Electroluminescence device

US7800123B2 · kind B2 · utility

Assignee

• KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

• Helmut Bechtel · Aachen, DE
• Wolfgang Busselt · Roetgen, DE
• Peter Josef Schmidt · Aachen, DE

Key dates

• Filing date: May 9, 2006
• Grant date: Sep 21, 2010
• Expiry date: Jul 15, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H20/8516

Abstract

An electroluminescence device includes at least one electroluminescence light source for emitting a primary radiation, such as having wavelengths between 200 nm and 490 nm, and at least one light-converting element, arranged in the path of the rays of the primary radiation, for partial absorption of the primary radiation and emission of a secondary radiation. The light-converting element has a dilatation or expansion in the radiation direction of the primary radiation, which is less than an average scattering length of the primary radiation in the light-converting element.