Display apparatus having an encapsulation inorganic layer and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-10319944-B2
Application number	US-201514727670-A
Country	US
Kind code	B2
Filing date	Jun 1, 2015
Priority date	Aug 29, 2014
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

A display apparatus includes a substrate on which a central area having a display area and a peripheral area disposed around the central area are defined. The display apparatus includes a display area inorganic layer on the display area and extending to a portion of the peripheral area; and an encapsulation inorganic layer covering the display area, on the display area inorganic layer, and having an edge that is in parallel with or extending over an edge of the display area inorganic layer.

First claim

What is claimed is:

1. A display apparatus comprising a substrate comprising a central area and a peripheral area adjacent to the central area, the central area comprising a display area, the display apparatus further comprising:
a display device and at least one of a semiconductor layer or a conductive layer electrically connected to the display device in the display area, the conductive layer comprising a gate electrode;
a display area inorganic layer on the display area and extending to a portion of the peripheral area; and
an encapsulation inorganic layer on the display area inorganic layer and covering the display area, the encapsulation inorganic layer comprising an edge directly connecting with or extending over an edge of the display area inorganic layer and comprising a region that directly contacts a top surface of the display area inorganic layer at the peripheral area,
wherein the encapsulation inorganic layer covers the display device, and the display area inorganic layer does not cover the display device,
wherein the display area inorganic layer covers a top surface of the at least one of the semiconductor layer or the conductive layer, and
wherein the encapsulation inorganic layer is smaller than the substrate, and the edge of the encapsulation inorganic layer is spaced from an edge of the substrate.

2. The display apparatus of claim 1 , wherein the display area inorganic layer is smaller than the substrate, and the edge of the display area inorganic layer is spaced from an edge of the substrate.

3. The display apparatus of claim 1 , wherein at least one edge of the encapsulation inorganic layer extends over the edge of the display area inorganic layer.

4. The display apparatus of claim 3 , wherein at least one edge of the encapsulation inorganic layer is disposed on the substrate.

5. The display apparatus of claim 1 , wherein the encapsulation inorganic layer comprises a main area and a shadow area that is connected to the main area, the shadow area being closer to an edge of the substrate than the main area is.

6. The display apparatus of claim 5 , wherein the main area extends over the edge of the display area inorganic layer, and the shadow area is on the substrate.

7. The display apparatus of claim 5 , wherein an edge of the main area does not extend over the edge of the display area inorganic layer, and the shadow area contacts a side surface of the display area inorganic layer.

8. The display apparatus of claim 5 , wherein the shadow area has a sloped side surface.

9. The display apparatus of claim 5 , further comprising a separate member that is separate from the display area inorganic layer,
wherein the shadow area of the encapsulation inorganic layer does not extend over the separate member, and the shadow area is not closer to an edge of the substrate than the separate member.

10. The display apparatus of claim 9 , wherein the shadow area contacts a side surface of the separate member.

11. The display apparatus of claim 9 , wherein the shadow area is separate from a side surface of the separate member.

12. The display apparatus of claim 9 , wherein the separate member comprises the same material as the display area inorganic layer.

13. The display apparatus of claim 5 , further comprising a barrier layer between the substrate and the display area inorganic layer.

14. The display apparatus of claim 13 , wherein at least one edge of the encapsulation inorganic layer extends over an edge of the barrier layer.

15. The display apparatus of claim 13 , wherein at least one edge of the barrier layer extends over the edge of the encapsulation inorganic layer.

16. The display apparatus of claim 13 , further comprising a separate member that is separate from the display area inorganic layer, and
wherein the shadow area of the encapsulation inorganic layer does not extend over the separate member so as not to be closer to an edge of the substrate than the separate member, and the separate member is on the barrier layer.

17. The display apparatus of claim 13 , further comprising a separate member that is separate from the display area inorganic layer, and
wherein the shadow area of the encapsulation inorganic layer does not extend over the separate member so as not to be closer to an edge of the substrate than the separate member, and the separate member comprises the same material as the barrier layer.

18. The display apparatus of claim 1 , further comprising an encapsulation organic layer between the display area inorganic layer and the encapsulation inorganic layer so as to cover the display area.

19. The display apparatus of claim 18 , wherein the encapsulation organic layer is smaller than the display area inorganic layer.

20. The display apparatus of claim 18 , wherein the encapsulation organic layer is smaller than the encapsulation inorganic layer.

21. The display apparatus of claim 18 , further comprising a blocking member that is closer to an edge of the substrate than the encapsulation organic layer is.

22. The display apparatus of claim 21 , wherein the blocking member comprises a plurality of the blocking members.

23. The display apparatus of claim 22 , wherein heights of the plurality of the blocking members differ.

24. The display apparatus of claim 1 , wherein the encapsulation inorganic layer comprises a plurality of stacked inorganic layers.

25. The display apparatus of claim 24 , further comprising an encapsulation organic layer covering the display area,
wherein the encapsulation organic layer is between the plurality of stacked inorganic layers of the encapsulation inorganic layer and is smaller than the plurality of stacked inorganic layers.

26. The display apparatus of claim 25 , wherein the encapsulation organic layer comprises a plurality of organic layers, and
at least one of the plurality of organic layers is between one of the plurality of stacked inorganic layers of the encapsulation inorganic layer and the display area inorganic layer.

27. The display apparatus of claim 1 , further comprising a functional layer between the display area inorganic layer and the encapsulation inorganic layer.

28. The display apparatus of claim 27 , wherein the functional layer comprises a layer adapted to control a refractive index of a visible ray.

29. The display apparatus of claim 27 , further comprising a first protective layer between the functional layer and the encapsulation inorganic layer.

30. The display apparatus of claim 1 , further comprising a second protective layer on the encapsulation inorganic layer, the second protective layer being larger than the encapsulation inorganic layer.

31. The display apparatus of claim 1 , wherein the substrate comprises an organic material.

32. The display apparatus of claim 1 , wherein the display area has:
at least one display device; and
a thin film transistor (TFT) electrically connected to the at least one display device and comprising an active layer, the gate electrode, a source electrode, and a drain electrode, and
wherein the display area inorganic layer contacts at least one selected from the active layer, the gate electrode, the source electrode, and the drain electrode.

33. The display apparatus of claim 32 , wherein the display area inorganic layer correspond

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Seongryong
• Seo Sangwon

Classifications

• H01L27/3248

  Electricity · mapped topic

• H01L51/5256 Primary

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L51/5275

  Electricity · mapped topic

• H01L51/5253

  Electricity · mapped topic