Invention Grant
- Patent Title: Photoalignment agent of liquid crystal, photoalignment film of liquid crystal including the same, and liquid crystal display including the same
- Patent Title (中): 液晶的光对准剂，含有它们的液晶的光电子对准膜以及包括其的液晶显示器
-
Application No.: US12676012Application Date: 2007-12-31
-
Publication No.: US08425799B2Publication Date: 2013-04-23
- Inventor: Tae-Hyoung Kwak , Dong-Seon Uh , Jae-Min Oh , Jae-Deuk Yang
- Applicant: Tae-Hyoung Kwak , Dong-Seon Uh , Jae-Min Oh , Jae-Deuk Yang
- Applicant Address: KR Gumi-si
- Assignee: Cheil Industries Inc.
- Current Assignee: Cheil Industries Inc.
- Current Assignee Address: KR Gumi-si
- Agency: Summa, Additon & Ashe, P.A.
- Priority: KR10-2007-0102030 20071010; KR10-2007-0106691 20071023
- International Application: PCT/KR2007/007037 WO 20071231
- International Announcement: WO2009/048201 WO 20090416
- Main IPC: C09K19/56
- IPC: C09K19/56 ; G02F1/1335
Abstract:
The present invention provides a liquid crystal photoalignment agent that includes a compound selected from the group consisting of a polyamic acid having a predetermined chemical formula, a polyimide polymer having a predetermined chemical formula, and a combination thereof, and a polyimide photopolymer. The liquid crystal photoalignment agent shows a long life-span, stably maintains a pretilt angle, and shows improved after-image characteristics, liquid crystal alignment properties, and chemical resistance.
Public/Granted literature
Information query
