Patent ID: 11783766

Abstract:
Disclosed are a pixel drive circuit, a driving method, and a display panel. The pixel drive circuit includes a light-emitting element, a power supply line, and a pulse amplitude modulation unit and a pulse width modulation unit connected between a high-potential power supply of the power supply line and an anode of the light emitting element. The pulse amplitude modulation unit provides driving currents with different amplitudes to the light emitting element. The pulse width modulation unit includes a second drive transistor, a first transistor and a second transistor, and a pulse width modulation circuit. The pulse width modulation circuit generates a corresponding drive signal to control the first transistor or the second transistor to be turned on based on the first data voltages during a luminescence phase, and controls the second drive transistor to be turned on to control the duration of the driving currents of the light-emitting element.