Display device with ring-shape spacer surrounding transmission area and island-shape spacers in non-display area

Patent metadata

Field	Value
Publication number	US-12349552-B2
Application number	US-202318449211-A
Country	US
Kind code	B2
Filing date	Aug 14, 2023
Priority date	Sep 3, 2019
Publication date	Jul 1, 2025
Grant date	Jul 1, 2025

Abstract

A display device includes a first substrate, an insulating layer, a plurality of display elements, a plurality of first spacers, and a second substrate. The first substrate includes a transmission area, a display area surrounding at least a portion of the transmission area, and a first non-display area located between the transmission area and the display area. The insulating layer is arranged on the first substrate in the display area and the first non-display area. The plurality of display elements are disposed on the insulating layer in the display area. The plurality of first spacers each has an island shape and are spaced apart from each other on the insulating layer in the first non-display area. The second substrate faces the first substrate.

First claim

What is claimed is:

1. A display device comprising:
a substrate comprising a transmission area, a display area surrounding at least a portion of the transmission area, and a first non-display area located between the transmission area and the display area;
an insulating layer arranged on the substrate in the display area and the first non-display area;
a plurality of display elements disposed on the insulating layer in the display area;
a first spacer arranged on the insulating layer in the first non-display area and having a ring shape that surrounds the transmission area; and
a plurality of second spacers each having an island shape and spaced apart from each other on the insulating layer in the first non-display area,
wherein a width of the first spacer in a first direction is greater than a width of each of the second spacers in the first direction.

2. The display device of claim 1 , wherein the first spacer is adjacent to the transmission area, and the plurality of second spacers are arranged around the first spacer.

3. The display device of claim 1 , wherein the first spacer and the plurality of second spacers comprise a same material.

4. The display device of claim 1 , wherein the first spacer and the plurality of second spacers comprise an organic insulating material.

5. The display device of claim 1 , further comprising a plurality of third spacers located on the insulating layer in the display area, each having an island shape, and arranged between the plurality of display elements.

6. The display device of claim 5 , wherein the first spacer, the plurality of second spacers and the plurality of third spacers comprise a same material.

7. The display device of claim 5 , wherein a width of each of the plurality of third spacer in the first direction and the width of each of the plurality of second spacers in the first direction are the same.

8. The display device of claim 5 , wherein intervals between the plurality of second spacers and intervals between the plurality of third spacers are the same.

9. The display device of claim 1 , wherein the insulating layer comprises at least one inorganic insulating layer and at least one organic insulating layer, and
the at least one organic insulating layer is on the at least one inorganic insulating layer.

10. The display device of claim 9 , wherein each of the plurality of display elements comprises a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode.

11. The display device of claim 10 , further comprising a pixel defining layer located in the display area and the first non-display area,
wherein the pixel defining layer is arranged on the at least one organic insulating layer and between the first electrodes of the display elements in the display area.

12. The display device of claim 11 , wherein the first spacer and the plurality of second spacers are on the pixel defining layer arranged in the first non-display area.

13. The display device of claim 11 , wherein the second electrode covers the pixel defining layer, the first spacer and the plurality of second spacers.

14. A display device comprising:
a substrate comprising a transmission area, a display area surrounding at least a portion of the transmission area, and a first non-display area located between the transmission area and the display area;
a first electrode arranged in the display area on the substrate;
an insulating layer arranged in the display area and the first non-display area on the substrate and comprising an opening corresponding to a portion of the first electrode in the display area and comprising a hole corresponding to the transmission area;
a first spacer arranged on the insulating layer in the first non-display area and having a ring shape that surrounds the transmission area; and
a plurality of second spacers each having an island shape and spaced apart from each other on the insulating layer in the first non-display area,
wherein a width of the first spacer in a first direction is greater than a width of each of the second spacers in the first direction.

15. The display device of claim 14 , wherein the first spacer is adjacent to the transmission area, and the plurality of second spacers are arranged around the first spacer.

16. The display device of claim 14 , wherein the first spacer and the plurality of second spacers comprise a same material.

17. The display device of claim 14 , further comprising a plurality of third spacers located on the insulating layer in the display area, each having an island shape, and arranged around the opening.

18. The display device of claim 17 , wherein the first spacer, the plurality of second spacers and the plurality of third spacers comprise a same material.

19. The display device of claim 17 , wherein a width of each of the plurality of third spacer in the first direction and the width of each of the plurality of second spacers in the first direction are the same.

20. The display device of claim 17 , wherein intervals between the plurality of second spacers and intervals between the plurality of third spacers are the same.

Assignees

• Samsung Display Co Ltd

Inventors

• Lee Wonse
• In Yunkyeong
• Kim Sukyoung
• Yoon Youngsoo
• Jang Donghyeon
• Jeon Yujin
• Cha Hyunji

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/8791

  Arrangements for improving contrast, e.g. preventing reflection of ambient light · CPC title

• H10K59/8723 Primary

  Vertical spacers, e.g. arranged between the sealing arrangement and the OLED · CPC title

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title