A pixel circuit and a driving method thereof, and a display device

Abstract

The embodiment of the present invention provides a pixel circuit and its driving method and display device, which relate to the field of display technology and can solve the problem of short-term afterimage. The pixel circuit includes a reset module, a driving module, a writing module, a compensation module, a light-emitting control module and a light-emitting device. The reset module writes the initial voltage of the initial voltage terminal into the gate of the driving transistor in the driving module, and writes the voltage of the third voltage terminal into the first electrode of the driving transistor; the driving transistor is in a conducting state during the reset stage; the writing module writes the data voltage of the data voltage terminal into the driving module; the compensation module compensates for the threshold voltage of the driving transistor in the driving module; the light-emitting control module transmits the driving current generated by the driving module under the action of the first voltage terminal and the second voltage terminal and the data voltage written to the driving module to the light-emitting device; the light-emitting device emits light according to the driving current. The above-mentioned pixel circuit is used to drive sub-pixels for display.

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