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:
May. 25, 2021
Filed:
Jan. 31, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/00 (2006.01); G09G 3/36 (2006.01); G02F 1/13357 (2006.01); G03B 21/20 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G03B 21/2053 (2013.01); G02F 1/1336 (2013.01); G09G 3/36 (2013.01); G02F 1/133627 (2021.01); G09G 2300/0478 (2013.01); G09G 2320/046 (2013.01); G09G 2330/021 (2013.01); G09G 2330/027 (2013.01); G09G 2354/00 (2013.01);
Abstract
A projector includes an image projection unit for displaying an image by a liquid crystal panel, and a controller that powers off the projector after displaying a black image in the image projection unit for a predetermined time (a set refresh time) in a refresh mode for improving burn-in of the liquid crystal panel, in which the controller stops the refresh mode when an interrupt event is generated before the set refresh time elapses in the refresh mode and powers off the projector after executing an interrupt process according to the interrupt event.