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Title:
LIQUID CRYSTAL ALIGNING AGENT, DIAMINE COMPOUND AND POLYAMIDE ACID
Document Type and Number:
WIPO Patent Application WO/2017/185430
Kind Code:
A1
Abstract:
A liquid crystal aligning agent, comprising a polyamide acid and a polyimide polymer obtained after high-temperature curing of the polyamide acid. The polyamide acid is obtained by reacting a tetracarboxylic dianhydride and a diamine. The diamine comprises a compound represented by formula (1) or a compound represented by formula (2), [Formula 1], [Formula 2]. The liquid crystal aligning agent is suitable for use as an optical alignment liquid crystal aligning agent for LCD applications of IPS-TFTs, TN-TFTs and VA type TFTs, and has high reliability, excellent aligning effects and high aligning stability, and good persistence of visibility. AA%%%Formula (1) BB%%%Formula (2)

Inventors:
WANG SHENGLIN (CN)
LI HOUMING (CN)
BAO NENGJIN (CN)
Application Number:
PCT/CN2016/082438
Publication Date:
November 02, 2017
Filing Date:
May 18, 2016
Export Citation:
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Assignee:
SHENZHEN DALTON ELECTRONIC MAT CO LTD (CN)
International Classes:
C09K19/56; C07D207/452; C08G73/10
Foreign References:
JP2008287082A2008-11-27
KR101208437B12012-12-05
CN102010719A2011-04-13
CN101246283A2008-08-20
CN101256314A2008-09-03
CN101611031A2009-12-23
CN101921598A2010-12-22
CN101256316A2008-09-03
CN104193992A2014-12-10
Attorney, Agent or Firm:
SHENZHEN JAHONGBO INTELLECTUAL PROPERTY AGENT OFFICE (CN)
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