Display device including corner dams

Patent metadata

Field	Value
Publication number	US-11678509-B2
Application number	US-202117322956-A
Country	US
Kind code	B2
Filing date	May 18, 2021
Priority date	Oct 16, 2020
Publication date	Jun 13, 2023
Grant date	Jun 13, 2023

Abstract

A display device includes: a substrate including a display area, the display area including a front area and a corner area disposed at a corner of the display area; a main dam disposed between the front area and the corner area; and a plurality of corner dams disposed in the corner area. The corner area may include a plurality of stripe areas defined by the plurality of corner dams. The plurality of corner dams extend from the main dam and is disposed along an edge of the plurality of stripe areas.

First claim

What is claimed is:

1. A display device comprising:
a substrate including a display area, the display area including a front area and a corner area disposed at a corner of the display area;
a main dam disposed between the front area and the corner area; and
a plurality of corner dams disposed in the corner area,
wherein the corner area includes a plurality of stripe areas defined by the plurality of corner dams and the plurality of corner dams extend from the main dam and is disposed along an edge of the plurality of stripe areas.

2. The display device of claim 1 , wherein the substrate in the plurality of stripe areas are separated from each other.

3. The display device of claim 1 , wherein the front area has a flat surface, the corner area has a multi-curved surface and the plurality of stripe areas form the multi-curved surface of the corner area.

4. The display device of claim 1 , wherein portions of the plurality of corner dams disposed at each of the plurality of stripe areas are connected to the main dam to form stripe areas connect to the front area.

5. The display device of claim 1 , further comprising:
a plurality of light emitting diodes disposed in the front area and the plurality of stripe areas; and
an encapsulation layer covering the plurality of light emitting diodes,
wherein the encapsulation layer includes an organic layer and the organic layer is continuously disposed over the front area and the plurality of stripe areas.

6. The display device of claim 5 , wherein a thickness of the organic layer in the corner area is thinner than that in the front area.

7. The display device of claim 6 , wherein the thickness of the organic layer is changed in a boundary area disposed between the front area and the corner area.

8. The display device of claim 5 , further comprising at least one spacer disposed in the front area adjacent to the corner area and disposed corresponding to an area disposed between adjacent stripe areas of the plurality of stripe areas.

9. The display device of claim 8 , wherein the height of the spacer is higher than a height of the main dam.

10. The display device of claim 8 , wherein the spacer is covered by the organic layer.

11. The display device of claim 8 , wherein the spacer has a polygonal, circular, or semicircular shape in a plan view.

12. The display device of claim 8 , wherein the spacer is disposed spaced apart from the main dam or in contact with the main dam.

13. The display device of claim 1 , wherein the main dam and the plurality of corner dams each includes a first layer, a second layer, and a third layer that are sequentially stacked, the first layer and the third layer include an organic insulating material, and the second layer includes an inorganic insulating material.

14. The display device of claim 13 , wherein the second layer is protruded from a top of the first layer in a cross-sectional view.

15. A display device comprising:
a substrate including a display area, the display area including a front area and a corner area disposed at the corner of the display area;
a plurality of light emitting diodes disposed in the display area; and
an encapsulation layer covering the plurality of light emitting diodes and including an organic layer and an inorganic layer,
wherein a thickness of the organic layer disposed in the corner area is thinner than that in the front area.

16. The display device of claim 15 , wherein the organic layer is disposed continuously over the front area and the corner area.

17. The display device of claim 16 , wherein the thickness of the organic layer is gradually changed in a boundary area disposed between the front area and the corner area.

18. The display device of claim 15 , wherein an interval between a first light emitting diode disposed adjacent to the corner area in the front area and a second light emitting diode disposed adjacent to the first light emitting diode in the corner area is the same as an interval between light emitting diodes disposed adjacent to each other in the front area.

19. The display device of claim 15 , further comprising:
a main dam disposed between the front area and the corner area; and
a plurality of corner dams disposed in the corner area,
wherein the corner area includes a plurality of stripe areas defined by the plurality of corner dams and the main dam and the plurality of corner dams are continuously formed.

20. The display device of claim 19 , further comprising a spacer disposed adjacent to the corner area in the front area and has a height higher than that of the main dam.

Assignees

• Samsung Display Co Ltd

Inventors

• Hyun Jin Ho
• Lee Hyoung Sub
• Lee Hye Min
• Sung Woo Yong

Classifications

• H10K59/122 Primary

  Pixel-defining structures or layers, e.g. banks · CPC title

• G06F1/1637

  Details related to the display arrangement, including those related to the mounting of the display in the housing · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• G09F9/33

  being semiconductor devices, e.g. diodes · CPC title

• H10K2102/311

  Flexible OLED · CPC title