Provided herein is an image display apparatus including a receiver configured to receive first image data; a signal processor configured to process the received first image data; an outputter configured to output the processed first image data; a storage configured to store second image data; and a controller configured to cut off power supplied to at least one component from among components of the image display apparatus and to control the outputter to output the stored second image data to an area of a screen, in response to the image display apparatus entering a power saving mode.