Organic light emitting diode display and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9853245-B2
Application number	US-201514608798-A
Country	US
Kind code	B2
Filing date	Jan 29, 2015
Priority date	Oct 14, 2011
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

An organic light emitting diode (OLED) display includes: a substrate; an organic light emitting diode formed on the substrate; a metal oxide layer formed on the substrate and covering the organic light emitting diode; a first inorganic layer formed on the metal oxide layer and covering a relatively larger area than the metal oxide layer; a first organic layer formed on the first inorganic layer and covering a relatively smaller area than the first inorganic layer; and a second inorganic layer formed on the first organic layer, covering a relatively larger area than the first organic layer, and contacting the first inorganic layer at an edge of the second inorganic layer.

First claim

What is claimed is:

1. An organic light emitting diode (OLED) display, comprising:
a substrate;
an organic light emitting diode disposed on the substrate;
a metal oxide layer disposed on the substrate and covering the organic light emitting diode;
a first inorganic layer disposed on the metal oxide layer and covering a relatively larger area than the metal oxide layer;
a first organic layer disposed on the first inorganic layer and covering a relatively smaller area than the first inorganic layer and the metal oxide layer; and
a second inorganic layer disposed on the first organic layer, covering a relatively larger area than the first organic layer, and contacting the first inorganic layer at an edge of the second inorganic layer,
wherein the metal oxide layer directly contacts the organic light emitting diode.

2. The OLED display of claim 1 , further comprising:
a second organic layer disposed on the second inorganic layer and covering a relatively smaller area than the second inorganic layer; and
a third inorganic layer disposed on the second organic layer, covering a relatively larger area than the second organic layer, and contacting the first inorganic layer and the second inorganic layer at an edge of the third inorganic layer.

3. The OLED display of claim 2 , wherein the metal oxide layer comprises aluminum oxide or titanium oxide.

4. The OLED display of claim 2 , wherein the metal oxide layer is formed using one of a chemical vapor deposition (CVD) method, a sputtering method, an atomic layer deposition (ALD) method, and an evaporation method.

5. The OLED display of claim 1 , wherein the first inorganic layer is formed of a mixture of silicon oxide and silicon nitride.

6. The OLED display of claim 1 , wherein the first inorganic layer is formed using an atomic layer deposition (ALD) method.

7. The OLED display of claim 1 , wherein the first organic layer comprises a polymer.

8. The OLED display of claim 1 , wherein the first organic layer is formed by annealing a monomer provided on the first inorganic layer using an evaporation method or an inkjet printing method.

9. The OLED display of claim 2 , wherein the second organic layer comprises a polymer.

10. The OLED display of claim 2 , wherein the second organic layer is formed by annealing a monomer provided on the second inorganic layer using an evaporation method or an inkjet printing method.

11. The OLED display of claim 1 , wherein the second inorganic layer comprises silicon oxide or silicon nitride.

12. The OLED display of claim 1 , wherein the second inorganic layer is formed using one of a chemical vapor deposition (CVD) method, a sputtering method, an atomic layer deposition (ALD) method, and an evaporation method.

13. The OLED display of claim 2 , wherein the third inorganic layer comprises silicon nitride or silicon oxide.

14. The OLED display of claim 2 , wherein the third inorganic layer is formed using one of a chemical vapor deposition (CVD) method, a sputtering method, an atomic layer deposition (ALD) method, and an evaporation method.

15. An organic light emitting diode (OLED) display, comprising:
a substrate;
an organic light emitting diode disposed on the substrate;
a metal oxide layer disposed on the substrate and covering the organic light emitting diode;
a first inorganic layer disposed on the metal oxide layer and covering a relatively larger area than the metal oxide layer;
a first organic layer disposed on the first inorganic layer and covering a relatively smaller area than the first inorganic layer;
a second inorganic layer disposed on the first organic layer, covering a relatively larger area than the first organic layer, and contacting the first inorganic layer at an edge of the second inorganic layer;
a second organic layer disposed on the second inorganic layer and covering a relatively smaller area than the second inorganic layer; and
a third inorganic layer disposed on the second organic layer, covering a relatively larger area than the second organic layer, and contacting the second inorganic layer at an edge of the third inorganic layer.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Jin-Kwang
• Seo Sang-Joon
• Kim Seung-Hun
• Wang Seongmin

Classifications

• H10P76/405

  characterised by their composition, e.g. multilayer masks · CPC title

• H10P76/40

  of masks comprising inorganic materials · CPC title

• H10P76/20

  of masks comprising organic materials · CPC title

• H10P14/69

  Inorganic materials · CPC title

• H10P14/20

  of semiconductor materials · CPC title