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:
Oct. 18, 2022
Filed:
Dec. 22, 2016
Samsung Electronics Co., Ltd., Suwon-si, KR;
Dic Corporation, Tokyo, JP;
Tsuyoshi Ohyama, Suwon-si, KR;
Seung Hyun Lee, Yongin-si, KR;
Hyun-Seok Choi, Seoul, KR;
Hidetoshi Nakata, Saitama, JP;
Toru Ishii, Chiba, JP;
SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do, KR;
DIC CORPORATION, Tokyo, JP;
Abstract
A foldable circular polarizing plate includes a polarizer and a foldable compensation film disposed on one surface of the polarizer, wherein in-plane retardations of the liquid crystal layer at 450 nm, 550 nm, and 650 nm wavelengths satisfy Relationship Equations 1 or 2, the compensation film is configured to absorb light in a wavelength region of less than or equal to 420 nm, and a reflection color in a CIE-Lab color coordinate system satisfies Δa*b*≤5.0 and a foldable organic light emitting diode display including the same.(450 nm)<(550 nm)≤(650 nm)  [Relationship Equation 1](450 nm)≤(550 nm)<(650 nm)  [Relationship Equation 2]