US 10,414,981 B2 · Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application thereof

Abstract

The present invention relates to the technical field of liquid crystal displays, and particularly relates to a liquid crystal composition containing a 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and use thereof, wherein the liquid crystal composition of the present invention comprises, in percentages by weight, 1-50% of one or more compounds represented by general formula I and 10-70% of one or more compounds represented by general formula II, and may further comprise 0-30% of compounds represented by general formula III and/or 6-45% of one or more compounds represented by general formulas IV to XIII. The liquid crystal composition provided by the present invention has a low rotational viscosity and a large elastic constant, is presented as having a shorter response time, and can significantly improve the display effect of a liquid crystal display when applied to TN, IPS and FFS mode displays.

Claims9

Dependent claims

A liquid crystal composition comprising, in percentages by weight, 1-50% of one or more compounds represented by general formula I, 10-70% of one or more compounds represented by general formula II, and 2-30% by weight of one or more compounds represented by general formula III,

wherein R1, R2 and R3 each independently represent a C1-C12 linear alkyl group or a C1-C12 linear alkyl group having one or more non-adjacent CH2 substituted with O, S or CH═CH;
n each independently represents 0 or 1;
A1, A2 and A3 each independently represent the following structures:
and
A4 and A5 each independently represent a trans-1,4-cyclohexylene group or a 1,4-phenylene group;
wherein R4 and R5 each independently represent a C1-C12 linear alkyl group or a C1-C12 linear alkyl group having one or more non-adjacent CH2 substituted with O, S or CH═CH;
and
A6 each independently represents the following structures:

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/536,082Filed 23 Oct 2015

Priority

CN 2015 1 003058221 Jan 2015

Published

US 2017/0335189 A123 Nov 2017

Granted

17 Sep 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification23 codes

C09K 19/3066
Cyclohexane rings: in which the rings are linked by a chain containing carbon and oxygen atoms, e.g. esters or ethers
C09K 19/0403
Characterised by the chemical structure of the liquid crystal components , e.g. by a specific unit: the structure containing one or more specific,…
C09K 19/12
Containing at least two benzene rings: at least two benzene rings directly linked, e.g. biphenyls
C09K 19/126
At least two benzene rings directly linked, e.g. biphenyls: compounds containing at least one asymmetric carbon atom

Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application thereof

Life of this patent

Liquid crystal composition containing 2-methyl-3,4,5-trifluorobenzene liquid crystal compound and application thereof

Life of this patent

Abstract

Claims9