DISPLAY APPARATUS, POWER SUPPLY APPARATUS AND POWER SUPPLY METHOD THEREOF

摘要

The present invention relates to a display apparatus, a power supply apparatus, and a power supply method thereof. The display apparatus comprises: an image processing unit for processing an image signal; a display unit for displaying an image based on the image signal; a control unit for controlling the display of the image; and a power supply unit for supplying operation power to the control unit. The power supply unit includes: a power circuit unit for inputting AC power to output the operation power in a switching mode; a noise reduction unit for reducing high-frequency noise by the switching mode; and a discharging circuit unit for supplying remaining voltage of the noise reduction unit to the power circuit unit when the AC power is inputted, and discharging the remaining voltage of the noise reduction unit when the AC power is blocked. Accordingly, power consumption, occurring when the remaining voltage of the noise reduction unit is discharged, can be reduced.