Title:
LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/074570
Kind Code:
A1
Abstract:
Provided is a liquid crystal alignment agent capable of forming a liquid crystal alignment film that has little in-plane variations (non-uniformity) in the liquid crystal twist angle, and that demonstrates an excellent layer separation property even when two or more types of polymers are used. Also provided is a liquid crystal display element comprising said liquid crystal alignment film. The liquid crystal alignment agent is characterized by containing at least one polymer (P) selected from the group consisting of a polyimide precursor obtained by using a diamine component that includes a diamine (0) represented by formula (DA), and a polyimide that is an imidization product of said polyimide precursor. (The definitions of symbols are as stated in the specification.)
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Inventors:
GUNJI RIE (JP)
HARADA YOSHIKAZU (JP)
YAMAMOTO YUSUKE (JP)
ASHIZAWA RYOICHI (JP)
KUNIMI NAHO (JP)
HARADA YOSHIKAZU (JP)
YAMAMOTO YUSUKE (JP)
ASHIZAWA RYOICHI (JP)
KUNIMI NAHO (JP)
Application Number:
PCT/JP2022/039298
Publication Date:
May 04, 2023
Filing Date:
October 21, 2022
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2019022215A1 | 2019-01-31 | |||
| WO2021161989A1 | 2021-08-19 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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