Pixel driving circuit having a voltage stabilization sub-circuit and display panel thereof

A display panel, comprising a plurality of pixels, each of the plurality of pixels comprises a plurality of sub-pixels, and each of the plurality of sub-pixels is coupled to one pixel driving circuit applied to a display panel comprising a plurality of pixels;

• wherein the pixel driving circuit comprises:
• a driving sub-circuit which comprises a driving transistor, wherein an input of the driving transistor is coupled to a driving voltage terminal, and an output of the driving transistor is coupled to a sub-pixel;
• a data-writing sub-circuit, wherein an output of the data-writing sub-circuit is coupled between the input of the driving transistor and the driving voltage terminal, and the data-writing sub-circuit is configured to write a data voltage to the driving transistor in a compensation and writing stage;
• and
• a voltage stabilization transistor coupled to a control terminal of the driving transistor and configured to keep a voltage at the first control terminal of the driving transistor to be stable in a reset stage, wherein the driving transistor further comprises a second control terminal, the first control terminal of the driving transistor and an active layer of the driving transistor are constituted as a first stray capacitance, and the second control terminal is coupled to a direct current (DC) signal terminal, so that the second control terminal of the driving transistor and the active layer are constituted as a second stray capacitance.

A display device, comprising a display panel, the display panel comprises a plurality of pixels, each of the plurality of pixels comprises a plurality of sub-pixels, and each of the plurality of sub-pixels is coupled to one pixel driving circuit applied to a display panel comprising a plurality of pixels;

• the pixel driving circuit comprises:
• a driving sub-circuit which comprises a driving transistor, wherein an input of the driving transistor is coupled to a driving voltage terminal, and an output of the driving transistor is coupled to a sub-pixel;
• a data-writing sub-circuit, wherein an output of the data-writing sub-circuit is coupled between the input of the driving transistor and the driving voltage terminal, and the data-writing sub-circuit is configured to write a data voltage to the driving transistor in a compensation and writing stage;
• and
• a voltage stabilization transistor coupled to a control terminal of the driving transistor and configured to keep a voltage at the first control terminal of the driving transistor to be stable in a reset stage, wherein the driving transistor further comprises a second control terminal, the first control terminal of the driving transistor and an active layer of the driving transistor are constituted as a first stray capacitance, and the second control terminal is coupled to a direct current (DC) signal terminal, so that the second control terminal of the driving transistor and the active layer are constituted as a second stray capacitance.