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:
Sep. 20, 2022
Filed:
Apr. 23, 2020
Applicant:
Keiwa Inc., Tokyo, JP;
Inventors:
Akira Furuta, Tokyo, JP;
Koji Teramoto, Tokyo, JP;
Assignee:
Keiwa Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/13 (2022.01); H01L 27/32 (2006.01); H01L 51/52 (2006.01); H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
G06V 40/1329 (2022.01); G06V 40/1318 (2022.01); H01L 27/323 (2013.01); H01L 27/3244 (2013.01); H01L 51/5281 (2013.01); H01L 27/14678 (2013.01);
Abstract
A protective film covers the surface of a cover member in an OLED display with a fingerprint recognition system. The protective film includes a base layer with an in-plane retardation value of 25 nm or less. A hard coat layer may be formed on a surface of the base layer. The surface is a surface farther from the cover member.