CN103242861B - Liquid crystal composition and application thereof - Google Patents
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Abstract
The invention relates to a liquid crystal composition which contains a pentafluoropropylene ether end group structure liquid crystal compound. The invention further relates to an application of the liquid crystal composition. The liquid crystal composition is excellent in property, has high dielectric anisotropy and low rotary viscosity, and is applicable to liquid crystal displays with display modes of IPS, FFS (fringe field switching), ADS and the like and TN-TFT (twisted nematic-thin film transistor) liquid crystal displays with low driving voltage.
Description
Technical field
The present invention relates to liquid-crystal composition field, specifically, relate to a kind of liquid-crystal composition that contains five fluorine propylene ethers end-group structure liquid crystalline cpds and the application in field of liquid crystal display thereof.
Background technology
As far back as 19th-century second half, the many scholars that comprise each fields such as physics, chemistry, biology have observed some compounds and have varied with temperature the unusual appearance showing.Assert afterwards that the formal time of finding liquid crystal was 1888.This year Austrian botanist Friedrich Reinitzer, in the time studying cholesterol to plant action, found the first liquid crystal material: M-nitro benzoic acid cholesterol (cholesteryl benzoate).Find that between more than 100 year after liquid crystal phenomenon, people are not interrupted the research to it all the time.
In early days, the people such as O.Wiener have found the fresenl theory of double refraction of liquid crystal, and E.Bose has proposed the phase theory of liquid crystal, and V.Grandiean etc. have studied liquid crystal molecular orientation mechanism and texture, etc.Echo mutually with liquid crystal theoretical investigation, phase later 1960s is the golden period of development of liquid crystal science and technology.The nineteen sixty-eight R.Williams of RCA Corp. of the U.S. finds that nematic liquid crystal forms striped farmland under electric field action, and has light scattering phenomenon.G.H.Heilmeir is with develop into dynamic scattering display format by it, and makes first liquid-crystal display (LCD) in the world.
Helfrich in 1971 and Schadt have invented TN(Twisred Nematic, twisted nematic) principle, people utilize TN photovoltaic effect and unicircuit to combine, and are made display device (TN-LCD), for wide prospect has been opened up in the application of liquid crystal.Since the seventies, due to the development of large-scale integrated circuit and liquid crystal material, the people such as the application of liquid crystal aspect demonstration obtained breakthrough development, 1983～1985 years T.Scheffer successively propose super-twist nematic (Super Twisred Nematic:STN) pattern; Active matrix (Active matrix:AM) mode that P.Brody proposed in 1972 is adopted again.Since 1980, the invention of Thin Film Transistor-LCD technology, makes liquid-crystal display become the outstanding person of digital information epoch technique of display, has fundamentally changed the looks of liquid crystal industry.The R.A.SOREF of the U.S. in 1973 proposes liquid crystal photoelectric characteristic under transverse electric field; 1992, German G.Baur research team proposed noun In-Plane Switching first in paper, proposed IPS and was improved visual angle viewpoint, and IPS-LCD panel in 1996 is at first by Japanese Hitachi(Hitachi) Developed.The first-generation IPS of Hitachi indicating meter, visual angle can be promoted to 160 degree, and the reaction times can foreshorten to 40ms.FFS(Fringe Field Switching) technique of display is by the Korea S Hydis(modern times the earliest) research and development of technique of display department, be the innovation to IPS, be also the Development Technology of IPS.Similar with IPS, the electrode of FFS is also in same substrate, but the design to electrode and the selection of material are optimized: change IPS opaque electrode into transparency electrode, and dwindle electrode width and spacing, increased transmittance, visual angle also reaches 180 degree and maximizes.
TFT-LCD technology and initial product are in Europe and produced in USA, but its extensive commercial application is completed by Japan, within 1993, Korea S starts to get involved TFT-LCD industry, and obtain very soon stronger competitive power, the Taiwan of China in 1998 starts to have added the sector, on industry size, almost occupied half of the country by 2005, from integral layout, the critical role of China in this industry constantly manifests at present.
At present, although TFT-LCD product technology is day by day ripe, can successfully solve the technical barriers such as visual angle, resolving power, fullness of shade and brightness, its display performance has approached or has exceeded CRT monitor, large size and small-medium size TFT-LCD indicating meter occupy the dominant position of flat-panel monitor gradually in field separately, but are subject to the restriction of liquid crystal material itself, and it is fast not that TFT-LCD still exists response speed, voltage is low not, the high not many defects of electric charge conservation rate.Therefore, from liquid crystal material, develop the TFT liquid crystal compound of quick response, high electric charge conservation rate, become focus and difficult point in industry.
Making a general survey of the liquid crystal material evolution showing for TFT can find, the exploitation of liquid crystalline cpd is all towards the future development of high electric charge conservation rate, high dielectric anisotropy, excellent low temperature mutual solubility, substitute onto last polyfluoro from initial single fluorine and replace, so afterwards-CF
2the liquid crystalline cpds such as the super polyfluoro replacement of O-bridged bond, ripe liquid crystalline cpd is with stable hexa-atomic aromatic nucleus (as phenyl ring) and hexa-atomic alkyl ring (as hexamethylene ring) composition, and its end bit substituent is mostly alkyl or alkenyl.End bit substituent is that the compound of polyfluoro thiazolinyl has good chemistry and thermostability, and electric field and magnetic field are had to high stability, and low temperature mutual solubility is also very desirable, is suitable for mixed liquid crystal compound.
The involved in the present invention compound that contains polyfluoro thiazolinyl ethers end-group structure, be first disclosed as the Japanese Patent JP2003015547 of Japanese Xu electricity Chemical Co., Ltd, this type of structural compounds has higher dielectric anisotropy and lower rotary viscosity, is suitable for TFT liquid-crystal display and uses.Liquid-crystal composition involved in the present invention, is applied to TFT liquid-crystal display, can solve its response speed fast not, and voltage is low not, the high not many defects of electric charge conservation rate.
Summary of the invention
(1) technical problem that will solve
For the problem that the response speed of LCD existing in prior art is fast not, voltage is low not, electric charge conservation rate is not high enough, the invention provides a kind of liquid-crystal composition that contains five fluorine propenyl ethers end-group structure compounds, there is higher dielectric anisotropy and lower rotary viscosity, be applicable to the liquid crystal indicator of response fast.
Another object of the present invention is to provide the application of described liquid-crystal composition in liquid crystal indicator.
(2) technical scheme
In order to realize the object of the invention, liquid-crystal composition provided by the invention must comprise one or more of compound of logical formula I and logical formula II representative, i.e. 2%≤I+II≤100%.In order to be applicable to the requirement of liquid-crystal display of various size and specification, in liquid-crystal composition, also can contain one or more in the compound of logical formula III, (IV), (V), (VI) and (VII) representative, its each composition weight percentage composition is as follows:
The compound of (1) 1～90% logical formula I representative;
The compound of (2) 1～60% logical formula II representatives;
The compound of (3) 0～70% logical formula III and/or (IV) representative;
The compound of one or more representatives in (4) 0～30% general formulas (V), (VI) and (VII);
Described liquid-crystal composition also comprises by weight the optically-active component that accounts for (1)～(4) component gross weight 0～0.5%.
Wherein, the compound of described logical formula I representative is following structure:
（Ⅰ）
In formula I, R is selected from C
1～C
12alkyl, wherein one or more-CH
2-group can be substituted by-O-; Be selected from-CF of Z
2o-,-C
2h
4-or C-C singly-bound; Ring texture substituent A is selected from trans Isosorbide-5-Nitrae-cyclohexyl, Isosorbide-5-Nitrae-phenylene or Isosorbide-5-Nitrae-pyranyl; L
1～L
5independently selected from F or H atom; M, n, p are integer independent of each other, and 0≤m≤2, and n, p are 0 or 1.
The compound of described logical formula II representative is following structure:
（Ⅱ）
In formula II, R
aand R
bindependently selected from C
1～C
12alkyl, wherein one or more-CH
2-group can be substituted by-O-;
The compound of described logical formula III and (IV) representative is respectively following structure:
（Ⅲ）
（Ⅳ）
In formula III and (IV), R
cand R
dindependently selected from C
1～C
12alkyl, wherein one or more-CH
2-group can be substituted by-O-; L
6be selected from F or H atom; O, s, t represent 1 or 2 independently of one another; Ring texture substituent B and C are independently selected from trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene;
The compound of described general formula (V), (VI) and (VII) representative is respectively following structure:
（Ⅴ）
（Ⅵ）
（Ⅶ）
In formula (V), (VI) and (VII), R
e～R
jindependently selected from C
1～C
12alkyl, wherein one or more-CH
2-group can be substituted by-O-, and one or more H atoms can be substituted by F atom, or R
e～R
jindependently selected from C
1～C
12thiazolinyl; L
7be selected from F or H atom.
In the structural formula of the each component of liquid-crystal composition of the present invention, ring texture substituent A represents the six-membered cyclic substituting group of an Isosorbide-5-Nitrae-replacement, is in particular: trans Isosorbide-5-Nitrae-cyclohexyl, Isosorbide-5-Nitrae-phenylene or Isosorbide-5-Nitrae-pyranyl, and its structure is as follows:
trans Isosorbide-5-Nitrae-cyclohexyl
isosorbide-5-Nitrae-phenylene
isosorbide-5-Nitrae-pyranyl
Ring texture substituent B, C represent the six-membered cyclic substituting group of an Isosorbide-5-Nitrae-replacement, are in particular: trans Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.
In liquid-crystal composition of the present invention, each component preferred weight percentage composition is as follows:
The compound of (1) 5～85% logical formula I representative;
The compound of (2) 14～55% logical formula II representatives;
The compound of (3) 10～65% logical formula III and/or (IV) representative;
The compound of one or more representatives in (4) 2～21% general formulas (V), (VI) and (VII);
Described liquid-crystal composition also comprises by weight the optically-active component that accounts for (1)～(4) component gross weight 0.07～0.3%.
Preferably, in liquid-crystal composition of the present invention, the compound of logical formula I representative be formula (I a), (I b), (I c), (I d), (I e), (I f), (I g), (I h), (I is one or more in represented compound i):
（Ⅰa）
（Ⅰb）
（Ⅰc）
（Ⅰd）
（Ⅰe）
（Ⅰf）
（Ⅰg）
（Ⅰh）
（Ⅰi）
Formula (I a)～(I i) in, R
1～R
8and R ' is independently selected from C
1～C
8alkyl, wherein one or more-CH
2-group can be substituted by-O-; Represent-CF of Z
2o-or C-C singly-bound; L
1～L
4be F or H atom independently.
General formula (I a)～(indication Z in the liquid crystalline cpd of I shown in i), is preferably-CF
2o-, can make compound low temperature mutual solubility improve, but nematic temperature range narrows accordingly, therefore also can be C-C singly-bound and is directly connected, and effectively improves the clearing point of compound.
More preferably, in liquid-crystal composition of the present invention, the compound of logical formula I representative is specially one or more in following formula (I a-1), (I b-1), (I b-2), (I c-1), (I c-2), (I d-1), (I d-2), (I e-1), (I f-1), (I g-1), (I h-1), (I i-1) represented compound:
（Ⅰa-1）
（Ⅰb-1）
（Ⅰb-2）
（Ⅰc-1）
（Ⅰc-2）
（Ⅰd-1）
（Ⅰd-2）
（Ⅰe-1）
（Ⅰf-1）
（Ⅰg-1）
（Ⅰh-1）
（Ⅰi-1）
In formula (I a-1), (I b-1), (I b-2), (I c-1), (I c-2), (I d-1), (I d-2), (I e-1), (I f-1), (I g-1), (I h-1) and (I i-1), R
9～R
20independently selected from C
1～C
5alkyl, wherein one or more-CH
2-group can be substituted by-O-; Be selected from-CF of Z
2o-or C-C singly-bound.
Most preferably, in liquid-crystal composition of the present invention, the compound of logical formula I representative is specially one or more in the represented compound in formula (I-1)～(I-40):
（Ⅰ-1）
（Ⅰ-2）
（Ⅰ-3）
（Ⅰ-4）
（Ⅰ-5）
（Ⅰ-6）
（Ⅰ-7）
（Ⅰ-8）
（Ⅰ-9）
（Ⅰ-10）
（Ⅰ-11）
（Ⅰ-12）
（Ⅰ-13）
（Ⅰ-14）
（Ⅰ-15）
（Ⅰ-16）
（Ⅰ-17）
（Ⅰ-18）
（Ⅰ-19）
（Ⅰ-20）
（Ⅰ-21）
（Ⅰ-22）
（Ⅰ-23）
（Ⅰ-24）
（Ⅰ-25）
（Ⅰ-26）
（Ⅰ-27）
（Ⅰ-28）
（Ⅰ-29）
（Ⅰ-30）
（Ⅰ-31）
（Ⅰ-32）
（Ⅰ-33）
（Ⅰ-34）
（Ⅰ-35）
（Ⅰ-36）
（Ⅰ-37）
（Ⅰ-38）
（Ⅰ-39）
（Ⅰ-40）
In liquid-crystal composition of the present invention, the compound of logical formula I representative is chief component, this compounds has very strong polarity, large electrical anisotropy, and there is higher clearing point, in mixed liquid crystal system, there is the effect of good reduction threshold voltage, meanwhile, in the time dissolving each other with other compounds, also showed excellent performance.
Preferably, in liquid-crystal composition of the present invention, the logical represented compound of formula II be specially formula (II a) or (II is the compound of representative b):
（Ⅱa）
（Ⅱb）
Formula (II a) and (II b) in, R
a 'for C
1～C
5alkyl.
The compound of logical formula II representative is the allotment requisite compounds of liquid-crystal composition of response fast, generally uses this compounds now in each display format liquid-crystal display liquid-crystal composition used, and addition is very large.This compounds does not almost have polarity, and the structure of bis cyclohexane makes it have extremely low viscosity and little optical anisotropy, reduces to play the effect can not be substituted for the viscosity of whole mixed system, thereupon remarkable for the raising effect of the response speed of mixed crystal.
Preferably, in liquid-crystal composition of the present invention, the structure of the compound of logical formula III and (IV) representative is respectively:
（Ⅲa）
（Ⅲb）
（Ⅲc）
（Ⅲd）
（Ⅳa）
（Ⅳb）
Formula (III a)～(III d), (IV a) and (IV b) in, R
c 'and R
d 'independently selected from C
1～C
5alkyl, wherein one or more-CH
2-group can be substituted by-O-.
In liquid-crystal composition of the present invention, the compound weight content of logical formula III and (IV) representative is 0～70%, and preferred content is 1～65%, and optimum content is 10～65%.The compound weight content of its formula of (III) representative is 0～30%, and preferred content is 2～25%, and optimum content is 5～25%; The compound weight content of logical formula IV representative is 0～40%, and preferred content is 5～40%.
In liquid-crystal composition of the present invention, the compound of logical formula III and (IV) representative has higher specific inductivity, moderate optical anisotropy, higher nematic temperature range, excellent combination property, in mixed liquid crystal, add this type of component can effectively reduce threshold voltage, the properties of stabilising system.
Preferably, in liquid-crystal composition of the present invention, R in the compound of described general formula (V) representative
eand R
findependently selected from C
1～C
5alkyl or C
2～C
5thiazolinyl; R in the compound of described logical formula VI representative
hbe selected from C
1～C
5alkyl, C
1～C
5alkoxyl group or C
1～C
5fluoroalkyl, R
gbe selected from C
2～C
5alkyl or C
2～C
5thiazolinyl; R in the compound of described general formula (VII) representative
iand R
jbe selected from C
1～C
5alkyl.
The compound of general formula (V), (VI) and (VII) representative plays the effect of auxiliary adjustment for the performance of improving liquid crystal mixed system, particularly most important for the fine setting of parameter: it has higher clearing point and larger optical anisotropy, can be used for clearing point and the Δ n(optical anisotropy of the system of adjusting) numerical value.
For liquid-crystal composition of the present invention, if show for IPS, FFS or ADS mode liquid crystal, opticity component concentration is 0%.
For liquid-crystal composition of the present invention, if show for TN-TFT mode liquid crystal, the effect that adds opticity component is to make liquid-crystal composition 90 ° of distortions in liquid crystal cell, unlikelyly owes to turn round and affects display effect, its content is 0.05～0.5%, is preferably 0.07～0.3%.
In addition, in order to improve liquid-crystal composition for heat and the particularly stability of UV-light of light, also UV light absorber can according to circumstances be added, for example: benzotriazole category, benzophenone, triazines, benzoates; Hindered amine light stabilizer; Hindered phenol anti-oxidants.
Liquid-crystal composition of the present invention can adopt ordinary method preparation, for example two or more liquid crystalline cpds at high temperature mixed and dissolve each other, be dissolved in solvent the mixing for this compound by liquid crystalline cpd, then under reduced pressure distill out this solvent; Or the component that wherein content is less is dissolved in the main ingredient that content is larger at higher temperature, or component under each is dissolved in organic solvent, after then solution being mixed, after removal solvent, obtain.Wherein, solvent for use can be the conventional organic solvents such as acetone, chloroform or methyl alcohol.
(3) beneficial effect
The liquid-crystal composition excellent performance obtaining by the present invention, there is lower voltage, lower viscosity, high resistivity and voltage retention, liquid-crystal composition of the present invention can be used for liquid crystal indicator, be particularly useful for the TFT indicating meter of various quick responses, as TN type, IPS type, FFS type or ADS type TFT liquid-crystal display.Liquid-crystal composition of the present invention has solved the problem that TFT liquid-crystal display response speed is fast not, voltage is low not, electric charge conservation rate is not high enough existing in prior art.
Embodiment
Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
Opticity component of the present invention, S811, R811, S1011, R1011, S2011 and R2011 all derive from Beijing Bayi Space LCD Materials Technology Co., Ltd., and its structure is:
R/S811
R/S1011
R/S2011
Liquid-crystal composition of the present invention adopts the preparation of ubiquitous method in this area--thermal solution retorting process.First weigh by weight percentage each liquid crystalline cpd with balance, wherein weigh addition sequence without particular requirement, conventionally weigh successively mixing with liquid crystalline cpd fusing point order from high to low, at 60～100 DEG C, heated and stirred melts evenly each component, again after filtration, degassed, finally encapsulate and obtain target sample.In addition, also can carry out the preparation of even liquid crystal by the disclosed method of patent CN101502767A.
Except as otherwise noted, in context, per-cent is weight percentage, and all temperature are degree Celsius to provide.In embodiment, use following abbreviation:
△ n is optical anisotropy, and η is volume viscosity (mm
2/ s, 20 DEG C), Δ ε is dielectric constant anisotropy (20 DEG C, 1000Hz);
V
90for threshold voltage, it is the character voltage (V, 20 DEG C) in the time of relative 90% transmitance;
C.p be liquid-crystal composition clearing point (DEG C);
τ
ontime during for making alive during from 90% transmitance to 10% transmitance, τ
offtime while returning to 90% transmitance from 10% transmitance during for cut-out voltage, τ is τ
on+ τ
off(time of response) (ms);
Except as otherwise noted, all optical datas are all measured at 20 DEG C.
In the following embodiments, each structural unit abbreviation is as shown in table 1.
The abbreviation of table 1 structural unit
For example: nC-P-PF.X.F represents C
nh
2n+1 oCF
2-CF=CF
2
Embodiment 1
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 2:
The proportioning of the liquid-crystal composition of table 2 embodiment 1 and performance perameter
Embodiment 2
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 3:
The proportioning of the liquid-crystal composition of table 3 embodiment 2 and performance perameter
Embodiment 3
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 4:
The proportioning of the liquid-crystal composition of table 4 embodiment 3 and performance perameter
Embodiment 4
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 5:
The proportioning of the liquid-crystal composition of table 5 embodiment 4 and performance perameter
Embodiment 5
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 6:
The proportioning of the liquid-crystal composition of table 6 embodiment 5 and performance perameter
Embodiment 6
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 7:
The proportioning of the liquid-crystal composition of table 7 embodiment 6 and performance perameter
Embodiment 7
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 8:
The proportioning of the liquid-crystal composition of table 8 embodiment 7 and performance perameter
Embodiment 8
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 9:
The proportioning of the liquid-crystal composition of table 9 embodiment 8 and performance perameter
Embodiment 9
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 10:
The proportioning of the liquid-crystal composition of table 10 embodiment 9 and performance perameter
Embodiment 10
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 11:
The proportioning of the liquid-crystal composition of table 11 embodiment 10 and performance perameter
Embodiment 11
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 12:
The proportioning of the liquid-crystal composition of table 12 embodiment 11 and performance perameter
Embodiment 12
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 13:
The proportioning of the liquid-crystal composition of table 13 embodiment 12 and performance perameter
Embodiment 13
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, the performance perameter of concrete proportioning and gained liquid-crystal composition is as shown in table 14:
The proportioning of the liquid-crystal composition of table 14 embodiment 13 and performance perameter
Comparative example
Get the liquid crystalline cpd of following weight percentage and prepare liquid-crystal composition with method described in the present invention, in concrete proportioning and embodiment 1, the relativity of proportioning is as shown in Table 15:
The composition proportioning of table 15 comparative example and embodiment 1
According to proportioning described in table 15, the performance perameter that makes prepared liquid-crystal composition in the performance perameter of liquid-crystal composition and embodiment 1 with method described in the present invention forms contrast, as shown in table 16:
The performance perameter of table 16 comparative example and embodiment 1
| Performance perameter | Embodiment 1 | Comparative example |
| V 90[V，20℃] | 1.36 | 1.58 |
| η[mm 2/s，20℃] | 14 | 18 |
| C.p[℃] | 105 | 103 |
| Δn[20℃，589nm] | 0.102 | 0.102 |
| τ[ms] | 6.0 | 9.0 |
| Δε[20℃] | 7.5 | 6.2 |
From table 15 and table 16, compared with embodiment 1, because not using the represented compound of logical formula I as one of component in comparative example, in the situation that other components are substantially the same, in comparative example, prepared liquid-crystal composition is compared with liquid-crystal composition prepared in embodiment 1, driving voltage is high, and the time of response is slow.Illustrate that the compound of logical formula I representative has the effect of good reduction threshold voltage and raising response speed in mixed liquid crystal system.
Although, above use general explanation, embodiment and test, the present invention is described in detail, on basis of the present invention, can make some modifications or improvements it, and this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.
Claims (1)
1. a liquid-crystal composition, is characterized in that, is made up of the component of following weight percentage: wherein, and A formula:
Or B formula:
Or C formula:
Or D formula:
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| CN103642503B (en) * | 2013-12-03 | 2015-09-23 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid-crystal composition and application thereof containing pyranyl and five fluorine allyloxy structural compounds |
| JP6304529B2 (en) * | 2013-12-06 | 2018-04-04 | Dic株式会社 | Polymerizable compound and optical anisotropic body |
| US9822301B2 (en) | 2013-12-16 | 2017-11-21 | Dic Corporation | Alkenyl ether compound and a liquid crystal composition using the same |
| CN103773390B (en) * | 2013-12-27 | 2015-07-15 | 北京八亿时空液晶科技股份有限公司 | Liquid-crystal composition containing pentafluoropropenyl ether type monomers and application thereof |
| CN103756688B (en) * | 2014-01-27 | 2015-05-27 | 北京八亿时空液晶科技股份有限公司 | Pentafluoropropylene ether liquid crystal compound as well as preparation method and application thereof |
| CN103772335B (en) * | 2014-01-27 | 2016-02-10 | 北京八亿时空液晶科技股份有限公司 | A kind of liquid crystalline cpd and liquid-crystal composition thereof containing five fluorine propylene and pyranoid ring |
| CN104354646B (en) * | 2014-11-07 | 2016-08-24 | 高辉（天津）科技有限公司 | Full-sized car liquid crystal glareproof mirror |
| CN104673326B (en) * | 2015-02-04 | 2017-01-11 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition containing fluoroterphenyl compound and pentafluoropropenyl ester compound and application thereof |
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| CN110452710B (en) * | 2018-05-08 | 2021-04-09 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition and application thereof |
| CN108531197A (en) * | 2018-05-31 | 2018-09-14 | 烟台显华化工科技有限公司 | A kind of liquid-crystal composition and its application |
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| JP3702860B2 (en) * | 2001-04-16 | 2005-10-05 | セイコーエプソン株式会社 | Electro-optical device, manufacturing method thereof, and electronic apparatus |
| WO2004058676A1 (en) * | 2002-12-24 | 2004-07-15 | Asahi Denka Co., Ltd. | Perfluoroallyloxy compound and liquid-crystal composition containing the compound |
| CN101061202B (en) * | 2004-12-10 | 2014-01-08 | 株式会社艾迪科 | Liquid crystal composition |
| JP4942381B2 (en) * | 2006-04-04 | 2012-05-30 | 株式会社Ａｄｅｋａ | Halogen-containing compound, liquid crystal composition, and electro-optical display element |
| CN101747904A (en) * | 2008-12-16 | 2010-06-23 | 大立高分子工业股份有限公司 | Liquid crystal composition |
| CN102643653B (en) * | 2012-03-21 | 2013-07-31 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition |
| CN103013535B (en) * | 2012-12-28 | 2014-02-26 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition and application thereof |
| CN103146392B (en) * | 2013-02-27 | 2014-05-21 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition for liquid crystal display |
| CN103194243B (en) * | 2013-02-27 | 2015-01-07 | 北京八亿时空液晶科技股份有限公司 | Liquid crystal composition for TFT display |
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