Display apparatus

Patent metadata

Field	Value
Publication number	US-11545528-B2
Application number	US-202016821879-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Sep 16, 2019
Publication date	Jan 3, 2023
Grant date	Jan 3, 2023

Abstract

A display apparatus including a substrate including a display area and a non-display area adjacent to the display area, a thin film encapsulation layer disposed on the substrate and including at least one inorganic encapsulation layer and at least one organic encapsulation layer, a touch unit disposed on the thin film encapsulation layer in the display area, and including a first insulating layer and a second insulating layer disposed on the first insulating layer, the second insulating layer having a first opening at least partially exposing the first insulating layer, a first partition wall disposed on the thin film encapsulation layer in the non-display area along a periphery of the display area, and an organic layer covering the touch unit, directly contacting an upper surface of the first insulating layer through the first opening, and extending to the first partition wall.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate including a display area and a non-display area adjacent to the display area;
a thin film encapsulation layer disposed on the substrate and including at least one inorganic encapsulation layer and at least one organic encapsulation layer;
a touch unit disposed on the thin film encapsulation layer in the display area, and including a first insulating layer and a second insulating layer disposed on the first insulating layer, the second insulating layer having a first opening at least partially exposing the first insulating layer;
a first partition wall disposed on the thin film encapsulation layer in the non-display area along a periphery of the display area; and
an organic layer covering the touch unit, directly contacting an upper surface of the first insulating layer through the first opening, and extending to the first partition wall.

2. The display apparatus of claim 1 , wherein:
the second insulating layer has a first refractive index; and
the organic layer has a second refractive index greater than the first refractive index.

3. The display apparatus of claim 2 , wherein the first insulating layer and the second insulating layer comprise an organic material.

4. The display apparatus of claim 3 , wherein:
the first partition wall includes a first layer disposed on the thin film encapsulation layer and a second layer disposed on the first layer; and
the first layer comprises the same material as the first insulating layer, and the second layer comprises the same material as the second insulating layer.

5. The display apparatus of claim 4 , further comprising:
a second partition wall spaced apart from the first partition wall and disposed between the first partition wall and the display area along the periphery of the display area; and
a second opening between the first partition wall and the second partition wall, the second opening exposing at least a portion of an upper surface of the thin film encapsulation layer,
wherein the organic layer disposed over the non-display area directly contacts the upper surface of the thin film encapsulation layer through the second opening.

6. The display apparatus of claim 5 , wherein:
the thin film encapsulation layer comprises a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer sequentially stacked one over another; and
the organic layer disposed in the non-display area directly contacts the second inorganic encapsulation layer through the second opening.

7. The display apparatus of claim 1 , wherein an inner side surface of the first opening has a slope tapered forward with respect to the upper surface of the first insulating layer.

8. The display apparatus of claim 1 , wherein the touch unit further includes a conductive layer comprising sensing electrodes.

9. The display apparatus of claim 1 , wherein:
the touch unit further includes a third insulating layer disposed directly on the thin film encapsulation layer; and
the third insulating layer extends to the non-display area and is disposed on the thin film encapsulation layer in the non-display area.

10. The display apparatus of claim 9 , wherein the first insulating layer and the second insulating layer comprise an organic material, and the third insulating layer comprises an inorganic material.

11. The display apparatus of claim 9 , further comprising:
a second partition wall spaced apart from the first partition wall and disposed between the first partition wall and the display area along the periphery of the display area; and
a third opening between the first partition wall and the second partition wall, the third opening exposing at least a portion of an upper surface of the third insulating layer.

12. The display apparatus of claim 11 , wherein the organic layer disposed in the non-display area directly contacts the upper surface of the third insulating layer through the third opening.

13. The display apparatus of claim 9 , wherein:
the touch unit further includes a fourth insulating layer disposed on the third insulating layer; and
the fourth insulating layer extends to the non-display area and is disposed on the third insulating layer in the non-display area.

14. The display apparatus of claim 13 , wherein the first insulating layer and the second insulating layer comprise an organic material, and the fourth insulating layer comprises an inorganic material.

15. The display apparatus of claim 14 , further comprising:
a second partition wall spaced apart from the first partition wall and disposed between the first partition wall and the display area along the periphery of the display area; and
a fourth opening between the first partition wall and the second partition wall,
wherein the fourth opening exposes at least a portion of an upper surface of the fourth insulating layer.

16. The display apparatus of claim 15 , wherein the organic layer disposed in the non-display area directly contacts the upper surface of the fourth insulating layer through the fourth opening.

17. A display apparatus comprising:
a substrate including a display area and a non-display area adjacent to the display area;
a thin film encapsulation layer disposed on the substrate and including at least one inorganic encapsulation layer and at least one organic encapsulation layer;
a touch unit disposed on the thin film encapsulation layer in the display area and including a first insulating layer, a second insulating layer disposed between the first insulating layer and the thin film encapsulation layer, and a third insulating layer disposed between the first insulating layer and the second insulating layer;
a first partition wall disposed on the thin film encapsulation layer in the non-display area along a periphery of the display area; and
an organic layer covering the touch unit and extending to the first partition wall,
wherein the first insulating layer includes a first portion having a first height from an upper surface of the third insulating layer and a second portion having a second height from the upper surface of the third insulating layer,
wherein the first portion and the second portion are disposed in the display area and are each defined as an area from a top surface to a bottom surface of the first insulation layer, and
wherein the second height is greater than the first height.

18. The display apparatus of claim 17 , wherein:
the second insulating layer and the third insulating layer extend to the non-display area; and
the first insulating layer comprises an organic material, and the third insulating layer comprises an inorganic material.

19. The display apparatus of claim 18 , wherein:
the first partition wall includes a first layer disposed on the third insulating layer and extending to the non-display area;
the first layer comprises the same material as the first insulating layer; and
the first partition wall has a third height from the upper surface of the third insulating layer, the third height being the same as the second height.

20. The display apparatus of claim 17 , wherein
the first portion overlaps an emission area.

Assignees

• Samsung Display Co Ltd

Inventors

• Byun Jinsu
• Kim Woongsik
• Han Saehee

Classifications

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• H01L51/5253

  Electricity · mapped topic

• H01L27/323 Primary

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic

• H01L51/5275

  Electricity · mapped topic