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.

Date of Patent:
Apr. 03, 2018

Filed:

Jul. 24, 2017
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

MooKyoung Hong, Jinhae-si, KR;

SangGoo Kwon, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/3258 (2016.01); G09G 3/3233 (2016.01); G09G 3/325 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/325 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0861 (2013.01); G09G 2320/043 (2013.01);
Abstract

An organic light-emitting display device includes: an organic light-emitting display panel including: a plurality of subpixels including: an organic light-emitting diode (OLED), a driving transistor (DT) driving the OLED including a first transistor between a first node of the DT and a data line, and a second transistor (T) between a second node of the DT and a reference voltage line having a reference voltage (RV) applied, a sensor, and a sampling switch, wherein, during an OLED short detection period for detecting a short circuit between the first electrode and a second electrode of the OLED: the DT and the first transistor are off, when the Tis turned off, the RV line is initialized when the RV is applied thereto, after the Tis turned on, the sampling switch is turned on to connect the sensor and the RV line, and the sensor measures the RV line voltage.


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