Organic EL display panel

US8203158B2 · kind B2 · utility

Assignee

• PANASONIC HOLDINGS CORPORATION · JP

Inventors

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

Key dates

• Filing date: Jun 21, 2010
• Grant date: Jun 19, 2012
• Expiry date: Dec 2, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/122

Abstract

An organic EL display panel comprising a substrate and an organic light-emitting element R emitting red light, an organic light-emitting element G emitting green light and an organic light-emitting element B emitting blue light which are arranged on the substrate, wherein each of the organic light-emitting element has a concavely curved pixel electrode which is a reflective electrode, a functional layer formed with coating over the pixel electrode, an organic light emitting layer arranged on the functional layer, a counter electrode which is a transparent electrode arranged over the organic light emitting layer and a bank defining the functional layer formed with coating, the element R, the element G and the element B have different amount of the functional layer and the element R, the element G and the element B have different curvature radius of the concavely curved pixel electrode.