1. A method of controlling a mobile terminal, the method comprising: detecting a first touch on the mobile terminal for a predetermined time when the mobile terminal is in a locked state; simultaneously displaying a locking icon and an unlocking icon in response to the detected first touch; and detecting a second touch on the locking icon or the unlocking icon, wherein touching the locking icon for a predetermined time will partially unlock the mobile terminal, and wherein touching and dragging the unlocking icon to the locking icon will fully unlock the mobile terminal.