Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/054567
Kind Code:
A1
Abstract:
The present invention provides: a liquid crystal alignment film which has good liquid crystal alignment properties, while having excellent pretilt angle developability; a liquid crystal display element which is provided with this liquid crystal alignment film; and a liquid crystal aligning agent which enables the achievement of this liquid crystal alignment film. The present invention provides a liquid crystal aligning agent which contains: a component (A) that is composed of a compound having a photo-alignment group represented by formula (pa-1) and a thermally crosslinkable group that is capable of forming a covalent bond by being reacted with a carboxy group; and a component (B) that is composed of a polyamic acid and a solvent.
(In the formula, A represents a phenylene group or the like; R1 represents a single bond, an oxygen atom or the like; R2 represents a divalent aromatic group or the like; R3 represents a single bond, an oxygen atom or the like; R4 represents a linear or branched alkyl group having 1 to 40 carbon atoms or a monovalent organic group containing an alicyclic group and having 3 to 40 carbon atoms; D represents an oxygen atom, a sulfur atom or -NRd-; a represents an integer of 0 to 3; and * represents a bonding position.)
Inventors:
IIZUKA YUTA (JP)
MORIUCHI MASATO (JP)
MORIUCHI MASATO (JP)
Application Number:
PCT/JP2022/036392
Publication Date:
April 06, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10; C08K5/1515; C08K5/1525; C08K5/1565; C08L79/08
Foreign References:
| JP2010152363A | 2010-07-08 | |||
| JP2011133825A | 2011-07-07 | |||
| CN107043630A | 2017-08-15 |
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
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