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. 03, 2011
Filed:
Sep. 26, 2008
Applicants:
Masutaka Inoue, Hirakata, JP;
Takaaki Abe, Osaka, JP;
Seiji Tsuchiya, Otsu, JP;
Inventors:
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a projection display device which includes a light source for outputting a light and a plurality of light modulating devices for modulating the light from the light source based on an input image signal, the projection display device comprises: a plurality of light quantity adjusting devices disposed on respective incidence sides of the light modulating devices and serving to adjust the quantity of light incident on the respective light modulating devices; and a controller unit for controlling the respective light quantity adjusting devices based on the input image signal.