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:
Aug. 05, 2025
Filed:
Feb. 08, 2021
Samsung Sdi Co., Ltd., Yongin-si, KR;
Do Won Kim, Suwon-si, KR;
Han Saem Kang, Suwon-si, KR;
Mun Bo Ko, Suwon-si, KR;
Sung Man Cho, Suwon-si, KR;
Ki Yong Kim, Suwon-si, KR;
Eun Sol Cho, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Provided are a polarizer comprising a polyvinyl alcohol-based film and having an endothermic peak of 50° C. to 60° C. when measured by differential scanning calorimetry at a temperature increase rate of 10° C./min; a polarizing plate comprising a polarizer and a first protective film and a second protective film laminated on one surface and the other surface of the polarizer, respectively, and having an initial shrinkage initiation temperature greater than 70° C. and less than or equal to 90° C. during thermomechanical analysis; and an optical display device comprising same.