Title:
LIQUID CRYSTAL ALIGNMENT AGENT, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/044795
Kind Code:
A1
Abstract:
The present invention provides a substrate having a liquid crystal alignment film that is for an in-plane drive type liquid crystal display element, that is given the capability to control alignment with high efficiency, and that has excellent properties against burning caused by misalignment of liquid crystal or residual DC, and an in-plane drive type liquid crystal display element having the substrate. The present invention provides a liquid crystal alignment agent containing: (A-a) at least one polymer selected from polyamic acids obtained by using a diamine component and a tetracarboxylic acid dianhydride component including a tetracarboxylic acid dianhydride represented by formula (1) (in formula (1), i represents 0 or 1, and X represents a single bond, an ether bond, or the like), and imidized polymers of the polyamic acids; (A-b) at least one polymer selected from polyamic acids obtained by using a tetracarboxylic acid dianhydride component including an aliphatic tetracarboxylic acid dianhydride and a diamine component including a diamine represented by formula (2), and imidized polymers of the polyamic acids; and an organic solvent, wherein the weight ratio of (A-a) and (A-b) is represented as (A-a):(A-b) = 55:45 to 90:10.
Inventors:
ISHII HIDENORI (JP)
NAGI TATSUYA (JP)
NAGI TATSUYA (JP)
Application Number:
PCT/JP2018/031670
Publication Date:
March 07, 2019
Filing Date:
August 28, 2018
Export Citation:
Assignee:
NISSAN CHEMICAL CORP (JP)
International Classes:
G02F1/1337; C08G73/10; C08L79/08; G02F1/13
Domestic Patent References:
| WO2017196001A1 | 2017-11-16 | |||
| WO2017082579A1 | 2017-05-18 | |||
| WO2017057854A1 | 2017-04-06 |
Foreign References:
| JPH09185064A | 1997-07-15 |
Attorney, Agent or Firm:
YOSHIZAWA, Takao et al. (JP)
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