公开(公告)号：US12243499B2

公开(公告)日：2025-03-04

申请号：US18386179

申请日：2023-11-01

Applicant: LG DISPLAY CO., LTD.

Inventor： Youngjun Choi ,  Sojung Lee

IPC: G09G3/36 ,  G09G3/32 ,  G09G3/3266

Abstract: The present disclosure provides a gate driving circuit and a display device. An nth stage circuit among a plurality of stage circuits included in a gate driving circuit according to embodiments of the disclosure may include a scan output buffer circuit configured to output a scan signal according to voltages of a Q node and a Qb node, a control circuit including a plurality of transistors to control the voltages of the Q node and the Qb node, the plurality of transistors including a first Q node discharge transistor turned on or off by the voltage of the Qb node to control connection between the Q node and a low-potential voltage node, and a body bias circuit configured to supply a body bias voltage to a body of a first Q node discharge transistor.

公开(公告)号：US12125439B2

公开(公告)日：2024-10-22

申请号：US17970422

申请日：2022-10-20

Applicant: LG Display Co., Ltd.

Inventor： Hyemi Oh ,  Sangwook Lee ,  Sojung Lee

IPC: G09G3/3233 ,  G09G3/3275

CPC classification number: G09G3/3233 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2360/16

Abstract: A display device, a data driving circuit and a display driving method are discussed. The display device can include a display panel in which a plurality of subpixel circuits including a light emitting element, a driving transistor, and a sensing transistor are disposed. The display device further can include a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines, a data driving circuit configured to supply a plurality of data voltages to the display panel through a plurality of data lines and supply a constant current to the plurality of subpixel circuits during a resistance sensing period, and a timing controller configured to control the gate driving circuit and the data driving circuit, and supply compensation image data to the display panel by using the resistance of the sensing transistor detected in the resistance sensing period.