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. 10, 2016
Filed:
Oct. 18, 2013
Applicant:
Sct Technology, Ltd., Grand Cayman, KY;
Assignee:
SCT TECHNOLOGY, LTD., Grand Cayman, KY;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01); G09G 3/34 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 3/3426 (2013.01); G09G 2310/0264 (2013.01); H05B 33/0809 (2013.01);
Abstract
A driver circuit for an LED display panel has a first constant current driver to drive green LEDs, a second constant current driver to drive blue LEDs, and a third constant current driver to drive red LEDs. The driver circuit also has an analog power module electrically coupled to the first, the second, and the third constant current drivers. The analog power module has two or more power sources. The driver circuit further includes a digital controller for transmitting digital control signals to the analog driver. The digital controller is powered by a digital power module.