Pixel driving circuit and display panel

A pixel driving circuit, comprising a light-emitting module and a compensation driving module, wherein the light-emitting module is configured to receive a first low power source voltage (EVDD) in an initial stage, a threshold voltage compensation stage, and a data writing stage;

• the light-emitting module receives a first high power source voltage (EVDD) in a light-emitting stage;
• the compensation driving module is electrically connected to the light-emitting module, comprises a doubled-gate driving thin film transistor (T10), and is configured to receive a high potential signal to turn on the doubled-gate driving thin film transistor (T10), and receive a second high power source voltage (VSS) to charge a bottom gate of the doubled-gate driving thin film transistor (T10) to adjust a threshold voltage (Vth) of the doubled-gate driving thin film transistor (T10) to an initial value in the initial stage;
• the compensation driving module receives a reference voltage (Vref) to turn on the doubled-gate driving thin film transistor (T10), and receives a second low power source voltage (VSS) to discharge the bottom gate of the doubled-gate driving thin film transistor (T10), and compensates the threshold voltage (Vth) of the doubled-gate driving thin film transistor (T10) to be equal to a voltage difference between the reference voltage (Vref) and the second low power source voltage (VSS) in the threshold voltage compensation stage;
• the compensation driving module receives a data signal (Data) and the second low power source voltage (VSS) in the data writing stage;
• and the doubled-gate driving thin film transistor (T10) is turned on, and the compensation driving module receives the second low power source voltage (VSS) to control the light-emitting module to emit light in the light-emitting stage.