The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 2021
Filed:
Dec. 04, 2019
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2006.01); C08G 73/10 (2006.01); C08G 73/16 (2006.01); C09K 19/56 (2006.01); C09K 19/30 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133723 (2013.01); C08G 73/1042 (2013.01); C08G 73/16 (2013.01); C09K 19/3068 (2013.01); C09K 19/56 (2013.01); G02F 1/133788 (2013.01); G02F 1/133397 (2021.01);
Abstract
A photo alignment including a copolymer of a diamine and a dianhydride, wherein the copolymer includes a repeating unit including a first group derived from the diamine and a second group derived from the dianhydride, and wherein any one of the first group and the second group includes a photoreactive group and the other one of the first group and the second group includes at least one selected from a tert-butyl group, a tert-butoxy group, a tert-butyloxycarbonyl group, and a di-tert-butyloxycarbonyl group.