A method of controlling a display device for processing video data, a tuner configured to receive at least one of broadcast program; an network interface configured to receive at least one of application; an external device interface configured to connect at least one of external device; a display module configured to display the received broadcast program, the received application or video data received from the external device interface; and a controller configured to control the display module. Furthermore, the controller is further configured to control the display module to display the received broadcast program in first area, the controller is further configured to control the display module to display a menu identifying multiple applications in second area within the first area according to first request command signal, the controller is further configured to control the display module to display a recent list according to second request command, and the recent list comprises at least one of information identifying recently accessed external device, recently accessed application and recently accessed broadcast program based on a predetermined order.