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. 19, 2020
Filed:
Aug. 11, 2017
Applicant:
Silicon Works Co., Ltd., Daejeon-si, KR;
Inventors:
Assignee:
Silicon Works Co., Ltd., Daejeon, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3241 (2016.01); G09G 3/3291 (2016.01); G09G 3/20 (2006.01); G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3291 (2013.01); G09G 3/20 (2013.01); G09G 3/3241 (2013.01); G09G 3/3258 (2013.01); G09G 2320/029 (2013.01);
Abstract
Disclosed is a sensing circuit of a display device for external compensation of an OLED. The sensing circuit includes a current receiving unit configured to receive a pixel current containing a leakage current, convert the pixel current at a preset current ratio, and output the converted pixel current; a current source unit; a current sinking unit; a current detection unit; and a detection signal output unit configured to sample an offset voltage corresponding to the leakage current using the detected current.