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. 18, 2020
Filed:
Feb. 13, 2018
Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Young Oh, Suwon-si, KR;
Jeong Ho Lee, Suwon-si, KR;
Yong Un Jung, Suwon-si, KR;
Jang Hyun Cho, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
An optical film for improving contrast ratio, a polarizing plate including the same, and a liquid crystal display including the polarizing plate are provided. An optical film for improving contrast ratio includes a protective layer and a contrast ratio improving layer on the protective layer, and the contrast ratio improving layer includes a first resin layer and a second resin layer facing the first resin layer, and the second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns, contains a light absorber, and satisfies Equation 1 as defined herein.