Title:
LIQUID CRYSTAL ALIGNING AGENT AND LIQUID CRYSTAL DISPLAY ELEMENT
Document Type and Number:
Japanese Patent JP2009193054
Kind Code:
A
Abstract:
To provide a liquid crystal aligning agent which brings about a liquid crystal alignment layer having excellent liquid crystal aligning property, showing a high voltage holding ratio, and being excellent in after-image characteristics.
The liquid crystal aligning agent contains at least one selected from a group of a polyamic acid obtained by making a tetracarboxylic acid dianhydride and a diamine including a predetermined bisaminophenyl compound represented by a compound expressed by formula (1-1) react with each other, and its imidized polymer. The liquid crystal alignment layer formed of the liquid crystal aligning agent preferably has its surface free energy of 38 mN/m.
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Inventors:
KUMAGAI TSUTOMU
ABE TASUKU
HAYASHI EIJI
ABE TASUKU
HAYASHI EIJI
Application Number:
JP2008305907A
Publication Date:
August 27, 2009
Filing Date:
December 01, 2008
Export Citation:
Assignee:
JSR CORP
International Classes:
G02F1/1337; C08G73/10
Attorney, Agent or Firm:
Masataka Oshima
Hideo Katsumata
Taizo Shiraishi
Hideo Katsumata
Taizo Shiraishi