CN107189791A

CN107189791A - A kind of positive and negative mixed liquid crystal composition and its application

Info

Publication number: CN107189791A
Application number: CN201610146600.8A
Authority: CN
Inventors: 陈卯先; 王杰; 储士红; 未欣; 陈海光; 姜天孟; 郭云鹏; 袁瑾; 伍嘉琦; 田会强
Original assignee: Beijing Bayi Space LCD Technology Co Ltd
Current assignee: Beijing Bayi Space LCD Technology Co Ltd
Priority date: 2016-03-15
Filing date: 2016-03-15
Publication date: 2017-09-22
Anticipated expiration: 2036-03-15
Also published as: CN107189791B

Abstract

The present invention relates to liquid crystal material field, and in particular to a kind of positive and negative mixed liquid crystal composition and its application, and the composition is including at least the compound representated by a kind of formula I and including at least a kind of compounds of formula II.Liquid-crystal composition of the present invention has low viscosity, high resistivity, good low temperature intersolubility, fast response speed and excellent light transmission rate, the fast-response liquid crystal display available for plurality of display modes.Current FFS and IPS has become the display pattern of most main flow, but the transmitance present in FFS and IPS it is low the problem of as key issue to be solved；It is found through experiments that, the liquid-crystal composition with big vertical dielectric has high transmitance, therefore can reach the problem of lifting brightness and do not increase power consumption.Liquid-crystal composition provided by the present invention has big vertical dielectric, can effectively lift the light transmission rate of liquid crystal display, particularly in the display of FFS and IPS display patterns.

Description

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

Technical field

The invention belongs to liquid crystal material technical field, and in particular to a kind of positive and negative mixed liquid crystal composition, and it is in liquid Application in crystal display.

Background technology

Display is the process for electric signal (data message) being changed into visible light (visual information), and the equipment for completing display is Man-machine interface (Man-Machine Interface, MMI).Flat-panel monitor (Flat panel Display, FPD) is current A most popular class display device.Liquid crystal display (Liquid Crystal Display, LCD) is opened earliest in FPD Issue, and the product being commercialized.At present, Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display, TFT-LCD) have become LCD application in main product.

Said from operation principle, this display devices of LCD are the light for sending backlight, by polaroid and liquid crystal cell (liquid Brilliant molecule) etc., the light and shade (so that color change) corresponding to the light for wanting display image is produced, people are achieved in cognizable Image is shown.That is, LCD brightness decision (is called the transmission of liquid crystal cell in the relative quantity of the light through liquid crystal cell Rate), through colored filter light relative quantity (CF transmissivity) and the factors such as brightness of backlight.

The introducing of different display modes causes the performance of liquid crystal display (LCDs) to be significantly improved, and by more It is widely used in smart mobile phone, display, portable flat panel computer, the different aspect such as TV.These applications are to liquid crystal display Propose higher display requirement, such as high-contrast, wide viewing angle, quick response and high-penetration rate.Wherein, in ultrahigh resolution Under cause aperture opening ratio to reduce due to the diminution of Pixel Dimensions, so the display of high-penetration rate is particularly important.

The dielectric property of liquid crystal is represented with permittivity ε.The electric field dielectric constant ε parallel with liquid crystal director_//Table Show, the electric field dielectric constant ε vertical with liquid crystal director_⊥Represent, dielectric anisotropy constant is Δ ε=ε_//-ε_⊥.If liquid crystal Molecular polarity group permanent dipole away from direction it is consistent with molecular long axis direction, the electronic migration degree in long axis of liquid crystal molecule direction is most Greatly, so, there is big dipole moment, dielectric anisotropy is just Δ ε ＞ 0, such liquid on the direction parallel with molecular long axis Crystalline substance is called positivity liquid crystal.If liquid crystal molecule polar group permanent dipole away from direction it is vertical with molecular long axis direction, liquid crystal molecule The electronic migration degree of short-axis direction is maximum, so, and with having small dipole moment on the direction of molecular long axis normal, dielectric is respectively to different Property is negative, and liquid crystal as Δ ε ＜ 0 is called negative liquid crystal.

At present in liquid crystal display market, competitive display pattern mainly has, in-plane switching (in-plane Switching, IPS), fringing field switching (fringe-field switching, FFS), and vertical arrangement (vertical Alignment, VA) etc. display pattern.In these display patterns, vertical arrangement (VA), in-plane switching (IPS) and fringing field are cut The characteristics of (FFS) all has wide viewing angle is changed, but VA displays are typical soft panel type displays, are not suitable on touch apparatus, It is the optimal selection for touch panel device and IPS and FFS displays have extraordinary hard screen feature.

Quick response can be obtained when positivity liquid crystal is used for IPS/FFS display patterns, and has good reliability；And Negative liquid crystal is used to that during IPS/FFS display patterns higher transmitance can be obtained, but is due to that negative liquid crystal viscosity is larger, institute It is slower with the response time.Therefore the Hybrid liquid crystal for negativity component being added in conventional positive liquid crystal compound arises at the historic moment, and makes It had both had the quick response advantage of positivity liquid crystal, while effective lifting of penetrance can be obtained again, and then can be significantly Reduce the overall power of liquid crystal display device.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of liquid-crystal composition of positive and negative mixing, and said composition is used for IPS and FFS mode liquid crystal display, by positivity liquid-crystal compounds and the excellent liquid crystal group of negative liquid crystal compound group synthesis performance Compound, to improve the light transmission rate of display, reduces the overall power of liquid crystal display.

In order to solve problem above, liquid-crystal composition proposed by the invention includes at least one compounds of formula I:

And at least one compounds of formula II：

Wherein, R₁、R₂、R₃C is represented independently of one another₁~C₁₂Straight chained alkyl, alkoxy or C₂~C₁₂Straight-chain alkenyl； n₁、n₂、n₃0 or 1 is represented independently of one another；L₁、L₂H or F is represented independently of one another；L₃、L₄H or CH is represented independently of one another₃, its In at least one represent CH₃；X represents F, CF₃Or OCF₃；A₁、A₂、A₃Represent independently of one another：

Wherein A₁、A₂、A₃In at least one represent

A₄、A₅、A₆Represent independently of one another：

Compound representated by formula I provided by the present invention is the fluoride compounds of 2,3- bis- containing cyclohexene, Such compound has negative dielectric anisotropy and low rotary viscosity performance.

Specifically, one or more of the compounds of formula I provided by the present invention in Formulas I-A~Formulas I-M：

Wherein R₁Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl, R₂Represent C₁~C₈Straight chained alkyl or alkane Epoxide.

Preferably, one or more of the liquid-crystal compounds provided by the present invention in Formulas I-A-1~Formulas I-M-15：

It is highly preferred that compounds of formula I provided by the present invention is selected from Formulas I-A-10, I-A-12, I-A-14, I-A- 16th, I-A-22, I-B-10, I-B-12, I-B-14, I-B-16, I-B-22, I-C-1, I-C-2, I-C-9~I-C-18, I-C- 27th, I-C-28, I-C-29, I-C-33, I-C-34, I-C-35, I-D-1, I-D-2, I-D-9~I-D-18, I-D-27, I-D- 28th, I-D-29, I-D-33, I-D-34, I-D-35, I-E-1, I-E-2, I-E-9~I-E-18, I-E-27, I-E-28, I-E- 29th, I-E-33, I-E-34, I-E-35, I-F-1, I-F-2, I-F-9~I-F-18, I-F-27, I-F-28, I-F-29, I-F- 33rd, I-F-34, I-F-35, I-G-9~I-G-18, I-H-9~I-H-18, I-I-9~I-I-18, I-J-9~I-J-18, I-K- 6th, the one or more in I-K-7, I-L-6, I-L-7, I-M-6, I-M-7.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formulas I is advisable with 1%~60%, and preferably 3.5%~40%, suitable preferred scope is also entered One step includes such as 3.5%~35%, 3.5%~12%, 5%~12%, 4%~24%, 4%~30%.

Compounds of formula II provided by the present invention is the liquid-crystal compounds containing difluoro-methoxy bridged bond, such chemical combination Thing has greatly positive dielectric anisotropy.

Specifically, compounds of formula II provided by the present invention be selected from Formula II-A~Formula II-Z representated by one kind or It is a variety of：

Wherein R₃Represent C₂~C₈Straight chained alkyl.

Preferably, the one kind or many of compounds of formula II provided by the present invention in Formula II-A-1~Formula II-Z-4 Kind：

It is highly preferred that compounds of formula II provided by the present invention is selected from Formula II-E-2, II-E-3, II-F-1, II-F- 2nd, in II-F-3, II-F-4, II-J-2, II-K-1, II-K-2, II-M-2, II-M-3, II-P-1, II-P-2 one kind or many Kind.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formula II is advisable with 1%~60%, and preferably 5%~40%, suitable preferred scope is also entered One step includes such as 10%~30%, 20%~39%, 5%~19.5%, 5%~38%, 8.5%~30%.

Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more general formula IIIs：

Wherein R₄、R₅C is represented independently of one another₁~C₁₂Straight chained alkyl, unbranched alkoxy or C₂~C₁₂Straight-chain alkenyl, A₇、A₈Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented independently of one another.

Specifically, the one kind of the liquid-crystal compounds of general formula III provided by the present invention in formula III-A~formula III-C Or it is a variety of：

Wherein, R₄Represent C₁~C₈Straight chained alkyl, R₅Represent C₁~C₈Straight chained alkyl, unbranched alkoxy or C₂~C₈'s Straight-chain alkenyl.

Preferably, one or more of the compound representated by general formula III in formula III-A-1~formula III-C-24：

It is highly preferred that the compound representated by general formula III is selected from formula III-A-1~III-A-5, III-A-14, III-A- 19、III-A-24、III-A-25、III-B-2、III-B-4、III-B-18、III-B-22、III-C-2、III-C-4、III-C- 15th, the one or more in III-C-20.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by formula III is advisable with 0%~80%, is preferably essential component, when it is essential component When, suitable addition is 13%~60.5%, suitable preferred scope still further comprises such as 13%~41%, 19%~ 48%th, 41%~60.5%, 17%~60%, 55%~60.5%, 13%~48% etc..

Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula IV：

Wherein R₆、R₇C is represented independently of one another₁~C₁₂Straight chained alkyl, unbranched alkoxy or C₂~C₁₂Straight-chain alkenyl, A₉, represent Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene.

Specifically, the one kind or many of formula IV provided by the present invention liquid-crystal compounds in formula IV-A or formula IV-B Kind：

Wherein, R₆Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl, R₇Represent C₁~C₈Straight chained alkyl.

Preferably, one or more of the compound representated by formula IV in formula IV-A-1~formula IV-B-28：

It is highly preferred that the compound representated by formula IV is selected from formula IV-A-1, IV-A-2, IV-A-6, IV-A-10, IV-A- 17th, the one or more in IV-A-25, IV-B-1, IV-B-2, IV-B-6, IV-B-8, IV-B-17, IV-B-19.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by formula IV is advisable with 0%~40%, preferably 0%~30% (more preferably 0%~25.5%), When its addition is not 0, suitable addition scope includes such as 12%~24%, 2%~25.5%, 13%~25.5%, 4% ~25.5% etc..

Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula V：

Wherein, R₈Represent C₁~C₁₂Straight chained alkyl or C₂~C₁₂Straight-chain alkenyl, L₅、L₆H or F is represented independently of one another, Y represents F or OCF₃, A₁₁Represent：

A₁₀Represent：

Specifically, the one kind or many of the compound representated by formula V provided by the present invention in Formula V-A~Formula V-Q Kind：

Wherein, R₈Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl；It is preferred that C₂~C₅Straight chained alkyl or straight Alkenyl.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formula V is advisable with 0%~42%, preferably 0%~39% (more preferably 0%~22% or 0~ 17%), when its addition is not 0, suitable addition scope includes such as 2%~42%, 4%~22%, 8%~39%, 5% ~17%, 5%~42% etc..

Ground provided by the present invention liquid-crystal composition is also comprising one or more compounds of formula VI：

Wherein, R₉Represent C₁~C₁₂Straight chained alkyl or C₂~C₁₂Straight-chain alkenyl, R₁₀Represent F, C₁~C₁₂Straight chain alkane Base or C₂~C₁₂Straight-chain alkenyl.

Specifically, one or more of the compounds of formula VI provided by the present invention in Formula IV-A or Formula IV-B：

Wherein, R₉、R₁₀C is represented independently of one another₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl；It is preferred that C₁~C₅'s Straight chained alkyl or C₂~C₅Straight-chain alkenyl.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formula IV is advisable with 0%~13%, preferably 0%~11% (more preferably 0%~25.5%), When its addition is not 0, suitable addition scope includes such as 3%~13%, 5%~11%, 7%~13%.

Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula VII：

Wherein, R₁₁、R₁₂C is represented independently of one another₁~C₁₂Straight chained alkyl, L₇、L₈H or F, A are represented independently of one another₁₂Generation Trans Isosorbide-5-Nitrae-the cyclohexyl of table or Isosorbide-5-Nitrae-phenylene.

Specifically, the one kind or many of compounds of formula VII provided by the present invention in Formula VII-A~Formula VII-C Kind：

Wherein, R₁₁、R₁₂C is represented independently of one another₁~C₈Straight chained alkyl；It is preferred that C₂~C₅Straight chained alkyl.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formula VII is advisable with 0%~15%, preferably 0%~8% (more preferably 0%~7%), when When its addition is not 0, suitable addition scope includes such as 2%~15%, 3%~8%, 2%~7%, 7%~15%.

Liquid-crystal composition provided by the present invention is also comprising the compound representated by one or more formula VIII：

Wherein, R₁₃Represent C₁~C₁₂Straight chained alkyl, L₉、L₁₀H is represented independently of one another or F, Z represent F or OCF₃, A₁₃、 A₁₄Represent independently of one another：

Specifically, the compound representated by formula VIII provided by the present invention is in Formula VIII-A~Formula VIII-L It is one or more：

Wherein, R₁₃Represent C₁~C₈Straight chained alkyl；It is preferred that C₂~C₅Straight chained alkyl.

In each technical scheme involved in the present invention, by taking any liquid-crystal composition as an example (gross mass is 100%), lead to The content range of compound representated by Formula VIII is advisable with 0%~19%, preferably 0%~14% (more preferably 0%~13%), When its addition is not 0, suitable addition scope includes such as 1%~19%, 3%~13%, 5%~18%, 1%~14% Deng.

In addition, in each technical scheme involved in the present invention, (gross mass is by taking any liquid-crystal composition as an example 100%), the total content scope of the compound representated by formula V~VIII is advisable with 0%~80%, when its addition is not 0 When, suitable addition scope includes such as 1%~60%, 3%~55%, 3%~37%, 3%~47%, 3%~55%, 4% ~35%, 14%~55%, 3%~41%, 3%~14%, 3%~25% etc..

For integral formula, liquid-crystal composition provided by the present invention includes following components in percentage by weight:

1), 1%~60% one or more lead to the compound representated by formula (I)；

2), 1%~60% one or more lead to the compound representated by formula (II)；

3), 0%~80% one or more lead to the compound representated by formula (III)；

4), 0%~40% one or more lead to the compound representated by formula (IV)；

5), 0%~80% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or liquid-crystal composition provided by the present invention, include following components in percentage by weight:

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 13%~60.5% one or more lead to the compound representated by formula (III)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 0%~42% one or more lead to the compound representated by formula (V)；

6), 0%~13% one or more lead to the compound representated by formula (VI)；

7), 0%~15% one or more lead to the compound representated by formula (VII)

8), 0%~19% one or more lead to the compound representated by formula (VIII).

Preferably, liquid-crystal composition provided by the present invention, includes following components in percentage by weight：

1), 1%~12% one or more lead to the compound representated by formula (I)；

2), 2%~50% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~60% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or：

1), 13%~40% one or more lead to the compound representated by formula (I)；

2), 5%~40% one or more lead to the compound representated by formula (II)；

3), 10%~50% one or more lead to the compound representated by formula (III)；

4), 10%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~40% one or more lead to the compound representated by formula (V)~logical formula (VIII).

It is highly preferred that liquid-crystal composition provided by the present invention, includes following components in percentage by weight：

1), 3.5%~12% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 17%~60.5% one or more lead to the compound representated by formula (III)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 4%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or：

1), 13%~35% one or more lead to the compound representated by formula (I)；

2), 10%~30% one or more lead to the compound representated by formula (II)；

3), 13%~41% one or more lead to the compound representated by formula (III)；

4), 12%~24% one or more lead to the compound representated by formula (IV)；

5), 0%~22% one or more lead to the compound representated by formula (V)；

5), 3%~15% one or more lead to formula (VII) and/or the compound representated by logical formula (VIII).

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~19.5% one or more lead to the compound representated by formula (II)；

3), 10%~65% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

Or：

1), 2%~30% one or more lead to the compound representated by formula (I)；

2), 20%~45% one or more lead to the compound representated by formula (II)；

3), 15%~55% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII).

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~19.5% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 20%~39% one or more lead to the compound representated by formula (II)；

3), 19%~48% one or more lead to the compound representated by formula (III)；

4), 0%~25% one or more lead to the compound representated by formula (IV)；

5), 3%~47% one or more lead to the compound representated by formula (V)~logical formula (VIII).

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~40% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

Or：

1), 3%~35% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 41%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 3%~40% one or more lead to the compound representated by formula (V)~logical formula (VIII).

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 13%~40% one or more lead to the compound representated by formula (III)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

Or：

1), 4%~30% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

3), 41%~60.5% one or more lead to the compound representated by formula (III)；

4), 0%~24% one or more lead to the compound representated by formula (IV)；

5), 4%~35% one or more lead to the compound representated by formula (V)~logical formula (VIII).

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 1%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~45% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or：

1), 3%~15% one or more lead to the compound representated by formula (I)；

2), 2%~45% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 10%~60% one or more lead to the compound representated by formula (V)~logical formula (VIII).

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

4), 2%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~41% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Or：

1), 5%~12% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

3), 17%~60% one or more lead to the compound representated by formula (III)；

4), 14%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII).

Most preferably, liquid-crystal composition provided by the present invention, is consisted of the following components in percentage by weight：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 8.5%~30% one or more lead to the compound representated by formula (II)；

3), 35%~60.5% one or more lead to the compound representated by formula (III)；

4), 13%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~14% one or more lead to formula (VI) and/or the compound representated by logical formula (VII).

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~50% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~45% one or more lead to the compound representated by formula (V)；

5), 0%~25% one or more lead to the compound representated by formula (VI)~logical formula (VIII).

Or：

1), 3%~30% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 30%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 2%~30% one or more lead to the compound representated by formula (VI)~logical formula (VIII).

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 13%~48% one or more lead to the compound representated by formula (III)；

4), 0%~24% one or more lead to the compound representated by formula (IV)；

5), 2%~42% one or more lead to the compound representated by formula (V)；

5), 0%~21% one or more lead to the compound representated by formula (VI)~logical formula (VIII).

Or：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~25% one or more lead to the compound representated by formula (VI)~logical formula (VIII).

In addition, in above-mentioned liquid-crystal composition (each formula), the mass percent summation of each component is 100%.

In liquid-crystal composition provided by the present invention, the compound representated by formula I have dielectric anisotropy for it is negative (- Δ ε), therefore with big vertical dielectric constant (ε_⊥), there can be the vertical dielectric constant of lower lifting liquid-crystal composition.

II type of structured compound provided by the present invention has big positive dielectric anisotropy (+Δ ε), and with excellent Intersolubility advantage, for lifted liquid-crystal composition dielectric anisotropy it is highly effective.

Two ring structure compounds representated by Group III formula provided by the present invention are non-polar component.Such compound It is that the liquid crystal compound of allotment quick response is essential for reducing the viscosity of system, improving response speed effect significantly One class compound.

Compound representated by IV classes formula provided by the present invention is three ring non-polar conformations, and it has big elasticity often Number (K₁₁、K₂₂、K₃₃) and low rotary viscosity, there is positive effect for the elastic constant for lifting liquid-crystal composition.

Compound representated by V classes formula provided by the present invention is three ring polar structures, and with larger polarity, its is mutual Dissolubility is good, is conducive to the sex chromosome mosaicism that mixes of the highly polar I classes of improvement and non-polar monomer.

Compound representated by VI classes formula provided by the present invention is terphenyl structure, each to different with big optics Property, it can effectively lift the optical anisotropy of liquid-crystal composition.

Compound representated by VII classes formula provided by the present invention is tetracyclic structure, with big optical anisotropy With high clearing point performance, there is remarkable result for the clearing point and optical anisotropy for lifting composition.

Compound representated by VIII classes formula provided by the present invention is Fourth Ring polarity, with larger polarity and high Clearing point, has remarkable result for the clearing point for lifting liquid-crystal composition.

During positive dielectric anisotropy liquid crystal composition addition negative dielectric anisotropic composition increase display effect is seen earliest In state patent CN103320142, compound I provided by the present invention is to contain 2- methyl -3,4,5- trifluorophenyls and two The compound of fluorine methoxyl group (- CF2O-), the compound of the structure has big dielectric anisotropy, secondly the methyl of position is reprimand Electron group, can effectively increase the dielectric anisotropy of the compound, wherein I-C classes monocrystalline is the liquid crystal containing dioxygen heterocycle Compound, the structure has big vertical dielectric, is also to lift one of method of liquid-crystal composition vertical dielectric.

The preparation method of liquid-crystal composition of the present invention can be changed two or more using conventional method without specifically limited Compound mixing is produced, such as by mixing different component at high temperature and prepared by method soluble in one another, wherein, by liquid crystal group Compound is dissolved in the solvent for the compound and mixed, and the solvent is then distilled out under reduced pressure；Or it is of the present invention Liquid-crystal composition can be prepared conventionally, and the wherein less component of content is such as dissolved in into content at a higher temperature In larger key component, or each affiliated component dissolved in organic solvent, such as acetone, chloroform or methanol then will be molten Liquid mixing is obtained after removing solvent.

Invention also provides application of the above-mentioned liquid-crystal composition in liquid crystal display device, liquid crystal group of the present invention Compound has low viscosity, high resistivity, good low temperature intersolubility, fast response speed and excellent light transmission rate, can Fast-response liquid crystal display for plurality of display modes.Current FFS and IPS has become the display pattern of most main flow, but FFS and The problem of transmitance present in IPS is low is as key issue to be solved；Device producer is typically by lifting backlight illumination The method of lifting brightness is reached, but the power consumption thereby resulted in substantially increases；It is found through experiments that, with big vertical dielectric Liquid-crystal composition there is high transmitance, therefore the problem of lifting brightness can be reached and do not increase power consumption.The present invention The liquid-crystal composition provided has big vertical dielectric, can effectively lift the light transmission rate of liquid crystal display, particularly In the display of FFS and IPS display patterns.

Brief description of the drawings

Fig. 1 is the light transmission rate comparison diagram of embodiment 7 and comparative example 1；

Fig. 2 is the light transmission rate comparison diagram of embodiment 62 and comparative example 2.

Embodiment

Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.

All liquid-crystal compounds used in the present invention are all known compound, are provided by Bayi Space, can also be from it He originates purchased in market buy.

The preparation of liquid-crystal composition is adopted with the following method in the embodiment of the present invention：

The preparation of uniform liquid crystal is weighed by weight percentage with balance first using the heat of solution method generally used in the industry Liquid-crystal compounds, wherein weigh addition sequence without particular requirement, generally with liquid-crystal compounds fusing point order from high to low successively Mixing is weighed, heating stirring causes each component to melt uniformly at 60-100 DEG C, then through filtering, revolving, finally encapsulation produces mesh Standard specimen product.

Unless otherwise indicated, percentage is weight percentage in context, and all temperature is degree Celsius to provide.Under use State abbreviation：

Δ n is optical anisotropy (25 DEG C), and Δ ε is dielectric anisotropy (25 DEG C, 1000Hz), ε_⊥For vertical dielectric (25 DEG C, 1000Hz), Cp is the clearing point (DEG C) of liquid-crystal composition, and γ 1 is rotary viscosity (25 DEG C, mpa.s), K₁₁、K₂₂、K₃₃ Respectively splay, distortion, bend elastic constant (25 DEG C, pN).

For the ease of representing, in following examples, unit structure is represented with code shown in following table in liquid-crystal compounds：

By taking following structure as an example：

The structure is represented with code listed by upper table, then it represents that be 3APUQKF.

For another example following structure:

The structure is represented with code listed by upper table, then it represents that be 4SGIWO1.

For another example following structure:

The structure is represented with code listed by upper table, then it represents that be VYPWO1.

Embodiment 1：

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 1：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 1 of table 1

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	10	△n	0.104
II	3DUQKF	15	Δε	+8.8
					II	2DPUQKF	6	ε⊥	5.0
II	3DPUQKF	6	γ1	70
					III	3CCV	42	Cp	80
IV	VCCP1	9	K11	10.8
					VIII	3CPGUOCF3	10	K22	5.4
VIII	3PPGUF	2	K33	13.2

Embodiment 2

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 2：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 2 of table 2

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	6	△n	0.101
II	3CDUQKF	13	Δε	+12.0
					II	3PUQKF	10	ε_⊥	6.0
II	2APUQKF	10	γ1	90
					II	3APUQKF	5	Cp	89
III	3CCV	42	K₁₁	11.8
					VIII	2CCPUF	5	K₂₂	5.9
VIII	3CCPUF	5	K₃₃	15.5
					VIII	4CCPUF	4

Embodiment 3

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 3：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 3 of table 3

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CSWO2	5	△n	0.103
I	2CYW1	5	Δε	+11.0
					II	3CCQKF	13	ε_⊥	5.5
II	3PUQKF	12	γ1	116
					II	3APUQKF	14	Cp	90
III	3CCV	24	K₁₁	12.6
					IV	VCCP1	9	K₂₂	6.3
V	3CCUF	10	K₃₃	15.6
					VIII	2CCPUF	4
VIII	3CCPUF	4

Embodiment 4

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 4：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 4 of table 4

Embodiment 5

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 5：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 5 of table 5

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2CYW1	9	△n	0.102
II	3CCQKF	19	Δε	+9.0
					III	5CCV	13	ε_⊥	5.1
III	3CCV1	4	Cp	101
					V	2CCUF	8	γ1	112
V	3CCUF	8	K₁₁	13.6
					V	3CPUF	23	K₂₂	6.8
VIII	2CCPUF	4	K₃₃	17.5
					VIII	3CCPUF	4
VIII	4CCPUF	4
					VIII	5CCPUF	4

Embodiment 6

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 6：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 6 of table 6

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCW1	10	△n	0.093
II	3PUQKF	5	Δε	+3.0
					III	3CCV	40	ε_⊥	3.8
III	5CCV	10	Cp	85
					III	2CC3	10	γ1	55
VII	4CPGP3	5	K₁₁	14.4
					VII	5CPGP2	5	K₂₂	7.2
VII	5CPGP3	5	K₃₃	16.4
					VIII	3DPGUF	10

Embodiment 7

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 7：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 7 of table 7

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	4	△n	0.099
II	3PGUQKF	8.5	Δε	+2.6
					III	3CCV	40	ε_⊥	2.8
III	3CCV1	10	Cp	83
					III	5CCV1	5.5	γ1	54
III	5PP1	5	K₁₁	13.8
					IV	VCCP1	12.5	K₂₂	6.9
IV	V2CCP1	5	K₃₃	16.4
					VI	2PGPF	6.5
VI	3PGPF	3

Embodiment 8

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When institute

The performance parameter of the liquid-crystal composition obtained is shown in Table 8：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 8 of table 8

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SWY3	10	△n	0.100
II	3APUQKF	10	Δε	+7.5
					II	3PUQKF	12	ε_⊥	4.4
III	3CCV	45	Cp	75
					V	3CCUF	10	γ1	60
VI	2PGP5	4	K₁₁	10.8
					VIII	2CCPUF	3	K₂₂	5.4
VIII	3CCPUF	3	K₃₃	12.4
					VIII	4CCPUF	3

Embodiment 9

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 9：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 9 of table 9

Embodiment 10

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 10：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 10 of table 10

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCWO2	6	△n	0.102
II	3PUQKF	5	Δε	+8.5
					II	3CCQKF	15	ε_⊥	5.1
II	2APUQKF	5	Cp	101
					II	3DPUQKF	9	γ1	100
III	3CCV	34	K₁₁	13.6
					III	3CCV1	2	K₂₂	6.8
IV	VCCP1	2	K₃₃	18.5
					V	3CCUF	10
VII	3CPPC3	4
					VIII	3CCPUF	4
VIII	3CPGUOCF₃	4

Embodiment 11

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 11：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 11 of table 11

The composition that the embodiment is provided possesses the fast response time, especially shows under low-temperature condition, is suitable for fast Response liquid crystal display device.

Embodiment 12

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 12：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 12 of table 12

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CYWO2	8	△n	0.097
II	2APUQKF	5	Δε	+11.5
					II	3APUQKF	8	ε_⊥	6.2
II	3DCQKF	13	Cp	91
					III	3CCV	19	γ1	129
V	VCCGF	10	K₁₁	12.6
					V	2CCUF	5	K₂₂	6.3
V	3CCUF	10	K₃₃	16.3
					V	5CCUF	5
V	3CPGF	5
					V	5CPUF	2
V	3CGUF	5
					VIII	3CCPUF	5

Embodiment 13

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 13：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 13 of table 13

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCWO2	13	△n	0.105
II	3CCQKF	15	Δε	+8.6
					II	3PUQKF	15	ε_⊥	5.2
III	3CCV	24	Cp	100
					IV	V2CCP1	10	γ1	114
V	3CPUF	10	K₁₁	12.6
					VIII	2CCPUF	4	K₂₂	6.3
VIII	3CCPUF	5	K₃₃	16.3
					VIII	4CCPUF	4

Embodiment 14

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 14：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 14 of table 14

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2CYW1	6	△n	0.103
II	3PUQKF	8	Δε	+6.5
					III	3CCV	27	ε_⊥	4.6
III	3CCV1	5	Cp	90
					IV	VCCP1	13	γ1	66
IV	V2CCP1	11	K₁₁	12.2
					V	3CCUF	4	K₂₂	6.1
V	3CPUF	9	K₃₃	16.6
					V	3CGUF	7
V	2PGUF	3
					VIII	3CCPUF	7

Embodiment 15

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 15：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 15 of table 15

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2CCWO2	5	△n	0.101
II	3PUQKF	15	Δε	+6.5
					III	3CCV	36	ε_⊥	4.3
IV	VCCP1	10	Cp	90
					IV	V2CCP1	10	γ1	64
V	3CPUF	10	K₁₁	12.2
					VIII	2CCPUF	4	K₂₂	6.1
VIII	3CCPUF	4	K₃₃	16.6
					VIII	4CCPUF	4
VIII	5CCPUF	2

Embodiment 16

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 16：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 16 of table 16

Embodiment 17

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 17：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 17 of table 17

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SPWO2	4.5	△n	0.100
II	3PUQKF	12	Δε	+6.0
					II	2APUQKF	5.5	ε_⊥	3.5
III	3CCV	42	Cp	93
					III	1PP2V	3	γ1	72
IV	3CPP2	4	K₁₁	12.5
					V	2CCGF	10	K₂₂	6.3
VIII	2CCPGF	5	K₃₃	16.4
					VIII	3CCPGF	5
VIII	4CCPGF	5
					VIII	5CCPGF	4

Embodiment 18

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 18：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 18 of table 18

Embodiment 19

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 19：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 19 of table 19

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO1	6	△n	0.104
II	3DUQKF	7	Δε	6.2
					II	4DUQKF	7.5	ε_⊥	3.9
II	4DPUQKF	2	Cp	95
					III	3CCV	38.5	γ1	72
III	1PP2V	7	K₁₁	13.2
					IV	VCCP3	9	K₂₂	6.6
V	3CCGF	4	K₃₃	16.7
					VIII	2CCPGF	5
VIII	3CCPGF	5
					VIII	4CCPGF	5
VIII	5CCPGF	4

Embodiment 20

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 20：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 20 of table 20

Embodiment 21

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 21：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 21 of table 21

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CYWO2	6	△n	0.107
II	3PUQKF	12	Δε	6.5
					II	2APUQKF	4	ε_⊥	3.6
II	3APUQKF	4	Cp	85
					III	3CCV	33	γ1	67
III	3CCV1	8	K₁₁	12.7
					III	1PP2V1	5	K₂₂	6.4
IV	VCCP1	17	K₃₃	16.4
					IV	V2CCP1	7
VI	3PGP2V	3
					VIII	3PPGUF	1

Embodiment 22

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 22：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 22 of table 22

Embodiment 23

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 23：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 23 of table 23

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2YPWO1	5	△n	0.101
II	3PGUQKF	6	Δε	+5.3
					II	3PUQKF	10	ε_⊥	3.7
II	4DPUQKF	3	Cp	92
					III	3CCV	40	γ1	65
III	3CCV1	5	K₁₁	13.6
					IV	VCCP1	6	K₂₂	6.8
IV	3CPP2	4	K₃₃	17.5
					IV	3CCP1	6
V	3CCPOCF3	6
					V	5CCPOCF3	4
VI	2PGPF	5

Embodiment 24

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 24：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 24 of table 24

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2CSWO1	4.5	△n	0.103
II	3PUQKF	10.5	Δε	+6.3
					II	2APUQKF	8	ε_⊥	3.6
II	3APUQKF	7	Cp	93
					III	3CCV	45	γ1	68
IV	3CCP1	5	K₁₁	13.4
					IV	3CPP2	5	K₂₂	6.7
IV	VCCP1	10	K₃₃	16.3
					VII	3CPPC3	5

Embodiment 25

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 25：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 25 of table 25

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCWO1	5	△n	0.103
II	3PUQKF	10	Δε	+6.4
					II	2APUQKF	6	ε_⊥	3.5
II	3APUQKF	6	Cp	93
					II	4DPUQKF	3	γ1	68
III	3CCV	45	K₁₁	13.8
					IV	3CCP1	5	K₂₂	6.9
IV	3CPP2	5	K₃₃	16.6
					IV	VCCP1	10
VII	3CPPC3	5

Embodiment 26

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 26：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 26 of table 26

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCW1	8	△n	0.102
II	3PUQKF	12	Δε	+7.0
					II	2APUQKF	5	ε_⊥	4.2
III	5PP1	3	Cp	93
					III	3CCV	34	γ1	90
V	3CPGF	10	K₁₁	12.0
					V	3CCGF	10	K₂₂	6.0
VIII	2CCPGF	5	K₃₃	15.5
					VIII	3CCPGF	4
VIII	4CCPGF	5
					VIII	5CCPGF	4

Embodiment 27

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 27：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 27 of table 27

Embodiment 28

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 28：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 28 of table 28

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3YCW1	8	△n	0.102
II	3PUQKF	11	Δε	+6.3
					II	2APUQKF	5	ε_⊥	3.8
III	3CCV	34	Cp	98
					IV	3CPP2	5	γ1	84
IV	3CCP1	4	K₁₁	13.5
					V	3CPGF	9	K₂₂	6.8
V	3CCGF	12	K₃₃	16.4
					VII	3CPPC3	5
VIII	3CCPGF	3
					VIII	4CCPGF	4

Embodiment 29

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 29：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 29 of table 29

Embodiment 30

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 30：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 30 of table 30

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CYWO3	5	△n	0.099
II	3PUQKF	12	Δε	+7.5
					II	2APUQKF	8	ε_⊥	3.8
II	3PGUQKF	3	Cp	95
					III	3CCV	36	γ1	78
III	3CCV1	5	K₁₁	13.0
					IV	3CPP2	4	K₂₂	6.5
V	3CCGF	7	K₃₃	16.4
					V	3CCPOCF₃	6
VIII	2CCPGF	4
					VIII	3CCPGF	5
VIII	4CCPGF	5

Embodiment 31

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 31：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 31 of table 31

Embodiment 32

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 32：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 32 of table 32

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SPWO2	2	△n	0.100
I	3SWO2	2	Δε	7.7
					II	3PUQKF	10	ε_⊥	3.7
II	2APUQKF	8	Cp	92
					II	3APUQKF	7	γ1	79
II	4DUQKF	2	K₁₁	13.4
					II	4DPUQKF	3	K₂₂	6.7
III	3CCV	41	K₃₃	15.8
					IV	3CCP1	6
IV	VCCP1	11
					VII	3CPPC3	5
VII	3CGPC3	3

Embodiment 33

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 33：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 33 of table 33

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO1	6	△n	0.103
II	2APUQKF	8	Δε	7.7
					II	3APUQKF	7	ε_⊥	3.7
II	4DUQKF	2	Cp	93
					II	4DPUQKF	3	γ1	75
II	3PUQKF	10	K₁₁	13.6
					III	3CCV	41	K₂₂	6.8
IV	VCCP1	10	K₃₃	15.9
					IV	3CPP2	8
VII	3CPPC3	5

Embodiment 34

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 34：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 34 of table 34

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3YPW1	5	△n	0.111
II	3PUQKF	12	Δε	7.5
					II	2PGUQKF	2.5	ε_⊥	4.0
II	3PGUQKF	8	Cp	75
					III	3CCV	42	γ1	62
III	5PP1	6	K₁₁	11.0
					V	3CCGF	5.5	K₂₂	5.5
VI	2PGPF	4	K₃₃	12.4
					VI	3PGPF	4
VIII	2CCPGF	3
					VIII	3CCPGF	4
VIII	4CCPGF	4

Embodiment 35

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 35：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 35 of table 35

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2YGIWO1	6	△n	0.110
II	3PUQKF	12	Δε	5.0
					III	3CCV	41	ε_⊥	3.8
III	5PP1	7	Cp	78
					IV	3CPP2	6	γ1	55
V	3CPGF	7	K₁₁	12.2
					V	3CCGF	4	K₂₂	6.1
VI	2PGPF	7	K₃₃	12.7
					VIII	2CCPGF	3
VIII	3CCPGF	3
					VIII	4CCPGF	4

Embodiment 36

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 36：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 36 of table 36

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2YCW1	6	△n	0.109
II	3PUQKF	10	Δε	6.4
					II	3DUQKF	5	ε_⊥	3.6
III	3CCV	36	Cp	92
					IV	VCCP1	13	γ1	77
IV	V2CCP1	6	K₁₁	13.4
					V	3DPUF	10	K₂₂	6.7
VIII	2CCPUF	4	K₃₃	17.1
					VIII	3CCPUF	4
VIII	5CPGP3	6

Embodiment 37

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 37：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 37 of table 37

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	5	△n	0.103
I	2SCW1	5	Δε	+11.0
					II	3APUQKF	14	ε_⊥	5.9
II	3CCQKF	13	γ1	120
					II	3PUQKF	12	Cp	83
III	3CCV	24	K₁₁	12.6
					IV	VCCP1	9	K₂₂	6.3
V	3DGUF	10	K₃₃	15.6
					VIII	2CCPUF	4
VIII	3CCPUF	4

Embodiment 38

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 38：

The weight percent of each component when performance parameter in the liquid-crystal composition of the embodiment 38 of table 38

Embodiment 39

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 39：

The weight percent of each component when performance parameter in the liquid-crystal composition of 39 embodiment of table 39

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCWO2	7	△n	0.103
II	2APUQKF	6	Δε	+5.6
					II	4DPUQKF	3	ε_⊥	3.6
II	4DUQKF	2	γ1	70
					II	3PUQKF	11.5	Cp	92
III	3CCV	41.5	K₁₁	13.8
					IV	3CPP1	5	K₂₂	6.9
IV	3CPP2	7	K₃₃	17.5
					IV	VCCP1	12
VII	3CPPC3	5

Embodiment 40

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 40：

The weight percent of each component when performance parameter in the liquid-crystal composition of 40 embodiment of table 40

Embodiment 41

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 41：

The weight percent of each component when performance parameter in the liquid-crystal composition of 41 embodiment of table 41

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	5	△n	0.111
II	2APUQKF	6	Δε	+6.0
					II	4DPUQKF	3	ε_⊥	3.8
II	3PUQKF	12.5	γ1	58
					III	3CCV	42	Cp	80
III	5PP1	5	K₁₁	12.4
					IV	3CPP2	5	K₂₂	6.2
IV	3CCP1	3.5	K₃₃	13.5
					VI	2PGPF	6
VI	3PGPF	6
					VII	3CPPC3	4
VIII	3CCPGF	2

Embodiment 42

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 42：

The weight percent of each component when performance parameter in the liquid-crystal composition of 42 embodiment of table 42

Embodiment 43

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 43：

The weight percent of each component when performance parameter in the liquid-crystal composition of 43 embodiment of table 43

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SPWO2	8	△n	0.115
II	3PUQKF	12	Δε	+6.4
					II	4DPUQKF	3	ε_⊥	4.4
II	3PGUQKF	4.5	γ1	65
					III	3CCV	39	Cp	89
III	5PP1	5	K₁₁	12.8
					IV	3CPP1	5	K₂₂	6.4
IV	3CCP2	6.5	K₃₃	13.8
					V	3CPGF	10
VIII	2CCPGF	3
					VIII	3CCPGF	4

Embodiment 44

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 44：

The weight percent of each component when performance parameter in the liquid-crystal composition of 44 embodiment of table 44

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CSWO3	4.5	△n	0.119
II	2APUQKF	7	Δε	+6.3
					II	4DPUQKF	3	ε_⊥	4.1
II	3PUQKF	12.5	γ1	64
					III	3CCV	39	Cp	85
III	5PP1	6	K₁₁	12.5
					IV	3CPP2	7	K₂₂	6.3
VI	2PGPF	7	K₃₃	13.7
					VI	3PGPF	6
VII	3CPPC3	5
					VIII	3CCPGF	3

Embodiment 45

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 45：

The weight percent of each component when performance parameter in the liquid-crystal composition of 45 embodiment of table 45

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SCWO1	6	△n	0.1110
II	3PUQKF	10	Δε	+7.5
					II	2APUQKF	6	ε_⊥	3.7
II	2PGUQKF	4	γ1	84
					II	4DPUQKF	2	Cp	105
II	3PGUQKF	4	K₁₁	14.4
					III	3CCV	40	K₂₂	7.2
III	3CCV1	5	K₃₃	16.8
					IV	3CPP2	5
VII	3CPPC3	5
					VIII	3CCPGF	4
VIII	4CCPGF	5
					VIII	2CCPGF	4

Embodiment 46

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 46：

The weight percent of each component when performance parameter in the liquid-crystal composition of 46 embodiment of table 46

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	V2YWO2	5	△n	0.106
II	3PUQKF	3	Δε	+5.7
					II	2APUQKF	6	ε_⊥	3.4
II	2PGUQKF	4	γ1	75
					II	4DPUQKF	2	Cp	102
II	3PGUQKF	5	K₁₁	14.6
					III	3CCV	40	K₂₂	7.3
III	3CCV1	6	K₃₃	17.1
					IV	VCCP1	9
IV	3CPP2	5
					VII	3CPPC3	5
VIII	2CCPGF	3
					VIII	3CCPGF	3
VIII	4CCPGF	4

Embodiment 47

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 47：

The weight percent of each component when performance parameter in the liquid-crystal composition of 47 embodiment of table 47

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CYW1	6	△n	0.086
II	4DUQKF	5	Δε	+5.3
					II	2APUQKF	4	ε_⊥	3.5
II	4DPUQKF	3	γ1	67
					II	3PUQKF	8	Cp	90
III	3CCV	38	K₁₁	13.4
					III	3CC2	4	K₂₂	6.7
IV	VCCP1	11	K₃₃	16.7
					IV	V2CCP1	6
IV	3CCP1	7
					V	3CCGF	4
VII	3CPPC3	4

Embodiment 48

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 48：

The weight percent of each component when performance parameter in the liquid-crystal composition of 48 embodiment of table 48

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SWO2	3.5	△n	0.091
II	2APUQKF	4	Δε	+5.3
					II	4DPUQKF	3	ε_⊥	3.4
II	4DUQKF	3.5	γ1	71
					II	3PUQKF	9	Cp	90
III	3CCV	38	K₁₁	13.2
					IV	VCCP1	10	K₂₂	6.6
IV	V2CCP1	7	K₃₃	17.2
					IV	3CCP1	7
V	3CPGF	4
					V	3CCPOCF₃	6
VII	3CPPC3	5

Embodiment 49

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 49：

The weight percent of each component when performance parameter in the liquid-crystal composition of 49 embodiment of table 49

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3YCWO1	6	△n	0.097
II	4DUQKF	4	Δε	+5.4
					II	2APUQKF	4	ε_⊥	3.8
II	4DPUQKF	3	γ1	74
					II	3PUQKF	9	Cp	93
III	3CCV	30	K₁₁	13.7
					III	5PP1	5	K₂₂	6.9
III	3CPO1	3	K₃₃	16.9
					III	3CC2	4
IV	VCCP1	11
					IV	V2CCP1	6
IV	3CCP1	7
					VII	3CPPC3	4
VIII	3CCPGF	4

Embodiment 50

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 50：

The weight percent of each component when performance parameter in the liquid-crystal composition of 50 embodiment of table 50

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3YWO4	4	△n	0.106
II	4DUQKF	4	Δε	+5.8
					II	3PGUQKF	4	ε_⊥	3.5
II	4DPUQKF	3	γ1	72
					II	3PUQKF	9.5	Cp	91
III	3CCV	26.5	K₁₁	14.2
					III	3CCV1	5	K₂₂	7.1
III	5PP1	7	K₃₃	16.4
					IV	VCCP1	10
IV	3CCP1	6
					IV	3CPP2	7
V	3CCPOCF₃	6
					VII	3CPPC3	4
VIII	3CCPGF	4

Embodiment 51

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 51：

The weight percent of each component when performance parameter in the liquid-crystal composition of 51 embodiment of table 51

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2YPWO1	4	△n	0.112
II	4DUQKF	3	Δε	+5.6
					II	3PGUQKF	5	ε_⊥	3.4
II	4DPUQKF	3	γ1	74
					II	3PUQKF	9	Cp	92
III	3CCV	31	K₁₁	14.0
					III	5PP1	7	K₂₂	7.0
III	3CPO1	4	K₃₃	16.1
					IV	VCCP1	11
IV	3CCP1	6
					IV	3CPP2	7
VII	3CPPC3	5
					VIII	3CCPGF	5

Embodiment 52

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 52：

The weight percent of each component when performance parameter in the liquid-crystal composition of 52 embodiment of table 52

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SGIWO2	5.5	△n	0.113
II	3PGUQKG	4.5	Δε	5.7
					II	4DPUQKF	3	ε_⊥	3.7
II	3PUQKF	12	γ1	70
					III	3CCV	33	Cp	95
III	5PP1	7	K₁₁	14.4
					IV	VCCP1	9	K₂₂	7.2
IV	3CPP2	8	K₃₃	16.1
					IV	3CCP1	5
V	3CCPOCF₃	5
					VII	3CPPC3	4
VIII	3CCPGF	4

Embodiment 53

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 53：

The weight percent of each component when performance parameter in the liquid-crystal composition of 53 embodiment of table 53

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3CSW1	6	△n	0.123
II	3PGUQKG	4.5	Δε	5.5
					II	4DPUQKF	3	ε_⊥	3.5
II	3PUQKF	10	γ1	71
					III	3CCV	30	Cp	91
III	5PP1	7	K₁₁	14.2
					IV	VCCP1	12	K₂₂	7.1
IV	V2CCP1	6	K₃₃	15.7
					IV	3CPP2	2.5
IV	3CCP1	5
					VI	2PGPF	5
VI	3PGPF	5
					VII	3CPPC3	4

Embodiment 54

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 54：

The weight percent of each component when performance parameter in the liquid-crystal composition of 54 embodiment of table 54

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3SCWO2	5	△n	0.127
II	3PGUQKG	5	Δε	5.4
					II	4DPUQKF	3	ε_⊥	3.7
II	3PUQKF	10	γ1	73
					III	3CCV	30	Cp	95
III	5PP1	7	K₁₁	13.8
					IV	VCCP1	12	K₂₂	6.9
IV	3CPP2	7	K₃₃	16.3
					V	3CPGF	5
VI	2PGPF	6
					VI	3PGPF	5
VII	3CPPC3	5

Embodiment 55

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 55：

The weight percent of each component when performance parameter in the liquid-crystal composition of 55 embodiment of table 55

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SPWO2	7	△n	0.110
I	2SPW1	8	Δε	+4.0
					I	3YWO2	5	ε_⊥	5.3
I	3SWO2	5	γ1	72
					I	2CYWO1	10	Cp	85
II	3PUQKF	4.5	K₁₁	12.8
					II	4DUQKF	1.5	K₂₂	6.4
II	3PGUQKF	2.5	K₃₃	15.3
					II	4DPUQKF	1.5
III	3CCV	29
					III	5PP1	5
III	3CPO1	2
					IV	VCCP1	5.5
IV	3CCP1	3
					IV	3CPP2	3.5
V	3CPGF	2
					VII	3CPPC3	2
VIII	3CCPGF	3

Embodiment 56

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 56：

The weight percent of each component when performance parameter in the liquid-crystal composition of 56 embodiment of table 56

Embodiment 57

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 57：

The weight percent of each component when performance parameter in the liquid-crystal composition of 57 embodiment of table 57

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2YGIWO2	6	△n	0.099
II	4DUQKF	5	Δε	+6.5
					III	3CCV	30	ε_⊥	4.6
III	2CCV1	5	γ1	72
					IV	VCCP1	13	Cp	86
IV	V2CCP1	11	K₁₁	12.6
					V	2PGUF	3	K₂₂	6.3
V	3DCUF	4	K₃₃	15.8
					V	3DPUF	9
V	3DGUF	7
					VIII	3CCPUF	7

Embodiment 58

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 58：

The weight percent of each component when performance parameter in the liquid-crystal composition of 58 embodiment of table 58

Embodiment 59

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 59：

The weight percent of each component when performance parameter in the liquid-crystal composition of 59 embodiment of table 59

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	3YPWO2	4	△n	0.101
I	5YWO2	3	Δε	3.8
					I	2CYWO2	4	ε_⊥	4.5
I	3YWO2	4	γ1	70
					II	3PUQKF	9	Cp	90
II	4DUQKF	1.5	K₁₁	13.6
					II	3APUQKF	4.5	K₂₂	6.8
II	4DPUQKF	3	K₃₃	15.6
					III	3CCV	35
III	1PP2V	5
					IV	VCCP1	9
IV	V2CCP1	4.5
					IV	3CPP2	6
IV	3CCP1	4.5
					VII	3CPPC3	3

Embodiment 60

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 60：

The weight percent of each component when performance parameter in the liquid-crystal composition of 60 embodiment of table 60

Embodiment 61

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 61：

The weight percent of each component when performance parameter in the liquid-crystal composition of 61 embodiment of table 61

Classification	Component	Percentage by weight (%)	Performance parameter	Parameter value
					I	2SPWO2	6	△n	0.105
I	3SPWO2	6	Δε	2.2
					II	3PGUQKF	4.7	ε_⊥	3.5
II	3PUQKF	4	γ1	55
					III	3CCV	40	Cp	75
III	3CCV1	12	K₁₁	12.5
					III	5PP1	6	K₂₂	6.3
IV	VCCP1	13	K₃₃	14.3
					VI	2PGPF	6.3
VI	3PGPF	2

Embodiment 62

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 62：

The weight percent of each component when performance parameter in the liquid-crystal composition of 62 embodiment of table 62

Comparative example 1

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 63：

The weight percent of each component when performance parameter in the liquid-crystal composition of the comparative example 1 of table 63

Component	Percentage by weight (%)	Performance parameter	Parameter value
				3PGUQUF	6.5	△n	0.098
3APUQUF	5	Δε	+2.6
				3CCV	40	ε_⊥	2.6
3CCV1	12	γ1	52
				1V2PP1	7	Cp	80
VCCP1	13	K₁₁	13.6
				V2CCP1	12	K₂₂	6.8
2PGP3	4	K₃₃	16.2
				3PPGUF	0.5

Comparative example 7 and comparative example 1, its parameter such as table 64：

The comparative example 1 of table 64 and the performance parameter of embodiment 7

Project	Comparative example 1	Embodiment 7
			△n	0.098	0.099
Δε	+2.6	+2.6
			ε⊥	2.6	2.8
Cp	80	83
			γ1	52	54
K₁₁	13.6	13.8
			K₂₂	6.8	6.9
K₃₃	16.2	16.4

Understand by contrast, the vertical dielectric of embodiment 7 can effectively lift liquid crystal relative to the lifting of comparative example 1 10% or so The light transmission rate of display, plays transmitance lifting 3% or so, its optical data such as table 65：

The chromaticity coordinates and transmission measurement result of the comparative example 1 of table 65 and embodiment 7

Project	Comparative example 1	Embodiment 7
			Colour temperature	7901	7554
Brightness	24.18	24.99
			x	0.2947	0.2984
y	0.3105	0.3145

Its light transmission rate comparison diagram is shown in Fig. 1.

Comparative example 2

Take the liquid-crystal compounds of following percentage by weight and prepare liquid-crystal composition in heretofore described method, specifically match somebody with somebody When the performance parameter of the liquid-crystal composition of gained is shown in Table 66：

The weight percent of each component when performance parameter in the liquid-crystal composition of the comparative example 2 of table 66

Component	Percentage by weight (%)	Performance parameter	Parameter value
				3PGUQUF	8	△n	0.104
3CCV	40	Δε	+2.6
				3CCV1	12	ε_⊥	2.6
1PP2V1	7	γ1	76
				2PGPF	6	Cp	51
3PGPF	4	K₁₁	13.6
				VCCP1	10	K₂₂	6.8
V2CCP1	10	K₃₃	16.2
				3CPP2	3

Comparative example 62 and comparative example 2, its parameter such as table 67：

The comparative example 2 of table 67 and the performance parameter of embodiment 62

Project	Comparative example 2	Embodiment 62
			△n	0.104	0.104
Δε	+2.6	2.5
			ε_⊥	2.6	3.5
Cp	76	75
			γ1	51	56
K₁₁	13.6	12.5
			K₂₂	6.8	6.3
K₃₃	16.2	14.4

Understand by contrast, the vertical dielectric of embodiment 62 can effectively lift liquid crystal relative to the lifting of comparative example 2 30% or so The light transmission rate of display, plays transmitance lifting 6% or so, its optical data such as table 68：

The chromaticity coordinates and transmission measurement result of the comparative example 2 of table 68 and embodiment 62

Project	Comparative example 2	Embodiment 62
			Colour temperature	6421.00	6167
Brightness	27.16	28.67
			x	0.3140	0.3188
y	0.3304	0.3318

Its light transmission rate comparison diagram is shown in Fig. 2.

The proposed composition of invention has big vertical dielectric, and the transmitance that can effectively lift liquid crystal display is special Property, specific implementation lifts the parallel dielectric of liquid-crystal composition for addition class ii compound, adds I classes with negative dielectric Anisotropic compound increases the vertical dielectric of composition, and the rotation for reducing liquid-crystal composition using group iii compound is glued Degree, the liquid-crystal composition with fast corresponding and high transmittance is reached with this, and liquid-crystal composition provided by the present invention is used in IPS With FFS type liquid crystal displays.

Although above the present invention is described in detail with a general description of the specific embodiments, On the basis of the present invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Cause This, these modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.

Claims

1. a kind of positive and negative mixed liquid crystal composition, it is characterised in that：The composition includes at least one compounds of formula I:

And at least one compounds of formula II：

Wherein, R₁、R₂、R₃C is represented independently of one another₁~C₁₂Straight chained alkyl, alkoxy or C₂~C₁₂Straight-chain alkenyl；n₁、n₂、 n₃0 or 1 is represented independently of one another；L₁、L₂H or F is represented independently of one another；L₃、L₄H or CH is represented independently of one another₃, wherein at least One represents CH₃；X represents F, CF₃Or OCF₃；A₁、A₂、A₃Represent independently of one another：

Wherein A₁、A₂、A₃In at least one represent

A₄、A₅、A₆Represent independently of one another：

2. liquid-crystal composition according to claim 1, it is characterised in that：Compound representated by formula I is in following formula The one or more of representative compound：

Wherein R₁Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl, R₂Represent C₁~C₈Straight chained alkyl or alkoxy；

Preferably, one or more of the compound representated by formula I in Formulas I-A-1~Formulas I-M-15：

It is highly preferred that the compound representated by formula I is selected from Formulas I-A-10, I-A-12, I-A-14, I-A-16, I-A-22, I-B- 10th, I-B-12, I-B-14, I-B-16, I-B-22, I-C-1, I-C-2, I-C-9~I-C-18, I-C-27, I-C-28, I-C- 29th, I-C-33, I-C-34, I-C-35, I-D-1, I-D-2, I-D-9~I-D-18, I-D-27, I-D-28, I-D-29, I-D- 33rd, I-D-34, I-D-35, I-E-1, I-E-2, I-E-9~I-E-18, I-E-27, I-E-28, I-E-29, I-E-33, I-E- 34th, I-E-35, I-F-1, I-F-2, I-F-9~I-F-18, I-F-27, I-F-28, I-F-29, I-F-33, I-F-34, I-F- 35th, I-G-9~I-G-18, I-H-9~I-H-18, I-I-9~I-I-18, I-J-9~I-J-18, I-K-6, I-K-7, I-L-6, One or more in I-L-7, I-M-6, I-M-7.

3. liquid-crystal composition according to claim 1, it is characterised in that：Compound representated by the formula II is selected from formula One or more representated by II-A~Formula II-Z：

Wherein R₃Represent C₂~C₈Straight chained alkyl；

Preferably, one or more of the compound representated by formula II in Formula II-A-1~Formula II-Z-4：

It is highly preferred that the compound representated by formula II is selected from Formula II-E-2, II-E-3, II-F-1, II-F-2, II-F- 3rd, the one or more in II-F-4, II-J-2, II-K-1, II-K-2, II-M-2, II-M-3, II-P-1, II-P-2.

4. the liquid-crystal composition according to claim any one of 1-3, it is characterised in that：The liquid-crystal composition also includes one Plant or a variety of compounds selected from general formula III structure：

Wherein R₄、R₅C is represented independently of one another₁~C₁₂Straight chained alkyl, unbranched alkoxy or C₂~C₁₂Straight-chain alkenyl, A₇、A₈ Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene are represented independently of one another；

One or more of the compound in formula III-A~formula III-C representated by preferred formula III：

Wherein, R₄Represent C₁~C₈Straight chained alkyl, R₅Represent C₁~C₈Straight chained alkyl, unbranched alkoxy or C₂~C₈Straight chain Alkenyl；

It is highly preferred that one or more of the compound representated by general formula III in formula III-A-1~formula III-C-24：

It is highly preferred that compound representated by general formula III be selected from formula III-A-1~III-A-5, III-A-14, III-A-19, III-A-24、III-A-25、III-B-2、III-B-4、III-B-18、III-B-22、III-C-2、III-C-4、III-C-15、 One or more in III-C-20.

5. the liquid-crystal composition according to claim any one of 1-4, it is characterised in that：The liquid-crystal composition also includes one Plant or a variety of selected from compounds of formula IV：

Wherein R₆、R₇C is represented independently of one another₁~C₁₂Straight chained alkyl, unbranched alkoxy or C₂~C₁₂Straight-chain alkenyl, A₉Generation Table Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；

One or more of the compound in formula IV-A or formula IV-B representated by preferred formula IV：

Wherein, R₆Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl, R₇Represent C₁~C₈Straight chained alkyl；

More preferably one or more of the compounds of formula IV in formula IV-A-1~formula IV-B-28：

It is highly preferred that compound representated by general formula III be selected from formula IV-A-1, IV-A-2, IV-A-6, IV-A-10, IV-A-17, One or more in IV-A-25, IV-B-1, IV-B-2, IV-B-6, IV-B-8, IV-B-17, IV-B-19.

6. according to any one of the claim 1-5 liquid-crystal compositions, it is characterised in that：The liquid-crystal composition is also comprising one kind Or the compound representated by a variety of formula V：

Wherein, R₈Represent C₁~C₁₂Straight chained alkyl or C₂~C₁₂Straight-chain alkenyl, L₅、L₆H or F, Y generation are represented independently of one another Table F or OCF₃, A₁₁Represent：

A₁₀Represent：

One or more of the compound in Formula V-A~Formula V-Q representated by preferred formula V：

Wherein, R₈Represent C₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl；It is preferred that C₂~C₅Straight chained alkyl or straight chain alkene Base.

7. the liquid-crystal composition according to claim any one of 1-6, it is characterised in that：The liquid-crystal composition is also further Include the compound representated by one or more formula VI：

Wherein, R₉Represent C₁~C₁₂Straight chained alkyl or C₂~C₁₂Straight-chain alkenyl, R₁₀Represent F, C₁~C₁₂Straight chained alkyl or C₂ ~C₁₂Straight-chain alkenyl；

One or more of the compound in Formula IV-A or Formula IV-B representated by preferred formula VI：

Wherein, R₉、R₁₀C is represented independently of one another₁~C₈Straight chained alkyl or C₂~C₈Straight-chain alkenyl；It is preferred that C₁~C₅Straight chain Alkyl or C₂~C₅Straight-chain alkenyl；

And/or, the liquid-crystal composition is also comprising the compound representated by one or more formula VII：

Wherein, R₁₁、R₁₂C is represented independently of one another₁~C₁₂Straight chained alkyl, L₇、L₈H or F, A are represented independently of one another₁₂Represent anti- Formula Isosorbide-5-Nitrae-cyclohexyl or Isosorbide-5-Nitrae-phenylene；

One or more of the compound in Formula VII-A~Formula VII-C representated by preferred formula VII：

Wherein, R₁₁、R₁₂C is represented independently of one another₁~C₈Straight chained alkyl；It is preferred that C₂~C₅Straight chained alkyl；

And/or, the liquid-crystal composition is also comprising the compound representated by one or more formula VIII：

Wherein, R₁₃Represent C₁~C₁₂Straight chained alkyl, L₉、L₁₀H is represented independently of one another or F, Z represent F or OCF₃, A₁₃、A₁₄Respectively From independently representing：

One or more of the compound in Formula VIII-A~Formula VIII-L representated by preferred formula VIII：

8. liquid-crystal composition according to claim 7, it is characterised in that：Including following component

1), 1%~60% one or more lead to the compound representated by formula (I)；

2), 1%~60% one or more lead to the compound representated by formula (II)；

3), 0%~80% one or more lead to the compound representated by formula (III)；

4), 0%~40% one or more lead to the compound representated by formula (IV)；

5), 0%~80% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or:

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 0%~42% one or more lead to the compound representated by formula (V)；

6), 0%~13% one or more lead to the compound representated by formula (VI)；

7), 0%~15% one or more lead to the compound representated by formula (VII)

8), 0%~19% one or more lead to the compound representated by formula (VIII)；

Preferably, the liquid-crystal composition, includes following components in percentage by weight：

1), 1%~12% one or more lead to the compound representated by formula (I)；

2), 2%~50% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~60% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or：

1), 13%~40% one or more lead to the compound representated by formula (I)；

2), 5%~40% one or more lead to the compound representated by formula (II)；

3), 10%~50% one or more lead to the compound representated by formula (III)；

4), 10%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~40% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

It is highly preferred that the liquid-crystal composition, includes following components in percentage by weight：

1), 3.5%~12% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 4%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or：

1), 13%~35% one or more lead to the compound representated by formula (I)；

2), 10%~30% one or more lead to the compound representated by formula (II)；

3), 13%~41% one or more lead to the compound representated by formula (III)；

4), 12%~24% one or more lead to the compound representated by formula (IV)；

5), 0%~22% one or more lead to the compound representated by formula (V)；

5), 3%~15% one or more lead to formula (VII) and/or the compound representated by logical formula (VIII)；

Or, the liquid-crystal composition, include following components in percentage by weight：

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~19.5% one or more lead to the compound representated by formula (II)；

3), 10%~65% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

Or：

1), 2%~30% one or more lead to the compound representated by formula (I)；

2), 20%~45% one or more lead to the compound representated by formula (II)；

3), 15%~55% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~19.5% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 20%~39% one or more lead to the compound representated by formula (II)；

3), 19%~48% one or more lead to the compound representated by formula (III)；

4), 0%~25% one or more lead to the compound representated by formula (IV)；

5), 3%~47% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~40% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

Or：

1), 3%~35% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 41%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 3%~40% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 13%~40% one or more lead to the compound representated by formula (III)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

Or：

1), 4%~30% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

4), 0%~24% one or more lead to the compound representated by formula (IV)；

5), 4%~35% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 1%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~45% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or：

1), 3%~15% one or more lead to the compound representated by formula (I)；

2), 2%~45% one or more lead to the compound representated by formula (II)；

3), 10%~70% one or more lead to the compound representated by formula (III)；

4), 10%~60% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

4), 2%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~41% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Or：

1), 5%~12% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

3), 17%~60% one or more lead to the compound representated by formula (III)；

4), 14%~55% one or more lead to the compound representated by formula (V)~logical formula (VIII)；

Most preferably, the liquid-crystal composition, is consisted of the following components in percentage by weight：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 8.5%~30% one or more lead to the compound representated by formula (II)；

4), 13%~25.5% one or more lead to the compound representated by formula (IV)；

5), 3%~14% one or more lead to formula (VI) and/or the compound representated by logical formula (VII)；

1), 2%~40% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 10%~50% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 1%~45% one or more lead to the compound representated by formula (V)；

5), 0%~25% one or more lead to the compound representated by formula (VI)~logical formula (VIII)；

Or：

1), 3%~30% one or more lead to the compound representated by formula (I)；

2), 3%~45% one or more lead to the compound representated by formula (II)；

3), 30%~70% one or more lead to the compound representated by formula (III)；

4), 0%~30% one or more lead to the compound representated by formula (IV)；

5), 2%~30% one or more lead to the compound representated by formula (VI)~logical formula (VIII)；

1), 3.5%~35% one or more lead to the compound representated by formula (I)；

2), 5%~39% one or more lead to the compound representated by formula (II)；

3), 13%~48% one or more lead to the compound representated by formula (III)；

4), 0%~24% one or more lead to the compound representated by formula (IV)；

5), 2%~42% one or more lead to the compound representated by formula (V)；

5), 0%~21% one or more lead to the compound representated by formula (VI)~logical formula (VIII)；

Or：

1), 4%~24% one or more lead to the compound representated by formula (I)；

2), 5%~38% one or more lead to the compound representated by formula (II)；

4), 0%~25.5% one or more lead to the compound representated by formula (IV)；

9. liquid-crystal composition according to claim 8, it is characterised in that：In the liquid-crystal composition, the quality of each component Percentage summation is 100%.

10. the answering in liquid crystal display device of composition described in any one of the claim 1-9 compounds or claim 9 With；It is preferred that described liquid crystal display device is the liquid crystal display of FFS and IPS display patterns.