Display device

Patent metadata

Field	Value
Publication number	US-10481640-B2
Application number	US-201715613316-A
Country	US
Kind code	B2
Filing date	Jun 5, 2017
Priority date	Jun 10, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A display device including a display panel that displays an image, and a supporting layer positioned on one surface of the display panel. The supporting layer includes a plurality of magnets that are engageable with each other.

First claim

What is claimed is:

1. A display device, comprising:
a display panel that displays an image; and
a supporting layer positioned on one surface of the display panel,
wherein:
the supporting layer includes a plurality of magnets that are engageable with each other,
the plurality of magnets include a first magnet including a groove and a second magnet including a protrusion,
the display device is changeable between a rolled state and an unrolled state, wherein in the unrolled state, the protrusion of the second magnet is inserted into the groove of the first magnet,
and the supporting layer is disposed continuously along a direction parallel to a rolling axis of the display device.

2. The display device as claimed in claim 1 , wherein:
the first magnet and the second magnet are elongated in the direction parallel to a rolling axis of the display device.

3. The display device as claimed in claim 2 , wherein:
the groove of the first magnet and the protrusion of the second magnet are continuously present along an entire length of the first magnet and the second magnet.

4. The display device as claimed in claim 2 , wherein:
the groove of the first magnet and the protrusion of the second magnet are discontinuously present throughout an entire length of the first magnet and the second magnet.

5. The display device as claimed in claim 1 , further comprising
an elastic gel layer between the display panel and the supporting layer.

6. The display device as claimed in claim 5 , wherein
the elastic gel layer includes a hybrid gel of a polyacrylamide gel and an alginate gel.

7. The display device as claimed in claim 5 , wherein:
the elastic gel layer includes a modified gel that provides adhesiveness to a surface of the elastic gel layer.

8. The display device as claimed in claim 5 , wherein:
the elastic gel layer has toughness of about 5,000 to about 9,000 J/m 2 .

9. The display device as claimed in claim 5 , wherein:
the elastic gel layer includes an upper elastic gel layer and a lower elastic gel layer, each being between the display panel and the supporting layer, and
a rubber layer is between the display panel and the lower elastic gel layer.

10. The display device as claimed in claim 9 , wherein:
the upper elastic gel layer is between the display panel and the rubber layer.

11. The display device as claimed in claim 10 , wherein:
the upper elastic gel layer includes a hybrid gel of a polyacrylamide gel and an alginate gel.

12. The display device as claimed in claim 10 , wherein:
a surface of the upper elastic gel layer includes a modified gel that has adhesiveness.

13. The display device as claimed in claim 1 , further comprising:
a rubber layer on the display panel.

14. The display device as claimed in claim 13 , further comprising:
a window layer on the rubber layer.

15. The display device as claimed in claim 1 , further comprising:
an elastic gel layer on the display panel; and
a window layer on the elastic gel layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Tae Woong
• Koo Hyun Woo

Classifications

• G09F9/301 Primary

  flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H01L51/0097

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title