POWER SUPPLY DEVICE, DISPLAY APPARATUS HAVING THE SAME, AND POWER SUPPLY METHOD

摘要

PROBLEM TO BE SOLVED: To provide a power supply device, a display apparatus having the same and a power supply method, which can perform feed-forward control with respect to driving power levels that are supplied to an organic light-emitting diode (OLED) panel on the basis of a video signal provided to the OLED panel.SOLUTION: A display apparatus is disclosed. The display apparatus includes an organic light-emitting diode (OLED) panel unit for receiving an input of a video signal and a plurality of driving power levels for RGB colors for displaying an image, a video signal providing unit for providing the video signal to the OLED panel unit, and a power supply unit for supplying the plurality of driving power levels to the OLED panel unit and performing individual feedback control for each of the plurality of driving power levels.