Stretchable display device

Patent metadata

Field	Value
Publication number	US-9936563-B2
Application number	US-201615388858-A
Country	US
Kind code	B2
Filing date	Dec 22, 2016
Priority date	Jan 9, 2015
Publication date	Apr 3, 2018
Grant date	Apr 3, 2018

Abstract

A stretchable display device includes: a stretchable substrate; a plurality of light emitting units on the stretchable substrate; and a plurality of reflective mirrors positioned to correspond to the light emitting units, respectively, and reflecting light emitted from the light emitting units, respectively.

First claim

What is claimed is:

1. A stretchable display device, comprising:
a stretchable substrate;
a plurality of light emitting units on the stretchable substrate; and
a plurality of reflective mirrors positioned to correspond to the light emitting units, respectively, and reflecting light emitted from the light emitting units, respectively,
wherein a distance between centers of neighboring reflective mirrors of the plurality of reflective mirrors varies in accordance with whether the stretchable substrate is in a stretched state or an unstretched state.

2. The stretchable display device as claimed in claim 1 , wherein a distance between centers of neighboring light emitting units of the plurality of light emitting units varies in accordance with whether the stretchable substrate is in a stretched state or an unstretched state.

3. The stretchable display device as claimed in claim 2 , wherein the centers of neighboring reflective mirrors are coincident to the centers of neighboring light emitting units.

4. The stretchable display device as claimed in claim 1 , wherein the reflective mirrors are in the stretchable substrate.

5. The stretchable display device as claimed in claim 1 , wherein the reflective mirrors have curved reflective sides facing the light emitting units.

6. The stretchable display device as claimed in claim 5 , wherein the reflective sides are concave with respect to the light emitting units.

7. The stretchable display device as claimed in claim 5 , wherein the reflective sides are convex toward the light emitting units.

8. The stretchable display device as claimed in claim 1 , wherein:
the light emitting units are respectively arranged in a matrix on the stretchable substrate and make an image, and
the reflective mirrors are respectively arranged in a matrix on the stretchable substrate.

9. The stretchable display device as claimed in claim 1 , wherein the light emitting units include an organic light emitting element.

10. The stretchable display device as claimed in claim 1 1 , wherein the reflective mirrors are larger than the light emitting units.

11. The stretchable display device as claimed in claim 10 , wherein the reflective mirrors extend beyond the light emitting units in two directions orthogonal to a stacking direction of the light emitting units.

12. The stretchable display device as claimed in claim 1 , wherein the reflective mirrors completely overlap the corresponding light emitting units.

13. The stretchable display device as claimed in claim 1 , wherein the reflective mirrors are spaced apart from the light emitting units.

14. A stretchable display device, comprising:
a stretchable substrate;
a plurality of light emitting units on the stretchable substrate; and
a plurality of reflective mirrors positioned to correspond to the light emitting units, respectively, and reflecting light emitted from the light emitting units, respectively,
wherein a distance between vertexes of neighboring reflective mirrors of the plurality of reflective mirrors varies in accordance with whether the stretchable substrate is in a stretched state or an unstretched state.

Assignees

• Samsung Display Co Ltd

Inventors

• Shim Hong Shik
• Kim Young Chan
• Choi Hae Yun

Classifications

• G02B26/0825

  the reflecting element being a flexible sheet or membrane, e.g. for varying the focus (flexible mirrors for cosmetic use A45D42/24) · CPC title

• H05B33/14

  characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source} · CPC title

• H05B33/22 Primary

  characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers · CPC title

• G09F9/301 Primary

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

• G09F9/335

  being organic light emitting diodes [OLED] · CPC title