Organic light emitting diode display and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-11793028-B2
Application number	US-202217743379-A
Country	US
Kind code	B2
Filing date	May 12, 2022
Priority date	Oct 14, 2011
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

An organic light emitting diode (OLED) display including: 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 substrate and covering the organic light emitting diode; a second inorganic layer formed on the first inorganic layer and contacting the first inorganic layer at an edge of the second inorganic layer; an organic layer formed on the second inorganic layer and covering a relatively smaller area than the second inorganic layer; and a third inorganic layer formed on the organic layer, covering a relatively larger area than the organic layer, and contacting the first inorganic layer and the second inorganic layer at an edge of the third 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 first inorganic layer disposed on the substrate and covering the organic light emitting diode;
a second inorganic layer disposed on the first inorganic layer and contacting the first inorganic layer, the second inorganic layer entirely and directly contacting the first inorganic layer;
an 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 organic layer, covering a relatively larger area than the organic layer, and contacting the second inorganic layer,
wherein:
the second inorganic layer covers a same area as the first inorganic layer; and
the first inorganic layer and the third inorganic layer respectively comprise silicon oxide or silicon nitride.

2. The OLED display of claim 1 , wherein the third inorganic layer covers the same area as the first inorganic layer.

3. The OLED display of claim 1 , wherein the first inorganic layer directly contacts the substrate.

4. The OLED display of claim 1 , further comprising a protective layer between the substrate and the first inorganic layer,
wherein the first inorganic layer directly contacts the protective layer.

5. The OLED display of claim 1 , wherein the first inorganic layer comprises metal oxide.

6. The OLED display of claim 1 , wherein the first inorganic layer and the third inorganic layer are respectively formed using one of a chemical vapor deposition (CVD) method, a sputtering method, an atomic layer deposition (ALD) method, and an evaporation method.

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

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

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

10. The OLED display of claim 1 , wherein the 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 organic layer directly contacts 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