Title:
LIQUID CRYSTAL DISPLAY ELEMENT EQUIPPED WITH LIQUID CRYSTAL PANEL HAVING CURVED SURFACE AND LIQUID CRYSTAL ALIGNING AGENT FOR SAME
Document Type and Number:
WIPO Patent Application WO/2018/025872
Kind Code:
A1
Abstract:
Provided is a liquid crystal display device equipped with a liquid crystal panel which has a curved surface and is still free from a bright dot even if a physical friction such as rubbing by a spacer has occurred.
A curved liquid crystal display element which is provided with a liquid crystal alignment film that contains a polymer having a structure represented by formula (1).
(In the formula, Y1 represents a single bond, -(CH2)a- (wherein a represents an integer of 1-15), -O-, -CH2O-, -COO- or OCO-; Y2 represents a single bond or (CH2)b- (wherein b represents an integer of 1-15); Y3 represents a single bond, -(CH2)c- (wherein c represents an integer of 1-15), -O-, -CH2O-, -COO- or OCO-; Y4 represents a cyclic group selected from the group consisting of a benzene ring, a cyclohexane ring and a heterocyclic ring (an arbitrary hydrogen atom on these cyclic groups may be substituted by an alkyl group having 1-3 carbon atoms, an alkoxyl group having 1-3 carbon atoms, a fluorine-containing alkyl group having 1-3 carbon atoms, a fluorine-containing alkoxyl group having 1-3 carbon atoms, or a fluorine atom), or a divalent organic group selected from among organic groups having a steroid skeleton and 12-25 carbon atoms; Y5 represents a divalent cyclic group selected from the group consisting of a benzene ring, a cyclohexane ring and a heterocyclic ring (an arbitrary hydrogen atom on these cyclic groups may be substituted by an alkyl group having 1-3 carbon atoms, an alkoxyl group having 1-3 carbon atoms, a fluorine-containing alkyl group having 1-3 carbon atoms, a fluorine-containing alkoxyl group having 1-3 carbon atoms, or a fluorine atom); n represents an integer of 2-4 in cases where Y4 is a cyclic group selected from the group consisting of a benzene ring, a cyclohexane ring and a heterocyclic ring, or represents an integer of 0-4 in cases where Y4 is a divalent organic group selected from among organic groups having a steroid skeleton and 12-25 carbon atoms, and in cases where n is 2 or more, each of the plurality of Y5 moieties independently represents one of the groups defined above; and Y6 represents an alkyl group having 1-18 carbon atoms, a fluorine-containing alkyl group having 1-18 carbon atoms, an alkoxyl group having 1-18 carbon atoms or a fluorine-containing alkoxyl group having 1-18 carbon atoms.)
Inventors:
OTA SHOTARO (JP)
ASHIZAWA RYOICHI (JP)
SUGIYAMA SATOKO (JP)
MIKI NORITOSHI (JP)
ASHIZAWA RYOICHI (JP)
SUGIYAMA SATOKO (JP)
MIKI NORITOSHI (JP)
Application Number:
PCT/JP2017/027924
Publication Date:
February 08, 2018
Filing Date:
August 01, 2017
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
G02F1/1337; C08G73/10; G02F1/1333
Foreign References:
| JP2014112197A | 2014-06-19 | |||
| US20170139280A1 | 2017-05-18 | |||
| US20170090250A1 | 2017-03-30 |
Attorney, Agent or Firm:
SENMYO Kenji et al. (JP)
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