Title:
NOVEL DIAMINE, POLYMER, LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/215280
Kind Code:
A1
Abstract:
The present invention provides a liquid crystal aligning agent which is capable of producing a liquid crystal alignment film by means of a photo-alignment method and which gives a liquid crystal alignment film having a good voltage retention rate even when a backlight is continuously illuminated for a long period of time. The present invention provides a liquid crystal aligning agent characterized by containing an organic solvent and at least one type of polymer (A) selected from the group consisting of: polymers obtained using a tetracarboxylic acid derivative component and a diamine component containing a diamine represented by formula (1); and imidized products of the polymers. (The definitions of the substituent groups are as stated in the description.)
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Inventors:
FUKUDA IPPEI (JP)
HARADA YOSHIKAZU (JP)
NAGI TATSUYA (KR)
HARADA YOSHIKAZU (JP)
NAGI TATSUYA (KR)
Application Number:
PCT/JP2021/015083
Publication Date:
October 28, 2021
Filing Date:
April 09, 2021
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2019039493A1 | 2019-02-28 |
Foreign References:
| JPH09185064A | 1997-07-15 | |||
| JPH08504197A | 1996-05-07 | |||
| KR20160095801A | 2016-08-12 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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