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:
Dec. 11, 2018
Filed:
Apr. 05, 2017
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Chulwon Lee, Seoul, KR;
Seungtae Kim, Goyang-si, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); H01L 27/32 (2006.01); G09G 3/3291 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); H01L 27/3248 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0291 (2013.01); G09G 2320/0295 (2013.01); G09G 2320/043 (2013.01); G09G 2320/0646 (2013.01); G09G 2320/0666 (2013.01); G09G 2320/0693 (2013.01);
Abstract
A current sensing unit can include a current sink circuit connected to a sensing line, which reduces a pixel current fed via the sensing line by an amount equal to a sink current; a current integrator connected to the sensing line, which accumulates an adjusted current from the sensing line and outputs an integrated value based on the pixel current minus the sink current; a sampling part that samples and holds the integrated value; and an analog-to-digital converter that converts the integrated value from an analog value to a digital sensed value.