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Title:
LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/124166
Kind Code:
A1
Abstract:
The present invention provides a liquid crystal alignment film having good adhesion even after going through a low-temperature firing process, a liquid crystal alignment agent with which the liquid crystal alignment film is formed, and a liquid crystal display element provided with the liquid crystal alignment film. The present invention provides a liquid crystal alignment agent containing a component (A) and a component (B) described below, and a component (C) that is an organic solvent. Component (A): A polymer such as a polyimide, a polyamic acid, or a polyamic acid ester. Component (B): At least one compound selected from the group comprising the compound represented by formula [CL-1] and the compound represented by formula [CL-2] (in the formulas, r1 represents a hydrogen atom or a methyl group, r2 is a C2-20 straight-chain or branched-chain alkylene group or the like, the -CH2- in the structure may be replaced with -O-, r3 is a C2-20 k-valent aliphatic group or the like, Z indicates the bivalent group represented by formula (1a) (in the formula, r4 is a C1-20 straight-chain or branched-chain alkyl group or the like, and one of *1 and *2 bonds with a nitrogen atom, while the other bonds with r3) , k is a natural number between 2 and 9 inclusive, RCL1 is a hydrogen atom or a methyl group, RCL2 and RCL3 are each independently a hydrogen atom, a C1-20 straight-chain or branched-chain alkyl group, or a C1-20 straight-chain or branched-chain hydroxylalkyl group, and RCL4 is a hydroxyl group or a C1-20 straight-chain or branched-chain hydroxylalkyl group).

Inventors:
KATAYAMA, Masaaki (LTD. Materials Research Laboratories 488-6, Suzumi-cho, Funabashi-sh, Chiba 52, 〒2740052, JP)
HORI, Takao (LTD. Materials Research Laboratories 488-6, Suzumi-cho, Funabashi-sh, Chiba 52, 〒2740052, JP)
MIKI, Noritoshi (LTD. Materials Research Laboratories 488-6, Suzumi-cho, Funabashi-sh, Chiba 52, 〒2740052, JP)
GOTO, Kohei (LTD. Materials Research Laboratories 488-6, Suzumi-cho, Funabashi-sh, Chiba 52, 〒2740052, JP)
Application Number:
JP2017/046853
Publication Date:
July 05, 2018
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
NISSAN CHEMICAL INDUSTRIES, LTD. (7-1 Kanda Nishiki-cho 3-chome, Chiyoda-ku Tokyo, 54, 〒1010054, JP)
International Classes:
G02F1/1337; C08G73/10; C08K5/00; C08L101/00
Domestic Patent References:
WO2016143865A12016-09-15
WO2014073658A12014-05-15
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (Yurakucho Denki Building North Tower 8F, Section810 1-7-1 Yurakucho, Chiyoda-k, Tokyo 06, 〒1000006, JP)
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