Display apparatus with substrate hole and touch electrode

Patent metadata

Field	Value
Publication number	US-10680205-B2
Application number	US-201916572462-A
Country	US
Kind code	B2
Filing date	Sep 16, 2019
Priority date	Feb 12, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A method of manufacturing a display apparatus includes providing a substrate, forming a display unit defining an opening portion in a display region over the substrate, forming a thin film encapsulation layer to seal the display unit, forming a touch electrode over the thin film encapsulation layer, forming a touch insulating film covering the touch electrode such that the thin film encapsulation layer and the touch insulating film are sequentially stacked and formed over the substrate in the opening portion, forming a touch contact hole by removing a portion of the touch insulating film to expose a portion of the touch electrode, and removing a portion of the touch insulating film and a portion of the thin film encapsulation layer formed in the opening portion to expose a portion of the substrate during the forming of the touch contact hole.

First claim

What is claimed is:

1. A display apparatus including a display area and an opening area, the display apparatus comprising:
a substrate having a hole located in the opening area;
a pixel array comprising a plurality of pixels located at the display area;
an encapsulation layer over the pixel array and comprising an organic encapsulation layer and an inorganic encapsulation layer;
a passivation layer located at the opening area; and
a touch layer over the encapsulation layer and comprising a plurality of touch electrodes.

2. The display apparatus of claim 1 , wherein the passivation layer comprises an organic insulation layer.

3. The display apparatus of claim 2 , wherein the organic insulation layer of the passivation layer comprises polyethylene terephthalate, polyimide, polycarbonate, epoxy, polyethylene, or polyacrylate.

4. The display apparatus of claim 2 , wherein an upper surface of the passivation layer is substantially flat.

5. The display apparatus of claim 1 , wherein a portion of the passivation layer overlaps a portion of the organic encapsulation layer.

6. The display apparatus of claim 1 , wherein a portion of the inorganic encapsulation layer is below the passivation layer.

7. The display apparatus of claim 6 , wherein the inorganic encapsulation layer comprises a first inorganic layer and a second inorganic layer, and
wherein the organic encapsulation layer is interposed between the first inorganic layer and the second inorganic layer.

8. The display apparatus of claim 1 , further comprising a plurality of valleys in the opening area,
wherein the passivation layer covers the plurality of valleys.

9. The display apparatus of claim 1 , wherein the plurality of pixels includes two pixels that are spaced apart from each other with the hole therebetween, and
wherein a width of the hole is less than a distance between the two pixels.

10. A display apparatus including a display area and an opening area surrounded by the display area in a plan view, the display apparatus comprising:
a substrate;
a plurality of light emitting elements over the substrate and arranged in the display area;
an encapsulation layer over the plurality of light emitting elements;
an organic passivation layer over the encapsulation layer in the opening area; and
a hole in the opening area, the hole passing through the organic passivation layer, the encapsulation layer, and the substrate.

11. The display apparatus of claim 10 , wherein the organic passivation layer comprises polyethylene terephthalate, polyimide, polycarbonate, epoxy, polyethylene, or polyacrylate.

12. The display apparatus of claim 10 , wherein an upper surface of at least a portion of the organic passivation layer is substantially flat.

13. The display apparatus of claim 10 , wherein the encapsulation layer comprises a first inorganic layer, an organic layer, and a second inorganic layer that are sequentially stacked.

14. The display apparatus of claim 13 , wherein a portion of the organic passivation layer overlaps a portion of the organic layer of the encapsulation layer.

15. The display apparatus of claim 13 , wherein portions of the first inorganic layer and the second inorganic layer are below the organic passivation layer.

16. The display apparatus of claim 10 , further comprising a plurality of valleys in the opening area,
wherein the organic passivation layer covers the plurality of valleys.

17. The display apparatus of claim 10 , wherein the organic passivation layer comprises a first edge adjacent to the hole and a second edge opposite to the first edge, and
wherein the second edge is spaced apart from the plurality of light emitting elements.

18. The display apparatus of claim 10 , wherein the plurality of light emitting elements comprises two light emitting elements that are spaced apart from each other with the hole therebetween, and
wherein a width of the hole is less than a distance between the two light emitting elements.

19. The display apparatus of claim 10 , further comprising a touch layer over the encapsulation layer.

20. The display apparatus of claim 19 , wherein the touch layer comprises a plurality of touch electrodes and a touch insulation layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jonghyun
• Kang Kinyeng
• Sim Suyeon

Classifications

• H01L51/56

  Electricity · mapped topic

• H01L27/323

  Electricity · mapped topic

• H01L2227/323

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• G04B19/12 Primary

  Selection of materials for dials or graduations {markings} · CPC title