Flexible display device

Patent metadata

Field	Value
Publication number	US-10950824-B2
Application number	US-202016882401-A
Country	US
Kind code	B2
Filing date	May 22, 2020
Priority date	Oct 12, 2016
Publication date	Mar 16, 2021
Grant date	Mar 16, 2021

Abstract

A flexible display device includes: a display panel capable of being bent with respect to a folding line; and a metal plate disposed on the display panel and capable of being bent with respect to the folding line. The metal plate has a plurality of holes disposed on each side of the folding line, the plurality of holes being formed in a zigzag pattern with respect to the folding line.

First claim

What is claimed is:

1. A flexible display device comprising:
a display panel capable of being bent with respect to a line; and
a metal plate disposed on the display panel and capable of being bent with respect to the line,
wherein the metal plate comprises;
a first planar portion;
a second planar portion; and
a bending portion between the first planar portion and the second planar portion and adjoining a first boundary of the first planar portion and a second boundary of the second planar portion,

wherein the metal plate has a plurality of holes substantially overlapping the display panel, and
the plurality of holes comprises:
a first plurality of holes adjacent to the first boundary; and
a second plurality of holes adjacent to the second boundary, and
each of the first plurality of holes does not overlap any of the second plurality of holes when folded.

2. The flexible display device as claimed in claim 1 , wherein each of the plurality of holes has an elliptical shape in a plan view.

3. The flexible display device as claimed in claim 2 , wherein the elliptical shape has a major axis parallel to the line.

4. The flexible display device as claimed in claim 1 , wherein a distance between the first plurality of holes and the first boundary is the same as a distance between the second plurality of holes and the second boundary.

5. The flexible display device as claimed in claim 4 , wherein the first plurality of holes are disposed at the first boundary; and
the second plurality of holes are disposed at the second boundary.

6. The flexible display device as claimed in claim 1 , wherein the first plurality of holes are disposed at the first planar portion; and
the second plurality of holes are disposed at the second planar portion.

7. The flexible display device as claimed in claim 1 , wherein the width of the bending portion defined by a distance between the first boundary and the second boundary is greater than or equal to about 0.1 mm and less than or equal to about 10 mm.

8. The flexible display device as claimed in claim 1 , wherein the first plurality of holes comprises:
a third plurality of holes arranged along a first direction parallel to the first boundary; and
a fourth plurality of holes arranged along the first direction and spaced apart from the third plurality of holes in second direction perpendicular to the first direction, and
wherein the second plurality of holes comprises:
a fifth plurality of holes arranged along the first direction; and
a sixth plurality of holes arranged along the first direction and spaced apart from the fifth plurality of holes in the second direction.

9. The flexible display device as claimed in claim 8 , wherein each of the third plurality of holes is disposed between adjacent two holes of the third plurality of holes in the first direction.

10. The flexible display device as claimed in claim 8 , wherein each of the third plurality of holes overlaps one of the fourth plurality of holes in the second direction.

11. The flexible display device as claimed in claim 1 , wherein the metal plate comprises a high modulus material.

12. The flexible display device as claimed in claim 1 , wherein the metal plate comprises at least one selected from the group consisting of: copper (Cu), invar, nobinite, stainless steel, and alloys thereof.

13. The flexible display device as claimed in claim 1 , wherein the metal plate has a substantially same shape as a shape of the display panel in a plan view.

14. The flexible display device as claimed in claim 1 , further comprising a light blocking layer disposed between the display panel and the metal plate.

15. The flexible display device as claimed in claim 1 , further comprising a cushion layer disposed between the display panel and the metal plate.

16. The flexible display device as claimed in claim 1 , further comprising a touch sensor disposed on the display panel.

17. The flexible display device as claimed in claim 1 , further comprising a polarizer disposed on the display panel.

18. The flexible display device as claimed in claim 1 , wherein the display panel is bent inwardly with respect to an area on which an image is displayed.

19. The flexible display device as claimed in claim 1 , wherein the display panel is bent outwardly with respect to an area on which an image is displayed.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sebong
• Kim Sangjae
• Kim Younjoon
• Lee Solbi
• Jeong Gyeongho

Classifications

• H04M1/0268

  including a flexible display panel · CPC title

• H10W42/20 Primary

  protecting against electromagnetic or particle radiation, e.g. light, X-rays, gamma-rays or electrons · CPC title

• H10K59/8794

  Arrangements for heating and cooling · CPC title

• H10K59/8792

  comprising light absorbing layers, e.g. black layers · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title