Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/224114
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: as a component (A), a compound that has a thermally crosslinkable group and a photo-alignment group represented by formula (pa-1), wherein the thermally crosslinkable group is capable of forming a covalent bond by being reacted with a carboxy group; and as a component (B), a polyamic acid and a solvent. (In formula (pa-1), A represents a phenylene group or the like; R1 represents -COO- or -OCO-; R2 represents a cyclohexane-1,4-diyl group; R3 represents a cyclohexane-1,4-diyl group; R4 represents a linear or branched alkyl group having 1 to 40 carbon atoms, and some or all of the hydrogen atoms in this alkyl group may be substituted by fluorine atoms; D represents an oxygen atom, a sulfur atom or -NRd-; a represents an integer of 0 to 3; and * denotes a bonding position.)
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Inventors:
IIZUKA YUTA (JP)
MORIUCHI MASATO (JP)
MORIUCHI MASATO (JP)
Application Number:
PCT/JP2023/018712
Publication Date:
November 23, 2023
Filing Date:
May 19, 2023
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2015020083A1 | 2015-02-12 |
Foreign References:
| JP2010256857A | 2010-11-11 | |||
| CN107043630A | 2017-08-15 |
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
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