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:
Mar. 15, 2005
Filed:
Jan. 19, 2000
Applicant:
Taisuke Nakamura, Saitama, JP;
Inventor:
Taisuke Nakamura, Saitama, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G003/32 ;
U.S. Cl.
CPC ...
Abstract
Current flowing through a plurality of light emission diodes is individually controlled, thereby an image with a desired color is displayed according to color lights emitted from the light emission diodes. A sum of current flowing through the light emission diodes is maintained at a predetermined current, thereby brightness of the image is maintained at a predetermined brightness.