公开(公告)号：US20230200134A1

公开(公告)日：2023-06-22

申请号：US17971459

申请日：2022-10-21

Applicant: LG Display Co., Ltd.

Inventor： Sungmin PARK ,  Sujin CHAE ,  Minji HAN ,  Taekyeong LEE ,  Youngjae LEE

IPC: H01L27/32 ,  H01L27/12

CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/3276 ,  H01L27/1255 ,  H01L27/3265

Abstract: An organic light-emitting display device can include a plurality of pixels arranged in a display panel. Each pixel includes an organic light-emitting element configured to emit light based on drive current, and a driving transistor configured to control the drive current. The driving transistor includes a source electrode acting as a first node, a gate electrode acting as a second node, and a drain electrode acting as a third node. Each pixel further includes a first transistor connecting the second node and the third node to each other in a diode manner, a second transistor configured to apply a data voltage to the first node, a third transistor configured to apply a high potential drive voltage to the first node, and a fourth transistor configured to form a current path between the driving transistor and the organic light-emitting element.

公开(公告)号：US20190096336A1

公开(公告)日：2019-03-28

申请号：US16144682

申请日：2018-09-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Taekyeong LEE

IPC: G09G3/3291 ,  H01L27/32 ,  G09G3/3266

Abstract: An organic light-emitting display device can include an organic light-emitting element; a driving transistor connected in series with the organic light-emitting element, the driving transistor and the organic light-emitting element being between a first driving power supply line for supplying a first driving voltage and a second driving power supply line for supplying a second driving voltage lower than first driving voltage; a first transistor configured to turn on based on an i-th scan signal and supply a data voltage to a first node, where i is a natural number greater than or equal to 2 and less than or equal to N, and N is a number of scan-lines; a capacitor between the first node and a gate electrode of the driving transistor, the capacitor is configured to supply a turn-on signal of the driving transistor to the gate electrode of the driving transistor based on the data voltage; and a second transistor configured to turn on based on a (i−1)-th scan signal and supply a first reference voltage to a second node, in which the second node is disposed between the driving transistor and the capacitor, and the capacitor is between the first and second nodes.