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. 21, 2025
Filed:
Sep. 19, 2022
Dongwoo Fine-chem Co., Ltd., Iksan-si, KR;
Sung-Su Kim, Pyeongtaek-si, KR;
Sung-Ho Baek, Pyeongtaek-si, KR;
Hong-Jun Ahn, Seoul, KR;
Pyoung-Yun Oh, Pyeongtaek-si, KR;
DONGWOO FINE-CHEM CO., LTD., Iksan-si, KR;
Abstract
The present invention relates to a transmittance-variable optical laminate, a method for manufacturing same, a smart window comprising same, and a vehicle and building window or door employing same, the optical laminate comprising: a first polarizing plate including a first polarizer and a polarization rotation layer; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate including a second polarizer and a retardation layer, and facing the first polarizing plate; a second transparent conductive layer formed on one surface of the second polarizing plate, and facing the first transparent conductive layer; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer.