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:
Aug. 14, 2012
Filed:
Mar. 19, 2009
Applicants:
Eui-jeong Kang, Chungcheongnam-do, KR;
Gi-cherl Kim, Gyeonggi-do, KR;
Byung-choon Yang, Seoul, KR;
Byoung-dae YE, Gyeonggi-do, KR;
Dong-min Yeo, Daegu, KR;
Inventors:
Eui-Jeong Kang, Chungcheongnam-do, KR;
Gi-Cherl Kim, Gyeonggi-do, KR;
Byung-Choon Yang, Seoul, KR;
Byoung-Dae Ye, Gyeonggi-do, KR;
Dong-Min Yeo, Daegu, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
To drive light-emitting blocks, currents are sensed through the light-emitting blocks arranged in an M×N matrix (wherein M and N are natural numbers), wherein M rows are connected to a row switching part and N columns are connected to a column switching part. The light-emitting blocks are driven by a local dimming method with feedback control responsive to the sensed currents.