Display device and method of manufacturing display device

Patent metadata

Field	Value
Publication number	US-12105918-B2
Application number	US-202318167699-A
Country	US
Kind code	B2
Filing date	Feb 10, 2023
Priority date	Dec 10, 2018
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

Provided is a display device including a display panel having a plurality of pixel regions, a first insulating layer on the display panel, having a first refractive index, and having a plurality of first openings defined in regions which overlap the plurality of pixel regions, a second insulating layer directly on the first insulating layer and having a plurality of second openings defined in regions which correspond to the plurality of first openings, and a third insulating layer covering the display panel, the first insulating layer, and the second insulating layer and having a second refractive index higher than the first refractive index, wherein the third insulating layer may overlap the plurality of pixel regions on a plane.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a pixel region;
an insulating layer on the display panel, the insulating layer comprising an opening overlapping the pixel region and an auxiliary opening spaced from the opening and surrounding the opening; and
a cover insulating layer covering the display panel and the insulating layer, and overlapping the pixel region on a plane,
wherein both the opening and the auxiliary opening are provided recessed from a top surface of the insulating layer, and
wherein the opening and the auxiliary opening do not overlap each other on a plane.

2. The display device of claim 1 , wherein portions of the cover insulating layer are filled in the opening and the auxiliary opening.

3. The display device of claim 1 , wherein the cover insulating layer comprises a flat upper surface.

4. The display device of claim 1 , wherein the auxiliary opening does not overlap the pixel region.

5. The display device of claim 1 , wherein the cover insulating layer comprises an organic material.

6. The display device of claim 1 , wherein the insulating layer comprises:
a first insulating layer on the display panel; and
a second insulating layer directly on the first insulating layer, and
wherein the opening and the auxiliary opening are defined in both the first insulating layer and the second insulating layer.

7. The display device of claim 6 , wherein the first insulating layer has a first refractive index, and the cover insulating layer has a second refractive index that is higher than the first refractive index.

8. The display device of claim 7 , wherein the first refractive index is about 1.45 to about 1.55, and the second refractive index is about 1.60 to about 1.70.

9. The display device of claim 6 , wherein the first insulating layer comprises an organic material, and the second insulating layer comprises an inorganic material.

10. The display device of claim 6 , wherein a thickness of the first insulating layer is greater than a thickness of the second insulating layer.

11. A display device comprising:
a display panel comprising a pixel region;
an insulating layer on the display panel, the insulating layer comprising an opening overlapping the pixel region and an auxiliary opening spaced from the opening and adjacent to the opening; and
a cover insulating layer covering the display panel, and the insulating layer, and overlapping the pixel region on a plane,
wherein the auxiliary opening has a ring shape by two spaced apart side walls of the insulating layer.

12. The display device of claim 11 , wherein a width of the auxiliary opening is smaller than a width of the opening.

13. The display device of claim 11 , wherein the auxiliary opening surrounds the opening on a plane.

14. The display device of claim 11 , wherein the opening and the auxiliary opening do not overlap each other on a plane.

15. The display device of claim 11 , wherein a depth of the opening is substantially the same as a depth of the auxiliary opening.

16. The display device of claim 11 , wherein the cover insulating layer comprises an organic material and a flat upper surface.

17. The display device of claim 11 , wherein the insulating layer comprises:
a first insulating layer on the display panel; and
a second insulating layer directly on the first insulating layer, and
wherein the opening and the auxiliary opening are defined in both the first insulating layer and the second insulating layer.

18. The display device of claim 17 , wherein the first insulating layer has a first refractive index, and the cover insulating layer has a second refractive index that is higher than the first refractive index.

19. The display device of claim 17 , wherein the first insulating layer comprises an organic material, and the second insulating layer comprises an inorganic material.

20. The display device of claim 17 , wherein a thickness of the first insulating layer is greater than a thickness of the second insulating layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Son Jungha
• Kim Gee-Bum
• Kim Sangwoo
• Lee Kijune
• Ahn Taekyung
• Yoo Byung Han
• Lim Jaeik
• Choi Chaungi

Classifications

• H10K59/879

  comprising refractive means, e.g. lenses · CPC title

• H10K59/1201

  Manufacture or treatment · CPC title

• H10K59/40

  OLEDs integrated with touch screens · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title