Invention Grant
- Patent Title: Liquid crystal photoalignment agent and liquid crystal display including the same
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Application No.: US16556474Application Date: 2019-08-30
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Publication No.: US11156874B2Publication Date: 2021-10-26
- Inventor: Yeon Cu Kim , Ki Chul Shin , Soon Joon Rho
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Cantor Colburn LLP
- Priority: KR10-2018-0102626 20180830
- Main IPC: G02F1/1337
- IPC: G02F1/1337 ; C08L79/08 ; C08L33/10 ; C08G73/10

Abstract:
A liquid crystal photoalignment agent includes: a copolymer of diamine and dianhydride; and a compound Formula 1 below, wherein an amount of the compound of Formula 1 is less than about 10 weight %, based on a total weight of the liquid crystal photoalignment agent: R1 is a substituted or unsubstituted tetravalent organic group derived from an acid dianhydride, wherein the acid dianhydride is at least one of an aliphatic cyclic acid dianhydride or an aromatic acid dianhydride, R2 is a substituted or unsubstituted trivalent organic group derived from an aromatic diamine, at least one of R1 and R2 is substituted with CF3 or a silyl group, R3 is a residue of a compound including a substituted or unsubstituted aromatic group with a carbon number that is equal to or greater than 6, n is 1 to 5, and * represents a point of attachment.
Public/Granted literature
- US20200073182A1 LIQUID CRYSTAL PHOTOALIGNMENT AGENT AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME Public/Granted day:2020-03-05
Information query
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