Organic light-emitting display apparatus and method of manufacturing the same

Patent metadata

Field	Value
Publication number	US-2016155982-A1
Application number	US-201514738810-A
Country	US
Kind code	A1
Filing date	Jun 12, 2015
Priority date	Dec 2, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

Provided is an organic light-emitting display apparatus including a substrate; a first electrode formed on the substrate; an emission layer formed on the first electrode; and a second electrode formed on the emission layer, wherein the first electrode includes a first layer including silver (Ag); and a second layer disposed on the first layer and comprising oxide of non-silver metal.

First claim

What is claimed is:

1 . An organic light-emitting display apparatus, comprising:
a substrate; a first electrode formed on the substrate; an emission layer formed on the first electrode; and a second electrode formed on the emission layer, wherein the first electrode comprises:
a first layer including silver (Ag); and
a second layer disposed on the first layer and comprising an oxide of a non-silver metal.

2 . The organic light-emitting display apparatus of claim 1 , wherein the non-silver metal comprises at least one selected from antimony (Sb) and bismuth (Bi).

3 . The organic light-emitting display apparatus of claim 1 , further comprising:
a third layer, wherein the third layer is formed between the first layer and the second layer, and wherein the third layer comprises the non-silver metal.

4 . The organic light-emitting display apparatus of claim 1 , further comprising:
a first protective layer, wherein the first protective layer is formed between the substrate and the first layer, and wherein the first protective layer comprises transparent conductive oxide.

5 . The organic light-emitting display apparatus of claim 4 , wherein the first protective layer comprises at least one material selected from the group consisting of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In 2 O 3 ), indium gallium oxide (IGO), and aluminum zinc oxide (AZO).

6 . The organic light-emitting display apparatus of claim 3 , further comprising a second protective layer that is formed between the second layer and the emission layer and comprises transparent conductive oxide.

7 . The organic light-emitting display apparatus of claim 6 , wherein the second protective layer comprises at least one material selected from the group consisting of ITO, IZO, ZnO, In 2 O 3 , IGO, and AZO.

8 . The organic light-emitting display apparatus of claim 1 , wherein the first layer comprises the silver and the non-silver metal alloy.

9 . The organic light-emitting display apparatus of claim 8 , wherein the non-silver metal comprises at least one selected from antimony (Sb) and bismuth (Bi).

10 . The organic light-emitting display apparatus of claim 1 , wherein the second electrode is a reflective electrode.

11 . The organic light-emitting display apparatus of claim 10 , wherein light emitting from the emission layer is discharged toward the substrate.

12 . The organic light-emitting display apparatus of claim 1 , wherein the second electrode is a transparent electrode.

13 . The organic light-emitting display apparatus of claim 12 , wherein light emitting from the emission layer is discharged away from the substrate.

14 . The organic light-emitting display apparatus of claim 1 , wherein the first electrode is an anode, and the second electrode is a cathode.

15 . A method of manufacturing an organic light-emitting display apparatus, the method comprising:
forming a first layer comprising silver on a substrate; forming a second layer comprising a non-silver metal on the first layer; forming a protective layer comprising transparent conductive oxide on the layer comprising the non-silver metal; forming an emission layer on the protective layer; forming an electrode on the emission layer; and forming, by performing a thermal treatment, a third layer comprising an oxide of the non-silver metal between the protective layer and the second layer.

16 . The method of claim 15 , wherein the second layer comprises at least one selected from antimony (Sb) and bismuth (Bi).

17 . The method of claim 15 , further comprising forming a fourth layer comprising a transparent conductive oxide between the substrate and the first layer.

18 . A method of manufacturing an organic light-emitting display apparatus, the method comprising:
forming a first layer comprising an alloy of silver and a non-silver metal on a substrate; forming a protective layer comprising a transparent conductive oxide on the first layer; forming an emission layer on the protective layer; forming a second electrode on the emission layer; and forming, by performing a thermal treatment, a second layer comprising an oxide of the non-silver metal between the protective layer and the first layer.

19 . The method of claim 18 , wherein the non-silver metal comprises at least one selected from antimony (Sb) and bismuth (Bi).

20 . The method of claim 18 , further comprising:
forming a third layer comprising a transparent conductive oxide between the substrate and the first layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Jeong Changoh
• Shin Hyuneok
• Yang Sukyoung
• Yang Chanwoo
• Lee Dongmin

Classifications

• H10K71/40

  Thermal treatment, e.g. annealing in the presence of a solvent vapour · CPC title

• H10K59/876

  comprising a resonant cavity structure, e.g. Bragg reflector pair · CPC title

• H10K50/816

  Multilayers, e.g. transparent multilayers · CPC title

• H10K59/80517 Primary

  Multilayers, e.g. transparent multilayers · CPC title

• H01L2251/306

  Electricity · mapped topic