TW202014504A - Liquid crystal composition, liquid crystal display element, and liquid crystal display prominent in having good solubility at low temperature - Google Patents

Abstract

The present invention provides a liquid crystal composition, a liquid crystal display element, and a liquid crystal display. The liquid crystal composition of the present invention contains one or more compounds of Formula I, one or more compounds of Formula II, one or more compounds of Formula III, and one or more compounds of Formula IV. The liquid crystal composition provided by the present invention has a low viscosity, can realize a rapid response, and at the same time has moderate dielectric anisotropy [Delta][epsilon], moderate optical anisotropy [Delta]n, high stability to heat and light, and is especially prominent in having good solubility at low temperature.

Description

Liquid crystal composition, liquid crystal display element, liquid crystal display

The invention relates to the technical field of liquid crystal display. More specifically, it relates to a liquid crystal composition and a liquid crystal display element or a liquid crystal display.

Using the liquid crystal composition as a display material has obvious advantages, such as low driving voltage, small power consumption, high reliability, large amount of display information, color display, no flicker, and flat panel display. At present, there are more than 10,000 kinds of liquid crystal materials, among which there are thousands of commonly used liquid crystal display materials, which are classified according to the central bridge bond and ring characteristics of liquid crystal molecules, mainly including biphenyl liquid crystal, phenylcyclohexane liquid crystal, and esters Liquid crystals, acetylenes, difluoromethoxy bridges, ethanes and heterocycles, etc.

In order to make the performance of the display device closer to idealization, people have been working on new liquid crystal compositions, which has enabled the performance of the liquid crystal composition and the display device to continue to develop.

In fact, in many cases, the liquid crystal mixture can work at a very low temperature, especially for outdoor use, and it should be discussed that it can work for a long time at -30 ℃, which requires the liquid crystal composition to have a good low temperature The performance, that is to say, the liquid crystal composition is stored at a low temperature for a long time, and no monomer is precipitated, so it is still necessary to develop a liquid crystal composition having good miscibility at a low temperature.

In order to solve the above technical problems, the present inventors conducted in-depth research and found that the present invention has a low viscosity and can achieve a rapid response, while having moderate dielectric anisotropy Δε, moderate optical anisotropy Δn , High stability to heat and light, especially outstanding is the liquid crystal composition with good low temperature miscibility.

One of the objects of the present invention is to provide a liquid crystal composition containing one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III, and one or more compounds represented by formula IV ,

I

I

II

II

Ⅲ

Ⅲ

IV

IV

Wherein, R ₁ , R ₂ , R ₅ , R ₇ , and R ₈ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, and 2 carbon atoms -10 alkenyl, fluorine-substituted alkenyl having 2-10 carbon atoms, alkenyloxy having 3-8 carbon atoms or fluorine-substituted alkenyloxy having 3-8 carbon atoms ; R ₃ and R ₄ represent an alkyl group having 1-10 carbon atoms, a fluorine-substituted alkyl group having 1-10 carbon atoms, a carbon atom having 1-10 alkoxy groups, and a fluorine-substituted carbon atom number; Alkoxy groups of 1-10, alkenyl groups of 2-10 carbon atoms, alkenyl groups of 2-10 carbon atoms substituted by fluorine, alkenyloxy groups of 3-8 carbon atoms or fluorine Substituted alkenyloxy group having 3-8 carbon atoms; R ₆ is cyclopropyl, cyclobutyl or cyclopentyl;

Z ₁ and Z ₂ each independently represent a single bond, -CH ₂ CH ₂ -or -CH ₂ O-;

、

各自獨立地表示1,4-亞苯基或1,4-亞環己基，

,

Each independently represents 1,4-phenylene or 1,4-cyclohexylene,

m and n independently represent 0, 1 or 2; and m+n≥1,

X represents O or S.

Another object of the present invention is to provide a liquid crystal display element or liquid crystal display, which contains the liquid crystal composition of the present invention.

The liquid crystal composition of the present invention can realize a rapid reaction, and at the same time has moderate dielectric anisotropy Δε, moderate optical anisotropy Δn, high stability to heat and light, and particularly outstanding is good low temperature miscibility.

The liquid crystal display element or liquid crystal display of the embodiment of the present invention has a wide nematic phase temperature range, a suitable or high birefringence anisotropy Δn, very high resistivity, good ultraviolet resistance, and high charge Features of retention rate and low vapor pressure.

The liquid crystal composition of the present invention contains one or more compounds represented by formula I, one or more compounds represented by formula II, one or more compounds represented by formula III, and one or more compounds represented by formula IV,

I

I

II

II

Ⅲ

Ⅲ

IV

IV

Wherein, R ₁ , R ₂ , R ₅ , R ₇ , and R ₈ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, and 2 carbon atoms -10 alkenyl, fluorine-substituted alkenyl having 2-10 carbon atoms, alkenyloxy having 3-8 carbon atoms or fluorine-substituted alkenyloxy having 3-8 carbon atoms ; R ₃ and R ₄ represent an alkyl group having 1-10 carbon atoms, a fluorine-substituted alkyl group having 1-10 carbon atoms, a carbon atom having 1-10 alkoxy groups, and a fluorine-substituted carbon atom number; Alkoxy groups of 1-10, alkenyl groups of 2-10 carbon atoms, alkenyl groups of 2-10 carbon atoms substituted by fluorine, alkenyloxy groups of 3-8 carbon atoms or fluorine Substituted alkenyloxy group having 3-8 carbon atoms; R ₆ is cyclopropyl, cyclobutyl or cyclopentyl;

Z ₁ and Z ₂ each independently represent a single bond, -CH ₂ CH ₂ -or -CH ₂ O-;

、

各自獨立地表示1,4-亞苯基或1,4-亞環己基，

,

Each independently represents 1,4-phenylene or 1,4-cyclohexylene,

m and n independently represent 0, 1 or 2; and m+n≥1,

X represents O or S.

In the liquid crystal composition of the present invention, the aforementioned one or more compounds represented by Formula II are preferably selected from the group consisting of compounds represented by Formula II1-II9.

II1

II1

II2

II2

II3

II3

II4

II4

II5

II5

II6

II6

II7

II7

II8

II8

II9

II9

Where R ₃ and R ₄ represent an alkyl group having 1-10 carbon atoms, a fluorine-substituted alkyl group having 1-10 carbon atoms, a carbon atom having 1-10 alkoxy groups, and a fluorine-substituted carbon atom Alkoxy group having 1-10 carbon atoms, alkenyl group having 2-10 carbon atoms, fluorine-substituted alkenyl group having 2-10 carbon atoms, alkenyloxy group having 3-8 carbon atoms or Alkenyloxy group having 3-8 carbon atoms substituted by fluorine.

In the liquid crystal composition of the present invention, the aforementioned one or more compounds represented by Formula III are preferably selected from the group consisting of compounds represented by Formula III1-III6.

Ⅲ1

Ⅲ1

Ⅲ2

Ⅲ2

Ⅲ3

Ⅲ3

Ⅲ4

Ⅲ4

Ⅲ5

Ⅲ5

Ⅲ6

Ⅲ6

Where R ₅ represents an alkyl group having 1-10 carbon atoms, a fluorine-substituted alkyl group having 1-10 carbon atoms, an alkenyl group having 2-10 carbon atoms, and a fluorine-substituted carbon atom having 2 -10 alkenyl group, alkenyloxy group having 3-8 carbon atoms or fluorine-substituted alkenyloxy group having 3-8 carbon atoms.

In the liquid crystal composition of the present invention, the aforementioned one or more compounds represented by formula IV are preferably selected from the group consisting of compounds represented by formula IV1-IV11

Ⅳ1

Ⅳ1

Ⅳ2

Ⅳ2

Ⅳ3

Ⅳ3

Ⅳ4

Ⅳ4

Ⅳ5

Ⅳ5

Ⅳ6

Ⅳ6

Ⅳ7

Ⅳ7

Ⅳ8

Ⅳ8

Ⅳ9

Ⅳ9

Ⅳ10

Ⅳ10

Ⅳ11

Ⅳ11

As a preferred technical solution, in the liquid crystal composition of the present application, the total weight percentage of one or more compounds represented by Formula I is preferably 0.1 to 10%, and the total weight percentage of one or more compounds represented by Formula II is preferably 10 to 60%, the total weight percentage of one or more compounds represented by formula III is preferably 1 to 15%, and the total weight percentage of one or more compounds represented by formula IV is preferably 10 to 60%.

In the liquid crystal composition of the present application, optionally, one or more compounds represented by formula V may also be included:

V

V

Wherein R ₉ and R ₁₀ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or a fluorine substitution Alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and alkenes having 3-8 carbon atoms Oxygen or fluorine substituted alkenyloxy group having 3-8 carbon atoms, and any one or more unconnected -CH ₂ -in the groups represented by R ₉ and R ₁₀ are each independently optionally ring-substituted Propyl substitution

、

各自獨立地表示1,4-亞苯基、氟代1,4-亞苯基、1,4-亞環己基，且

、

不同時為1,4-亞環己基；

,

Each independently represents 1,4-phenylene, fluoro 1,4-phenylene, 1,4-cyclohexylene, and

,

Not simultaneously 1,4-cyclohexylene;

p represents 0 or 1.

In the liquid crystal composition of the present invention, when the compound represented by the aforementioned formula V is contained, the aforementioned one or more compounds represented by the formula V are preferably selected from the group consisting of compounds represented by the formulas V1-V8,

Ⅴ1

Ⅴ1

Ⅴ2

Ⅴ2

Ⅴ3

Ⅴ3

Ⅴ4

Ⅴ4

Ⅴ5

Ⅴ5

Ⅴ6

Ⅴ6

Ⅴ7

Ⅴ7

Ⅴ8

Ⅴ8

R ₉ and R ₁₀ each independently represent an alkyl group having 1 to 10 carbon atoms, an alkyl group having 1 to 10 carbon atoms substituted by fluorine, an alkoxy group having 1 to 10 carbon atoms, and a carbon substituted by fluorine Alkoxy groups having 1 to 10 atoms, alkenyl groups having 2 to 10 carbon atoms, fluorine-substituted alkenyl groups having 2 to 10 carbon atoms, and alkenyl groups having 3 to 8 carbon atoms Or a fluorine-substituted alkenyloxy group having 3 to 8 carbon atoms, and any one or more unconnected -CH ₂ -in the groups represented by R ₉ and R ₁₀ are each independently optionally cyclopropylene replace.

In the liquid crystal composition of the present application, optionally, one or more compounds represented by formula VI may also be included:

Ⅵ

Ⅵ

Wherein R ₁₁ and R ₁₂ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or a fluorine substitution Alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and alkenes having 3-8 carbon atoms Alkenyloxy groups with 3-8 carbon atoms substituted by oxy or fluorine;

表示1,4-亞苯基、1,4-亞環己基或1,4-亞環己烯基；

Represents 1,4-phenylene, 1,4-cyclohexylene or 1,4-cyclohexenylene;

F ₁ , F ₂ or F ₃ each independently represent H or F, and F ₂ and F _{3 are} not F at the same time.

In the liquid crystal composition of the present invention, when the aforementioned compound represented by Formula VI is contained, the aforementioned one or more compounds represented by Formula VI are preferably selected from the group consisting of compounds represented by Formula VI1-VI4:

Ⅵ1；

Ⅵ1;

Ⅵ2；

Ⅵ2;

Ⅵ3；

Ⅵ3;

Ⅵ4；

Ⅵ4;

Here, R ₁₁ and R ₁₂ each independently represent an alkyl group having 1 to 10 carbon atoms.

In the liquid crystal composition of the present application, optionally, one or more compounds represented by formula VII may also be included:

Ⅶ

Ⅶ

R ₁₃ and R ₁₄ each independently represent W-Sp-, H, Cl, F or an alkyl group having 1-12 carbon atoms; one or two of the alkyl groups having 1-12 carbon atoms are not in phase The adjacent CH ₂ groups are each optionally substituted with -O-, -CH ₂ =CH ₂ -, -CO-, -OCO-, or -COO-, wherein at least one of R ₁₃ and R ₁₄ represents W- Sp-;

、

各自獨立地表示亞苯基、被W-Sp-、Cl、F、碳原子數為1-12的烷基和/或碳原子數為1-12的烷氧基取代的亞苯基或茚滿基，其中所述碳原子數為1-12的烷基、所述碳原子數為1-12的烷氧基中一個或兩個不相鄰的-CH₂ -基團各自獨立地任選被-O-、-CH₂ =CH₂ -、-CO-、-OCO-或-COO-取代，且

與R₁₃ 在

的任意位置鍵合，

與R₁₄ 在

的任意位置鍵合；

,

Each independently represents a phenylene group, a phenylene group or indane substituted with W-Sp-, Cl, F, an alkyl group having 1 to 12 carbon atoms and/or an alkoxy group having 1 to 12 carbon atoms Group, wherein one or two non-adjacent -CH ₂ -groups in the alkyl group having 1 to 12 carbon atoms and the alkoxy group having 1 to 12 carbon atoms are each independently selected -O-, -CH ₂ =CH ₂ -, -CO-, -OCO- or -COO-, and

With R ₁₃ in

Bonding anywhere

With R ₁₄ in

Bonding at any position of

q means 0, 1 or 2;

W represents methacrylate group or acrylate group;

Z ₃ and Sp each independently represent a single bond, -COO-, -CH ₂ O- or -CH ₂ CH ₂ -.

The compound represented by Formula VII is a polymerizable compound and functions as a reactive mesogen (RM) in the liquid crystal composition.

When the liquid crystal composition of the present invention contains the aforementioned compound represented by formula VII, the compound represented by formula VII is more preferably selected from compounds represented by formulas VII1-VII8:

Ⅶ1

Ⅶ1

Ⅶ2

Ⅶ2

Ⅶ3

Ⅶ3

Ⅶ4

Ⅶ4

Ⅶ5

Ⅶ5

Ⅶ6

Ⅶ6

Ⅶ7

Ⅶ7

Ⅶ8。

Ⅶ8.

The polymerizable compound may be added to the liquid crystal composition alone, or a mixture of two or more polymerizable compounds may be used.

Another aspect of the present invention provides a liquid crystal display element or liquid crystal display comprising the aforementioned liquid crystal composition of the present invention. The liquid crystal display element or liquid crystal display of the present invention is an active matrix display element or display or a passive matrix display element or display.

Optionally, the aforementioned liquid crystal display element or liquid crystal display is preferably an active matrix addressable liquid crystal display element or liquid crystal display.

Optionally, the aforementioned active matrix display element or display is specifically a PSVA-TFT liquid crystal display element or display.

In order to explain the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those with ordinary knowledge in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not be used to limit the protection scope of the present invention.

In the present invention, the preparation methods are conventional methods without special instructions, and the raw materials used can be obtained from the disclosed commercial sources without special instructions. The percentages refer to the mass percentage, the temperature is in degrees Celsius (℃), and the liquid crystal compound also becomes Liquid crystal monomer, the specific meaning of other symbols and test conditions are as follows:

Cp means liquid crystal clear point (℃), DSC quantitative test;

Δn represents optical anisotropy, Δn=n _e -n _o , where n _o is the refractive index of ordinary light, n _{e is} the refractive index of unusual light, the test condition is 25±2℃, 589 nm, Abbe refractometer test;

Δε represents dielectric anisotropy, Δε=ε _∥ -ε _⊥ , where ε _∥ is the dielectric constant parallel to the molecular axis, ε _⊥ is the dielectric constant perpendicular to the molecular axis, the test condition is 25±0.5℃, 20 micron parallel box, INSTEC: ALCT-IR1 test;

γ1 represents rotational viscosity (mPa·s), the test condition is 25±0.5℃, 20 micron parallel box, INSTEC: ALCT-IR1 test;

The preparation method of the liquid crystal composition of the present invention is as follows: each liquid crystal monomer is weighed according to a certain ratio and placed in a stainless steel beaker, and the stainless steel beaker containing each liquid crystal monomer is placed on a magnetic stirring instrument to be heated and melted. After most of the liquid crystal monomers in the beaker melted, a magnetic rotor was added to the stainless steel beaker, the mixture was stirred evenly, and the liquid crystal composition was obtained after cooling to room temperature.

The liquid crystal monomer structure used in the embodiments of the present invention is represented by codes, and the code representation methods of the liquid crystal ring structure, end groups, and connecting groups are shown in Table 1 and Table 2 below.

Table 1 Corresponding codes of ring structure

Table 2 Corresponding codes of end groups and linking groups

Examples:

，其代碼為CC-Cp-V1；

, The code is CC-Cp-V1;

，其代碼為PGP- Cpr1-2；

, Its code is PGP-Cpr1-2;

，其代碼為COY-3-O2；

, The code is COY-3-O2;

其代碼為CCY-4-O2。

The code is CCY-4-O2.

Example 1:

The formula and corresponding properties of the liquid crystal composition are shown in Table 3 below.

Table 3 Formulation and corresponding properties of Example 1 liquid crystal composition

The content of each liquid crystal compound in Example 1 was calculated on the basis that the total content of the compounds represented by Formula I, Formula II, Formula III, and Formula IV in the liquid crystal composition of Example 1 was 100%.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 2:

The formulation and corresponding properties of the liquid crystal composition are shown in Table 4 below.

Table 4 Formulation and corresponding properties of Example 2 liquid crystal composition

The content of each liquid crystal compound in Example 2 was calculated on the basis that the total content of the compounds represented by Formula I, Formula II, Formula III, and Formula IV in the liquid crystal composition of Example 2 was 100%.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 3:

The formulation and corresponding properties of the liquid crystal composition are shown in Table 5 below.

Table 5 Formulation and corresponding properties of Example 3 liquid crystal composition

The content of each liquid crystal compound in Example 3 was calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, and Formula V in the liquid crystal composition of Example 3 being 100%.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 4:

The formula and corresponding properties of the liquid crystal composition are shown in Table 6 below.

Table 6 Formulation and corresponding properties of Example 4 liquid crystal composition

The content of each liquid crystal compound in Example 4 was calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, and Formula V in the liquid crystal composition of Example 4 being 100%.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 5:

The formula and corresponding properties of the liquid crystal composition are shown in Table 7 below.

Table 7 Formulation and corresponding properties of Example 5 liquid crystal composition

The content of each liquid crystal compound in Example 5 is calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, Formula V, and Formula VI in the liquid crystal composition of Example 5 as 100% of.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 6:

The formula and corresponding properties of the liquid crystal composition are shown in Table 8 below.

Table 8 Formulation and corresponding properties of Example 6 liquid crystal composition

The content of each liquid crystal compound in Example 6 is calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, Formula V, and Formula VI in the liquid crystal composition of Example 6 as 100% of.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 7:

The formulation and corresponding properties of the liquid crystal composition are shown in Table 9 below.

Table 9 Formulation and corresponding properties of the liquid crystal composition of Example 7

The content of each liquid crystal compound in Example 7 was calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, and Formula VI in the liquid crystal composition of Example 7 being 100%.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 8:

The formula and corresponding properties of the liquid crystal composition are shown in Table 10 below.

Table 10 Formulation and corresponding properties of Example 8 liquid crystal composition

The content of each liquid crystal compound in Example 8 is calculated based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, Formula V, and Formula VII in the liquid crystal composition of Example 8 as 100% of.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Example 9:

The formula and corresponding properties of the liquid crystal composition are shown in Table 10 below.

Table 10 Formulation and corresponding properties of the liquid crystal composition of Example 9

The content of each liquid crystal compound in Example 9 is based on the total content of the compounds represented by Formula I, Formula II, Formula III, Formula IV, Formula V, Formula VI, and Formula VII in the liquid crystal composition of Example 9 as 100% To calculate.

The obtained liquid crystal composition was placed in a 10 ml glass bottle and stored at -30°C for 100 hours without crystal precipitation.

Comparative Example 1

The formula and corresponding properties of the liquid crystal composition are shown in Table 11 below.

Table 11 Formulation and corresponding properties of Comparative Example 1 liquid crystal composition

Comparative Example 1: The compound of formula I CLG-3-O1 in Example 2 was replaced with the conventional technology CCP-3-O1, the performance parameters hardly changed, but the obtained liquid crystal composition was placed in a 10ml glass bottle at -30°C After 100 hours of storage, crystals precipitated, which shows that the composition of the present scheme has good low-temperature miscibility.

no.

no.

no.

Claims (10)

A liquid crystal composition containing one or more compounds of formula I, one or more compounds of formula II, one or more compounds of formula III, and one or more compounds of formula IV,

I

II

Ⅲ

IV where R ₁ , R ₂ , R ₅ , R ₇ , and R ₈ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, and the number of carbon atoms is 2-10 alkenyl groups, fluorine-substituted alkenyl groups having 2-10 carbon atoms, alkenyloxy groups having 3-8 carbon atoms or fluorine-substituted alkenyl groups having 3-8 carbon atoms R ₃ and R ₄ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and a fluorine substitution Alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and alkenes having 3-8 carbon atoms Oxygen or fluorine substituted alkenyloxy group having 3-8 carbon atoms; R ₆ is cyclopropylene, cyclobutylene or cyclopentylene; Z ₁ and Z ₂ each independently represent a single bond,- CH ₂ CH ₂ -or -CH ₂ O-;

,

Each independently represents 1,4-phenylene or 1,4-cyclohexylene, m and n each independently represent 0, 1 or 2; and m+n≥1, X represents O or S. The liquid crystal composition according to Item 1 of the patent application scope, wherein the one or more compounds represented by Formula II are selected from the group consisting of compounds represented by Formula II1-II9;

II1

II2

II3

II4

II5

II6

II7

II8

II9 wherein R ₃ and R ₄ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or fluorine Substituted alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and chains having 3-8 carbon atoms Alkenyloxy or fluorine substituted alkenyloxy having 3-8 carbon atoms. The liquid crystal composition according to Item 1 or Item 2 of the patent application scope, wherein the one or more compounds represented by Formula III are selected from the group consisting of compounds represented by Formula III1-III6,

Ⅲ1

Ⅲ2

Ⅲ3

Ⅲ4

Ⅲ5

Ⅲ6 where R ₅ represents an alkyl group having 1-10 carbon atoms, a fluorine-substituted alkyl group having 1-10 carbon atoms, a carbon atom having 2-10 alkenyl groups, and a fluorine-substituted carbon atom having 2-10 alkenyl groups, alkenyloxy groups having 3-8 carbon atoms or fluorine-substituted alkenyloxy groups having 3-8 carbon atoms. The liquid crystal composition according to any one of claims 1 to 3, wherein the one or more compounds represented by formula IV are selected from the group consisting of compounds represented by formulas IV1-IV11,

Ⅳ1

Ⅳ2

Ⅳ3

Ⅳ4

Ⅳ5

Ⅳ6

Ⅳ7

Ⅳ8

Ⅳ9

Ⅳ10

Ⅳ11. The liquid crystal composition according to any one of items 1 to 4 of the patent application scope, which contains one or more compounds of formula I with a total weight percentage of 0.1 to 10% and one or more compounds of formula II The weight percentage content is 10 to 60%, the total weight percentage content of one or more compounds represented by formula III is 1 to 15%, and the total weight percentage content of one or more compounds represented by formula IV is 10 to 60%. The liquid crystal composition according to any one of claims 1 to 5, further comprising one or more compounds represented by formula V:

V where R ₉ and R ₁₀ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or fluorine Substituted alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and chains having 3-8 carbon atoms Alkenyloxy or fluorine substituted alkenyloxy having 3-8 carbon atoms, and any one or more of the groups represented by R ₉ and R ₁₀ that are not connected -CH ₂ -are each independently optionally sub Cyclopropyl substitution;

,

Each independently represents 1,4-phenylene, fluoro 1,4-phenylene, or 1,4-cyclohexylene, and

,

It is not 1,4-cyclohexylene at the same time; p represents 0 or 1. The liquid crystal composition according to Item 6 of the patent application scope, wherein the one or more compounds represented by Formula V are one or more of the compounds represented by Formula V1-V8,

Ⅴ1

Ⅴ2

Ⅴ3

Ⅴ4

Ⅴ5

Ⅴ6

Ⅴ7

Ⅴ8 wherein R ₉ and R ₁₀ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or fluorine Substituted alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and chains having 3-8 carbon atoms Alkenyloxy or fluorine-substituted alkenyloxy having 3-8 carbon atoms, and any one or more unconnected -CH ₂ in the groups represented by R ₉ and R ₁₀ are each independently optionally ring-substituted Propyl substitution. The liquid crystal composition according to any one of items 1 to 7 of the patent application scope, which further comprises one or more compounds represented by formula VI:

Ⅵ where R ₁₁ and R ₁₂ each independently represent an alkyl group having 1 to 10 carbon atoms, a fluorine-substituted alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, or fluorine Substituted alkoxy groups having 1-10 carbon atoms, alkenyl groups having 2-10 carbon atoms, fluorine-substituted alkenyl groups having 2-10 carbon atoms, and chains having 3-8 carbon atoms Alkenyloxy or fluorine substituted alkenyloxy having 3-8 carbon atoms;

Represents 1,4-phenylene, 1,4-cyclohexylene or 1,4-cyclohexenylene; F ₁ , F ₂ or F ₃ each independently represent H or F, and F ₂ and F _{3 are} different Time is F. The liquid crystal composition according to any one of items 1 to 8 of the patent application scope, which further comprises one or more compounds represented by formula VII:

Ⅶ where R ₁₃ and R ₁₄ each independently represent W-Sp-, H, Cl, F or an alkyl group having 1-12 carbon atoms; one or two of the alkyl groups having 1-12 carbon atoms Non-adjacent -CH ₂ -groups may each be independently substituted with -O-, -CH ₂ =CH ₂ -, -CO-, -OCO-, or -COO-, wherein at least one of R ₁₃ and R ₁₄ Means W-Sp-;

,

Each independently represents a phenylene group, a phenylene group or indane substituted with W-Sp-, Cl, F, an alkyl group having 1 to 12 carbon atoms and/or an alkoxy group having 1 to 12 carbon atoms Group, wherein one or two non-adjacent -CH ₂ -groups in the alkyl group having 1 to 12 carbon atoms and the alkoxy group having 1 to 12 carbon atoms may each be independently -O- , -CH ₂ =CH ₂ -, -CO-, -OCO- or -COO-, and

With R ₁₃ in

Bonding anywhere

With R ₁₄ in

Bonded at any position; q represents 0, 1 or 2; W represents methacrylate group or acrylate group; Z ₃ and Sp each independently represent a single bond, -COO-, -CH ₂ O- or -CH ₂ CH ₂ -. A liquid crystal display element or liquid crystal display comprising the liquid crystal composition as described in any one of claims 1 to 9, the display element or display is an active matrix display element or a display or a passive matrix display element or monitor.