Electronic device and method of controlling mode thereof and mobile communication terminal

1. A method of controlling an operating mode of an electronic device having a touch sensitive display screen, the method comprising:

simultaneously displaying a plurality of areas corresponding to operating modes that are different from each other on the touch sensitive display screen;

changing a size of a first area and a second area of the plurality of areas without closing the first area or the second area when a user drags a boundary line between the first and the second area via a multi touch drag on the touch sensitive display screen; and

changing an operating mode of the first area and an operating mode of the second area of the plurality of areas when the multi touch drag on the touch sensitive display screen reaches a predetermined location of the touch sensitive display screen without closing the first area or the second area, the predetermined location being at, or within a predetermined distance from, a center line of the touch sensitive display screen,

wherein the changing of the operating modes is a conversion of at least one of an operating state and an input/output attribute of a current screen,

wherein the operating mode of the first area is changed from a first operating mode to a third operating mode,

wherein the operating mode of the second area is changed from a second operating mode to a fourth operating mode,

wherein the first operating mode is related to the second operating mode with respect to data input and display within the corresponding areas,

wherein the third operating mode is related to the fourth operating mode with respect to data input and display within the corresponding areas, and

wherein the first and second operating modes are voice communication modes for initiating voice communication, and the third and fourth operating modes are texting modes for transmitting text messages.

2. The method of claim 1 , wherein the first area corresponds to an area of the plurality of areas adjacent to the boundary line between the first and second area.

3. The method of claim 1 , further comprising:

moving the boundary line between the two areas in a direction corresponding to the dragging.

4. The method of claim 1 , wherein the dragging corresponds to simultaneously moving two points in a common direction.

5. The method of claim 1 , wherein the dragging corresponds to simultaneously moving two points in opposite directions.

6. The method of claim 5 , wherein the dragging corresponds to simultaneously moving the two points toward each other.

7. The method of claim 1 , wherein the multi touch drag includes two touches simultaneously inputted at two points on the boundary line between the two areas.

8. The method of claim 1 , wherein the step of changing the operating modes causes the step of changing the size of the first area and the second area to stop even if the multi touch drag continues beyond the predetermined location of the touch sensitive display screen.

9. An electronic device, comprising:

a touch sensitive display screen configured to simultaneously display a plurality of areas corresponding to operating modes that are different from each other; and

a controller configured to:

change a size of a first area and a second area of the plurality of areas when a user drags a boundary line between the first and the second area via a multi touch drag on the touch sensitive display screen without closing the first area or the second area, and

change an operating mode of the first area and an operating mode of the second area of the plurality of areas when the multi touch drag on the touch sensitive display screen reaches a predetermined location of the touch sensitive display screen without closing the first area or the second area, the predetermined location being at, or within a predetermined distance from, a center line of the touch sensitive display screen,

wherein the changing of the operating modes is a conversion of at least one of an operating state and an input/output attribute of a current screen,

wherein the operating mode of the first area is changed from a first operating mode to a third operating mode,

wherein the operating mode of the second area is changed from a second operating mode to a fourth operating mode,

wherein the first operating mode is related to the second operating mode with respect to data input and display within the corresponding areas,

wherein the third operating mode is related to the fourth operating mode with respect to data input and display within the corresponding areas, and

wherein the first and second operating modes are voice communication modes for initiating voice communication, and the third and fourth operating modes are texting modes for transmitting text messages.

10. The electronic device of claim 9 , wherein the first area corresponds to an area of the plurality of areas adjacent to the boundary line between the first and second area.

11. The electronic device of claim 10 , wherein the multi touch drag includes two touches simultaneously inputted at two points on the boundary line between the two areas.

12. The electronic device of claim 9 , wherein the controller is further configured to move the boundary line between the two areas in a direction of the dragging.

13. The electronic device of claim 9 , wherein the dragging corresponds to simultaneously moving two points in a common direction.

14. The electronic device of claim 9 , wherein the dragging corresponds to simultaneously moving two points in opposite directions.

15. The electronic device of claim 14 , wherein the dragging corresponds to simultaneously moving the two points toward each other.

16. The electronic device of claim 9 , further comprising:

a communications module configured to wirelessly transmit and receive information.

17. The electronic device of claim 9 , wherein the controller is configured to stop changing the size of the first area and the second area even if the multi touch drag continues beyond the predetermined location of the touch sensitive display screen.