Title:
LIQUID CRYSTAL ALIGNING AGENT AND LIQUID CRYSTAL DISPLAY ELEMENT USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/034792
Kind Code:
A1
Abstract:
Provided are: a liquid crystal aligning agent which is capable of forming a liquid crystal alignment film that is able to improve the response speed after UV irradiation without being decreased in vertical alignment ability; and a liquid crystal display element which comprises a liquid crystal alignment film obtained from the liquid crystal aligning agent and is processed similarly to PSA type liquid crystal display elements using liquid crystals to which a liquid crystal polymerizable compound is not added, said liquid crystal display element having improved response speed after UV irradiation.
A liquid crystal aligning agent which contains: at least one kind of a polymer (component (A)) that is selected from the group consisting of polyamic acids and polyimides; and a polysiloxane (component (B)) that is obtained by polycondensing alkoxysilanes including an alkoxysilane represented by formula (1) and an alkoxysilane represented by formula (3).
R1Si(OR2)3 (1)
(In formula (1), R1 represents a group represented by formula (2); and R2 represents an alkyl group having 1-5 carbon atoms.)
(In formula (2), Y1 represents a single bond or the like; Y2 represents a single bond or the like; Y3 represents a single bond or the like; Y4 represents a divalent cyclic group such as a benzene ring, or the like; Y5 represents a divalent cyclic group such as a benzene ring, or the like; Y6 represents an alkyl group having 1-18 carbon atoms, or the like; and n represents a number of 0-4.)
R3Si(OR4)3 (3)
(In formula (3), R3 represents an acryl group, an acryloxy group, a methacryl group, a methacryloxy group or an alkyl group having 1-30 carbon atoms and substituted by a styryl group; and R4 represents an alkyl group having 1-5 carbon atoms.)
Inventors:
HASHIMOTO JUN (JP)
SATO NATSUKI (JP)
GOTO KOHEI (JP)
HIRAGA KOJI (JP)
MOTOYAMA KENICHI (JP)
SATO NATSUKI (JP)
GOTO KOHEI (JP)
HIRAGA KOJI (JP)
MOTOYAMA KENICHI (JP)
Application Number:
PCT/JP2013/073179
Publication Date:
March 06, 2014
Filing Date:
August 29, 2013
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
G02F1/1337; C08G77/20; C08L77/06; C08L79/08; C08L83/07
Domestic Patent References:
| WO2012165354A1 | 2012-12-06 |
Foreign References:
| JP2010217866A | 2010-09-30 |
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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