Organic electroluminescence element and manufacturing method thereof

US8324617B2 · kind B2 · utility

Assignee

• PANASONIC HOLDINGS CORPORATION · JP

Inventors

• Kenji Okumoto · Kyoto, JP
• Hidehiro Yoshida · Osaka, JP

Key dates

• Filing date: Nov 1, 2010
• Grant date: Dec 4, 2012
• Expiry date: Nov 1, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/351

Abstract

The organic electroluminescence element includes a substrate and an anode metal layer above the substrate. The anode metal layer includes an inner region between a pair of outer regions. A metal oxide layer is above the inner region and the outer regions of the anode metal layer. An insulating layer is above the metal oxide layer and the outer regions of the anode metal layer. A hole transport layer is above the metal oxide layer and the inner region of the anode metal layer. An organic luminescent layer is above the hole transport layer. A cathode layer is above the organic luminescent layer for injecting electrons into the organic luminescent layer. A thickness of the metal oxide layer on the inner region of the anode metal layer is greater than a thickness of the metal oxide layer on the outer regions of the anode metal layer.