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:
Jan. 24, 2023
Filed:
Jul. 26, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Jae Hong Park, Daejeon, KR;
Hyung Il Yang, Daejeon, KR;
Kee Young Lee, Daejeon, KR;
Keon Woo Kim, Daejeon, KR;
Sang Jo Bae, Daejeon, KR;
Woo Yong Cho, Daejeon, KR;
Sung Yoon Lee, Daejeon, KR;
Kyung Gu Lee, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1334 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1334 (2013.01); G02F 1/1337 (2013.01); G02F 1/133528 (2013.01); G02F 1/133634 (2013.01);
Abstract
The present application provides an optical film. By controlling transmittance of a liquid crystal layer comprising a radical initiator for the maximum absorption wavelength of the radical initiator, the present application can provide an optical film having a liquid crystal layer having excellent resistance to external stimuli and excellent optical properties. Such an optical film can have various forms and can be used in various fields.