Title:
METHOD FOR PRODUCING LIQUID CRYSTAL ALIGNMENT FILM, LIQUID CRYSTAL ALIGNMENT FILM, AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
WIPO Patent Application WO/2013/002345
Kind Code:
A1
Abstract:
Provided are: a method for producing a liquid crystal alignment film that enables highly efficient photo-alignment; a liquid crystal alignment film which is obtained by the method; and a liquid crystal display element.
A thin film that contains a polyimide precursor having a photoreactive group is formed on a substrate and the thin film surface is irradiated with polarized ultraviolet light, while being heated, so that a liquid crystal alignment film that is composed of a polymer containing the polyimide precursor is produced on the substrate.
Inventors:
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
GOTO KOHEI (JP)
MANDAI ATSUHIKO (JP)
MINAMI SATOSHI (JP)
NAGI TATSUYA (JP)
KONDO MIZUHO (JP)
GOTO KOHEI (JP)
MANDAI ATSUHIKO (JP)
MINAMI SATOSHI (JP)
NAGI TATSUYA (JP)
Application Number:
PCT/JP2012/066591
Publication Date:
January 03, 2013
Filing Date:
June 28, 2012
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
HYOGO PREFECTURE (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
GOTO KOHEI (JP)
MANDAI ATSUHIKO (JP)
MINAMI SATOSHI (JP)
NAGI TATSUYA (JP)
HYOGO PREFECTURE (JP)
KAWATSUKI NOBUHIRO (JP)
KONDO MIZUHO (JP)
GOTO KOHEI (JP)
MANDAI ATSUHIKO (JP)
MINAMI SATOSHI (JP)
NAGI TATSUYA (JP)
International Classes:
G02F1/1337
Domestic Patent References:
| WO2006068197A1 | 2006-06-29 |
Foreign References:
| JP2002082336A | 2002-03-22 | |||
| JP2006350347A | 2006-12-28 | |||
| JP2007256484A | 2007-10-04 | |||
| JPH1115001A | 1999-01-22 |
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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Claims: