Foldable device

1. A foldable device comprising:

a flexible display comprising a first portion, a second portion, and a third portion disposed between the first portion and the second portion; and

a body comprising a first support portion which supports the first portion of the flexible display, a second support portion which supports the second portion of the flexible display, and a third support portion which supports the third portion of the flexible display,

wherein the third support portion comprises a first rotation axis which connects the first support portion to the third support portion, and a second rotation axis which connects the second support portion to the third support portion, and

wherein a distance between the first support portion and the first rotation axis and a distance between the second support portion and the second rotation axis change according to rotation of the first support portion and the second support portion.

2. The foldable device as claimed in claim 1 , further comprising:

at least one slot hole which shifts the first rotation axis and the second rotation axis along an inner surface of the at least one slot hole when the first support portion and the second support portion rotate.

3. The foldable device as claimed in claim 2 , wherein the first rotation axis and the second rotation axis allow the first support portion and the second support portion to rotate with respect to the third support portion when the flexible display changes from an open state to a closed state, and

wherein the at least one slot hole is disposed on at least one of the first support portion and the third support portion, and at least one of the second support portion and the third support portion and is rotatably coupled with the first rotation axis and the second rotation axis.

4. The foldable device as claimed in claim 3 , wherein the third support portion comprises a first support wing rotatably connected to the first support portion and a second support wing rotatably connected to the second support portion.

5. The foldable device as claimed in claim 4 , wherein the first rotation axis is disposed on both sides of the first support wing, the second rotation axis is disposed on both sides of the second support wing, and the at least one slot hole comprises a first slot hole disposed on the first support portion to receive the first rotation axis of the first support wing and a second slot hole disposed on the second support portion to receive the second rotation axis of the second support wing.

6. The foldable device as claimed in claim 5 , wherein the first slot hole and the second slot hole have a shape of a straight line.

7. The foldable device as claimed in claim 4 , wherein a fixing member which fixes the third portion of the flexible display is fixed on an upper surface of the first support wing and the second support wing.

8. The foldable device as claimed in claim 7 , wherein the fixing member comprises a double-sided tape and an adhesive.

9. The foldable device as claimed in claim 3 , further comprising:

a first reinforcing plate that covers a part of the first support portion and the third support portion, and supports a part of the flexible display; and

a second reinforcing plate that covers a part of the second support portion and the third support portion, and supports a part of the flexible display.

10. The foldable device as claimed in claim 9 , wherein the first reinforcing plate and the second reinforcing plate are fixed on a rear surface of the flexible display.

11. The foldable device as claimed in claim 4 , wherein the third support portion further comprises a central support member which supports a central portion of the third portion of the flexible display.

12. The foldable device as claimed in claim 1 , wherein the first support portion and the second support portion move away from the first rotation axis and the second rotation axis and then move closer to the first rotation axis and the second rotation axis, respectively, according to the rotation of the first support portion and the second support portion.

13. A foldable device comprising:

a flexible display comprising a first portion, a second portion, and a third portion disposed between the first portion and the second portion;

a body comprising a first support portion which supports the first portion of the flexible display, a second support portion which supports the second portion of the flexible display, and a third support portion which supports the third portion of the flexible display, wherein the third support portion comprises a first rotation axis which connects the first support portion to the third support portion, and a second rotation axis which connects the second support portion to the third support portion; and

at least one slot hole which shifts the first rotation axis and the second rotation axis along an inner surface of the at least one slot hole when the first support portion and the second support portion rotate,

wherein the first rotation axis and the second rotation axis allow the first support portion and the second support portion to rotate with respect to the third support portion when the flexible display changes from an open state to a closed state,

wherein the at least one slot hole is disposed on at least one of the first support portion and the third support portion, and at least one of the second support portion and the third support portion and is rotatably coupled with the first rotation axis and the second rotation axis,

wherein the third support portion comprises a first support wing rotatably connected to the first support portion and a second support wing rotatably connected to the second support portion,

wherein the at least one slot hole comprises a first slot hole disposed on both sides of the first support wing and a second slot hole disposed on both sides of the second support wing, and

wherein the first rotation axis is disposed on the first support portion and inserted to the first slot hole of the first support wing, and the second rotation axis is disposed on the second support portion and inserted to the second slot hole of the second support wing.

14. The foldable device as claimed in claim 13 , wherein the first slot hole and the second slot hole have a curved shape.

15. A foldable device comprising:

a flexible display comprising a first portion, a second portion, and a third portion disposed between the first portion and the second portion;

a body comprising a first support portion which supports the first portion of the flexible display, a second support portion which supports the second portion of the flexible display, and a third support portion which supports the third portion of the flexible display, wherein the third support portion comprises a first rotation axis which connects the first support portion to the third support portion, and a second rotation axis which connects the second support portion to the third support portion; and

at least one slot hole which shifts the first rotation axis and the second rotation axis along an inner surface of the at least one slot hole when the first support portion and the second support portion rotate,

wherein the first rotation axis and the second rotation axis allow the first support portion and the second support portion to rotate with respect to the third support portion when the flexible display changes from an open state to a closed state,

wherein the at least one slot hole is disposed on at least one of the first support portion and the third support portion, and at least one of the second support portion and the third support portion and is rotatably coupled with the first rotation axis and the second rotation axis,

wherein the third support portion comprises a first support wing rotatably connected to the first support portion and a second support wing rotatably connected to the second support portion,

wherein the at least one slot hole comprises a first slot hole disposed on both sides of the first support wing, a second slot hole disposed on both sides of the second support wing, a third slot hole disposed on the first support portion which faces the first slot hole of the first support wing, and a fourth slot hole disposed on the second support portion which faces the second slot hole of the second support wing, and

wherein the first rotation axis is inserted to the first slot hole of the first support wing and the third slot hole of the first support portion, and the second rotation axis is inserted to the second slot hole of the second support wing and the fourth slot hole of the second support portion.

16. A foldable device comprising:

a flexible display comprising a first portion, a second portion, and a third portion disposed between the first portion and the second portion;

a body comprising a first support portion which supports the first portion of the flexible display, a second support portion which supports the second portion of the flexible display, and a third support portion which supports the third portion of the flexible display, wherein the third support portion comprises a first rotation axis which connects the first support portion to the third support portion, and a second rotation axis which connects the second support portion to the third support portion; and

at least one slot hole which shifts the first rotation axis and the second rotation axis along an inner surface of the at least one slot hole when the first support portion and the second support portion rotate,

wherein the first rotation axis and the second rotation axis allow the first support portion and the second support portion to rotate with respect to the third support portion when the flexible display changes from an open state to a closed state,

wherein the at least one slot hole is disposed on at least one of the first support portion and the third support portion, and at least one of the second support portion and the third support portion and is rotatably coupled with the first rotation axis and the second rotation axis,

wherein the third support portion comprises a first support wing rotatably connected to the first support portion and a second support wing rotatably connected to the second support portion, and

wherein the foldable device further comprises first and second guide slots and first and second support arms which allow the first support wing and the second support wing to move, according to movement of the first support portion and the second support portion, between a support position which supports that the third portion of the flexible display is in the same plane as the first portion and the second portion, and a receiving position which forms a receiving space to receive a curved third portion of the flexible display between the first support portion and the second support portion.

17. The foldable device as claimed in claim 16 , wherein the first and second guide slots move along with the first support portion and the second support portion, and the first and second support arms move by the first and second guide slots.

18. The foldable device as claimed in claim 17 , wherein the first and second support arms comprise first and second guide pins which pass through the first and second guide slots and are extended to a bottom of the first support wing and the second support wing.