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

Patent metadata

Field	Value
Publication number	US-9559328-B2
Application number	US-201514738810-A
Country	US
Kind code	B2
Filing date	Jun 12, 2015
Priority date	Dec 2, 2014
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

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;
a second electrode formed on the emission layer,
wherein the first electrode comprises:
a first layer including silver (Ag);
a second layer disposed on the first layer and comprising an oxide of a non-silver metal; and
a second protective layer that is formed between the second layer and the emission layer and comprising transparent conductive oxide.

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 1 , 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.

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

8. The organic light-emitting display apparatus of claim 7 , wherein the non-silver metal comprises at least one selected from antimony (Sb) and bismuth (Bi).

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

10. The organic light-emitting display apparatus of claim 9 , wherein light emitting from the emission layer is discharged toward the substrate.

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

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

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

14. 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.

15. The method of claim 14 , wherein the second layer comprises at least one selected from antimony (Sb) and bismuth (Bi).

16. The method of claim 14 , further comprising forming a fourth layer comprising a transparent conductive oxide between the substrate and the first layer.

17. 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.

18. The method of claim 17 , wherein the non-silver metal comprises at least one selected from antimony (Sb) and bismuth (Bi).

19. The method of claim 17 , 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