Multi-directional extension apparatus and method

1. An electronic apparatus comprising:

a first display comprising a first side surface disposed along a first direction and a second side surface disposed along a second direction perpendicular to the first direction;

a flexible second display disposed behind the first display and comprising a main region, a first region extending from the main region toward the first side surface, and a second region extending from the main region toward the second side surface;

a first roller configured to wind or unwind the first region and movable along the first direction; and

a second roller configured to wind or unwind the second region and movable along the second direction,

wherein the first roller moves along the first direction based on a rolling operation of the second roller, and

wherein the second roller moves along the second direction based on a rolling operation of the first roller.

2. The electronic apparatus of claim 1 , wherein the first roller is disposed adjacent to the first side surface along the first direction, and

wherein the second roller is disposed adjacent to the second side surface along the second direction.

3. The electronic apparatus of claim 1 , wherein the first roller has a first rotating axis in parallel with the first direction, and

wherein the second roller has a second rotating axis in parallel with the second direction.

4. The electronic apparatus of claim 1 , wherein the second display has an “L” shape.

5. The electronic apparatus of claim 1 , further comprising:

a first driving device configured to move the first and second rollers linearly in the first and second directions; and

a second driving device configured to rotate the first and second rollers.

6. The electronic apparatus of claim 5 , wherein the first driving device comprises a first motor configured to move the first roller along the first direction and a second motor configured to move the second roller along the second direction, and

wherein the second driving device comprises a third motor configured to rotate the first roller and a fourth motor configured to rotate the second roller.

7. The electronic apparatus of claim 6 , further comprising:

a sensor configured to sense a pulling direction of the second display; and

a processor configured to control the first and second driving devices based on the pulling direction sensed by the sensor so that the second display is moved to a preset position.

8. The electronic apparatus of claim 7 , wherein the processor is further configured to control the first motor so that the first roller moves in the first direction, and control the fourth motor so that the second roller unwinds the second region in the first direction, when the pulling direction is the first direction.

9. The electronic apparatus of claim 7 , wherein the processor is further configured to control the second motor so that the second roller moves in the second direction, and control the third motor so that the first roller unwinds the first region in the second direction, when the pulling direction is the second direction.

10. The electronic apparatus of claim 7 , wherein the processor is further configured to control the first motor and the third motor so that the first roller unwinds the first region in the second direction while moving in the first direction, and control the second and fourth motors so that the second roller unwinds the second region in the first direction while moving in the second direction, when the pulling direction is a diagonal direction.

11. The electronic apparatus of claim 1 , further comprising:

a first frame supporting the first side surface and the second side surface of the first display;

a second frame slidable in the first direction with respect to the first frame;

a third frame slidable in the second direction with respect to the first frame; and

a fourth frame slidable in the second direction with respect to the second frame and slidable in the first direction with respect to the third frame,

wherein each of the first frame, the second frame, the third frame, and the fourth frame has an “L” shape.

12. The electronic apparatus of claim 11 ,

wherein the first frame comprises a first vertical area supporting the first side surface and a first horizontal area supporting the second side surface,

wherein the second frame comprises a second vertical area slidable in the first direction with respect to the first vertical area and a second horizontal area disposed perpendicular to the second vertical area,

wherein the third frame comprises a third horizontal area slidable in the second direction with respect to the first horizontal area and a third vertical area disposed perpendicular to the third horizontal area, and

wherein the fourth frame comprises a fourth horizontal area slidable in the second direction with respect to the second horizontal area and a fourth vertical area slidable in the first direction with respect to the third vertical area.

13. The electronic apparatus of claim 1 , further comprising:

a first guide roller and a second guide roller disposed in parallel with the first roller and the second roller, respectively; and

a first supporting member and a second supporting member of which one end is connected to one end of the first region and the second region, respectively, and other end is wound around the first guide roller and the second guide roller, respectively.

14. The electronic apparatus of claim 13 , wherein a part of the first region is disposed in parallel with the first display between the first roller and the first guide roller, and

wherein a part of the second region is disposed in parallel with the first display between the second roller and the second guide roller.

15. The electronic apparatus of claim 1 , further comprising:

a first auxiliary roller, disposed in parallel with the first roller between the first roller and the first display, for guiding a moving path of the first region; and

a second auxiliary roller, disposed in parallel with the second roller between the second roller and the first display, for guiding a moving path of the second region.