POWER SUPPLY DEVICE, DISPLAY DEVICE COMPRISING THE POWER SUPPLY DEVICE AND DRIVING METHOD USING THE SAME

摘要

PURPOSE: A power supply device, a display device including the same, and a driving method thereof are provided to reduce power consumption of a display device by sensing a panel current. CONSTITUTION: A display panel(10) includes a plurality of light emitting devices. A power supply device supplies power voltage to the display panel. A power voltage controller(50) senses a panel current. The panel current flows in the display panel. A power voltage controller controls a feedback voltage. A DC-DC converter(40) generates the power voltage and supplies power voltages to a plurality of light emitting devices.