Pixel driving circuit, display panel and display device

Abstract

The invention discloses a pixel driving circuit, a display panel and a display device. The pixel driving circuit comprises a driving module which is used for generating driving current according to data voltage; a light emitting module which is used for responding to the driving current so as to display the to-be-displayed brightness; a data writing module which is used for writing data voltage into the first end of the driving module; a threshold compensation module which is used for capturing the threshold voltage of the driving module to the control end of the driving module; a first storage module; and a second storage module, wherein the first end of the second storage module is electrically connected with the control end of the data writing module, and the second end of the second storage module is electrically connected with the control end of the driving module. The threshold compensation module comprises a first compensation transistor and a second compensation transistor which are connected in series between the second end of the driving module and the control end of the driving module, and the transistor types of the first compensation transistor and the second compensation transistor are different. The effects of reducing the leakage current of the pixel driving circuit and maintaining the grid voltage of the driving transistor are achieved.

Description

technical field [0001] The embodiments of the present invention relate to the field of display technology, and in particular, to a pixel driving circuit, a display panel and a display device. Background technique [0002] With the development of the display technology, the application of the display panel is more and more extensive, and correspondingly, the requirement for the display panel is also higher and higher. [0003] The leakage current of the transistors of the existing display panel is large, the gate voltage of the driving transistor cannot be maintained, and the brightness to be displayed cannot be well displayed. Contents of the invention [0004] The present invention provides a pixel driving circuit, a display panel and a display device to reduce the leakage current of transistors in the display panel, maintain the gate voltage of the driving transistor, and better display the brightness to be displayed. [0005] In the first aspect, an embodiment of the p...

AI Technical Summary

Problems solved by technology

[0003] The transistor leakage current of the existing display panel is large, the gate voltage of the driving transistor cannot be maintained, and the brightness to be displayed cannot be displayed well.

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