Flexible display apparatus

Patent metadata

Field	Value
Publication number	US-10243164-B2
Application number	US-201715596929-A
Country	US
Kind code	B2
Filing date	May 16, 2017
Priority date	May 18, 2016
Publication date	Mar 26, 2019
Grant date	Mar 26, 2019

Abstract

A flexible display apparatus includes a substrate having a bending portion, a display over the substrate, and a cover over the substrate and covering the display. The cover includes a first film having a first surface and a second surface opposite the first surface, a second film over the first film, and an adhesive layer between the first film and the second film and attaching the first film to the second film. The first film includes at least one division line in at least some regions thereof in a direction from the first surface toward the second surface.

First claim

What is claimed is:

1. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film, and
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, wherein a length of the at least one division line is less than a thickness of the first film.

2. The flexible display apparatus of claim 1 , wherein the at least one division line is at a position corresponding to the bending portion.

3. The flexible display apparatus of claim 1 , wherein the at least one division line comprises two or more division lines throughout the first film.

4. The flexible display apparatus of claim 1 , wherein the length of the at least one division line is half the thickness of the first film.

5. The flexible display apparatus of claim 1 , wherein the first film is a buffer film.

6. The flexible display apparatus of claim 5 , wherein the first film comprises an elastomer-based material.

7. The flexible display apparatus of claim 6 , wherein the first film comprises at least one selected from the group consisting of urethane, acrylate, and silicone.

8. The flexible display apparatus of claim 5 , wherein the first film comprises a plurality of air pores and has a foam density of about 0.3 g/cm 3 to about 0.7 g/cm 3 .

9. The flexible display apparatus of claim 5 , wherein the first film has a thickness of about 50 μm to about 150 μm.

10. The flexible display apparatus of claim 1 , wherein the at least one division line is formed from the first surface toward the second surface of the first film by a blanking process.

11. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film, and
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, each division line of the at least one division line being a cut in the first film that divides the first film into regions, wherein the at least one division line comprises two or more division lines, and
an interval between the two or more division lines at a position corresponding to the bending portion is different from an interval between the two or more division lines at other positions.

12. The flexible display apparatus of claim 11 , wherein the interval between the two or more division lines at the position corresponding to the bending portion is less than the interval between the two or more division lines at the other positions.

13. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film, and
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, each division line of the at least one division line being a cut in the first film that divides the first film into regions, wherein the first film further comprises a healing agent.

14. The flexible display apparatus of claim 13 , wherein, when the first film is torn, a healing material discharged from the healing agent is cross-linked to a material constituting the first film.

15. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film, and
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, each division line of the at least one division line being a cut in the first film that divides the first film into regions, wherein the at least one division line comprises two or more division lines and an interval between the two or more division lines is in a range from about 10 μm to about 1 mm.

16. A flexible display apparatus comprising:
a substrate having a bending portion;
a display over the substrate; and
a cover over the substrate and covering the display,
wherein the cover comprises:
a first film having a first surface and a second surface opposite the first surface;
a second film over the first film; and
an adhesive layer between the first film and the second film and attaching the first film to the second film,
the first film comprises at least one division line in at least some regions thereof in a direction from the first surface toward the second surface, each division line of the at least one division line being a cut in the first film that divides the first film into regions; and
a third film under the first film,
wherein the second film is a light blocking film and the third film is a heat dissipation film.

Assignees

• Samsung Display Co Ltd

Inventors

• Oh Hyunjoon
• Kim Boa
• Kim Sanghoon
• Park Sangil
• Shin Heonjung
• Oh Hyejin
• Lee Jeoungsub
• Choi Minhoon

Classifications

• H01L51/5281

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L51/5237 Primary

  Electricity · mapped topic

• H01L2251/5338

  Electricity · mapped topic

• H01L51/0097

  Electricity · mapped topic