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:
Jul. 13, 2021
Filed:
Feb. 02, 2018
Applicant:
Sony Corporation, Tokyo, JP;
Inventors:
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/62 (2014.01); G02B 5/23 (2006.01); H04N 9/31 (2006.01); G03B 21/10 (2006.01); G03B 21/56 (2006.01); G03B 21/625 (2014.01);
U.S. Cl.
CPC ...
G03B 21/62 (2013.01); G02B 5/23 (2013.01); G03B 21/10 (2013.01); G03B 21/56 (2013.01); G03B 21/625 (2013.01); H04N 9/3141 (2013.01);
Abstract
There is provided a projection screen and a projection display apparatus that make it possible to improve display quality. A projection screen according to an embodiment of the present disclosure includes a display member () having transmittance or reflectance that varies in accordance with first light (UV) to be applied.