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.