A mobile terminal comprising: a display module for displaying an image in an entire display zone; a sensing unit for recognizing a gesture externally input, said gesture being for conversion between two-dimensional display and three-dimensional display; and a controller for controlling the display module to: display the image in the entire display zone before a gesture is input, either two-dimensionally in a first initial mode, or three-dimensionally in a second initial mode, perform, upon recognition of the gesture, a first display action for three-dimensionally displaying a part of the image in a first zone (551; 651) of the entire display zone and two-dimensionally displaying the other part of the image in a second zone (520; 620) adjacent the first zone (551; 651), and to perform a second display action subsequently to the first display action for three-dimensionally displaying a part of the image in a third zone (553; 653) of the entire display zone and two-dimensionally displaying the other part of the image in a fourth zone adjacent the third zone (553, 653), wherein for said first initial mode the third zone comprises the first zone and the second zone comprises the fourth zone, wherein the third zone is gradually enlarged at an expense of the fourth zone which is gradually reduced, and wherein for said second initial mode the first zone comprises the third zone and the fourth zone comprises the second zone, wherein the fourth zone is gradually enlarged at an expense of the third zone which is gradually reduced. a display module for displaying an image in an entire display zone; a sensing unit for recognizing a gesture externally input, said gesture being for conversion between two-dimensional display and three-dimensional display; and a controller for controlling the display module to: display the image in the entire display zone before a gesture is input, either two-dimensionally in a first initial mode, or three-dimensionally in a second initial mode, perform, upon recognition of the gesture, a first display action for three-dimensionally displaying a part of the image in a first zone (551; 651) of the entire display zone and two-dimensionally displaying the other part of the image in a second zone (520; 620) adjacent the first zone (551; 651), and to perform a second display action subsequently to the first display action for three-dimensionally displaying a part of the image in a third zone (553; 653) of the entire display zone and two-dimensionally displaying the other part of the image in a fourth zone adjacent the third zone (553, 653), wherein for said first initial mode the third zone comprises the first zone and the second zone comprises the fourth zone, wherein the third zone is gradually enlarged at an expense of the fourth zone which is gradually reduced, and wherein for said second initial mode the first zone comprises the third zone and the fourth zone comprises the second zone, wherein the fourth zone is gradually enlarged at an expense of the third zone which is gradually reduced. display the image in the entire display zone before a gesture is input, either two-dimensionally in a first initial mode, or three-dimensionally in a second initial mode, perform, upon recognition of the gesture, a first display action for three-dimensionally displaying a part of the image in a first zone (551; 651) of the entire display zone and two-dimensionally displaying the other part of the image in a second zone (520; 620) adjacent the first zone (551; 651), and to perform a second display action subsequently to the first display action for three-dimensionally displaying a part of the image in a third zone (553; 653) of the entire display zone and two-dimensionally displaying the other part of the image in a fourth zone adjacent the third zone (553, 653), wherein for said first initial mode the third zone comprises the first zone and the second zone comprises the fourth zone, wherein the third zone is gradually enlarged at an expense of the fourth zone which is gradually reduced, and wherein for said second initial mode the first zone comprises the third zone and the fourth zone comprises the second zone, wherein the fourth zone is gradually enlarged at an expense of the third zone which is gradually reduced.