DISPLAY DEVICE

• US 20200135064A1
• Filed: 09/11/2019
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: LEE, Jaesang, KIM, Seulgi, LEE, Kangwoo
• Granted Patent: US 11,107,374 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/1601 Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays constructional details related to flat displays integrated in a portable computer, e.g. laptop, handheld computer G06F1/1637; constructional details related to television receivers H04N5/64
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 1/1684 Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
• CPC Class Codes: G09F 9/301 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

Abstract

A display device includes a display panel including first and second expansion portions, and a center portion between the first and second expansion portions; a first outer frame connected to the first expansion portion; a second outer frame connected to the second expansion portion; an intermediate frame disposed between the first and second outer frames, and overlapping the center portion of the display panel; a first guide shaft on the intermediate frame; a first motor connected to the first guide shaft; a first slide connected to the first guide shaft and configured to move along the first guide shaft; a first connection portion rotatably connected to one side of the first slide and one end portion of the first outer frame; and a second connection portion rotatably connected to another side of the first slide and one end portion of the second outer frame.

Claims

1. A display device comprising:

a display panel comprising a first expansion portion, a second expansion portion, and a center portion between the first expansion portion and the second expansion portion;

a first outer frame connected to the first expansion portion of the display panel;

a second outer frame connected to the second expansion portion of the display panel;

an intermediate frame between the first outer frame and the second outer frame, and overlapping the center portion of the display panel;

a first guide shaft on the intermediate frame;

a first motor connected to the first guide shaft;

a first slide connected to the first guide shaft and configured to move along the first guide shaft;

a first connection portion rotatably connected to one side of the first slide and one end portion of the first outer frame; and

a second connection portion rotatably connected to another side of the first slide and one end portion of the second outer frame.

2. The display device of claim 1, further comprising a first screw thread at an outer circumferential surface of the first guide shaft.

3. The display device of claim 2, further comprising a second screw thread at an inner wall of a hole of the first slide surrounding a portion of the outer circumferential surface of the first guide shaft.

4. The display device of claim 1, wherein the first motor is on the intermediate frame.

5. The display device of claim 1, further comprising:

a first roller at a first housing of the first outer frame, and connected to the first expansion portion of the display panel; and

a second roller at a second housing of the second outer frame, and connected to the second expansion portion of the display panel.

6. The display device of claim 5, further comprising at least one of a second motor connected to the first roller, or a third motor connected to the second roller.

7. The display device of claim 6, wherein the second motor is at the first housing of the first outer frame, and the third motor is at the second housing of the second outer frame.

8. The display device of claim 1, wherein the intermediate frame comprises:

a base portion; and

a support portion on the base portion and supporting the first guide shaft.

9. The display device of claim 8, wherein the support portion has a hole surrounding an end portion of the first guide shaft.

10. The display device of claim 9, further comprising a bearing between an inner wall of the hole and the end portion of the first guide shaft.

11. The display device of claim 1, further comprising:

a second guide shaft on the intermediate frame;

a fourth motor connected to the second guide shaft;

a second slide connected to the second guide shaft and configured to move along the second guide shaft;

a third connection portion rotatably connected to one side of the second slide and another end portion of the first outer frame; and

a fourth connection portion rotatably connected to another side of the second slide and another end portion of the second outer frame.

12. The display device of claim 11, wherein the first motor and the fourth motor are configured to provide a same rotational force to the first guide shaft and the second guide shaft, respectively.

13. The display device of claim 11, wherein the first motor and the fourth motor are configured to provide different rotational forces to the first guide shaft and the second guide shaft, respectively.

14. A display device comprising:

a display panel comprising a first expansion portion, a second expansion portion, and a center portion between the first expansion portion and the second expansion portion;

a first outer frame connected to the first expansion portion of the display panel;

a second outer frame connected to the second expansion portion of the display panel;

an intermediate frame between the first outer frame and the second outer frame, and overlapping the center portion of the display panel;

a first guide shaft and a second guide shaft on the intermediate frame;

a first motor connected to the first guide shaft and the second guide shaft through at least one gear;

a first slide connected to the first guide shaft and configured to move along the first guide shaft;

a second slide connected to the second guide shaft and configured to move along the second guide shaft;

a first connection portion rotatably connected to one side of the first slide and one end portion of the first outer frame;

a second connection portion rotatably connected to another side of the first slide and one end portion of the second outer frame;

a third connection portion rotatably connected to one side of the second slide and another end portion of the first outer frame; and

a fourth connection portion rotatably connected to another side of the second slide and another end portion of the second outer frame.

15. The display device of claim 14, wherein the at least one gear comprises:

a first gear connected to the first motor; and

a second gear meshed with the first gear and axially coupled to the first guide shaft and the second guide shaft.

16. The display device of claim 14, further comprising a first screw thread at an outer circumferential surface of the first guide shaft, and a second screw thread at an outer circumferential surface of the second guide shaft.

17. The display device of claim 16, further comprising:

a third screw thread at an inner wall of a hole of the first slide surrounding a portion of the outer circumferential surface of the first guide shaft; and

a fourth screw thread at an inner wall of a hole of the second slide surrounding a portion of the outer circumferential surface of the second guide shaft.

18. The display device of claim 14, wherein the first motor and the at least one gear are on the intermediate frame.

19. The display device of claim 14, further comprising:

a first roller at a first housing of the first outer frame, and connected to the first expansion portion of the display panel; and

a second roller at a second housing of the second outer frame, and connected to the second expansion portion of the display panel.

20. The display device of claim 19, further comprising at least one of a second motor connected to the first roller, or a third motor connected to the second roller.