公开(公告)号：US20240274073A1

公开(公告)日：2024-08-15

申请号：US18021955

申请日：2022-06-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xuliang Zhao ,  Lujiang Huangfu ,  Jianchao Zhu

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: The present application provides a pixel driving circuit, a control method thereof, and a display device, which relates to the technical field of display. The pixel driving circuit is configured to drive a light emitting diode to emit light at different refresh rates, and includes: a first control module, a second control module, a compensation module, a refresh module, a first reset module, a first light emitting control module, a driving module, and a second light emitting control module. By holding potentials of a first node and a second node, the pixel driving circuit according to the present application may operate at different refresh rates, and the problem of insufficient Vth capture time is effectively solved.

公开(公告)号：US12277906B2

公开(公告)日：2025-04-15

申请号：US18029829

申请日：2022-04-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xuliang Zhao ,  Jianchao Zhu ,  Lujiang Huangfu

IPC: G09G3/3241

Abstract: A pixel driving circuit is used for driving a light emitting element, in the pixel driving circuit, a first terminal of the driving sub-circuit being coupled to a power supply line; a compensation sub-circuit is respectively coupled to a scanning line, a control terminal of the driving sub-circuit, and a second terminal of the driving sub-circuit; a first terminal of the coupling sub-circuit being coupled to the control terminal of the driving sub-circuit; a first terminal of the storage sub-circuit being coupled to a second terminal of the coupling sub-circuit; a data writing-in sub-circuit is respectively coupled to a second terminal of the storage sub-circuit, a data line, and a reset line; a first reset sub-circuit is respectively coupled to the reset line, an initialization signal line, the control terminal of the driving sub-circuit, and the second terminal of the coupling sub-circuit.