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:
Oct. 07, 2025

Filed:

Sep. 24, 2021
Applicant:

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

Inventors:

Seung Mi Shin, Suwon-si, KR;

Beom Deok Lee, Suwon-si, KR;

Seong Hoon Lee, Suwon-si, KR;

Seon Gyeong Jeong, Suwon-si, KR;

A Ra Jo, Suwon-si, KR;

Wan Taek Hong, Suwon-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 1/14 (2015.01); G02F 1/13363 (2006.01); G02F 1/1343 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 1/14 (2015.01); G02F 1/133634 (2013.01); G02F 1/134363 (2013.01); G02F 2413/13 (2013.01);
Abstract

An optical laminate and an optical display apparatus including the same are provided. An optical laminate includes: a polarizer; and a first protective layer and a retardation layer stacked on a light incidence surface of the polarizer, the retardation layer including at least a positive C layer, and a laminate of the first protective layer and the retardation layer having a photoelastic coefficient of about 2×10cm/dyne or less and a modulus of about 2,000 MPa to about 4,000 MPa, as measured in an absorption axis direction of the polarizer in the optical laminate.


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