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:
Oct. 17, 2017
Filed:
Aug. 26, 2013
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Seung-Yeon Hwang, Daejeon, KR;
Sung-Ho Chun, Daejeon, KR;
Dong-Woo Yoo, Daejeon, KR;
Hyeong-Bin Jang, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2006.01); C08G 73/10 (2006.01); C08G 73/12 (2006.01); B32B 27/28 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133723 (2013.01); B32B 27/281 (2013.01); B32B 2457/202 (2013.01); C08G 73/10 (2013.01); C08G 73/1007 (2013.01); C08G 73/1042 (2013.01); C08G 73/1085 (2013.01); C08G 73/12 (2013.01); C08J 2379/08 (2013.01); Y10T 428/1005 (2015.01); Y10T 428/1023 (2015.01);
Abstract
Disclosed therein are a photoalignment polyimide copolymer making it easier to form a liquid crystal alignment layer with excellences in alignment properties, thermal and structural stabilities, and adhesiveness to a substrate, and a liquid crystal alignment layer using the same. The photoalignment polyimide copolymer includes all the three types of repeating units each having a defined structure.