Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2023/074569
Kind Code:
A1
Abstract:
The present invention provides: a liquid crystal aligning agent which enlarges the range of light irradiance that enables the achievement of a liquid crystal alignment film having a small twist angle variation (unevenness) of liquid crystals within the liquid crystal alignment film surface, and which forms a liquid crystal alignment film having a high water contact angle for the purpose of achieving a liquid crystal alignment film that prevents the occurrence of display unevenness caused by a cleaning step; a liquid crystal alignment film which is formed by this liquid crystal aligning agent; and a high-performance liquid crystal display element which is provided with this liquid crystal alignment film. The present invention provides: a liquid crystal aligning agent which is characterized by containing at least one polymer (P) that is selected from the group consisting of a polyimide precursor which is obtained using a diamine component that contains a novel diamine (0) represented by formula (DA), and a polyimide that is an imidized product of the polyimide precursor; a liquid crystal alignment film which is formed by this liquid crystal aligning agent; and a liquid crystal display element which is provided with this liquid crystal alignment film. (In the formula, the definition of each symbol is as described in the description.)
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Inventors:
GUNJI RIE (JP)
HARADA YOSHIKAZU (JP)
ASHIZAWA RYOICHI (JP)
HARADA YOSHIKAZU (JP)
ASHIZAWA RYOICHI (JP)
Application Number:
PCT/JP2022/039296
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:
| WO2019103044A1 | 2019-05-31 | |||
| WO2021200291A1 | 2021-10-07 |
Foreign References:
| CN101747656A | 2010-06-23 |
Attorney, Agent or Firm:
T.S. PARTNERS et al. (JP)
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