A mobile terminal comprising: a wireless communication unit configured to wirelessly communicate with at least one other terminal; a display unit configured to display information; a touch sensor configured to sense tap gestures applied to the display unit; a memory configured to store a matching of a plurality of actions to perform with a plurality of tap gestures; and a controller configured to: display a home screen and a lock screen on the display unit, wherein the home screen includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed, and wherein the lock screen displayed in a lock mode of the mobile terminal includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed; receive tap gestures including a first tap gesture and a second tap gesture via the touch sensor; execute a function associated with the object when the first tap gesture is sensed in the at least one region in which the object is displayed of one of the home screen or the lock screen; terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the home screen within a reference time starting from the first tap gesture; and terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the lock screen within the reference time starting from the first tap gesture. a wireless communication unit configured to wirelessly communicate with at least one other terminal; a display unit configured to display information; a touch sensor configured to sense tap gestures applied to the display unit; a memory configured to store a matching of a plurality of actions to perform with a plurality of tap gestures; and a controller configured to: display a home screen and a lock screen on the display unit, wherein the home screen includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed, and wherein the lock screen displayed in a lock mode of the mobile terminal includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed; receive tap gestures including a first tap gesture and a second tap gesture via the touch sensor; execute a function associated with the object when the first tap gesture is sensed in the at least one region in which the object is displayed of one of the home screen or the lock screen; terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the home screen within a reference time starting from the first tap gesture; and terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the lock screen within the reference time starting from the first tap gesture. display a home screen and a lock screen on the display unit, wherein the home screen includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed, and wherein the lock screen displayed in a lock mode of the mobile terminal includes at least one region in which an object is displayed and at least one empty space region in which no object is displayed; receive tap gestures including a first tap gesture and a second tap gesture via the touch sensor; execute a function associated with the object when the first tap gesture is sensed in the at least one region in which the object is displayed of one of the home screen or the lock screen; terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the home screen within a reference time starting from the first tap gesture; and terminate at least one function being executed in the mobile terminal and deactivate the display unit when the second tap gesture is sensed in a region predetermined based on the first tap gesture applied on the at least one empty space region of the lock screen within the reference time starting from the first tap gesture.