Foldable electronic apparatus having display panel with variable curvature

1. An electronic apparatus comprising:

a flexible display panel;

a first cover and a second cover, each configured to support a rear surface of the flexible display panel; and

a first slider and a second slider installed on the first cover and the second cover, respectively,

wherein the first slider and the second slider are configured to vary a curvature of the flexible display panel by sliding along the first cover and the second cover, respectively, and

wherein the curvature of the flexible display panel is varied according to the sliding of the first slider and the second slider while an angle between the first cover and the second cover is maintained.

2. The apparatus as claimed in claim 1 , wherein the first cover and the second cover are connected by a hinge member.

3. The apparatus as claimed in claim 2 , wherein the first slider is connected to a first side of the flexible display panel and the second slider is connected to a second side of the flexible display panel, and each of the first slider and the second slider is configured to slide in a first direction of approaching the hinge member and in a second direction of receding from the hinge member.

4. The apparatus as claimed in claim 3 , wherein in response to at least one of the first slider and the second slider being moved in the first direction, the curvature of the flexible display panel decreases, and in response to at least one of the first slider and the second slider being moved in the second direction, the curvature of the flexible display panel increases.

5. The apparatus as claimed in claim 3 , wherein the first slider is slidably engaged with a side part of the first cover, and the second slider is slidably engaged with a side part of the second cover.

6. The apparatus as claimed in claim 5 , wherein the first slider comprises a first guide and a second guide, which are configured to be guided to an upper end of the first cover and a lower end of the first cover, respectively,

wherein the second slider comprises a third guide and a fourth guide, which are configured to be guided to an upper end of the second cover and a lower end of the second cover, respectively.

7. The apparatus as claimed in claim 5 , further comprising:

a first lock configured to fix a sliding position of the first slider; and

a second lock configured to fix a sliding position of the second slider.

8. The apparatus as claimed in claim 7 , wherein the first lock comprises at least one locking protrusion configured to be disposed on one of the first slider and the first cover and at least one locking groove configured to be disposed on the other of the first slider and the first cover,

wherein the second lock comprises at least one locking protrusion configured to be disposed on one of the second slider and the second cover, and at least one locking groove configured to be formed on the other of the second slider and the second cover.

9. The apparatus as claimed in claim 1 , wherein the first cover comprises a first supporter and the second cover comprises a second supporter, and the first supporter and the second supporter are configured to support a fold of the flexible display panel.

10. The apparatus as claimed in claim 9 , wherein in response to the first cover and the second cover being folded, the first cover and the second cover have an escape groove for the first supporter and the second supporter to escape inside the first cover and the second cover, respectively, such that the fold of the flexible display panel maintains the curvature.

11. An electronic apparatus comprising:

a flexible display panel;

a first cover, a second cover, and a third cover, each configured to support a rear surface of the flexible display panel; and

a first slider and a second slider configured to be slidably engaged with an end portion of each of the first cover and the second cover, respectively, which are located in an outer region,

wherein the first slider and the second slider are configured to vary a curvature of the flexible display panel by sliding along the first cover and the second cover, respectively, and

wherein the curvature of the flexible display panel is varied according to the sliding of the first slider and the second slider while an angle between the first cover and the third cover is maintained and an angle between the second cover and the third cover is maintained.

12. The apparatus as claimed in claim 11 , wherein the first cover, the second cover, and the third cover are connected by a plurality of hinge members.

13. The apparatus as claimed in claim 12 , wherein the first cover, the second cover, and the third cover comprise a plurality of supporters configured to correspond to each of the plurality of hinge members to support a fold of the flexible display panel.

14. The apparatus as claimed in claim 13 , wherein in response to the first cover, the second cover, and the third cover being folded, the first cover, the second cover, and the third cover have an escape groove for the plurality of supporters to escape inside the first cover, the second cover, and the third cover, respectively, such that the fold of the flexible display panel maintains the curvature.

15. The apparatus as claimed in claim 11 , wherein the first slider is connected to a first side of the flexible display and the second slider is connected to a second side of the flexible display panel, and each of the first slider and the second slider is configured to slide in a first direction of approaching an adjacent cover and in a second direction of receding from the adjacent cover, respectively.

16. The apparatus as claimed in claim 15 , wherein in response to at least one of the first slider and the second slider being moved in the first direction, the curvature of the flexible display panel decreases, and in response to at least one of the first slider or the second slider being moved in the second direction, the curvature of the flexible display panel increases.

17. The apparatus as claimed in claim 15 , wherein the first slider comprises a first guide and a second guide, which are configured to be guided to an upper end of the first cover and a lower end of the first cover, respectively,

wherein the second slider comprises a third guide and a fourth guide, which are configured to be guided to an upper end of the second cover and a lower end of the second cover, respectively.

18. The apparatus as claimed in claim 15 , further comprising:

a first lock configured to fix a sliding position of the first slider; and

a second lock configured to fix a sliding position of the second slider.

19. The apparatus as claimed in claim 18 , wherein the first lock comprises at least one locking protrusion configured to be disposed on one of the first slider and the first cover and at least one locking groove configured to be disposed on the other of the first slider and the first cover,

wherein the second lock comprises at least one locking protrusion configured to be disposed on one of the second slider and the second cover and at least one locking groove configured to be formed on the other of the second slider and the second cover.

20. The apparatus as claimed in claim 11 , wherein in response to the curvature of the flexible display panel reaching a predetermined curvature, the flexible display panel displays a User Interface (UI) corresponding to the predetermined curvature.

21. The apparatus as claimed in claim 11 , wherein in response to a Graphical User Interface (GUI) displayed in the flexible display panel being selected, the flexible display panel has a predetermined curvature to execute an application corresponding to the GUI by sliding along the first cover and the second cover and output an execution screen of the application corresponding to the GUI.

22. The apparatus as claimed in claim 21 , wherein in response to the first cover and the second cover being folded, the flexible display panel has a surface in which a part protrudes outside, and the protruded part displays a User Interface (UI).