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. 09, 2022
Filed:
Nov. 12, 2019
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Soonhwan Hong, Paju-si, KR;
Cheolhwan Lee, Paju-si, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3258 (2016.01); G09G 3/3233 (2016.01); G09G 3/3275 (2016.01); H01L 27/32 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/3233 (2013.01); G09G 3/3275 (2013.01); H01L 27/3248 (2013.01); H01L 27/3276 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0809 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/045 (2013.01); H01L 27/124 (2013.01);
Abstract
An organic light emitting display device can include an organic light emitting diode (OLED), a driving transistor connected to an anode electrode of the OLED, a scan transistor, a digital-to-analog converter (DAC) and a sensing unit. The scan transistor is connected the anode electrode of the OLED and a data line. The DAC supplies a data voltage for displaying to the data line in a displaying period and supplies a data voltage for sensing to the data line in a sensing period. The sensing unit obtains an anode voltage of the OLED as a sensing voltage through the data line in the sensing period.