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 JP7424318
Kind Code:
B2
Abstract:
The present invention provides: a liquid crystal alignment film that has excellent display reliability with less changes in a pretilt angle even after being driven for a long time, has high voltage holding characteristics, and is capable of reducing charge buildup; a liquid crystal display element comprising the same; and a liquid crystal alignment agent that provides the same. The present invention provides a liquid crystal alignment agent that comprises, as component (A), a polymer having a photo-alignment group represented by formula (pa-1) (in the formula, A is phenylene or the like, R1 is a single bond, oxygen atom, or the like, R2 is a divalent aromatic group or the like, R3 is a single bond, oxygen atom, or the like, R4 is a linear or branched alkyl group having 1 to 40 carbon atoms or a monovalent organic group having 3 to 40 carbon atoms and including an alicyclic group, D is an oxygen atom, sulfur atom, or -NRd-, a is an integer of 0 to 3, and * is a binding site) and a thermal crosslinking group A, and as component (B), a polymer selected from polyimide that has a radical generating group that generates a radical due to irradiation with light and a precursor thereof, and a solvent.
Inventors:
Yuta Iizuka
Kohei Goto
Kohei Goto
Application Number:
JP2020565711A
Publication Date:
January 30, 2024
Filing Date:
December 26, 2019
Export Citation:
Assignee:
Nissan Chemical Co., Ltd.
International Classes:
G02F1/1337; C08F220/10
Domestic Patent References:
| JP2017161602A |
Foreign References:
| WO2017110977A1 |
Attorney, Agent or Firm:
Takao Yoshizawa
Akio Konno
Minoru Inami
Takeyasu Ito
Yoshimasa Tamura
Akio Konno
Minoru Inami
Takeyasu Ito
Yoshimasa Tamura
Previous Patent: Communication device, communication method, and program
Next Patent: Communication device and communication method
Next Patent: Communication device and communication method