Display panel and pixel circuit thereof

A pixel circuit, comprising:

• a light-emitting device coupled to a power voltage;
• a driving current generator coupled to the light-emitting device and providing a driving current to drive the light-emitting device;
• a positive feedback circuit coupled to the pulse width signal generator and having a positive feedback switch;
• and
• a pulse width signal generator coupled to the driving current generator and the positive feedback circuit, and providing a pulse width signal to the driving current generator to control the driving current generator to provide the driving current, wherein the pulse width signal generator has a charge sharing switch coupled to an output end of the pulse width signal generator, and the pulse width signal generator turns on the charge sharing switch during a light-emitting period, and performs charge sharing with a control end of the positive feedback switch to control the positive feedback switch to provide a positive feedback voltage to the pulse width signal generator to increase a voltage at the output end of the pulse width signal generator and accelerate a rising speed of a voltage for controlling the driving current generator to provide the driving current.