Display apparatus including laser blocking layer

Patent metadata

Field	Value
Publication number	US-10135010-B2
Application number	US-201615294452-A
Country	US
Kind code	B2
Filing date	Oct 14, 2016
Priority date	Oct 16, 2015
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

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:

1. A display apparatus, comprising:
a substrate comprising 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, wherein the insulating layer comprises a first insulating layer, a second insulating layer disposed on the first insulating layer, and a third insulating layer disposed on the second insulating layer;
an insulating dam disposed on the third insulating layer;
a thin film encapsulation layer disposed on the substrate; and
a laser blocking layer comprising a first laser blocking layer disposed on the first insulating layer, a second laser blocking layer disposed on the second insulating layer, and a third laser blocking layer disposed on a top surface of the insulating dam and side surfaces of the insulating dam,
wherein the third laser blocking layer comprises end portions extending from the side surfaces of the insulating dam onto the third insulating layer, and each of the end portions overlaps an end portion of a different segment of the second laser blocking layer;
wherein the substrate comprises a display area and a non-display area that is disposed between the display area and the hole area, and the laser blocking layer is disposed on the insulating layer in the non-display area.

2. The display apparatus of claim 1 ,
wherein the insulating dam is disposed in the non-display area.

3. The display apparatus of claim 1 , wherein the insulating layer is disposed in the display area and the non-display area, and the laser blocking layer is disposed on the insulating layer and the insulating dam.

4. The display apparatus of claim 3 , wherein the laser blocking layer surrounds the display area.

5. The display apparatus of claim 3 , wherein
the thin film transistor and the light-emitting component are disposed in the display area;
the thin film transistor comprises a semiconductor active layer, a gate electrode, a source electrode, and a drain electrode;
the light-emitting component comprises a first electrode electrically connected to the thin film transistor, an intermediate layer comprising an organic emission layer, and a second electrode;
a reinforcement layer is disposed between the insulating layer and the insulating dam;
the first laser blocking layer and the semiconductor active layer or the gate electrode are disposed on the first insulating layer;
the second laser blocking layer and the first electrode are disposed on the second insulating layer; and
the reinforcement layer, the source electrode and the drain electrode are disposed on the third insulating layer.

6. The display apparatus of claim 1 , wherein the first, second and third laser blocking layers overlap each other.

7. The display apparatus of claim 6 , wherein
an end portion of a segment of the first laser blocking layer and an end portion of a segment of the second laser blocking layer overlap each other.

8. The display apparatus of claim 1 , wherein the insulating dam is disposed between adjacent segments of the first laser blocking layer or between adjacent segments of the second laser blocking layer.

9. The display apparatus of claim 1 , further comprising:
an insulating auxiliary dam disposed on the insulating dam.

10. The display apparatus of claim 1 , further comprising:
a first reinforcement layer disposed between the third insulating layer and the insulating dam, wherein the insulating dam covers the first reinforcement layer.

11. The display apparatus of claim 10 , further comprising:
an insulating auxiliary dam disposed on the insulating dam.

12. The display apparatus of claim 10 , further comprising:
a second reinforcement layer disposed between the first reinforcement layer and the first insulating layer.

13. The display apparatus of claim 12 , further comprising:
an insulating auxiliary dam disposed on the insulating dam.

14. The display apparatus of claim 1 , wherein the laser blocking layer comprises a reflector formed of a metal material.

15. The display apparatus of claim 1 , wherein the hole area is surrounded by the display area.

16. The display apparatus of claim 1 , wherein the hole area passes through the substrate and the thin film encapsulation layer.

17. The display apparatus of claim 1 , further comprising:
a cut portion disposed in the substrate, wherein the hole area corresponds to the cut portion.

18. The display apparatus of claim 1 , wherein the insulating dam comprises a plurality of insulating dams, and the display apparatus further comprises:
a clad layer disposed between adjacent insulating dams from among the plurality of insulating dams, wherein the clad layer overlaps an edge of the third laser blocking layer.

19. The display apparatus of claim 1 , wherein an entirety of the top surface of the insulating dam is covered by the third laser blocking layer.

20. The display apparatus of claim 1 ,
wherein the first laser blocking layer comprises a plurality of first segments spaced apart from one another, and the second laser blocking layer comprises a plurality of second segments spaced apart from one another,
wherein each first segment comprises a first end portion and a second end portion, the first and second end portions are respectively overlapped by end portions of different second segments of the second laser blocking layer, and a remaining portion of each first segment between the first and second end portions is not overlapped by the second laser blocking layer.

21. A display apparatus, comprising:
a substrate comprising a display area, a hole area, and a non-display area disposed between the display area and the hole area;
at least one hole passing through the substrate in the hole area;
a thin film transistor disposed on the substrate in the display area;
a light-emitting component disposed on the substrate in the display area and electrically connected to the thin film transistor;
a first insulating layer disposed on the substrate;
a first laser blocking layer disposed on the first insulating layer in the non-display area, wherein the first laser blocking layer comprises a plurality of first segments spaced apart from one another;
a second insulating layer disposed on the first insulating layer and the first laser blocking layer; and
a second laser blocking layer disposed on the second insulating layer in the non-display area wherein the second laser blocking layer comprises a plurality of second segments spaced apart from one another,
wherein each first segment comprises a first end portion and a second end portion, the first and second end portions are respectively overlapped by end portions of different second segments of the second laser blocking layer, and a remaining portion of each first segment between the first and second end portions is not overlapped by the second laser blocking layer.

22. The display apparatus of claim 21 , further comprising:
a third insulating layer disposed on the second insulating layer and the second laser blocking layer; and
an insulating dam disposed on the third insulating layer in the non-display area.

23. The display apparatus of claim 22 , further comprising:
a third laser blocking layer disposed on the insulating dam in the non-display area.

24. The display apparatus of claim 23 , wh

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Sunkwang
• Kang Kinyeng

Classifications

• H01L51/5256

  Electricity · mapped topic

• H01L51/0096 Primary

  Electricity · mapped topic

• H01L27/1237

  Electricity · mapped topic

• H01L27/3258

  Electricity · mapped topic

• Y02E10/549

  Organic PV cells · CPC title