A mobile terminal including a wireless communication processor configured to provide wireless communication; a display including a main region and an extended region extended from the main region toward at least one side of the main region; and a controller configured to deactivate the main region and the extended region of the display, activate the main region of the display without activating the extended region in response to a knock code being input on the main region of the display, and activate the extended region of the display without activating the main region in response to the knock code being input on extended region of the display.