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:
Mar. 14, 2023
Filed:
May. 27, 2021
Applicant:
Sharp Kabushiki Kaisha, Sakai, JP;
Inventors:
Akira Sakai, Sakai, JP;
Yuichi Kawahira, Sakai, JP;
Masahiro Hasegawa, Sakai, JP;
Kiyoshi Minoura, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133528 (2013.01); G02B 5/3083 (2013.01); G02F 1/13363 (2013.01); G02F 1/133504 (2013.01); G02F 1/133531 (2021.01);
Abstract
Provided is a liquid crystal display device and a polarizing plate capable of improving the contrast ratio in the front direction. The polarizing plate includes a pair of polarizers including a first polarizer and a second polarizer whose transmission axes are parallel to each other; a retarder between the paired polarizers; and a diffusion layer in at least one of a region between the paired polarizers or a region on a side without the retarder of the first polarizer.