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:
May. 19, 2020
Filed:
Apr. 14, 2017
Lg Chem, Ltd., Seoul, KR;
Dong Hyun Oh, Daejeon, KR;
Jung Sun You, Daejeon, KR;
Eun Jung Lim, Daejeon, KR;
In Ju Mun, Daejeon, KR;
Kyung Ki Hong, Daejeon, KR;
Kum Suek Seo, Daejeon, KR;
Hyo Jin Lee, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
A transmittance-variable film and the use thereof are provided. The transmittance-variable film can be useful in switching between a clear state and a dark state and reducing a difference in contrast ratio between left and right viewing angles, thereby securing excellent bilateral symmetry. Such a transmittance-variable film can be applied to various applications including various materials for buildings or vehicles requiring the control of transmissivity, or eyewear such as goggles for sports or experiencing augmented realities, sunglasses, helmets, etc.