Display device

Patent metadata

Field	Value
Publication number	US-11822169-B2
Application number	US-202218046430-A
Country	US
Kind code	B2
Filing date	Oct 13, 2022
Priority date	Mar 10, 2022
Publication date	Nov 21, 2023
Grant date	Nov 21, 2023

Abstract

A display device includes: a first substrate including a first area, a second area surrounding the first area, and a third area surrounding the second area; a second substrate facing the first substrate; a sealing member between the first substrate and the second substrate at the third area; a color filter layer under the second substrate; a low refractive index layer under the color filter layer, overlapping with the first area, and spaced from the sealing member; a protective layer covering the low refractive index layer, surrounding a side surface of the low refractive index layer, and including an inorganic material; and a color conversion layer under the protective layer, overlapping with the first area, and including a plurality of color conversion parts spaced from each other.

First claim

What is claimed is:

1. A display device comprising:
a first substrate including a first area, a second area surrounding the first area, and a third area surrounding the second area;
a second substrate facing the first substrate;
a sealing member between the first substrate and the second substrate at the third area;
a color filter layer under the second substrate;
a low refractive index layer under the color filter layer, overlapping with the first area, and spaced from the sealing member;
a protective layer covering the low refractive index layer, surrounding a side surface of the low refractive index layer, and comprising an inorganic material; and
a color conversion layer under the protective layer, overlapping with the first area, and comprising a plurality of color conversion parts spaced from each other.

2. The display device of claim 1 , wherein the protective layer overlaps with the first area, the second area, and the third area.

3. The display device of claim 1 , wherein the protective layer contacts the side surface of the low refractive index layer.

4. The display device of claim 1 , wherein the color filter layer overlaps with the sealing member.

5. The display device of claim 1 , wherein the color filter layer is spaced from the sealing member in a plan view.

6. The display device of claim 5 , wherein the protective layer surrounds a side surface of the color filter layer, and the side surface of the low refractive index layer.

7. The display device of claim 1 , further comprising:
a barrier layer under the protective layer.

8. The display device of claim 7 , wherein the barrier layer overlaps with the second area.

9. The display device of claim 8 , wherein at least a portion of the barrier layer overlaps with the color conversion layer, and the portion of the barrier layer is under the color conversion layer.

10. The display device of claim 9 , wherein the barrier layer overlaps with the sealing member.

11. The display device of claim 9 , wherein the barrier layer is spaced from the sealing member in a plan view.

12. The display device of claim 7 , wherein the barrier layer comprises at least one organic film, or at least one inorganic film.

13. The display device of claim 1 , wherein the low refractive index layer has a metal ion concentration of less than about 1 at %.

14. A display device comprising:
a first substrate including a first area, a second area surrounding the first area, and a third area surrounding the second area;
a second substrate facing the first substrate;
a sealing member between the first substrate and the second substrate at the third area;
a color filter layer under the second substrate, and spaced from the sealing member in a plan view;
a low refractive index layer under the color filter layer, and overlapping with the first area;
a protective layer covering the low refractive index layer, surrounding a side surface of the low refractive index layer, and comprising an inorganic material; and
a color conversion layer under the protective layer, overlapping with the first area, and comprising a plurality of color conversion parts spaced from each other.

15. A display device comprising:
a first substrate including a first area, a second area surrounding the first area, and a third area surrounding the second area;
a second substrate facing the first substrate;
a sealing member between the first substrate and the second substrate at the third area;
a color filter layer under the second substrate;
a low refractive index layer under the color filter layer, overlapping with the first area, and spaced from the sealing member;
a protective layer covering the low refractive index layer, surrounding a side surface of the low refractive index layer, and comprising an inorganic material; and
a color conversion layer under the protective layer, overlapping with the first area, and comprising a plurality of color conversion parts spaced from each other,
wherein the protective layer surrounds a side surface of the color filter layer.

16. The display device of claim 14 , wherein the low refractive index layer contacts a side surface of the color filter layer.

17. The display device of claim 14 , wherein the low refractive index layer overlaps with the sealing member.

18. The display device of claim 14 , further comprising:
a barrier layer under the protective layer, and overlapping with the second area.

19. The display device of claim 18 , wherein at least a portion of the barrier layer overlaps with the color conversion layer, and the portion of the barrier layer is under the color conversion layer.

20. The display device of claim 18 , wherein the barrier layer comprises at least one organic film, or at least one inorganic film.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Ran
• Lee Juwon
• Kim Kihyun
• Park Younggil
• JEONG Sooim

Classifications

• H10K50/8426 Primary

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• G02F1/133617 Primary

  Illumination with ultraviolet light; Luminescent elements or materials associated to the cell · CPC title

• G02F1/133305 Primary

  Flexible substrates, e.g. plastics, organic film · CPC title

• G02F1/1339

  Gaskets; Spacers; Sealing of cells · CPC title

• H10K50/844

  Encapsulations · CPC title