Title:
液晶配向剤、液晶配向膜、及び液晶表示素子
Document Type and Number:
Japanese Patent JP7311047
Kind Code:
B2
Abstract:
Provided is a liquid crystal alignment film that can quickly eliminate after images and can provide a high display quality in a high definition liquid crystal display. This liquid crystal alignment agent contains at least one polymer (A) selected from the group consisting of polyimide precursors obtained by using a diamine component including a diamine represented by formula (1a) and a diamine represented by formula (1b) and a tetracarboxylic acid derivative component including an aromatic tetracarboxylic dianhydride or a derivative thereof, and polyimides which are imidation products of said polyimide precursors. The liquid crystal alignment agent is characterized in that the diamine component includes 5-95 mol% of the diamine represented by formula (1a) with respect to 1 mol of the used diamine component. [Chem. 1] (Any hydrogen atom on the benzene rings may be substituted with a monovalent substituent.) [Chem. 2] (Y is as defined in the description.)
Inventors:
Tatsuya Yuki
Toshiyuki Hyugano
Ippei Fukuda
Toshiyuki Hyugano
Ippei Fukuda
Application Number:
JP2022536312A
Publication Date:
July 19, 2023
Filing Date:
July 08, 2021
Export Citation:
Assignee:
Nissan Chemical Co., Ltd.
International Classes:
G02F1/1337; C08G73/10
Foreign References:
| WO2018051956A1 | ||||
| WO2018051923A1 | ||||
| WO2017217413A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation T.S. Partners
Toshiharu Ogawa
Kim Wen
Ken Higino
Daiichiro Yokoi
Toshiharu Ogawa
Kim Wen
Ken Higino
Daiichiro Yokoi
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