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:
Apr. 04, 2023
Filed:
Aug. 22, 2019
Applicant:
Dongwoo Fine-chem Co., Ltd., Jeollabuk-do, KR;
Inventors:
Geo San Lim, Seoul, KR;
Seung Hee Kim, Seoul, KR;
Assignee:
DONGWOO FINE-CHEM CO., LTD., Jeollabuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 4/00 (2006.01); G02B 1/14 (2015.01); C08J 7/04 (2020.01); C09D 135/02 (2006.01); C08J 7/046 (2020.01);
U.S. Cl.
CPC ...
C09D 4/00 (2013.01); C08J 7/042 (2013.01); C08J 7/046 (2020.01); C09D 135/02 (2013.01); G02B 1/14 (2015.01); C08J 2367/02 (2013.01); C08J 2379/08 (2013.01); C08J 2435/02 (2013.01);
Abstract
A flexible window stack structure includes a substrate, a first hard coating layer formed on a surface of the substrate and a second hard coating layer formed on an opposite surface of the substrate. The first hard coating layer has a curing contraction greater than that of the second hard coating layer, and the second hard coating layer is disposed at an elongated side when the window stack structure is folded. Cracks may be prevented by a curl property of the first hard coating layer when being bent.