Pixeltreiberschaltung, Anzeigetafel und Lichtemissionssteuerungsverfahren

Details

Veröffentlichungs-Nr.

EP4760684

Anmeldetag

4. Dezember 2023

Veröffentlichung

12. Juni 2025

Rechtsraum

EP

IPC

G09G3/32, G09G3/3233(ZHAO XULIANG et al.)

Abstract

The present application relates to the technical field of display. Disclosed are a pixel driving circuit, a display panel and a light-emission control method. The pixel driving circuit comprises: a turn-on control sub-circuit, which turns on a gate of a driving transistor and a first node in response to a signal from a first light-emission control signal end; a data writing sub-circuit, which writes a driving signal into the first node in response to a signal from a scanning signal end; a coupling sub-circuit, which stores the driving signal and a threshold value voltage of the driving transistor; a first light-emission control sub-circuit, which provides a signal from a first power source end to a first electrode of the driving transistor in response to a signal from a second light-emission control signal end; and a second light-emission control sub-circuit, which turns on a second electrode of the driving transistor and a light-emission device in response to a signal from the first light-emission control signal end. By means of the provision of a turn-on control sub-circuit, the effect of the capacitance value of a light-emission device on a pixel circuit is effectively blocked, thereby making the display brightness of the pixel circuit in a low-grayscale picture more uniform.

Anmelder

Firmen

Boe Technology Group Co., Ltd.
Chengdu BOE Optoelectronics Technology Co., Ltd.
Beijing BOE Technology Development Co., Ltd.

Land

🇨🇳 China