Display apparatus

Patent metadata

Field	Value
Publication number	US-12010907-B2
Application number	US-202217861883-A
Country	US
Kind code	B2
Filing date	Jul 11, 2022
Priority date	Sep 29, 2016
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

Provided is a display apparatus. The display apparatus comprises: a substrate comprising a bending area located between a first area and a second area and bent in the bending area; a display unit arranged over an upper surface of the substrate and located in the first area; a protection film located over a lower surface of the substrate and comprising a protection film base and a viscous layer, the protection film base not directly contacting the substrate; and a bending protection layer comprising a first bending protection layer and a second bending protection layer and corresponding to the bending area, wherein the protection film has an opening corresponding to the bending area or at least a part of the first area and the second area, wherein the first bending protection layer is arranged over at least a part of a boundary of the opening or over an outside of the boundary of the opening, and at least a part of the second bending protection layer is arranged over an inside of the boundary of the opening, and wherein a height of one point of the first bending protective layer is higher than a height of one point of the second bending protective layer.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate comprising a bending area located between a first area and a second area and bent in the bending area;
a display unit arranged over an upper surface of the substrate and located in the first area;
a protection film located over a lower surface of the substrate and comprising a protection film base and a viscous layer, the protection film base not directly contacting the substrate; and
a bending protection layer comprising a first bending protection layer and a second bending protection layer and corresponding to the bending area,
wherein the protection film base has an opening corresponding to the bending area or at least a part of the first area and the second area, wherein the opening extends through an entire thickness of the protection film base,
wherein the first bending protection layer is arranged over at least a part of a boundary of the opening or over an outside of the boundary of the opening, and at least a part of the second bending protection layer is arranged over an inside of the boundary of the opening, and
wherein a height of one point of the first bending protection layer is higher than a height of one point of the second bending protection layer.

2. The display apparatus of claim 1 ,
wherein the one point of the first bending protection layer is disposed closer to the second area than the one point of the second bending protection layer, or disposed in the second area.

3. The display apparatus of claim 1 , further comprising:
a conductive layer disposed on the second region.

4. The display apparatus of claim 1 ,
wherein the height of the bending protection layer is sequentially increased from a point of the second bending protection layer to a point of the first bending protection layer.

5. The display apparatus of claim 1 ,
wherein an area of the bending protection layer is greater than an area of the opening.

6. The display apparatus of claim 1 ,
wherein an area of the opening is greater than an area of the bending area.

7. The display apparatus of claim 1 , further comprising:
a filler configured to at least partially fill the inside of the opening.

8. The display apparatus of claim 1 ,
wherein the substrate is bent so that a part of a lower surface of the first area and at least a part of a lower surface of the second area face each other, and the protection film base corresponds to the first area and the second area and comprises the opening corresponding to the bending area.

9. The display apparatus of claim 1 , further comprising:
a cushion layer in contact with both a part of the protection film base over the first area and a part of the protection film base over the second area.

10. The display apparatus of claim 1 , further comprising:
an inorganic insulating layer arranged over the substrate;
a first conductive layer extending from the first area to the second area via the bending area and arranged over the inorganic insulating layer; and
an organic material layer arranged between the inorganic insulating layer and the first conductive layer and overlapping the bending area.

11. The display apparatus of claim 10 ,
wherein the inorganic insulating layer has a flat upper surface in an area in which the inorganic insulating layer overlaps the organic material layer.

12. The display apparatus of claim 10 ,
wherein the inorganic insulating layer has a groove or an opening in an area in which the inorganic insulating layer overlaps the organic material layer so that the organic material layer fills the groove or the opening.

13. The display apparatus of claim 10 ,
wherein at least a part of an upper surface of the organic material layer has an uneven surface.

14. A display apparatus comprising:
a substrate comprising a bending area located between a first area and a second area and bent in the bending area;
a display unit arranged over an upper surface of the substrate and located in the first area;
a protection film located over a lower surface of the substrate and comprising a protection film base and a viscous layer, the protection film base not directly contacting the substrate; and
a bending protection layer corresponding to the bending area,
wherein the protection film base has an opening corresponding to the bending area or at least a part of the first area and the second area, wherein the opening extends through an entire thickness of the protection film base,
wherein a height of one point of the bending protection layer in the second area is higher than a height of one point of the bending protection layer in the bending area.

15. The display apparatus of claim 14 ,
wherein the height of one point of the bending protection layer is sequentially increased from the bending area to the second area.

16. A display apparatus comprising:
a substrate comprising a bending area located between a first area and a second area and bent in the bending area;
a display unit arranged over an upper surface of the substrate and located in the first area;
a protection film located over a lower surface of the substrate and comprising a protection film base and a viscous layer, the viscous layer directly contacting the substrate; and
a bending protection layer corresponding to the bending area,
wherein the protection film base has an opening corresponding to the bending area or at least a part of the first area and the second area, wherein the opening extends through an entire thickness of the protection film base, and
wherein a height of one point of the bending protection layer in the second area is higher than a height of one point of the bending protection layer in the bending area.

17. The display apparatus of claim 1 , further comprising:
an organic layer corresponding to the bending area, and
wherein the organic layer is formed over the opening corresponding to the bending area.

18. The display apparatus of claim 17 ,
wherein the organic layer has a width that is greater than a width of the bending area.

Assignees

• Samsung Display Co Ltd

Inventors

• Um Dongbin
• Kim Joonsam
• Min Jinsic
• Son Euncheol
• Heo Kyeongyeol

Classifications

• H10W42/121

  protecting against mechanical damage (H10W76/00, H10W74/00 take precedence) · CPC title

• H10K77/111 Primary

  Flexible substrates · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title

• H10K59/12 Primary

  Active-matrix OLED [AMOLED] displays · CPC title