Stretchable display device and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-9894734-B2
Application number	US-201514803267-A
Country	US
Kind code	B2
Filing date	Jul 20, 2015
Priority date	Jan 15, 2015
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A stretchable display device includes a display panel made of a stretchable material, a fastening structure fastened to an edge of the display panel, and a fastening fixing part fixed to the fastening structure and integrally connected to the edge of the display panel.

First claim

What is claimed is:

1. A stretchable display device, comprising:
a display panel made of a stretchable material;
a fastening structure fastened to an edge of the display panel, the fastening structure including an inlet through which the edge of the display panel passes and an inner region connected to the inlet; and
a fastening fixing part fixed to the fastening structure and integrally connected to the edge of the display panel.

2. The stretchable display device as claimed in claim 1 , wherein:
the display panel includes a stretchable substrate made of a stretchable material, and
the fastening fixing part is integrally connected to the stretchable substrate.

3. The stretchable display device as claimed in claim 2 , wherein:
the fastening fixing part is made of a same material as the stretchable substrate.

4. The stretchable display device as claimed in claim 3 , wherein:
the stretchable substrate and the fastening fixing part are made of poly dimethyl siloxane (PDMS).

5. The stretchable display device as claimed in claim 1 , wherein:
the inlet of the fastening structure has a cross sectional area smaller than that of the inner region of the fastening structure.

6. The stretchable display device as claimed in claim 5 , wherein:
the display panel includes a stretchable substrate made of a stretchable material, and
the fastening fixing part is made of a same material as the stretchable substrate and is located in the inner region of the fastening structure.

7. The stretchable display device as claimed in claim 6 , wherein:
a hardness of the fastening fixing part is greater than a hardness of the stretchable substrate.

8. The stretchable display device as claimed in claim 6 , wherein:
the fastening fixing part is integrally connected to two edges of the stretchable substrate along a stretchable direction of the stretchable substrate and is provided in the inner region of the fastening structure.

9. The stretchable display device as claimed in claim 5 , wherein:
the fastening structure includes a fixing protrusion that fixes the fastening fixing part in the inner region.

10. The stretchable display device as claimed in claim 5 , wherein:
the fastening structure includes a fixed surface having an inner cross sectional area that gradually decreases from the inner region toward the inlet to fix the fastening fixing part.

11. A method for manufacturing a stretchable display panel, comprising:
injecting a liquefied stretchable material into a mold and hardening the liquefied stretchable material such that a stretchable substrate is formed by injection molding;
manufacturing the stretchable display panel by forming a pixel unit and a driver on the stretchable substrate;
providing a fastening structure having an inlet and an inner region, injecting a liquefied stretchable material into the inner region of the fastening structure, and inserting an edge portion of the stretchable substrate into the inner region through the inlet; and
hardening the liquefied stretchable material and forming a fastening fixing part in an inner region of the fastening structure by molding.

12. The method as claimed in claim 11 , wherein:
in forming the fastening fixing part, an edge of the stretchable substrate is integrally connected to the fastening fixing part.

13. The method as claimed in claim 11 , wherein:
in forming the stretchable substrate and in forming the fastening fixing part, a poly dimethyl siloxane (PDMS) is used as the liquefied stretchable material.

14. The method as claimed in claim 11 , wherein:
a cross sectional area of the inlet of the fastening structure is larger than that of the inner region of the fastening structure.

15. The method as claimed in claim 11 , wherein:
in forming the stretchable substrate, the mold is heated at a predetermined temperature to harden the stretchable material.

16. The method as claimed in claim 15 , wherein:
in forming the fastening fixing part, the fastening structure is heated at a temperature higher than a heating temperature of the mold in forming the stretchable substrate.

17. The method as claimed in claim 16 , wherein:
forming the fastening fixing part by molding provides the fastening fixing part with a hardness greater than that of the stretchable substrate.

18. The method as claimed in claim 11 , wherein:
in forming the stretchable substrate, the stretchable material is hardened at room temperature.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Young Chan

Classifications

• H05B33/145

  Arrangements of the electroluminescent material · CPC title

• H05B33/22 Primary

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

• H05B33/10

  Apparatus or processes specially adapted to the manufacture of electroluminescent light sources · CPC title

• G06F1/1601

  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 title

• G09F9/301 Primary

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