Pixel-driving circuit, the driving method thereof, and display device

Abstract

The embodiment of present disclosure provides a pixel driving circuit and a driving method thereof and a display device, which can improve the undesirable phenomena of uneven display luminance of a display caused by a threshold voltage. The pixel driving circuit comprises a light emitting unit and at least one driving unit. The driving unit comprises a driving module, a compensation module and an initialization module. The light emitting unit is connected to the driving unit, a high level signal terminal, a low level signal terminal and a first signal terminal; the driving module is connected to the light emitting unit, a second signal terminal, the compensation module and the initialization module, respectively; the initialization module is connected to the light emitting unit, the driving module, the compensation module, an initial voltage terminal and a fourth signal terminal; the compensation module is connected to the driving module, the initialization module, a reference voltage terminal, a scanning signal terminal, a data voltage terminal and a third signal terminal. The driving unit further comprises a first driving unit and a second driving unit for alternately driving two adjacent frames of image.