Title:
LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/047872
Kind Code:
A1
Abstract:
A liquid crystal alignment film that contains a polymer which has an aromatic heterocyclic ring, a primary amino group and a secondary amino group in the structure; and a liquid crystal aligning agent which is capable of forming this liquid crystal alignment film. It is preferable that the aromatic heterocyclic ring, the primary amino group and the secondary amino group are produced when the liquid crystal alignment film is fired; and the liquid crystal aligning agent specifically contains at least one polymer that is selected from among polyamic acids and polyimides that are imidized products of the polyamic acids, said polyamic acids being reaction products of a tetracarboxylic acid dianhydride and a diamine component that contains at least one diamine selected from among the component (A) and the component (B) described below and a diamine containing a skeleton of the component (C) described below. In the chemical formulae, the symbols are as defined in the description. Component (A): diamines having at least one structure selected from among a structure of formula (1-1) and a structure of formula (1-2) Component (B): diamines having a structure of formula (2) Component (C): diamines having at least one structure selected from among a structure of formula (a) and a structure of formula (b)
Inventors:
TOMOE KOJI (JP)
YAMAGIWA HIROKI (JP)
YAMAGIWA HIROKI (JP)
Application Number:
PCT/JP2017/032154
Publication Date:
March 15, 2018
Filing Date:
September 06, 2017
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
G02F1/1337; C08G73/10
Domestic Patent References:
| WO2016104514A1 | 2016-06-30 | |||
| WO2015072554A1 | 2015-05-21 |
Attorney, Agent or Firm:
KURIHARA, Hiroyuki et al. (JP)
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