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.

Date of Patent:
May. 05, 2026

Filed:

Oct. 19, 2022
Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Il Woong Baek, Suwon-si, KR;

Yeon Ju Jung, Suwon-si, KR;

Seo Young Kang, Suwon-si, KR;

Seon Oh Hwang, Suwon-si, KR;

Kwang Ho Shin, Suwon-si, KR;

Jong Kyu Choi, Suwon-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 5/3025 (2013.01);
Abstract

A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes: a polarizer; a protective layer stacked on a surface of the polarizer; and a retardation layer stacked on another surface of the polarizer, and the protective layer has an in-plane retardation of 3,000 nm or more at a wavelength of 550 nm, an optical axis of the protective layer is tilted at an angle of −2° to +2° with respect to a light absorption axis of the polarizer, and the polarizer has a single transmittance of 44.0% or more and a minimum crossed transmittance of 0.005% or more at a wavelength of 400 nm to 700 nm.


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