A display apparatus including: a communication unit which communicates with a peripheral device; an image processing unit which processes an image signal received from the peripheral device; a touch panel display unit which displays an image based on the image signal and comprises a touch sensing unit which detects touch input of a user; and a controller which controls a first mode and a second mode to operate according to a setting of the user, the first mode controlling the image processing unit so that the image based on the image signal received from the peripheral device is displayed on the touch panel display unit and the second mode controlling the image processing unit and the touch panel display unit so that a graphic user interface (GUI) is displayed on the touch panel display unit and the touch input for controlling the peripheral device is received using the GUI.
