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:
Mar. 17, 2026
Filed:
Aug. 22, 2022
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ye Ji Hong, Daejeon, KR;
Mi Eun Kang, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/18 (2006.01); B32B 27/28 (2006.01); C08G 73/10 (2006.01); C08K 5/521 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B32B 27/281 (2013.01); C08G 73/1039 (2013.01); C08G 73/1042 (2013.01); C08G 73/1053 (2013.01); C08G 73/1071 (2013.01); C08K 5/521 (2013.01); B32B 2307/412 (2013.01); B32B 2307/734 (2013.01); B32B 2457/08 (2013.01); B32B 2457/20 (2013.01); C08J 2379/08 (2013.01);
Abstract
The present disclosure relates to a polyimide-based resin film wherein a thermal hysteresis gap at a temperature of 50° C. or more and 150° C. or less is 100 μm or more and 500 μm or less, and a substrate for display device, and an optical device using the same.