Display device including anti-reflection layers to transmit different colored light

Patent metadata

Field	Value
Publication number	US-11805690-B2
Application number	US-202117235666-A
Country	US
Kind code	B2
Filing date	Apr 20, 2021
Priority date	Sep 10, 2020
Publication date	Oct 31, 2023
Grant date	Oct 31, 2023

Abstract

A display device includes: a first substrate including a first region, a second region adjacent to the first region, and a third region adjacent to the second region; a plurality of emission layers on the first substrate; a first anti-reflection layer on the plurality of emission layers, and to transmit a first colored light; a second anti-reflection layer on the plurality of emission layers, and to transmit a second colored light and a third colored light that are different from the first colored light; and a second substrate on the first anti-reflection layer and the second anti-reflection layer.

First claim

What is claimed is:

1. A display device comprising:
a first substrate comprising a first region, a second region adjacent to the first region, and a third region adjacent to the second region;
a plurality of emission layers on the first substrate;
a first anti-reflection layer on at least one of the plurality of emission layers, and overlapping with the first region while being offset from at least one of the second region or the third region in a direction parallel to a surface of the first substrate, the first anti-reflection layer being configured to transmit a first colored light;
a second anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a second colored light and a third colored light that are different from the first colored light; and
a second substrate on the first anti-reflection layer and the second anti-reflection layer.

2. The display device of claim 1 , wherein the plurality of emission layers comprise:
a first emission layer configured to emit red light, and overlapping with the first region;
a second emission layer configured to emit green light, and overlapping with the second region; and
a third emission layer configured to emit blue light, and overlapping with the third region.

3. A display device comprising:
a first substrate comprising a first region, a second region adjacent to the first region, and a third region adjacent to the second region;
a plurality of emission layers on the first substrate;
a first anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a first colored light;
a second anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a second colored light and a third colored light that are different from the first colored light; and
a second substrate on the first anti-reflection layer and the second anti-reflection layer,
wherein the plurality of emission layers comprise:
a first emission layer configured to emit red light, and overlapping with the first region;
a second emission layer configured to emit green light, and overlapping with the second region; and
a third emission layer configured to emit blue light, and overlapping with the third region, and

wherein:
the first anti-reflection layer overlaps with the first region, and contacts the second substrate; and
the second anti-reflection layer overlaps with the second region and the third region, and contacts the second substrate.

4. The display device of claim 3 , wherein the first color is red, the second color is green, and the third color is blue.

5. The display device of claim 2 , wherein:
the first anti-reflection layer overlaps with the first region, and contacts the second anti-reflection layer; and
the second anti-reflection layer overlaps with the first region, the second region, and the third region, and contacts the second substrate.

6. The display device of claim 5 , wherein the second anti-reflection layer is further configured to transmit the first colored light.

7. The display device of claim 5 , wherein the first color is red, the second color is green, and the third color is blue.

8. The display device of claim 1 , wherein a material included in the first anti-reflection layer and a material included in the second anti-reflection layer are different from each other.

9. The display device of claim 1 , wherein a thickness of the first anti-reflection layer and a thickness of the second anti-reflection layer are different from each other.

10. The display device of claim 1 , wherein a thickness of the first anti-reflection layer and a thickness of the second anti-reflection layer are the same as each other.

11. The display device of claim 1 , wherein at least one of the first anti-reflection layer or the second anti-reflection layer comprise a plurality of layers.

12. The display device of claim 11 , wherein the plurality of layers have different refractive indices from one another.

13. A display device comprising:
a first substrate comprising a first region, a second region adjacent to the first region, and a third region adjacent to the second region;
a plurality of emission layers on the first substrate;
a first anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a first colored light;
a second anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a second colored light that is different from the first colored light;
a third anti-reflection layer on at least one of the plurality of emission layers, and configured to transmit a third colored light that is different from the first colored light and the second colored light; and
a second substrate on the first anti-reflection layer, the second anti-reflection layer, and the third anti-reflection layer,
wherein each of the first, second, and third anti-reflection layers contacts the second substrate.

14. The display device of claim 13 , wherein the plurality of emission layers comprise:
a first emission layer configured to emit red light, and overlapping with the first region;
a second emission layer configured to emit green light, and overlapping with the second region; and
a third emission layer configured to emit blue light, and overlapping with the third region.

15. The display device of claim 14 , wherein:
the first anti-reflection layer overlaps with the first region, and contacts the second substrate;
the second anti-reflection layer overlaps with the second region, and contacts the second substrate; and
the third anti-reflection layer overlaps with the third region, and contacts the second substrate.

16. The display device of claim 15 , wherein the first color is red, the second color is green, and the third color is blue.

17. The display device of claim 13 , wherein a material included in the first anti-reflection layer, a material included in the second anti-reflection layer, and a material included in the third anti-reflection layer are different from one another.

18. The display device of claim 13 , wherein a thickness of the first anti-reflection layer, a thickness of the second anti-reflection layer, and a thickness of the third anti-reflection layer are different from one another.

19. The display device of claim 13 , wherein a thickness of the first anti-reflection layer, a thickness of the second anti-reflection layer, and a thickness of the third anti-reflection layer are the same as each other.

20. The display device of claim 13 , wherein:
at least one of the first anti-reflection layer, the second anti-reflection layer, or the third anti-reflection layer comprise a plurality of layers; and
the plurality of layers have different refractive indices from one another.

Assignees

• Samsung Display Co Ltd

Inventors

• Hong Jongbeom
• Kim Reehyang
• Shim Yongsub
• Yoo Youngjun

Classifications

• H10K59/8791

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

• H10K59/30 Primary

  Devices specially adapted for multicolour light emission · CPC title

• H10K59/875 Primary

  Arrangements for extracting light from the devices · CPC title

• H10K59/122 Primary

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

• H10K59/353

  characterised by the geometrical arrangement of the RGB subpixels · CPC title