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:
Feb. 28, 2023
Filed:
May. 14, 2018
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jeong Ho Lee, Suwon-si, KR;
Dae Gyu Lee, Suwon-si, KR;
Yong Un Jung, Suwon-si, KR;
Young Oh, Suwon-si, KR;
Dong Ho Wee, Suwon-si, KR;
Jang Hyun Cho, Suwon-si, KR;
Young Hyun Ju, Suwon-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Provided are a polarizing plate and an optical display device including same, the polarizing plate comprising a polarizing film and a contrast ratio enhancement layer formed on a light-emitting surface of the polarizing film, wherein the contrast ratio enhancement layer comprises: a first resin layer including a pattern unit having one or more engraved patterns and a flat portion formed between the engraved patterns; and a second resin layer directly formed on the pattern unit, wherein the engraved patterns have a base angle of approximately 75° to approximately 90°, the pattern unit satisfies formula 1, the first resin layer has a refractive index larger than that of the second resin layer, and the first resin layer includes a dye of which the maximum absorption wavelength is approximately 550 nm to approximately 620 nm.