Stretchable display device

• US 9,619,059 B2
• Filed: 11/10/2015
• Issued: 04/11/2017
• Est. Priority Date: 01/22/2015
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Sang-Il, Oh, Hyun Joon, Oh, Hye-Jin, Lee, Jeoung Sub, Choi, Min-Hoon
• Primary Examiner(s): Lee, Nicholas
• Application Number:
  US14/936,710
• Publication Number:
  US 20160216791A1
• Time in Patent Office: 518 Days
• Field of Search: None
• CPC Class Codes: G06F 1/16 Constructional details or arrangements
• CPC Class Codes: G06F 1/1652 the display being flexible, e.g. mimicking a sheet of paper, or rollable
• CPC Class Codes: G06F 2203/04102 Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means

Abstract

A stretchable display device, including a stretchable display panel to display images; and a window on a touch sensing layer, the window including a soft part and a plurality of hard parts attached on a surface of the soft part, the hard parts including an attachment portion attached to the soft part and a non-attachment portion not attached to the soft part.

Claims

1. A stretchable display device, comprising:

a stretchable display panel to display images; and

a window on a touch sensing layer,

the window including a soft part and a plurality of hard parts attached on a surface of the soft part, the hard parts including an attachment portion attached to the soft part and a non-attachment portion not attached to the soft part.

2. The stretchable display device as claimed in claim 1, wherein two or more hard parts are partially overlapped.

3. The stretchable display device as claimed in claim 2, wherein:

the non-attachment portion is overlapped, and

the attachment portion is not overlapped.

4. The stretchable display device as claimed in claim 1, wherein a plurality of reinforcing portions partially attached to the hard parts are on the hard parts.

5. The stretchable display device as claimed in claim 4, wherein the hard parts are on a same surface, and the reinforcing portion covers a plurality of the hard parts.

6. The stretchable display device as claimed in claim 1, wherein the hard parts are in a stripe form.

7. The stretchable display device as claimed in claim 1, wherein the hard parts are in a lattice form.

8. The stretchable display device as claimed in claim 1, wherein each of the hard parts has a form of a polygonal plate.

9. The stretchable display device as claimed in claim 1, wherein the hard parts are on a top surface of the soft part and between the soft part and the stretchable display panel.

10. The stretchable display device as claimed in claim 1, wherein:

the soft part includes a flexible material, and

each of the hard parts includes a material having greater hardness than that of the soft part.

11. The stretchable display device as claimed in claim 9, wherein the soft part includes a material with an elastic modulus of less than about 1 GPa.

12. The stretchable display device as claimed in claim 1, wherein the soft part includes one of an olefin-based elastomer, a urethane-based elastomer, or a polyester-based elastomer.

13. The stretchable display device as claimed in claim 1, wherein each of the hard parts includes one of a urethane acrylate, a boride based on a silicon substrate, a carbide based on a silicon substrate, aluminum nitride, silicon nitride, boron nitride, aluminum oxide, zirconium oxide, titanium oxide, beryllium oxide, or polysilazane.