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:
Sep. 16, 2008
Filed:
Mar. 26, 2004
Applicant:
Yutaka Ozaki, Tsuchiura, JP;
Inventor:
Yutaka Ozaki, Tsuchiura, JP;
Assignee:
Hunet Display Technology Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Driving voltages of an LED of each color are stored in applied voltage storage registeror, and the LED of each color is driven with independent driving voltage, whereby current consumption is reduced. Further, data in applied voltage storage registersandis made rewritable via storage value setting bus, and when there are fluctuations in minimum emission voltage in actually mounted LEDs due to individual differences, voltages to store in the applied voltage storage registersandcan be changed as appropriate corresponding to the fluctuations.