Title:
THERMOSETTING COMPOSITION HAVING PHOTO-ALIGNMENT PROPERTIES, ALIGNMENT LAYER, SUBSTRATE WITH ALIGNMENT LAYER, RETARDATION PLATE AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/122336
Kind Code:
A1
Abstract:
The main purpose of the present invention is to provide: a thermosetting composition having photo-alignment properties, which is able to be cured at low temperatures and is capable of forming an alignment layer that has excellent stability in terms of liquid crystal alignment ability; an alignment layer which uses this thermosetting composition; a substrate with an alignment layer; a retardation plate; and a device.
The present invention achieves the above-described purpose by providing a thermosetting composition having photo-alignment properties, which is characterized by containing a copolymer that has a photo-alignment constituent unit and a thermally crosslinkable constituent unit wherein thermally crosslinkable groups are bonded with each other via a linear alkylene group having 4-11 carbon atoms or a polyethylene glycol group having a repetition number of 2-5.
Inventors:
OKUYAMA KEN-ICHI (JP)
MOTOOKA MAMI (JP)
MOTOOKA MAMI (JP)
Application Number:
PCT/JP2015/053143
Publication Date:
August 20, 2015
Filing Date:
February 04, 2015
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G02F1/1337; C08F212/14; C08F220/28; G02B5/30; G02F1/13363
Foreign References:
| JP2012087286A | 2012-05-10 | |||
| JP2012033909A | 2012-02-16 | |||
| JP2000294504A | 2000-10-20 |
Other References:
NOBUHIRO KAWATSUKI ET AL.: "Photoinduced Molecular Orientation in Polymeric Films Based on Photo-Fries Rearrangement", EKISHO, vol. 17, no. 3, 25 July 2013 (2013-07-25), pages 152 - 156
Attorney, Agent or Firm:
YAMASHITA, Akihiko et al. (JP)
Akihiko Yamashita (JP)
Akihiko Yamashita (JP)
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