Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/080351
Kind Code:
A1
Abstract:
The present invention provides a liquid crystal alignment film and a liquid crystal aligning agent, each of which has good liquid crystal alignment properties and is capable of imparting a pretilt angle of 87° to 88°, while achieving high reliability. The present invention provides a liquid crystal aligning agent which comprises: (A) a low-molecular weight compound or a polymer which is represented by formula (pa-1) (wherein A represents a pyrimidine-2,5-diyl that may be substituted with a substituent, 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 monovalent organic group having 3 to 40 carbon atoms, including alkyl group or the like; D represents an oxygen atom, a sulfur atom or the like; a is an integer of 0 to 3; * denotes a bonding position; and X and Y each independently represent a hydrogen atom, a fluorine atom or the like) and has a photo-alignment group and a thermally crosslinkable group; (B) at least one polymer (P) which is selected from the group consisting of polyimide precursors obtained by using a diamine component including a diamine (0) that is represented by formula (DA) (wherein X1 and X2 each independently represent a bond group such as a single bond and an ether bond; n is an integer of 1 to 6; Cy represents a non-aromatic cyclic group having a 7-20 membered ring; and R11 and R12 each independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms) and polyimides which are imidization products of the polyimide precursors; and a solvent.
Inventors:
TOYODA MIKI (JP)
OHNO SHINYA (JP)
OHNO SHINYA (JP)
Application Number:
PCT/JP2023/037141
Publication Date:
April 18, 2024
Filing Date:
October 13, 2023
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2020138259A1 | 2020-07-02 | |||
| WO2020145175A1 | 2020-07-16 |
Foreign References:
| JPH10121049A | 1998-05-12 | |||
| KR20090131541A | 2009-12-29 |
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
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