公开(公告)号：US10170044B2

公开(公告)日：2019-01-01

申请号：US15233510

申请日：2016-08-10

Applicant: LG Display Co., Ltd.

Inventor： Youngju Park ,  Sanghyun Lim ,  Sanghoon Jeong

IPC: G06F3/041 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283

Abstract: An organic light emitting display, and a driving method thereof are discussed. The organic light emitting display according to an embodiment includes a plurality of pixels sharing a sensing path, a first switch circuit configured to supply a sensing data voltage to the pixels sharing the sensing path through data lines in response to a first scan pulse, a second switch circuit configured to electrically connect an Organic Light Emitting Diode (OLED) of each of the pixels with the sensing path in response to a second scan pulse to simultaneously supply currents of the pixels to the sensing path in a sensing period, and a sensing circuit configured to sense a sensing value through the sensing path. The sensing path includes a reference voltage line connected to the pixels to provide the currents of the pixels to the sensing circuit. The pixels simultaneously sensed by the sensing circuit have a same sensing value.

公开(公告)号：US09990883B2

公开(公告)日：2018-06-05

申请号：US15226047

申请日：2016-08-02

Applicant: LG Display Co., Ltd.

Inventor： Youngju Park ,  Sungwook Yoon ,  Sehwan Na

IPC: G09G3/3233 ,  G09G3/3266

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0262

Abstract: An organic light emitting display comprises a display panel having data lines, scan lines, emission signal lines, and pixels. The display also comprises a data driver configured to provide a data voltage corresponding to an input image to one of the data lines connected to a pixel and a gate driver configured to provide an N-th scan pulse to an N-th scan line to charge the pixel with the data voltage during a scan period within a frame period. The display further comprises an emission driver configured to receives shift clocks and the N-th scan pulse from the gate driver to provide an N-th emission control signal to the N-th emission signal line and to control a current path through the OLED based on the N-th emission control signal during a duty driving period following the scan period within a frame period.