Organic light-emitting display and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2025261505-A1
Application number	US-202519192294-A
Country	US
Kind code	A1
Filing date	Apr 28, 2025
Priority date	Nov 20, 2015
Publication date	Aug 14, 2025
Grant date	—

Abstract

An organic light-emitting display including a substrate, an insulating layer on the substrate, the substrate and the insulating layer having an opening therethrough penetrating, a pixel array on the insulating layer, the pixel array including a plurality of pixels that surround the opening, a first pixel adjacent to the opening from among the plurality of pixels includes a pixel electrode layer, an intermediate layer on the pixel electrode layer, and an opposite electrode layer on the intermediate layer, and a stepped portion on the substrate and adjacent to the opening, the stepped portion having an under-cut step, wherein the intermediate layer including an organic emission layer, and wherein at least one of the intermediate layer and the opposite electrode layer extends toward the opening and is disconnected by the stepped portion.

First claim

What is claimed is:

1 . An organic light-emitting display comprising:
a substrate comprising a first area, a second area surrounding the first area, and a third area between the first area and the second area, the substrate including a top surface, a bottom surface, and a through hole passing from the top surface to the bottom surface, wherein the through hole is arranged in the first area; a thin film transistor in the second area on the substrate; a light-emitting diode in the second area on the thin film transistor and electrically connected to the thin film transistor; a stepped portion arranged in the third area on the substrate; a first layer between the substrate and the stepped portion and overlapping the stepped portion in a first direction perpendicular to the top surface of the substrate, the first layer comprising a same metal as a gate electrode of the thin film transistor; and an encapsulation layer overlapping the light-emitting diode in the second area and the stepped portion in the third area.

2 . The organic light-emitting display of claim 1 , wherein the stepped portion comprises a metal layer, and the metal layer includes a single layer or multi-layers comprising molybdenum (Mo), aluminum (Al), copper (Cu), and/or titanium (Ti).

3 . The organic light-emitting display of claim 1 , wherein the stepped portion and the first layer are spaced from each other in the first direction with an insulating layer between the stepped portion and the first layer.

4 . The organic light-emitting display of claim 1 , wherein the stepped portion comprises an upper layer and a lower layer directly below the upper layer, and a width of an top surface of the lower layer is less than a width of a bottom surface of the upper layer.

5 . The organic light-emitting display of claim 1 , wherein the light-emitting diode comprises a pixel electrode layer electrically connected to the thin film transistor, an opposite electrode layer over the pixel electrode layer, and an intermediate layer between the pixel electrode layer and the opposite electrode layer, and
wherein the intermediate layer comprises a functional layer, the functional layer being arranged in the second area and the third area and being separated into a plurality of portions by the stepped portion.

6 . An organic light-emitting display comprising:
a substrate comprising a first area, a second area surrounding the first area, and a third area between the first area and the second area, the substrate including a top surface, a bottom surface, and a through hole passing from the top surface to the bottom surface, wherein the through hole is arranged in the first area; a thin film transistor in the second area on the substrate; a light-emitting diode in the second area on the thin film transistor and electrically connected to the thin film transistor; an encapsulation layer on the light-emitting diode; and a stack portion comprising a plurality of first layers in the third area on the substrate, the plurality of first layers overlapping each other in a first direction perpendicular to the top surface of the substrate, wherein two adjacent first layers of the plurality of first layers are separated from each other with an insulating layer between the two adjacent first layers, and each of the plurality of first layers includes a metal.

7 . The organic light-emitting display of claim 6 , wherein the plurality of first layers comprises a first-first layer that includes a same metal as a gate electrode of the thin film transistor.

8 . The organic light-emitting display of claim 7 , wherein the plurality of first layers comprises a second-first layer that is over the first-first layer and includes a metal including a single layer or multi-layers comprising molybdenum (Mo), aluminum (Al), copper (Cu), and/or titanium (Ti).

9 . The organic light-emitting display of claim 8 , wherein the second-first layer includes a multi-layer structure including a titanium (Ti) layer, an aluminum (Al) layer, and a titanium (Ti) layer.

10 . The organic light-emitting display of claim 6 , wherein the insulating layer between the two adjacent first layers comprises an inorganic insulating material.

11 . An electronic apparatus comprising:
an organic light-emitting display comprising an array of pixels; and a component below the organic light-emitting display, wherein the organic light-emitting display comprises:
a substrate comprising a first area, a second area surrounding the first area, and a third area between the first area and the second area, the substrate including a top surface, a bottom surface, and a through hole passing
from the top surface to the bottom surface, wherein the through hole is arranged in the first area;
a thin film transistor in the second area on the substrate;
a light-emitting diode in the second area and corresponding to one of the pixels, the light-emitting diode electrically connected to the thin film transistor;
a stepped portion arranged in the third area on the substrate;
a first layer between the substrate and the stepped portion and overlapping the stepped portion in a first direction perpendicular to the top surface of the substrate, the first layer comprising a same metal as a gate electrode of the thin film transistor; and
an encapsulation layer overlapping the light-emitting diode in the second area and the stepped portion in the third area.

12 . The electronic apparatus of claim 11 , wherein the stepped portion comprises a metal layer, and the metal layer includes a single layer or multi-layers comprising molybdenum (Mo), aluminum (Al), copper (Cu), and/or titanium (Ti).

13 . The electronic apparatus of claim 11 , wherein the stepped portion comprises an upper layer and a lower layer directly below the upper layer, and a width of an top surface of the lower layer is less than a width of a bottom surface of the upper layer.

14 . The electronic apparatus of claim 11 , wherein the light-emitting diode comprises a pixel electrode layer electrically connected to the thin film transistor, an opposite electrode layer over the pixel electrode layer, and an intermediate layer between the pixel electrode layer and the opposite electrode layer, and
wherein the intermediate layer comprises a functional layer, the functional layer being arranged in the second area and the third area and being separated into a plurality of portions by the stepped portion.

15 . The electronic apparatus of claim 11 , wherein the component is under the substrate of the organic light-emitting display to be overlapped with the through hole of the substrate, and comprises a camera.

16 . An electronic apparatus comprising:
an organic light-emitting display comprising an array of pixels; and a component below the organic light-emitting display, wherein the organic light-emitting display comprises: a substrate comprising a first area, a second area surrounding the first area, and a third area between the first area and the second area, the substrate including a top surface, a bottom surface, and a through hole passing from the top surface to the bottom surface, wherein the through hole is arranged in the first area; a thin film transistor in the second area on the substrate; a light-emitting diode in the second area on the thin film transistor and electrically connected to the thin film transistor; an encapsulation layer on the light-emitting diode; and a stack portion comprising a plurality of first layers in the third area on the substrate, the plurality of first layers overlapping each other in a fi

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jonghyun
• Kang Kinyeng
• Kim Sunkwang
• Sim Suyeon

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• Y02E10/549

  Organic PV cells · CPC title

• H10K59/124 Primary

  Insulating layers formed between TFT elements and OLED elements · CPC title

• H10K77/10

  Substrates, e.g. flexible substrates · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title