Display device

1. A display device comprising:

a display panel comprising a first region and a second region adjacent to the first region and being extendable;

a supporting plate configured to support the first region of the display panel and being inflexible; and

an extending portion supporter configured to support the second region of the display panel and being deformable,

wherein the extending portion supporter comprises a first metal thin film layer and a second metal thin film layer overlapping each other.

2. The display device of claim 1 , further comprising an extension driver that partially contacts the extending portion supporter,

wherein the extending portion supporter and the display panel comprise a bent portion bent along the extension driver.

3. The display device of claim 2 , wherein a thickness of the supporting plate is greater than that of the extending portion supporter.

4. The display device of claim 2 , further comprising an adhesive layer between the first metal thin film layer and the second metal thin film layer.

5. The display device of claim 4 , wherein a thickness of each of the first metal thin film layer and the second metal thin film layer is greater than that of the adhesive layer.

6. The display device of claim 5 , wherein one of the first metal thin film layer and the second metal thin film layer comprises a first end portion adjacent to the supporting plate and a second end portion opposite from the first end portion, and

wherein the first end portion is connected to the supporting plate.

7. The display device of claim 6 , wherein the first end portion is disposed between the display panel and the supporting plate.

8. The display device of claim 7 , wherein the supporting plate comprises a plurality of protrusions,

wherein the first end portion has a plurality of grooves, and

wherein the protrusions and the grooves are configured to couple to one another.

9. The display device of claim 7 , further comprising an elasticity-applying unit connected to the second end portion.

10. The display device of claim 9 , wherein the elasticity-applying unit is connected to at least one of the first metal thin film layer and the second metal thin film layer, and

wherein the second end portion connected to the elasticity-applying unit does not overlap the display panel.

11. The display device of claim 2 , wherein the one of the first metal thin film layer and the second metal thin film layer comprises a first end portion adjacent to the supporting plate and a second end portion opposite from the first end portion, and

wherein the first end portion is connected to the supporting plate.

12. The display device of claim 11 , wherein the first end portion is between the display panel and the supporting plate.

13. The display device of claim 11 , further comprising an elasticity-applying unit connected to the second end portion.

14. The display device of claim 13 , wherein the elasticity-applying unit is connected to at least one of the first metal thin film layer and the second metal thin film layer, and

wherein the elasticity-applying unit overlaps the display panel.

15. A display device comprising:

a display panel comprising a first region and a second region adjacent to the first region and being extendable;

a supporting plate configured to support the first region of the display panel and being inflexible; and

an extending portion supporter configured to support the second region of the display panel and being deformable,

wherein the extending portion supporter comprises a first metal thin film layer and a second metal thin film layer overlapping each other, and

wherein portions of the first metal thin film layer and the second metal thin film layer are between the display panel and the supporting plate.

16. The display device of claim 15 , further comprising an adhesive layer between the first metal thin film layer and the second metal thin film layer.

17. The display device of claim 16 , further comprising an elasticity-applying unit connected to an end portion of at least one of the first metal thin film layer and the second metal thin film layer.

18. The display device of claim 17 , wherein the end portion of the at least one of the first metal thin film layer and the second metal thin film layer connected to the elasticity-applying unit does not overlap with the display panel.

19. The display device of claim 15 , further comprising an elasticity-applying unit connected to an end portion of at least one of the first metal thin film layer and the second metal thin film layer.

20. The display device of claim 19 , wherein the end portion of at least one of the first metal thin film layer and the second metal thin film layer connected to the elasticity-applying unit does not overlap with the display panel.