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:
Jul. 20, 2021
Filed:
Nov. 27, 2017
Samsung Sdi Co., Ltd., Yongin-si, KR;
Young Hyun Ju, Suwon-si, KR;
Dae Seob Shim, Suwon-si, KR;
Young Oh, Suwon-si, KR;
Dong Ho Wee, 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
Provided are a contrast ratio improving optical film, a polarizing plate comprising the same, and a liquid crystal display device comprising the same, wherein the contrast ratio improving optical film comprises a contrast ratio improving layer. The contrast ratio improving layer comprises a first resin layer and a second resin layer which faces the first resin layer, wherein the second resin layer comprises a pattern part having optical patterns and a flat part between the optical patterns. The optical patterns have at least one inclined surface with respect to the flat part, and the flat part or the inclined surface has a light absorption layer formed thereon. The contrast ratio improving optical film has a lowest reflectance of 0.5% or less.