Diamine compound containing triazine group, polyamic acid synthesized from the diamine compound and LC alignment film prepared from the polyamic acid
申请人:Cheil Industries Inc.
公开号:US07635746B2
公开(公告)日:2009-12-22
Diamine compound containing specific triazine group, polyamic acid obtained by reacting the diamine compound and tetracarboxylic dianhydride, and liquid crystal alignment film obtained by coating and imidizing the polyamic acid. The liquid crystal alignment film has good heat-resistance, high transparency in visible light region and improved voltage holding ratio. Also, pretilt angle is easily controlled over broad range.
[EN] DIAMINE COMPOUND CONTAINING TRIAZINE GROUP, POLYAMIC ACID SYNTHESIZED FROM THE DIAMINE COMPOUND AND LC ALIGNMENT FILM PREPARED FROM THE POLYAMIC ACID<br/>[FR] GROUPE TRIAZINE CONTENANT UN COMPOSE DIAMINE, ACIDE POLYAMIQUE SYNTHETISE A PARTIR DE CE COMPOSE DIAMINE ET FILM D'ALIGNEMENT DE CRISTAUX LIQUIDES PREPARE A PARTIR DE CET ACIDE POLYAMIQUE
申请人:CHEIL IND INC
公开号:WO2004090017A1
公开(公告)日:2004-10-21
Diamine compound containing specific triazine group, polyamic acid obtained by reacting the diamine compound and tetracarboxylic dianhydride, and liquid crystal alignment film obtained by coating and imidizing the polyamic acid. The liquid crystal alignment film has good heat-resistance, high transparency in visible light region and improved voltage holding ratio. Also, pretilt angle is easily controlled over broad range.