Polymerizable compound and application thereof

Patent metadata

Field	Value
Publication number	US-2020339883-A1
Application number	US-201816499969-A
Country	US
Kind code	A1
Filing date	Apr 20, 2018
Priority date	Apr 21, 2017
Publication date	Oct 29, 2020
Grant date	—

Abstract

The present invention provides a polymerizable compound with a structure of general formula I, which exhibits none or few of the problems existing in the prior art. A polymerizable liquid crystal composition comprising the polymerizable compound has good stability and higher reliability, and is embodied by having a smaller pretilt angle change and higher voltage holding ratio. Also, there is little or no image sticking effect in a liquid crystal display device comprising the polymerizable liquid crystal composition. The present invention also provides a method of synthesizing a polymerizable compound with a structure of general formula I. The present invention further provides a polymerizable liquid crystal composition comprising the polymerizable compound and a liquid crystal display device comprising the polymerizable liquid crystal composition.

First claim

1 . A polymerizable compound having a structure of general formula I:

in which,
X 1 and X 2 are same or different and each independently represents —H or —CH 3 ;
L 1 -L 12 are same or different and each independently represents —H, —F or —CH 3 ;
Z represents —CH 2 O—, —OCH 2 —, —CH 2 CH 2 —, —COO—, —OCO—, —CF 2 O— or —OCF 2 —;
the ring A represents

wherein one or more —CH 2 — in ring

can be replaced by —O— or —N—; one or more —H on ring

can be substituted by —F or —CH 3 ;
 n represents 0 or 1.

2 . The polymerizable compound according to claim 1 , wherein the compound of general formula I is one or more compounds selected from compounds of general formula I-1 to I-3:

in which,
X 1 and X 2 are same or different and each independently represents —H or —CH 3 ;
L 1 -L 16 are same or different and each independently represents —H, —F or —CH 3 ;
Z represents —CH 2 O—, —OCH 2 —, —CH 2 CH 2 —, —COO—, —OCO—, —CF 2 O— or —OCF 2 —.

3 . The polymerizable compound according to claim 2 , wherein at least one of L 1 -L 16 is —F or —CH 3 .

4 . The polymerizable compound according to claim 2 , wherein Z represents —CH 2 O—, —OCH 2 —, —CH 2 CH 2 —, —COO— or —OCO—.

5 . The polymerizable compound according to claim 2 , wherein at least one of L 5 -L 8 and/or L 13 -L 16 in the general formula I-1 is —F or —CH 3 .

6 . The polymerizable compound according to claim 2 , wherein at least two of L 1 -L 16 in the general formulas I-1 and I-2 are —F or —CH 3 .

7 . The polymerizable compound according to claim 4 , wherein Z represents —CH 2 O—, —OCH 2 — or —CH 2 CH 2 —.

8 . The polymerizable compound according to claim 2 , wherein the compound of general formula I-1 is one or more compounds selected from the following compounds:

in which,
X 1 and X 2 are same or different and each independently represents —H or —CH 3 ;
Z represents —CH 2 O—, —OCH 2 — or —CH 2 CH 2 —.

9 . The polymerizable compound according to claim 2 , wherein the compound of general formula I-2 is one or more compounds selected form the following compounds:

in which,
X 1 and X 2 are same or different and each independently represents —H or —CH 3 .

10 . The polymerizable compound according to claim 7 , wherein the compound of general formula I3 is one or more compounds selected form the following compounds:

in which,
X 1 and X 2 are same or different and each independently represents —H or —CH 3 ;
Z represents —CH 2 O—, —OCH 2 — or —CH 2 CH 2 —.

11 . A polymerizable liquid crystal composition comprising the polymerizable compound of claim 1 .

12 . A liquid crystal display device comprising the polymerizable liquid crystal composition of claim 11 .

Assignees

• Jiangsu Hecheng Display Tech

Inventors

• Han Wenming
• Ma Wenyang
• Xu Shuang
• Xu Haibin

Classifications

• C09K19/14 Primary

  linked by a carbon chain · CPC title

• C09K19/3809 Primary

  Polyesters; Polyester derivatives, e.g. polyamides · CPC title

• C09K19/20

  linked by a chain containing carbon and oxygen atoms as chain links, e.g. esters {or ethers} · CPC title

• C09K2019/0448

  the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate · CPC title

• C09K19/3852

  Poly(meth)acrylate derivatives · CPC title