CN106147788A - Liquid-crystal composition and liquid crystal display device thereof - Google Patents
Liquid-crystal composition and liquid crystal display device thereof Download PDFInfo
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- CN106147788A CN106147788A CN201510197796.9A CN201510197796A CN106147788A CN 106147788 A CN106147788 A CN 106147788A CN 201510197796 A CN201510197796 A CN 201510197796A CN 106147788 A CN106147788 A CN 106147788A
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Abstract
The present invention provides a kind of liquid-crystal composition and liquid crystal display device thereof.Described liquid-crystal composition comprises: account for the compound of at least one formula I of described liquid-crystal composition gross weight 1-45%；Account for the compound of at least one formula II of described liquid-crystal composition gross weight 1-45%；And account for the compound of at least one general formula III of described liquid-crystal composition gross weight 10-70%.The liquid-crystal composition of the present invention can realize the characteristics such as relatively low optical anisotropy, higher dielectric anisotropy, relatively low viscosity, higher clearing point, good low temperature storage stability, preferable uv-resistant stability and preferable high-temperature stability.Liquid-crystal composition of the present invention, be applicable to liquid crystal display device, makes this liquid crystal display device reliability high, can normally work in rugged environment.
Description
Technical field
The present invention relates to a kind of liquid-crystal composition and liquid crystal display device thereof, there is relatively low optics respectively to different particularly to a kind of
Property, higher dielectric anisotropy, relatively low viscosity, higher clearing point, good low temperature storage stability, preferably
The liquid-crystal composition of uv-resistant stability and preferably high-temperature stability, and comprise the liquid crystal display of this liquid-crystal composition
Part.
Background technology
Liquid crystal display cells can be divided into TN (twistednemtic twisted-nematic), STN according to the difference of display pattern
(superistednemtic super twisted nematic), IPS (internal conversion of in-planswitching face), VA (verticaligbnent
Vertical orientation), the type such as OCB (opticallycompensatedbend is optical compensation curved).Along with TFT
(thinfilmtransistor thin film transistor (TFT)) array drives developing rapidly, in recent years of liquid crystal display (TFT-LCD) technology
Carry out people and there is in actively research the TFT display of the quickly characteristic such as response and high-contrast always.
The very long phase of basic research of the development experience of TFT-LCD, after realize large-scale production, commercialization,
The advantages such as TFT-LCD product is frivolous with it, environmental protection, high-performance, size is more and more diversified, applies more and more extensive.
The most undersized Mobile phone screen, or large-sized notebook computer (NotebookPC) or monitor (Monitor),
The LCD TV (LCDTV) even maximized, is found everywhere the application of TFT-LCD.Along with commercialization in early days
The increase of TFT-LCD product size, particularly TFT-LCD, in the application in TV field, have in the face of wide viewing angle feature
Switching (In-Plane Swiching, IPS) display pattern is developed and is used.IPS display pattern is the earliest by the U.S.
People R.Soref (Suo Lifu) delivered in paper in 1974, and was proposed IPS to make by German G.Baur (Bauer)
It is applied in TFT-LCD for wide viewing angle technology.Nineteen ninety-five, the Hitachi, Ltd of Japan have developed first 13.3 cun in the world
The wide viewing angle TFT-LCD product of IPS pattern.The Modern Corporation of Korea S develops fringe field switching on the basis of IPS
(FringeFieldSwitching, FFS) shows pattern.
TFT-LCD is the liquid crystal indicator under TFT switch controls, the electrical and optical spy of its liquid crystal material used
Property directly influences the display effect of TFT-LCD.And different types of liquid crystal material, due to its electrical and optical properties
Difference, the display pattern being suitable for also is not quite similar.Liquid crystal material used by TFT-LCD must is fulfilled for following characteristic requirements:
1) high stability: include ultraviolet light stability, heat stability and chemical stability, in TFT-LCD, liquid crystal material
Material contacts with the macromolecular material such as alignment film, Seal, Spacer.And in the manufacture process of TFT-LCD, it is desirable to liquid crystal
Material at high temperature remains in that high voltage retention, to reduce the variation of ambient temperature impact on liquid crystal material performance.This
Outward, when injecting row Seal hardening with ultraviolet lighting, if without UV-MASX, the height of liquid crystal material ultraviolet light to be withstood
Energy damages effect, it is to avoid the deterioration of liquid crystal material character.
2) optical anisotropy of appropriateness: different liquid crystal display mode is to differ to the requirement of optical anisotropy Δ n value
Sample, Δ n diminishes and can obtain broader visual angle.
3) low viscosity: this is the requirement of high response speed.Viscosity is the lowest, and response time is the least, and response speed is the fastest.
4) bigger dielectric anisotropy: Δ ε is the biggest for dielectric anisotropy, and the threshold voltage of liquid crystal is the least, but liquid crystal material
In ion the most easily separate out and become free ion, cause resistivity to reduce.
5) wide temperature range: preferably storage temperature range is-10 DEG C～90 DEG C, typically has the most vehicle-mounted of special applications
Display, this temperature may widen-40 DEG C～100 DEG C.
A kind of liquid crystal molecule can not meet this requirement, it is necessary to carries out the mixing of plurality of liquid crystals molecule.Divided by mixed liquid crystal
Son realizes the various physical characteristic requirements of liquid crystal material.Therefore, in liquid crystal material field, need that there is the liquid crystal improving performance
Compositions.Especially, for many application types, liquid-crystal composition must have the lowest optical anisotropy,
The characteristics such as higher dielectric anisotropy, relatively low viscosity, low temperature storage stability.
Summary of the invention
It is an object of the invention to provide a kind of liquid-crystal composition, it possess relatively low optical anisotropy, higher dielectric respectively to
Different in nature, higher clearing point, relatively low viscosity, good low temperature storage stability, preferable uv-resistant stability and relatively
The characteristics such as good high-temperature stability.Described liquid-crystal composition, be applicable to liquid crystal display, enables this liquid crystal display device to exist
Rugged environment well shows, normally works.
One aspect of the present invention provides a kind of liquid-crystal composition, comprises:
Account for the compound of at least one formula I of described liquid-crystal composition gross weight 1-45%
Account for the compound of at least one formula II of described liquid-crystal composition gross weight 1-45%
And
Account for the compound of at least one general formula III of described liquid-crystal composition gross weight 10-70%
Wherein,
R1、R2、R3And R4Identical or different, represent H, fluoro independently of one another or be not 1-7 by the carbon number of fluoro
Alkyl or alkoxyl, or fluoro or not by thiazolinyl that the carbon number of fluoro is 2-7 or alkenyloxy group；
Identical or different, be each independently selected from by The group of composition；
X1Represent F, Cl ,-CN ,-CF3Or-OCF3；
Z represents singly-bound ,-CH=CH-,-CH2O-、-OCH2-、-CH2CH2-、-CF2O-,-CF=CF-or-COO-；
M, n and p are identical or different, represent 0 or 1 independently of one another.
In some embodiments, during described liquid-crystal composition also comprises the compound meeting general formulae IV-1～general formulae IV-8
Kind or more kinds of compounds:
And
Wherein,
R5、R6、R7、R8、R9、R10、R11、R12、R13And R14Identical or different, represent that carbon is former independently of one another
Subnumber is alkyl or the alkoxyl of 1-5, or fluoro or not by thiazolinyl that the carbon number of fluoro is 2-7 or alkenyloxy group；
L1Represent H or F；
X2Represent F, Cl ,-CN ,-CF3Or-OCF3。
In embodiments of the invention, the compound of the most described formula I accounts for described liquid-crystal composition gross weight
1-30%；The compound of described formula II accounts for the 1-30% of described liquid-crystal composition gross weight；The compound of described general formula III accounts for
The 10-60% of described liquid-crystal composition gross weight；And the compound of described general formulae IV-1～general formulae IV-8 accounts for described liquid crystal combination
The 30-80% of thing gross weight.
More preferably, the compound of described formula I accounts for the 2-28% of described liquid-crystal composition gross weight；The chemical combination of described formula II
Thing accounts for the 3-15% of described liquid-crystal composition gross weight；The compound of described general formula III accounts for described liquid-crystal composition gross weight
10-50%；And the compound of described general formulae IV-1～general formulae IV-8 accounts for the 30-71% of described liquid-crystal composition gross weight.
In some embodiments of the present invention, in the group of the compound choosing following compound composition of the most described formula I
One or more of compounds:
And
As particularly preferred scheme, one or more of in the group of the compound choosing following compound composition of described formula I
Compound:
And
As particularly preferred scheme, one or more of in the group of the compound choosing following compound composition of described formula I
Compound:
And
In embodiments of the invention, a kind of in the group of the compound choosing following compound composition of the most described formula II
Or more compounds:
And
As particularly preferred scheme, one or more of in the group of the compound choosing following compound composition of described formula II
Compound:
And
In embodiments of the invention, a kind of in the group of the compound choosing following compound composition of the most described general formula III
Or more compounds:
And
As particularly preferred scheme, one or more of in the group of the compound choosing following compound composition of described general formula III
Compound:
And
In embodiments of the invention, in the group of the compound choosing of the most described general formulae IV-1 freely following compound composition one
Plant or more compounds:
And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-2:
And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-3:And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-4:And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-5:
And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-6:And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-7:And
Preferably, one or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-8:
And
As particularly preferred scheme, in the group of the compound choosing following compound composition of described general formulae IV-1～general formulae IV-8
One or more of compounds::
And
Another aspect of the present invention provides a kind of liquid crystal display, and described liquid crystal display comprises the liquid crystal combination of the present invention
Thing.
The present invention by above-claimed cpd is combined experiment, by with the comparison compareed, it is determined that include above-mentioned liquid crystal group
The liquid crystal media of compound, has relatively low optical anisotropy, higher dielectric anisotropy, relatively low viscosity, higher
The characteristic that clearing point, low-temperature stability are good, high and high to the stability of heat to UV stability.
The most if no special instructions, described ratio is weight ratio, and all temperature are degree celsius temperature, described
Response time data test select box thickness be 4 μm.
Detailed description of the invention
Below with reference to specific embodiments, the present invention is described.It should be noted that the following examples are showing of the present invention
Example, is only used for the present invention is described, and is not limited to the present invention.In the case of without departing from present subject matter or scope, can
Carry out other combination and the various improvement in present inventive concept.
For ease of expressing, in following embodiment, the code listed by unit structure table 1 of liquid-crystal composition represents:
The unit structure code of table 1 liquid-crystal compounds
As a example by the compound of following structural formula:
This structural formula is as represented by code listed in Table 1, then can be expressed as: nCCGF, the n in code represents left end alkyl
C atomic number, such as n are " 3 ", i.e. represent that this alkyl is-C3H7；C in code represents cyclohexyl.
As a example by following structure:
Then it is represented by 2IPUQUF, 2 expression-C in code2H5；I in code represents indane-2,5-diyl；Code
In P represent 1,4-phenylene；U in code represents 2, and 5 two fluoro-Isosorbide-5-Nitrae-phenylenes, in code, Q represents difluoro-methoxy；
In code, F represents fluoro substituents.
In following example test event to write a Chinese character in simplified form code name as follows:
Wherein, optical anisotropy use abbe's refractometer under sodium lamp (589nm) light source, 25 DEG C test.
Δ ε=ε | |-ε ⊥, wherein, and ε | | for being parallel to the dielectric constant of molecular axis, ε ⊥ is the dielectric constant being perpendicular to molecular axis, surveys
Strip part: 25 DEG C, 1KHz, testing cassete be TN90 type, thick 7 μm of box.
VHR (initially) is to use TOY06254 type liquid crystal evaluation of physical property system test to obtain；Test temperature is 60 DEG C, test electricity
Pressure is 5V, and the testing time is 166.7ms.VHR (150 DEG C) is that after 150 DEG C of deterioration 1h, liquid crystal is used TOY06254
Type liquid crystal evaluation of physical property system test obtains；Test temperature is 60 DEG C, and test voltage is 5V, and the testing time is 166.7ms.
VHR (UV) is to use TOY06254 type liquid crystal evaluation of physical property system test to obtain；Test temperature is 60 DEG C, and test voltage is
5V, the testing time is 166.7ms, and the ultraviolet lighting time is 20min.
The each composition used below in an example all can be synthesized by known method, or by business way
Footpath obtains.These synthetic technologys are conventional, and obtained each liquid-crystal compounds meets electrical type compound standard after tested.
According to the proportioning of each liquid-crystal composition of following example regulation, prepare liquid-crystal composition.The system of described liquid-crystal composition
Standby is to carry out according to the conventional method of this area, as taked the mode ratio according to the rules mixing such as heating, ultrasound wave, suspension
Prepare.
Prepare and study the liquid-crystal composition provided in the following example.Composition and its property of each liquid-crystal composition are shown below
Can parameter testing result.
It is the composition of reference examples liquid-crystal composition, proportioning listed by table 2 and is filled between liquid crystal display two substrates and carries out performance
The test result of test, in order to carry out performance comparison with explanation liquid-crystal composition of the present invention.
Reference examples 1
Be configured to the liquid-crystal composition of reference examples 1 by each compound listed in table 2 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 2 liquid crystal combination composition formula and test performance thereof
Embodiment 1
Be configured to the liquid-crystal composition of embodiment 1 by each compound listed in table 3 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 3 liquid crystal combination composition formula and test performance thereof
Embodiment 2
Be configured to the liquid-crystal composition of embodiment 2 by each compound listed in table 4 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 4 liquid crystal combination composition formula and test performance thereof
Embodiment 3
Be configured to the liquid-crystal composition of embodiment 3 by each compound listed in table 5 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 5 liquid crystal combination composition formula and test performance thereof
Embodiment 4
Be configured to the liquid-crystal composition of embodiment 4 by each compound listed in table 6 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 6 liquid crystal combination composition formula and test performance thereof
Embodiment 5
Be configured to the liquid-crystal composition of embodiment 5 by each compound listed in table 7 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 7 liquid crystal combination composition formula and test performance thereof
Embodiment 6
Be configured to the liquid-crystal composition of embodiment 6 by each compound listed in table 8 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 8 liquid crystal combination composition formula and test performance thereof
Embodiment 7
Be configured to the liquid-crystal composition of embodiment 7 by each compound listed in table 9 and percetage by weight, it is filled in liquid crystal
Carrying out performance test between display two substrates, test data are as shown in the table:
Table 9 liquid crystal combination composition formula and test performance thereof
Embodiment 8
Be configured to the liquid-crystal composition of embodiment 8 by each compound listed in table 10 and percetage by weight, it is filled in liquid
Carrying out performance test between crystal display two substrates, test data are as shown in the table:
Table 10 liquid crystal combination composition formula and test performance thereof
Embodiment 9
Be configured to the liquid-crystal composition of embodiment 9 by each compound listed in table 11 and percetage by weight, it is filled in liquid
Carrying out performance test between crystal display two substrates, test data are as shown in the table:
Table 11 liquid crystal combination composition formula and test performance thereof
With reference to reference examples 1, from the test data of above example 1,2,3,4,5,6,7,8 and 9, this
Bright provided liquid-crystal composition has relatively low optical anisotropy, higher dielectric anisotropy, higher clearing point,
Make to use the liquid crystal display of liquid-crystal composition of the present invention to have wider visual angle, and the liquid-crystal composition of the present invention has
The least kinematic viscosity, good low temperature storage stability, preferable uv-resistant stability and preferable high-temperature stability,
Thus there is fast response speed, it is applicable to the display device with rapid response to customer's need, such as monitor, TV etc., makes
It is high that liquid crystal display device has reliability, the characteristic that can normally work in rugged environment.
Claims (10)
1. a liquid-crystal composition, comprises:
Account for the compound of at least one formula I of described liquid-crystal composition gross weight 1-45%
Account for the compound of at least one formula II of described liquid-crystal composition gross weight 1-45%
Account for the compound of at least one general formula III of described liquid-crystal composition gross weight 10-70%
Wherein,
R1、R2、R3And R4Identical or different, represent H, fluoro independently of one another or be not 1-7 by the carbon number of fluoro
Alkyl or alkoxyl, or fluoro or not by thiazolinyl that the carbon number of fluoro is 2-7 or alkenyloxy group；
WithIdentical or different, be each independently selected from by WithThe group of composition；
X1Represent F, Cl ,-CN ,-CF3Or-OCF3；
Z represents singly-bound ,-CH=CH-, CH2O-、-OCH2-、-CH2CH2-、-CF2O-,-CF=CF-or-COO-；
M, n and p are identical or different, represent 0 or 1 independently of one another.
Liquid-crystal composition the most according to claim 1, it is characterised in that described liquid-crystal composition also comprises and meets formula
IV-1～general formulae IV-8 compound in one or more of compounds:
Wherein,
R5、R6、R7、R8、R9、R10、R11、R12、R13And R14Identical or different, represent that carbon is former independently of one another
Subnumber is alkyl or the alkoxyl of 1-5, or fluoro or not by thiazolinyl that the carbon number of fluoro is 2-7 or alkenyloxy group；
L1Represent H or F；
X2Represent F, Cl ,-CN ,-CF3Or-OCF3。
Liquid-crystal composition the most according to claim 2, it is characterised in that the compound of described formula I accounts for described liquid crystal
The 1-30% of composition total weight；The compound of described formula II accounts for the 1-30% of described liquid-crystal composition gross weight；Described logical
The compound of formula III accounts for the 10-60% of described liquid-crystal composition gross weight；And described general formulae IV-1～the compound of general formulae IV-8
Account for the 30-80% of described liquid-crystal composition gross weight.
Liquid-crystal composition the most according to claim 3, it is characterised in that the compound of described formula I accounts for described liquid crystal
The 2-28% of composition total weight；The compound of described formula II accounts for the 3-15% of described liquid-crystal composition gross weight；Described logical
The compound of formula III accounts for the 10-50% of described liquid-crystal composition gross weight；And described general formulae IV-1～the compound of general formulae IV-8
Account for the 30-71% of described liquid-crystal composition gross weight.
Liquid-crystal composition the most according to claim 1, it is characterised in that the compound choosing of described formula I is as follows
One or more of compounds in the group of compound composition:
Liquid-crystal composition the most according to claim 1, it is characterised in that the compound choosing of described formula II is as follows
One or more of compounds in the group of compound composition:
Liquid-crystal composition the most according to claim 1, it is characterised in that the compound choosing of described general formula III is as follows
One or more of compounds in the group of compound composition:
Liquid-crystal composition the most according to claim 2, it is characterised in that the compound choosing of described general formulae IV-1 is the most such as
One or more of compounds in the group of lower compound composition:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-2:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-3:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-4:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-5:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-6:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-7:
One or more of compounds in the group of the compound choosing following compound composition of described general formulae IV-8:
9. according to the liquid-crystal composition according to any one of claim 2-8, it is characterised in that described liquid-crystal composition comprises:
Account for the compound ii-1 of described liquid-crystal composition gross weight 4%；
Account for the compound III-1 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-3-5 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-4 of described liquid-crystal composition gross weight 7%；
Account for the compounds Ⅳ-3-7 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-2-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-2-2 of described liquid-crystal composition gross weight 11%；
Account for the compounds I-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 7%；
Account for the compounds Ⅳ-5-4 of described liquid-crystal composition gross weight 2%；
Account for the compounds Ⅳ-5-3 of described liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ-5-2 of described liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ-6-1 of described liquid-crystal composition gross weight 7%；
Account for the compounds Ⅳ-6-2 of described liquid-crystal composition gross weight 7%；And
Account for the compounds Ⅳ-6-3 of described liquid-crystal composition gross weight 7%；
Or, described liquid-crystal composition comprises:
Account for the compound ii-1 of described liquid-crystal composition gross weight 6%；
Account for the compound III-1 of described liquid-crystal composition gross weight 14%；
Account for the compounds Ⅳ-3-5 of described liquid-crystal composition gross weight 7%；
Account for the compounds Ⅳ-3-7 of described liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ-3-2 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-3 of described liquid-crystal composition gross weight 10%；
Account for the compounds I-1 of described liquid-crystal composition gross weight 7%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 7%；
Account for the compounds Ⅳ-5-4 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-5-3 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-5-2 of described liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ-6-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-6-2 of described liquid-crystal composition gross weight 8%；And
Account for the compounds Ⅳ-6-3 of described liquid-crystal composition gross weight 8%；
Or, described liquid-crystal composition comprises:
Account for the compound ii-1 of described liquid-crystal composition gross weight 12%；
Account for the compound III-1 of described liquid-crystal composition gross weight 14%；
Account for the compounds Ⅳ-3-5 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-3-7 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-3-2 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-3 of described liquid-crystal composition gross weight 10%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 11%；
Account for the compounds Ⅳ-5-4 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-5-3 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-5-2 of described liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ-6-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-6-2 of described liquid-crystal composition gross weight 8%；And
Account for the compounds Ⅳ-6-3 of described liquid-crystal composition gross weight 8%；
Or, described liquid-crystal composition comprises:
Account for the compound ii-5 of described liquid-crystal composition gross weight 6%；
Account for the compound III-1 of described liquid-crystal composition gross weight 14%；
Account for the compounds Ⅳ-3-5 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-7 of described liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ-2-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-2-2 of described liquid-crystal composition gross weight 10%；
Account for the compounds I-1 of described liquid-crystal composition gross weight 10%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-6-1 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-6-2 of described liquid-crystal composition gross weight 10%；And
Account for the compounds Ⅳ-6-3 of described liquid-crystal composition gross weight 8%；
Or, described liquid-crystal composition comprises:
Account for the compound ii-1 of described liquid-crystal composition gross weight 6%；
Account for the compound III-1 of described liquid-crystal composition gross weight 14%；
Account for the compounds Ⅳ-7-3 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-4 of described liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ-3-5 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-3-7 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-4-2 of described liquid-crystal composition gross weight 10%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-8-1 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-8-2 of described liquid-crystal composition gross weight 10%；And
Account for the compounds Ⅳ-8-3 of described liquid-crystal composition gross weight 8%；
Or, described liquid-crystal composition comprises:
Account for the compounds Ⅳ-4-2 of described liquid-crystal composition gross weight 10%；
Account for the compound ii-5 of described liquid-crystal composition gross weight 5.5%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 3%；
Account for the compounds Ⅳ-7-3 of described liquid-crystal composition gross weight 2%；
Account for the compound III-1 of described liquid-crystal composition gross weight 47%；
Account for the compounds Ⅳ-1-2 of described liquid-crystal composition gross weight 2.5%；
Account for the compounds Ⅳ-1-3 of described liquid-crystal composition gross weight 2%；
Account for the compounds Ⅳ-8-1 of described liquid-crystal composition gross weight 10%；
Account for the compounds Ⅳ-8-2 of described liquid-crystal composition gross weight 9%；And
Account for the compounds Ⅳ-8-3 of described liquid-crystal composition gross weight 9%；
Or, described liquid-crystal composition comprises:
Account for the compound ii-5 of described liquid-crystal composition gross weight 5%；
Account for the compound ii-1 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-7-3 of described liquid-crystal composition gross weight 2%；
Account for the compounds Ⅳ-3-2 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-3-3 of described liquid-crystal composition gross weight 5%；
Account for the compounds I-1 of described liquid-crystal composition gross weight 5%；
Account for the compounds I-2 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-2-1 of described liquid-crystal composition gross weight 8%；
Account for the compounds Ⅳ-2-2 of described liquid-crystal composition gross weight 13%；
Account for the compound III-1 of described liquid-crystal composition gross weight 29%；
Account for the compound III-4 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-8-5 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-8-6 of described liquid-crystal composition gross weight 5%；And
Account for the compounds Ⅳ-8-7 of described liquid-crystal composition gross weight 5%；
Or, described liquid-crystal composition comprises:
Account for the compounds I-14 of described liquid-crystal composition gross weight 5%；
Account for the compounds I-15 of described liquid-crystal composition gross weight 5%；
Account for the compounds I-12 of described liquid-crystal composition gross weight 6%；
Account for the compounds I-8 of described liquid-crystal composition gross weight 12%；
Account for the compounds Ⅳ-7-3 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-2-1 of described liquid-crystal composition gross weight 13%；
Account for the compounds Ⅳ-2-2 of described liquid-crystal composition gross weight 12%；
Account for the compound III-1 of described liquid-crystal composition gross weight 30%；
Account for the compound III-4 of described liquid-crystal composition gross weight 5%；And
Account for the compound ii-5 of described liquid-crystal composition gross weight 7%；
Or, described liquid-crystal composition comprises:
Account for the compounds I-13 of described liquid-crystal composition gross weight 5%；
Account for the compounds I-12 of described liquid-crystal composition gross weight 4%；
Account for the compounds I-10 of described liquid-crystal composition gross weight 4%；
Account for the compounds I-16 of described liquid-crystal composition gross weight 4%；
Account for the compounds Ⅳ-6-1 of described liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ-6-2 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-6-3 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-1-2 of described liquid-crystal composition gross weight 6%；
Account for the compound III-1 of described liquid-crystal composition gross weight 36%；
Account for the compounds Ⅳ-3-2 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-3-3 of described liquid-crystal composition gross weight 6%；
Account for the compounds Ⅳ-2-1 of described liquid-crystal composition gross weight 5%；
Account for the compounds Ⅳ-2-2 of described liquid-crystal composition gross weight 6%；And
Account for the compound ii-1 of described liquid-crystal composition gross weight 3%.
10. a liquid crystal display, comprises the liquid-crystal composition described in any one in claim 1-9.
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