Display apparatus

Patent metadata

Field	Value
Publication number	US-2024324296-A1
Application number	US-202318380969-A
Country	US
Kind code	A1
Filing date	Oct 17, 2023
Priority date	Mar 24, 2023
Publication date	Sep 26, 2024
Grant date	—

Abstract

A display apparatus includes a first sub-pixel electrode arranged in a sub-pixel area, a conductive bank layer disposed on the first sub-pixel electrode, including a first opening, a first conductive layer and a second conductive layer, wherein the first opening overlaps the first sub-pixel electrode, a first intermediate layer disposed on the first sub-pixel electrode through the first opening, a first opposite electrode disposed on the first intermediate layer, an insulating layer disposed between the conductive bank layer and an edge of the first sub-pixel electrode in a non-sub-pixel area around the sub-pixel area, and an organic layer including an opening overlapping the first opening of the conductive bank layer, and including a first organic material portion overlapping the insulating layer in the non-sub-pixel area.

First claim

What is claimed is:

1 . A display apparatus comprising:
a first sub-pixel electrode arranged in a sub-pixel area; a conductive bank layer disposed on the first sub-pixel electrode, including a first opening, a first conductive layer and a second conductive layer, wherein the first opening overlaps the first sub-pixel electrode; a first intermediate layer disposed on the first sub-pixel electrode; a first opposite electrode disposed on the first intermediate layer; an insulating layer disposed between the conductive bank layer and an edge of the first sub-pixel electrode in a non-sub-pixel area which surrounds the sub-pixel area; and an organic layer including an opening overlapping the first opening, and including a first organic material portion overlapping the insulating layer in the non-sub-pixel area.

2 . The display apparatus of claim 1 , wherein the conductive bank layer includes a first hole arranged in the non-sub-pixel area, wherein the first organic material portion is disposed inside the first hole.

3 . The display apparatus of claim 2 , wherein the conductive bank layer further includes a second hole arranged in the non-sub-pixel area and disposed adjacent to the first hole, and wherein a second organic material portion of the organic layer is disposed inside the second hole, wherein the first organic material portion and the second organic material portion are spaced apart from each other in a plan view.

4 . The display apparatus of claim 2 , wherein the first hole of the conductive bank layer passes through the conductive bank layer, and the first organic material portion is in direct contact with an upper surface of the insulating layer through the first hole.

5 . The display apparatus of claim 1 , wherein a bottom surface of the organic layer is in direct contact with an upper surface of the second conductive layer.

6 . The display apparatus of claim 1 , wherein the second conductive layer is disposed on an upper surface of the first conductive layer, and wherein the second conductive layer includes a tip protruding from a point at which a lateral surface of the first conductive layer facing the first opening meets a bottom surface of the second conductive layer.

7 . The display apparatus of claim 6 , further comprising:
a first dummy intermediate layer disposed on the tip and including a same material as a material of the first intermediate layer; and a first dummy opposite electrode disposed on the first dummy intermediate layer and including a same material as a material of the first opposite electrode.

8 . The display apparatus of claim 1 , wherein the organic layer includes an organic insulating material.

9 . The display apparatus of claim 8 , wherein the organic layer includes black pigment.

10 . A display apparatus comprising:
a first sub-pixel electrode and a second sub-pixel electrode disposed adjacent to each other; a conductive bank layer including a first opening overlapping the first sub-pixel electrode, and a second opening overlapping the second sub-pixel electrode, and including a first conductive layer and a second conductive layer disposed on the first conductive layer; a first intermediate layer disposed on the first sub-pixel electrode; a first opposite electrode disposed on the first intermediate layer; a second intermediate layer disposed on the second sub-pixel electrode; a second opposite electrode disposed on the second intermediate layer; an insulating layer overlapping an edge of the first sub-pixel electrode and an edge of the second sub-pixel electrode and disposed under the conductive bank layer in a non-sub-pixel area between the first sub-pixel electrode and the second sub-pixel electrode; and an organic layer including a first organic layer opening overlapping the first opening, a second organic layer opening overlapping the second opening, and a first organic material portion arranged in the non-sub-pixel area.

11 . The display apparatus of claim 10 , wherein the conductive bank layer includes a first hole arranged in the non-sub-pixel area, wherein at least a portion of the first organic material portion is disposed inside the first hole.

12 . The display apparatus of claim 10 , wherein a bottom surface of the organic layer is in direct contact with an upper surface of the second conductive layer.

13 . The display apparatus of claim 11 , wherein a depth of the first hole is less than a thickness of the conductive bank layer.

14 . The display apparatus of claim 11 , wherein a depth of the first hole is equal to a thickness of the conductive bank layer, and wherein at least a portion of the organic material portion is in direct contact with an upper surface of the insulating layer.

15 . The display apparatus of claim 10 , wherein a first portion of the second conductive layer includes a tip protruding to the first opening from a point at which a lateral surface of the first conductive layer facing the first opening meets a bottom surface of the second conductive layer, and
a second portion of the second conductive layer includes a tip protruding to the second opening from a point at which a lateral surface of the first conductive layer facing the second opening meets a bottom surface of the second conductive layer.

16 . The display apparatus of claim 15 , further comprising:
a first dummy intermediate layer formed on the tip protruding to the first opening and including a same material as a material of the first intermediate layer; a first dummy opposite electrode formed on the first dummy intermediate layer and including a same material as a material of the first opposite electrode; a second dummy intermediate layer formed on the tip protruding to the second opening and including a same material as a material of the second intermediate layer; and a second dummy opposite electrode formed on the second dummy intermediate layer and including a same material as a material of the second opposite electrode.

17 . The display apparatus of claim 11 , wherein the conductive bank layer further includes a second hole disposed adjacent to the first hole, wherein the first hole is spatially separated from the second hole.

18 . The display apparatus of claim 17 , wherein the organic layer further includes a second organic material portion, wherein at least a portion of the second organic material portion is disposed inside the second hole, and
wherein the first organic material portion and the second organic material portion are spaced apart from each other.

19 . The display apparatus of claim 10 , wherein the organic layer includes an organic insulating material.

20 . The display apparatus of claim 19 , wherein the organic layer includes black pigment.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Seonhwa
• Kim Youngjun
• Seo Dongkyun
• Jung Hyunyoung

Classifications

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/122 Primary

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

• H10K59/1201 Primary

  Manufacture or treatment · CPC title