Top-emitting device and illumination device

US7589463B2 · kind B2 · utility

Assignee

• Novaled GmbH · DE

Inventors

• Sven Murano · Dresden, DE
• Jan Birnstock · Dresden, DE

Key dates

• Filing date: Aug 10, 2006
• Grant date: Sep 15, 2009
• Expiry date: Sep 15, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/3026

Abstract

The invention refers to a top-emitting device, particularly organic light-emitting diode having a layer arrangement applied on a substrate, which layer arrangement comprises a bottom electrode arranged on the substrate and a top electrode through which a light emission is effected, and also a stack of organic layers arranged between the bottom electrode and the top electrode where, at the bottom electrode, a surface facing towards the stack of organic layers is formed in light-reflecting fashion at least in a partial region and being provided with a surface structure that defines a reflection of light generated in the stack of organic layers at the bottom electrode, and where the surface structure is formed by means of mechanical shaping.