Title:
LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/056971
Kind Code:
A1
Abstract:
Provided are a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display element. The liquid crystal alignment agent at least comprises one of a polyamic acid solution and a polyimide solution. The polyamic acid solution is obtained by means of a polymerization reaction of diamine compound component A and dianhydride compound component B in a solvent, and the polyimide solution is obtained from the polyamic acid solution via a dehydration imidization treatment. The diamine component A at least comprises one of the diamine compounds represented by "formula 1". The obtained liquid crystal alignment agent has a better liquid crystal alignment capability, an excellent effect on image sticking, and the effect that decomposition products resulting from light alignment are easy to remove.
Inventors:
XIE WANLONG (CN)
WANG XIAORUI (CN)
LI SHIDONG (CN)
WANG MINGJIAO (CN)
REN HUICAI (CN)
SUN HU (CN)
WANG XIAORUI (CN)
LI SHIDONG (CN)
WANG MINGJIAO (CN)
REN HUICAI (CN)
SUN HU (CN)
Application Number:
PCT/CN2020/078129
Publication Date:
April 01, 2021
Filing Date:
March 06, 2020
Export Citation:
Assignee:
JIANGSU SUNERA TECH CO LTD (CN)
International Classes:
C09K19/56; C08G73/10; C08J5/18; C08L79/08; G02F1/1337
Foreign References:
| CN110734771A | 2020-01-31 | |||
| CN102947754B | 2016-06-01 | |||
| CN101925849A | 2010-12-22 | |||
| CN104220488B | 2017-05-31 | |||
| EP1111442A1 | 2001-06-27 |
Download PDF: