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:
Apr. 23, 2013
Filed:
Mar. 03, 2011
Applicants:
Takahiro Naito, Tokyo, JP;
Yasushi Katayama, Kanagawa, JP;
Tatsuki Nishino, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-emitting element driving device includes: a plurality of light emitters; a power supply; a plurality of current control transistors; a plurality of constant-current circuits; a voltage selecting circuit; a control circuit; and a voltage controller.