1. Mobile terminal and method for operating rear surface input unit of same

2. The operator input unit may be disposed beneath the door and adjacent the plurality of vertically separated steps.

3. A display apparatus having a display panel displaying an image thereon, including a GUI generator providing a graphic user interface to set an afterimage elimination area, in which an afterimage is to be eliminated, on the display panel; a user input unit allowing a user to set the afterimage elimination area through the graphic user interface; and a controller controlling the GUI generator to display an afterimage elimination image in the afterimage elimination area set by operating the user input unit on the display panel.