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:
Jan. 10, 2023
Filed:
Oct. 27, 2020
Applicant:
Dexerials Corporation, Tokyo, JP;
Inventor:
Junichi Sugawara, Tokyo, JP;
Assignee:
DEXERIALS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/13363 (2006.01); G03B 21/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02F 1/133632 (2013.01); G02F 1/133634 (2013.01); G03B 21/006 (2013.01); G02F 2413/02 (2013.01); G02F 2413/06 (2013.01); G02F 2413/08 (2013.01); G02F 2413/10 (2013.01);
Abstract
A phase difference compensation element, including: a transparent substrate; a first optical anisotropic layer that includes an inorganic material, and has a C-plate retardance; and a second optical anisotropic layer that includes an inorganic material, and includes an oblique angle vapor deposition film that does not have an O-plate retardance, wherein the phase difference compensation element including the first optical anisotropic layer and the second optical anisotropic layer in combination has a quasi-O-plate retardance.