Display apparatus including a substrate having a hole

Patent metadata

Field	Value
Publication number	US-12010905-B2
Application number	US-202318190811-A
Country	US
Kind code	B2
Filing date	Mar 27, 2023
Priority date	Oct 16, 2015
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A display apparatus includes a substrate including at least one hole disposed in a hole area of the substrate, a thin film transistor disposed on the substrate, a light-emitting component disposed on the substrate and electrically connected to the thin film transistor, an insulating layer disposed on the substrate, a thin film encapsulation layer disposed on the substrate, and a laser blocking layer. The substrate includes a display area and a non-display area that is disposed between the display area and the hole area. The laser blocking layer is disposed on the insulating layer in the non-display area.

First claim

What is claimed is:

1. A display apparatus, comprising:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in a plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
a plurality of metal layers, in the non-display area, arranged between the two dams and the hole of the substrate.

2. The display apparatus of the claim 1 , wherein the first inorganic layer overlaps the plurality of metal layers.

3. The display apparatus of the claim 1 , wherein, in a plan view, each of the plurality of metal layers surrounds the hole in the non-display area.

4. The display apparatus of the claim 1 , wherein the plurality of metal layers comprises a first metal layer that includes a multi-layered structure.

5. The display apparatus of the claim 4 , wherein the plurality of metal layers further comprises a second metal layer overlapped by the first metal layer.

6. The display apparatus of the claim 5 , further comprising:
an inorganic insulation layer that is under the first metal layer and over the second metal layer.

7. The display apparatus of the claim 1 , wherein the two dams comprise a first dam closer to the display area and a second dam disposed between the first dam and the plurality of metal layers, and
wherein, in a plan view, the first and second dams surround the hole in the non-display area.

8. The display apparatus of the claim 7 , wherein a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer between the first dam and the second dam.

9. The display apparatus of the claim 8 , further comprising:
an additional organic layer over the second inorganic layer of the encapsulation layer.

10. The display apparatus of the claim 9 , wherein a contact region of the part of the second inorganic layer and the part of the first inorganic layer of the encapsulation layer is overlapped by the additional organic layer.

11. The display apparatus of the claim 9 , wherein an edge of the additional organic layer is closer to the hole than an edge of the organic layer of the encapsulation layer.

12. The display apparatus of the claim 7 , further comprising:
a plurality of metal lines arranged between the display area and the first dam.

13. The display apparatus of the claim 12 , wherein each of the plurality of metal lines comprises a multi-layered structure, and the multi-layered structure comprises an aluminum (Al) layer.

14. The display apparatus of the claim 13 , wherein the plurality of metal lines comprises same material as an electrode of the transistor or the capacitor,
wherein the transistor comprises a semiconductor layer, a gate electrode overlapping a channel region of the semiconductor layer, and a first electrode connected to a source or drain region of the semiconductor layer, and
wherein the gate electrode or the first electrode comprises a multi-layered structure.

15. The display apparatus of the claim 14 , wherein the multi-layered structure comprises a three-layered structure of titanium (Ti), aluminum (Al), and titanium (Ti).

16. An electronic device, comprising:
a display apparatus, wherein the display apparatus, comprises:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in a plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
a plurality of metal layers, in the non-display area, arranged between the two dams and the hole of the substrate.

17. The electronic device of claim 16 , wherein the two dams comprise a first dam closer to the display area and a second dam disposed between the first dam and the plurality of metal layers,
wherein, in a plan view, the first and second dams surround the hole in the non-display area, and
wherein the display apparatus further comprises a plurality of metal lines arranged between the display area and the first dam.

18. The electronic device of claim 17 , wherein a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer between the first dam and the second dam.

19. A display apparatus, comprising:
a substrate including a front surface and a rear surface, the substrate having a hole that passes from the front surface to the rear surface;
a plurality of light-emitting elements on the front surface of the substrate and defining a display area around the hole, each of the plurality of light-emitting elements being electrically connected to a transistor and a capacitor;
two dams spaced apart from each other in a non-display area of the substrate and disposed between the hole and the display area, each of the two dams extending along an edge of the hole of the substrate to entirely surround the hole of the substrate in the plan view;
an encapsulation layer over the plurality of light-emitting elements and comprising a first inorganic layer, a second inorganic layer, and an organic layer between the first inorganic layer and the second inorganic layer; and
an additional organic layer over the second inorganic layer, wherein the additional organic layer overlaps the two dams.

20. The display apparatus of the claim 19 , wherein:
an edge of the organic layer of the encapsulation layer is disposed in the non-display area,
an edge of the additional organic layer is closer to the hole than the edge of the organic layer of the encapsulation layer, and
a part of the additional organic layer overlaps a part of the organic layer of the encapsulation layer in the display area.

21. The display apparatus of the claim 19 , wherein, in the non-display area, a part of the second inorganic layer of the encapsulation layer is in direct contact with a part of the first inorganic layer, and
wherein a contact region of the part of the second inorganic layer and the part of the first inorganic layer of the encapsulation layer is overlapped by the additional organic layer.

22. The display apparatus of the claim 19 , further comprising:
a plurality of metal layers surrounding the hole in the non-display area in a

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sunkwang
• Kang Kinyeng

Classifications

• H10K59/8731 Primary

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

• H10K77/10 Primary

  Substrates, e.g. flexible substrates · CPC title

• H10K59/124 Primary

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10D86/431

  having different compositions, shapes, layouts or thicknesses of gate insulators in different TFTs · CPC title

• H10D86/60

  wherein the TFTs are in active matrices · CPC title