Pixel driving circuit and driving method therefor, and display panel

Abstract

A display panel, and a pixel driving circuit (PDC) and a driving method therefor, which belong to the technical field of display. A gate reset sub-circuit (M1) can load a second initialization voltage (Vinit2) to a first node (N1) in response to a third reset signal (Scan3); a threshold value compensation sub-circuit (M2) can enable electrical connection between a third node (N3) and a second initialization voltage end in response to a fifth reset signal (Scan5); a data writing sub-circuit (M4) is used for enabling a data voltage (Vdata) to be loaded to a second node (N2) in response to a scan signal (Gate); a voltage stabilizing sub-circuit (M9) is used for enabling electrical connection between the second node (N2) and a fifth node (N5) in response to a second reset signal (Scan2); a first electrode of a driving transistor (T3) is electrically connected to the second node (N2), and a second electrode of the driving transistor (T3) is electrically connected to the third node (N3); a first electrode plate (CP11) of a first capacitor (C1) is electrically connected to the first node (N1); a second electrode plate (CP12) of the first capacitor (C1), a first electrode plate (CP21) of a second capacitor (C2) and the fifth node (N5) are electrically connected to one another; and a second electrode plate (CP22) of the second capacitor (C2) is used for loading a constant voltage signal. The pixel driving circuit (PDC) can separate data writing from threshold value compensation.

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