Display device having transmission area and electronic apparatus

Patent metadata

Field	Value
Publication number	US-11538880-B2
Application number	US-202017001256-A
Country	US
Kind code	B2
Filing date	Aug 24, 2020
Priority date	Feb 7, 2020
Publication date	Dec 27, 2022
Grant date	Dec 27, 2022

Abstract

A display device includes two pixel circuits spaced apart from each other with a transmission area therebetween, a first insulating layer on the two pixel circuits, two pixel electrodes on the first insulating layer, and a second insulating layer including a first portion covering an edge of each of the two pixel electrodes and a second portion, wherein the first insulating layer includes a third portion overlapping the two pixel electrodes, and a fourth portion having a height greater than a height from the substrate to a top surface of the third portion, wherein the first portion of the second insulating layer overlaps the third portion, and the second portion of the second insulating layer overlaps the fourth portion, wherein a height from the substrate to a top surface of the second portion is greater than a height from the substrate to a top surface of the first portion.

First claim

What is claimed is:

1. A display device comprising:
a substrate;
two pixel circuits on the substrate and spaced apart from each other with a transmission area therebetween, the two pixel circuits each including a transistor and a storage capacitor;
a first insulating layer on the two pixel circuits;
two pixel electrodes on the first insulating layer and respectively connected to the two pixel circuits;
a second insulating layer including a first portion covering an edge of each of the two pixel electrodes and a second portion adjacent to the first portion,
wherein the first insulating layer includes:
a third portion overlapping each of the two pixel electrodes; and
a fourth portion adjacent to the third portion and having a height greater than a height from the substrate to a top surface of the third portion,
wherein the first portion of the second insulating layer overlaps the third portion, and
the second portion of the second insulating layer overlaps the fourth portion, wherein a height from the substrate to a top surface of the second portion is greater than a height from the substrate to a top surface of the first portion; and
a back-side metal layer located between the substrate and the two pixel circuits, wherein the back-side metal layer includes a hole corresponding to the transmission area.

2. The display device of claim 1 , wherein the second insulating layer includes a colored pigment or a carbon black.

3. The display device of claim 1 , wherein each of the first insulating layer and the second insulating layer includes a hole corresponding to the transmission area.

4. The display device of claim 1 , further comprising at least one inorganic insulating layer between the substrate and the first insulating layer,
wherein the at least one inorganic insulating layer includes a hole corresponding to the transmission area.

5. The display device of claim 1 , wherein the first insulating layer includes a photosensitive organic insulating material.

6. The display device of claim 1 , further comprising:
an opposite electrode facing the two pixel electrodes; and
an intermediate layer between each of the two pixel electrodes and the opposite electrode.

7. The display device of claim 6 , wherein the opposite electrode includes a hole corresponding to the transmission area.

8. The display device of claim 6 , wherein the intermediate layer includes:
an emission layer overlapping each of the pixel electrodes, and
a functional layer under or over the emission layer.

9. A display device comprising:
a substrate; and
an array of a plurality of pixels including two pixels arranged on the substrate and spaced apart from each other with a transmission area therebetween,
wherein each of the two pixels includes:
a pixel circuit including a storage capacitor and a thin film transistor that are on the substrate;
a first insulating layer on the pixel circuit;
a pixel electrode on the first insulating layer and electrically connected to the pixel circuit through a contact hole of the first insulating layer;
a second insulating layer including a first portion covering an edge of the pixel electrode and a second portion adjacent to the first portion;
an opposite electrode facing the pixel electrode; and
an emission layer between the pixel electrode and the opposite electrode,

wherein the first portion and the second portion of the second insulating layer include a colored material, wherein a height from the substrate to a top surface of the second portion is greater than a height from the substrate to a top surface of the first portion.

10. The display device of claim 9 , wherein the first insulating layer includes:
a third portion overlapping the pixel electrode; and
a fourth portion adjacent to the third portion and having a height greater than a height from the substrate to a top surface of the third portion,
wherein a height from the substrate to a top surface of the third portion and a height from the substrate to a top surface of the fourth portion are different from each other.

11. The display device of claim 10 , wherein the first portion of the second insulating layer overlaps the third portion and the second portion of the second insulating layer overlaps the fourth portion.

12. The display device of claim 9 , wherein the second insulating layer includes a colored pigment or a carbon black.

13. The display device of claim 9 , wherein each of the first insulating layer and the second insulating layer includes a hole corresponding to the transmission area.

14. The display device of claim 13 , further comprising at least one inorganic insulating layer between the substrate and the first insulating layer,
wherein the at least one inorganic insulating layer includes a hole corresponding to the transmission area.

15. The display device of claim 9 , wherein the opposite electrode includes a hole corresponding to the transmission area.

16. An electronic apparatus comprising:
a display device including a display area including a transmission area and a non-display area surrounding the display area;
a component overlapping at least the transmission area,
wherein the display device includes:
a substrate;
a pixel circuit in the display area and including a storage capacitor and a thin film transistor on the substrate;
a first insulating layer on the pixel circuit;
a pixel electrode on the first insulating layer and electrically connected to the pixel circuit through a contact hole of the first insulating layer; and
a second insulating layer including a first portion covering an edge of the pixel electrode and a second portion adjacent to the first portion,

wherein the first portion and the second portion of the second insulating layer include a colored material, wherein a height from the substrate to a top surface of the second portion is greater than a height from the substrate to a top surface of the first portion; and
a back-side metal layer located between the substrate and the pixel electrode, wherein the back-side metal layer includes a hole corresponding to the transmission area.

17. The electronic apparatus of claim 16 , wherein the second insulating layer includes a colored pigment or a carbon black.

18. The electronic apparatus of claim 17 , wherein the second insulating layer includes a hole corresponding to the transmission area.

19. The electronic apparatus of claim 17 , wherein the first insulating layer includes:
a third portion overlapping the pixel electrode; and
a fourth portion adjacent to the third portion and having a height greater than a height from the substrate to a top surface of the third portion,
wherein a height from the substrate to a top surface of the third portion is smaller than a height from the substrate to a top surface of the fourth portion.

20. The electronic apparatus of claim 19 , wherein the first insulating layer includes a photosensitive organic insulating material.

21. The electronic apparatus of claim 19 , wherein the first insulating layer includes a hole corresponding to the transmission area.

22. The electronic apparatus of claim 19 , wherein the component includes a camera or a sensor using light.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Nakcho
• Kweon Daegi
• Ryu Minyeul

Classifications

• H04M1/0264

  for a camera module assembly · CPC title

• H04M1/026

  Details of the structure or mounting of specific components · CPC title

• H04M1/0266

  for a display module assembly · CPC title

• H01L27/3265

  Electricity · mapped topic

• H01L27/3262 Primary

  Electricity · mapped topic