Organic el device having bank with groove, organic el display panel, and method for manufacturing the organic el device

US7888867B2 · kind B2 · utility

Assignee

• PANASONIC HOLDINGS CORPORATION · JP

Inventors

• Hidehiro Yoshida · Osaka, JP
• Arinobu Kanegae · Chiba, JP
• Shuhei Nakatani · Osaka, JP
• Keisei Yamamuro · Osaka, JP

Key dates

• Filing date: Dec 25, 2008
• Grant date: Feb 15, 2011
• Expiry date: Dec 25, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/135

Abstract

Disclosed is an organic EL device which comprises an organic light-emitting layer having a uniform thickness even though the organic light-emitting layer is formed by a coating method. Specifically disclosed is an organic EL device comprising a substrate, an anode arranged on the substrate, an organic light-emitting layer arranged on the anode, and a bank defining an arrangement region for the organic light-emitting layer. A groove is formed on the upper surface of the bank, and the outer or inner edge of the groove defines the border of the organic light-emitting layer.