PIXEL CIRCUIT, DRIVING METHOD THEREOF, ORGANIC LIGHT-EMITTING DISPLAY PANEL AND DISPLAY DEVICE

摘要

Embodiments of the present disclosure provide a pixel circuit, a driving method thereof, an organic light-emitting display panel and a display device. The pixel circuit is provided with a touch sensing module, a driving transistor, a driving control module and a light-emitting module. The pixel circuit compensates for a threshold voltage of the driving transistor by a diode connection of the driving transistor and a discharging of a storage capacitor, so that a driving current of the driving transistor is independent of the threshold voltage of the driving transistor, and thus the driving currents of the OLEDs located at different positions on the organic light-emitting display panel are consistent, which can improve a brightness uniformity and a reliability of the display panel.

主权项

1. A pixel circuit comprising a driving transistor, a driving control module and a light-emitting module, wherein
the driving transistor is connected with the driving control module and the light-emitting module, respectively; the driving control module is connected with an input terminal for a first level signal, an input terminal for a second level signal, an input terminal for a first timing control signal, an input terminal for a second timing control signal, an input terminal for a third timing control signal, an input terminal for a second timing control signal of a previous stage of a pixel circuit, an input terminal for a second timing control signal of a next stage of a pixel circuit, the driving transistor and the light-emitting module, respectively, and is configured to compensate for a threshold voltage of the driving transistor and control the driving transistor to drive the light-emitting module to emit light under control of timing control signals as inputted; and the light-emitting module is connected with the input terminal for the third timing control signal, the input terminal for the second level signal, the driving transistor and the driving control module, respectively, and is configured to emit light as driven by the driving transistor, under the control of the inputted timing control signal.