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:
May. 19, 2026
Filed:
Feb. 26, 2024
Samsung Sdi Co., Ltd., Yongin-si, KR;
Jun Mo Koo, Suwon-si, KR;
Seong Hoon Lee, Suwon-si, KR;
Dae Seob Shim, Suwon-si, KR;
Seon Gyeong Jeong, Suwon-si, KR;
Boem Deok Lee, Suwon-si, KR;
Hyoung Tae Lim, Suwon-si, KR;
Seung Mi Shin, Suwon-si, KR;
Kyung Min Cho, Suwon-si, KR;
Ki Beom Kim, Suwon-si, KR;
Sang Hum Lee, Suwon-si, KR;
Jung Hun You, Suwon-si, KR;
Dong Ho Wee, Suwon-si, KR;
Abstract
A polarizing plate and an optical display apparatus are disclosed. A polarizing plate includes a polarizer and a stack of retardation layers on a surface of the polarizer, and the stack of retardation layers includes a second retardation layer and a first retardation layer stacked on the polarizer in sequence from the surface of the polarizer, the second retardation layer being a non-liquid crystal layer, and the stack of retardation layers has an out-of-plane retardation of −40 nm or more to less than 0 nm at a wavelength of 550 nm and satisfies Relation 1.