Electroluminescent device with a transparent cathode

US7642714B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Helmut Bechtel · Aachen, DE
• Wolfgang Busselt · Roetgen, DE
• Herbert Friedrich Borner · Hamburg, DE
• Dietrich Bertram · Aachen, DE

Key dates

• Filing date: Jun 19, 2003
• Grant date: Jan 5, 2010
• Expiry date: Jun 19, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K50/85

Abstract

An electroluminescent device includes a transparent cathode and a substrate. A laminated body is provided Adjacent to the substrate. The laminated body includes a first electrode, an electroluminescent layer and a second metallic electrode. The second electrode is covered with transparent dielectric layers which increase the transmission of light through the second metallic electrode and serve as filters.