Display apparatus

Patent metadata

Field	Value
Publication number	US-12041809-B2
Application number	US-202017122960-A
Country	US
Kind code	B2
Filing date	Dec 15, 2020
Priority date	May 14, 2020
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

A display apparatus includes a substrate having adjacent first and second areas for displaying an image, the first area including a transmission area and a pixel area, a first inorganic insulating layer on the transmission area and the pixel area, a thickness of the first inorganic insulating layer in the transmission area being less than a thickness of the first inorganic insulating layer in the pixel area, a second inorganic insulating layer on the first inorganic insulating layer to correspond to the pixel area, and defining a transmission hole corresponding to the transmission area, a first organic insulating layer on the second inorganic insulating layer, and a second organic insulating layer on the first organic insulating layer.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate having adjacent first and second areas for displaying an image, the first area comprising a transmission area and a pixel area;
a first inorganic insulating layer on the transmission area and the pixel area;
a second inorganic insulating layer on the first inorganic insulating layer to correspond to the pixel area, and defining a transmission hole corresponding to the transmission area;
a first organic insulating layer on the second inorganic insulating layer;
a second organic insulating layer on the first organic insulating layer, and defining a second hole corresponding to the transmission area;
a pixel electrode on the second organic insulating layer; and
a third organic insulating layer comprising a pixel defining layer covering an edge of the pixel electrode, and exposing a central portion thereof,
wherein an inner side surface of the transmission hole is clad with the first organic insulating layer, and
wherein a width of the second hole is greater than a width of the transmission hole.

2. The display apparatus of claim 1 , wherein the first organic insulating layer contacts the first inorganic insulating layer in the transmission area.

3. The display apparatus of claim 1 , wherein the first organic insulating layer directly contacts the inner side surface of the transmission hole.

4. The display apparatus of claim 1 , wherein the first organic insulating layer defines a first hole corresponding to the transmission area, and
wherein the width of the second hole is greater than the width of the first hole.

5. A display apparatus comprising:
a substrate having adjacent first and second areas for displaying an image, the first area comprising a transmission area and a pixel area;
a first inorganic insulating layer on the transmission area and the pixel area, a thickness of the first inorganic insulating layer in the transmission area being less than a thickness of the first inorganic insulating layer in the pixel area,
a transistor including a gate electrode on the first inorganic insulating layer in the pixel area;
a second inorganic insulating layer on the first inorganic insulating layer to correspond to the pixel area, covering the gate electrode, and defining a transmission hole corresponding to the transmission area;
a first organic insulating layer on the second inorganic insulating layer;
a second organic insulating layer on the first organic insulating layer, and defining a second hole corresponding to the transmission area;
a pixel electrode on the second organic insulating layer; and
a third organic insulating layer comprising a pixel defining layer covering an edge of the pixel electrode, exposing a central portion thereof, and defining a third hole corresponding to the transmission area,
wherein the second organic insulating layer directly contacts an inner side surface of the transmission hole, and
wherein a width of the third hole is greater than a width of the second hole.

6. The display apparatus of claim 5 , wherein a width of the second hole is less than a width of the transmission hole.

7. The display apparatus of claim 6 , wherein the first organic insulating layer defines a first hole corresponding to the transmission area, and
wherein a width of the second hole is less than the width of the first hole.

8. The display apparatus of claim 1 , wherein a thickness of the first inorganic insulating layer in the transmission area is about 2,500 Å or more.

9. The display apparatus of claim 1 , further comprising:
an intermediate layer on the pixel electrode and comprising an emission layer;
and an opposite electrode on the intermediate layer.

10. The display apparatus of claim 9 , wherein the intermediate layer and the opposite electrode are on an entirety of the first area.

11. The display apparatus of claim 10 , further comprising a thin-film encapsulation layer comprising a first inorganic encapsulation layer on the opposite electrode, a second inorganic encapsulation layer on the first inorganic encapsulation layer, and an organic encapsulation layer between the first inorganic encapsulation layer and the second inorganic encapsulation layer.

12. The display apparatus of claim 9 , wherein the intermediate layer and the opposite electrode each define an opening corresponding to the transmission area.

13. The display apparatus of claim 1 , wherein the second inorganic insulating layer comprises a buffer layer directly contacting the first inorganic insulating layer, a gate insulating layer on the buffer layer, and an interlayer insulating layer on the gate insulating layer.

14. The display apparatus of claim 13 , further comprising a metal layer between the first inorganic insulating layer and the buffer layer.

15. The display apparatus of claim 14 , wherein the metal layer is configured to receive a constant voltage.

16. The display apparatus of claim 13 , further comprising a thin-film transistor on the pixel area and comprising:
a semiconductor layer between the buffer layer and the gate insulating layer;
a gate electrode between the gate insulating layer and the interlayer insulating layer; and
an electrode layer between the interlayer insulating layer and the first organic insulating layer.

17. The display apparatus of claim 1 , further comprising:
a first pixel in the pixel area; and
a second pixel in the second area,
wherein, when the first pixel and the second pixel emit a same color, an emission area of the first pixel being greater than an emission area of the second pixel.

18. The display apparatus of claim 1 , wherein a resolution of the first area is less than a resolution of the second area, and
wherein the substrate comprises a first organic base layer, a second organic base layer, and an inorganic base layer therebetween.

19. A display apparatus comprising:
a substrate having adjacent first and second areas for displaying an image, the first area comprising a transmission area and a pixel area;
a first inorganic insulating layer on the transmission area and the pixel area;
a second inorganic insulating layer on the first inorganic insulating layer to correspond to the pixel area, and defining a transmission hole corresponding to the transmission area;
a bottom metal layer disposed between the first inorganic insulating layer and the second inorganic insulating layer in the pixel area;
a first organic insulating layer on the second inorganic insulating layer, and defining a first hole corresponding to the transmission area;
a second organic insulating layer on the first organic insulating layer, and defining a second hole corresponding to the transmission area, a width of the second hole being greater than a width of the first hole;
a pixel electrode on the second organic insulating layer; and
a third organic insulating layer comprising a pixel defining layer covering an edge of the pixel electrode, and exposing a central portion thereof,
wherein a thickness of the first inorganic insulating layer in the transmission area is about 2,500 Å or more.

20. The display apparatus of claim 19 , wherein the first inorganic insulating layer comprises a barrier layer.

21. The display apparatus of claim 20 , wherein the second inorganic insulating layer comprises a buffer layer on the barrier layer, a gate insulating layer on the buffer layer, and an interlayer insulating layer on the gate insulating layer, and
wherein the display apparatus further c

Assignees

• Samsung Display Co Ltd

Inventors

• Bang Kiho
• Kim Eunhye
• Jung Eunae
• Choi Wonsuk

Classifications

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K50/844 Primary

  Encapsulations · CPC title

• H10K50/8426

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

• H10D86/451

  characterised by the compositions or shapes of the interlayer dielectrics · CPC title

• H10K59/121 Primary

  characterised by the geometry or disposition of pixel elements · CPC title