12It is independently represented each other C2~C5Straight chained alkyl；
And/or in the Formula IX A~IXH, R13Represent C2~C5Straight chained alkyl.
8. liquid-crystal composition according to claims 1 to 7, which is characterized in that comprising following heavy in the liquid-crystal composition
Measure the component of percentage:
Compound representated by (1) 1~30 part of general formula I；
Compound representated by (2) 30~70% general formula II；
Compound representated by (3) 1~45% general formula IIIs；
Compound representated by (4) 0~40% general formula IV；
Compound representated by (5) 0~15% general formula V；
Compound representated by (6) 0~20% general formula VI；
Compound representated by (7) 0~20% general formula VII；
Compound representated by (8) 0~15% general formula VIII；
Compound representated by (9) 0~40% general formula IX；
Or, including following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 3~20% general formula I；
Compound representated by (2) 40~65% general formula II；
Compound representated by (3) 1~32% general formula IIIs；
Compound representated by (4) 0~23% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~15% general formula VI；
Compound representated by (7) 0~14% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 0~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 2~27% general formula IIIs；
Compound representated by (4) 0~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~10% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Or, including following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 3~20% general formula I；
Compound representated by (2) 45~65% general formula II；
Compound representated by (3) 1~15% general formula IIIs；
Compound representated by (4) 1~32% general formula IV；
Compound representated by (5) 0~7% general formula V；
Compound representated by (6) 0~7% general formula VI；
Compound representated by (7) 0~10% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 0~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~60% general formula II；
Compound representated by (3) 2~10% general formula IIIs；
Compound representated by (4) 10~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Or, including following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 3~15% general formula I；
Compound representated by (2) 40~60% general formula II；
Compound representated by (3) 10~32% general formula IIIs；
Compound representated by (4) 0~15% general formula VI；
Compound representated by (5) 0~15% general formula VII；
Compound representated by (6) 1~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~11% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 14~27% general formula IIIs；
Compound representated by (4) 0~10% general formula VI；
Compound representated by (5) 0~9% general formula VII；
Compound representated by (6) 2~18% general formula IX；
Or, including following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 3~21% general formula I；
Compound representated by (2) 40~65% general formula II；
Compound representated by (3) 2~32% general formula IIIs；
Compound representated by (4) 0~32% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~15% general formula VI；
Compound representated by (7) 0~14% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Compound representated by (9) 1~25% general formula IX；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 45~60% general formula II；
Compound representated by (3) 3~27% general formula IIIs；
Compound representated by (4) 0~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~10% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 2~20% general formula IX；
Or, including following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 5~15% general formula I；
Compound representated by (2) 55~65% general formula II；
Compound representated by (3) 1~9% general formula IIIs；
Compound representated by (4) 10~23% general formula IV；
Compound representated by (5) 0~8% general formula V；
Compound representated by (6) 0~7% general formula VI；
Compound representated by (7) 0~9% general formula VII；
Compound representated by (8) 0~8% general formula VIII；
Preferably, include following components in percentage by weight in the liquid-crystal composition:
Compound representated by (1) 9~10% general formula I；
Compound representated by (2) 59~60% general formula II；
Compound representated by (3) 2~6% general formula IIIs；
Compound representated by (4) 15~19% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~6% general formula VII；
Compound representated by (8) 0~5% general formula VIII.
9. liquid-crystal composition according to claim 8, which is characterized in that the liquid-crystal composition includes following weight percent
The component of ratio:
Compound representated by (1) 9~10% general formula I；
Compound representated by (2) 57~60% general formula II；
Compound representated by (3) 3~6% general formula IIIs；
Compound representated by (4) 19~27% general formula IV；
Compound representated by (5) 3~5% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~60% general formula II；
Compound representated by (3) 3~10% general formula IIIs；
Compound representated by (4) 10~27% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~4% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 0~5% general formula VIII；
Compound representated by (9) 3~20% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~59% general formula II；
Compound representated by (3) 2~10% general formula IIIs；
Compound representated by (4) 10~15% general formula IV；
Compound representated by (5) 0~5% general formula V；
Compound representated by (6) 0~5% general formula VI；
Compound representated by (7) 0~7% general formula VII；
Compound representated by (8) 4~5% general formula VIII；
Compound representated by (9) 0~20% general formula IX；
Or, the liquid-crystal composition includes following components in percentage by weight:
Compound representated by (1) 4~17% general formula I；
Compound representated by (2) 48~51% general formula II；
Compound representated by (3) 4~10% general formula IIIs；
Compound representated by (4) 10~14% general formula IV；
Compound representated by (5) 0~4% general formula VI；
Compound representated by (6) 0~7% general formula VII；
Compound representated by (7) 4~5% general formula VIII；
Compound representated by (8) 9~20% general formula IX.
10. application of any liquid-crystal composition in fast-response liquid crystal display according to claim 1~9；It is preferred that TN,
Application in IPS or FFS mode display, is particularly suitable for IPS and FFS mode liquid crystal display.
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| CN114437735B (en) * | 2020-11-02 | 2023-05-12 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing pyran and terphenyl and application thereof |
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| CN115612504A (en) * | 2022-09-30 | 2023-01-17 | 重庆汉朗精工科技有限公司 | Positive variable frequency display liquid crystal material |
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