Display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10224498-B2
Application number	US-201715719183-A
Country	US
Kind code	B2
Filing date	Sep 28, 2017
Priority date	Sep 29, 2016
Publication date	Mar 5, 2019
Grant date	Mar 5, 2019

Abstract

Provided are a display apparatus and a method of manufacturing the display apparatus. The display apparatus includes: a substrate including 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 including a protection film base and a viscous layer; and a bending protection layer including a first bending protection layer and a second bending protection layer and corresponding to the bending area, wherein the protection film is located over the lower surface of the substrate and has an opening corresponding to the bending area or at least a part of the first area, and 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.

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 has an opening corresponding to the bending area or at least a part of the first area and the second area, and
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.

2. The display apparatus of claim 1 , wherein a maximum height of the first bending protection layer is greater than a maximum height of the second bending protection layer.

3. The display apparatus of claim 1 , wherein the first bending protection layer at least partially overlaps the second bending protection layer.

4. The display apparatus of claim 1 , wherein a point corresponding to a maximum height of the first bending protection layer is outside the boundary of the opening.

5. The display apparatus of claim 1 , wherein the first bending protection layer is arranged over the substrate and overlaps the boundary of the opening.

6. The display apparatus of claim 1 , wherein the first bending protection layer is formed in a closed loop.

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

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

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

10. 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, and
the display apparatus further comprises:
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.

11. 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.

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

13. The display apparatus of claim 11 , 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.

14. The display apparatus of claim 11 , wherein at least a part of an upper surface of the organic material layer has an uneven surface.

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

• H01L51/0097 Primary

  Electricity · mapped topic

• H01L2251/566

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic