Display device and electronic device including the same

Patent metadata

Field	Value
Publication number	US-11800652-B2
Application number	US-202117242834-A
Country	US
Kind code	B2
Filing date	Apr 28, 2021
Priority date	Aug 19, 2020
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

A display device including a display panel including a folding area and a non-folding area adjacent along a first direction, a support layer facing the display panel with a barrier layer therebetween, openings defined in the support layer and corresponding to the folding area, a cushion layer facing the display panel with the support layer therebetween, and a barrier adhesive layer between the barrier layer and the support layer, the barrier adhesive layer including a first barrier portion and a second barrier portion spaced apart from each other along the first direction with the plurality of openings of the support layer therebetween.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a folding area at which the display panel is foldable and a non-folding area which is adjacent to the folding area along a first direction;
a barrier layer facing the display panel;
a support layer facing the display panel with the barrier layer therebetween;
a plurality of openings which are defined in the support layer and correspond to the folding area of the display panel;
a cushion layer facing the display panel with the support layer therebetween; and
a barrier adhesive layer between the barrier layer and the support layer, the barrier adhesive layer comprising a first barrier portion and a second barrier portion spaced apart from each other along the first direction with the plurality of openings of the support layer therebetween.

2. The display device of claim 1 , wherein
the support layer faces both the folding area and the non-folding area, and along the first direction:
each of the cushion layer, the support layer and the barrier layer has a width,
the width of the cushion layer is less than the width of the support layer, and
the width of the barrier layer is less than the width of the support layer.

3. The display device of claim 1 , wherein
the cushion layer comprises a first cushion layer and a second cushion layer spaced apart from each other along the first direction by a gap, and
the gap by which the first cushion layer and the second cushion layer are spaced apart from each other corresponds to the folding area of the display panel.

4. The display device of claim 1 , wherein
each of the support layer and the cushion layer has an elastic modulus, and
the elastic modulus of the support layer is greater than the elastic modulus of the cushion layer.

5. The display device of claim 1 , wherein
each of the barrier adhesive layer and the barrier layer has a thickness, and
the thickness of the barrier adhesive layer is less than the thickness the barrier layer.

6. The display device of claim 1 , wherein the barrier layer comprises a colored polyimide film.

7. The display device of claim 1 , wherein the barrier layer comprises a light shielding material.

8. The display device of claim 1 , wherein along the first direction, the support layer extends further than the barrier layer.

9. The display device of claim 1 , wherein
each of the cushion layer and the barrier layer has a thickness, and
the thickness of the cushion layer is greater than the thickness of the barrier layer.

10. The display device of claim 1 , further comprising an upper adhesive layer between the display panel and the barrier layer,
wherein
the upper adhesive layer attaches the display panel to the barrier layer,
each of the upper adhesive layer and the barrier adhesive layer has a thickness, and
the thickness of the upper adhesive layer is greater than the thickness of the barrier adhesive layer.

11. The display device of claim 1 , wherein
the first barrier portion and the second barrier portion are spaced apart from each other along the first direction by a first distance,
along the first direction, the plurality of openings which correspond to the folding area of the display panel comprises a first opening closest to the non-folding area and a second opening furthest from the non-folding area,
the support layer comprises along the first direction:
a first sidewall which is closest to the non-folding area and defines the first opening,
a second sidewall which is furthest from the non-folding area and defines the second opening, and
a second distance between the first sidewall and the second sidewall, and

the first distance between the first barrier portion and the second barrier portion is greater than the second distance between the first sidewall and the second sidewall of the support layer.

12. The display device of claim 1 , wherein along the first direction:
the first barrier portion and the second barrier portion are spaced apart from each other by a distance,
the distance between the first barrier portion and the second barrier portion is greater than a width of an area in which the plurality of openings are defined.

13. The display device of claim 1 , wherein the non-folding area of the display panel comprises a display area,
further comprising:
a hole which corresponds to the display area and extends through the support layer, and
along the first direction, the cushion layer spaced apart from the hole which extends through the support layer.

14. An electronic device comprising:
a display panel comprising a foldable area at which the display panel is foldable;
a barrier layer facing the display panel;
a support layer which faces the display panel with the barrier layer therebetween and has a first elastic modulus,
a plurality of openings which are defined the support layer and correspond to the foldable area of the display panel; and
a cushion layer facing the display panel with the support layer therebetween, the cushion layer comprising:
a second elastic modulus lower than the first elastic modulus of the support layer, and
a first cushion layer and a second cushion layer spaced apart from each other at the foldable area of the display panel.

15. The electronic device of claim 14 , further comprising a barrier adhesive layer between the barrier layer and the support layer, the barrier adhesive layer comprising:
a first barrier adhesive layer between the barrier layer and the support layer; and
a second barrier adhesive layer between the barrier layer and the display panel,
wherein the first barrier adhesive layer comprises a first barrier portion and a second barrier portion spaced apart from each other with the plurality of openings therebetween.

16. The electronic device of claim 15 , wherein
each of the first barrier adhesive layer and the second barrier adhesive layer has a thickness, and
the thickness of the first barrier adhesive layer is less than the thickness of the second barrier adhesive layer.

17. The electronic device of claim 15 , wherein
the first barrier portion and the second barrier portion are spaced apart from each other along a first direction by a distance,
at the foldable area, the support layer comprises a first sidewall and a second sidewall spaced apart from each other along the first direction with the plurality of openings therebetween,
the first sidewall and the second sidewall are spaced apart from each other by a width along the first direction, and
the distance between the first barrier portion and the second barrier portion is greater than the width between the first sidewall and the second sidewall of the support layer.

18. The electronic device of claim 14 , wherein the display panel further comprises a display area adjacent to the foldable area and a non-display area which is adjacent to both the display area and the foldable area,
further comprising:
a first hole which corresponds to the non-display area and extends through both the display panel and the support layer to have a depth,
a second hole which corresponds to the display area and extends through the support layer to have a depth,
a first electronic module extended into the first hole from outside the support layer; and
a second electronic module extended into the second hole from outside the support layer,
wherein the depth of the first hole is greater than the depth of the second hole.

19. The electronic device of claim 18 , wherein
at each of the first hole and the second

Assignees

• Samsung Display Co Ltd

Inventors

• Shin Jaiku
• Park Dongjin
• Seo Dongwoo
• Choi Sung Chul
• La Sojeong
• Shin Jihye
• Lee Seokchan

Classifications

• H10K50/84

  Passivation; Containers; Encapsulations · 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

• H10K59/8722

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• G06F1/1652 Primary

  the display being flexible, e.g. mimicking a sheet of paper, or rollable · CPC title