# US 12,006,462 B2 · Liquid crystal composition, liquid crystal display element and liquid crystal display

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- Number: US 12,006,462 B2
- Document ID: US12006462B2
- Status: Granted
- Kind: B2
- Application number: 17/997,717
- Filed: 2020-08-25
- Published: 2023-09-28
- Granted: 2024-06-11
- Earliest claimed: 2020-06-16
- Assignees: Shijiazhuang Chengzhi Yonghua Display Material Co., Ltd.
- Applicants: Shijiazhuang Chengzhi Yonghua Display Material Co., Itd.
- Inventors: Sumin Kang; Zhian Liang; Kui Wang; Guoliang Yun; Wei Zhang
- Web page: https://patentgrep.com/patent/US12006462B2

## CPC

- C09K 19/3059: {in which at least two rings are linked by a carbon chain containing carbon to carbon triple bonds}
- C09K 19/3491: {having sulfur as hetero atom}
- C09K 19/3001: {Cyclohexane rings}
- C09K 19/3098: {Unsaturated non-aromatic rings, e.g. cyclohexene rings}
- C09K 19/3405: {the heterocyclic ring being a five-membered ring}
- G02F 1/13: based on liquid crystals, e.g. single liquid crystal display cells
- G02F 1/1333: Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence)
- C09K 19/3066: {in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers}
- C09K 2019/122: {Ph-Ph}
- C09K 2019/123: {Ph-Ph-Ph}
- C09K 2019/3004: {Cy-Cy}
- C09K 2019/301: {Cy-Cy-Ph}
- C09K 2019/3016: {Cy-Ph-Ph}
- C09K 2019/3027: {Compounds comprising 1,4-cyclohexylene and 2,3-difluoro-1,4-phenylene}
- C09K 2019/3063: {Cy-Ph-C≡C-Ph}
- C09K 2019/3408: {Five-membered ring with oxygen(s) in fused, bridged or spiro ring systems}
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

The present invention belongs to the technical field of liquid crystal materials, and in particular relates to a liquid crystal composition and a liquid crystal display element or liquid crystal display containing the liquid crystal composition. The present invention discloses a liquid crystal composition, comprising one or more compounds represented by Formula I, one or more compounds represented by Formula II, and one or more compounds represented by Formula III. The liquid crystal composition of the present invention has a large optical anisotropy and a small ratio of γ1/K11, and can be used for developing a liquid crystal display element or liquid crystal display with a low cell thickness and a fast response.

## Claims

### Claim 1

A liquid crystal composition, comprising one or more compounds represented by Formula I, one or more compounds represented by Formula II, one or more compounds represented by Formula III, one or more compounds represented by Formula IV, one or more compounds represented by Formula V, one or more compounds represented by Formula VI, and a compound represented by Formula VII-2 or VII-4:
wherein
R1, R2, R3, R4, R5 and R6 each independently represent an alkyl with a carbon atom number of 1-10, a fluoro-substituted alkyl with a carbon atom number of 1-10, an alkoxy with a carbon atom number of 1-10, a fluoro-substituted alkoxy with a carbon atom number of 1-10, an alkenyl with a carbon atom number of 2-10, a fluoro-substituted alkenyl with a carbon atom number of 2-10, an alkenoxy with a carbon atom number of 3-8, or a fluoro-substituted alkenoxy with a carbon atom number of 3-8;
R7 and R8 each independently represent an alkyl with a carbon atom number of 1-10, a fluoro-substituted alkyl with a carbon atom number of 1-10, an alkoxy with a carbon atom number of 1-10, a fluoro-substituted alkoxy with a carbon atom number of 1-10, an alkenyl with a carbon atom number of 2-10, a fluoro-substituted alkenyl with a carbon atom number of 2-10, an alkenoxy with a carbon atom number of 3-8, or a fluoro-substituted alkenoxy with a carbon atom number of 3-8;
each independently represent 1,4-phenylene, 1,4-cyclohexylene or 1,4-cyclohexenylene;
R9 and R10 each independently represent an alkyl with a carbon atom number of 1-10, a fluoro-substituted alkyl with a carbon atom number of 1-10, an alkoxy with a carbon atom number of 1-10, a fluoro-substituted alkoxy with a carbon atom number of 1-10, an alkenyl with a carbon atom number of 2-10, a fluoro-substituted alkenyl with a carbon atom number of 2-10, an alkenoxy with a carbon atom number of 3-8, or a fluoro-substituted alkenoxy with a carbon atom number of 3-8;
represents 1,4-phenylene, 1,4-cyclohexylene or 1,4-cyclohexenylene;
Z1 represents a single bond or —CH2O—;
m represents 0 or 1; and when m represents 0, Z1 represents —CH2O—;
R11 and R12 each independently represent an alkyl with a carbon atom number of 1-10, a fluoro-substituted alkyl with a carbon atom number of 1-10, an alkoxy with a carbon atom number of 1-10, a fluoro-substituted alkoxy with a carbon atom number of 1-10, an alkenyl with a carbon atom number of 2-10, a fluoro-substituted alkenyl with a carbon atom number of 2-10, an alkenoxy with a carbon atom number of 3-8, or a fluoro-substituted alkenoxy with a carbon atom number of 3-8;
each independently represent 1,4-phenylene, 1,4-cyclohexylene or 1,4-cyclohexenylene;
R131 and R141 each independently represent an alkyl with a carbon atom number of 1-10; and
a mass content of the compound represented by Formula II is 3-10%; a mass percentage content of the compound represented by Formula III is 7-15%; a mass content of the compound represented by Formula V is 13-33%; a mass content of the compound shown in the Formula VI is 5-10%; a mass content of the compound shown in the Formula VII-2 or VII-4 is 5-10%.

### Claim 2 (depends on 1)

The liquid crystal composition according to claim 1, wherein the compound represented by Formula V is selected from the group consisting of compounds represented by Formulas V-1 to V-5:

### Claim 3 (depends on 1)

The liquid crystal composition according to claim 1, wherein the compound represented by Formula VI is selected from the group consisting of compounds represented by Formulas VI-1 to VI-3:

### Claim 4 (depends on 1)

A liquid crystal display element comprising the liquid crystal composition according to claim 1, wherein the liquid crystal display element is an active matrix addressing liquid crystal display element, or a passive matrix addressing liquid crystal display element.

### Claim 5 (depends on 1)

A liquid crystal display comprising the liquid crystal composition according to claim 1, wherein the liquid crystal display is an active matrix addressing liquid crystal display, or a passive matrix addressing liquid crystal display.