Coated phosphor particles with refractive index adaption

US8946982B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Holger Winkler · Darmstadt, DE
• Reinhold Rueger · Wittenberg, DE

Key dates

• Filing date: Oct 14, 2008
• Grant date: Feb 3, 2015
• Expiry date: Mar 3, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09K11/685
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to coated phosphor particles comprising luminescent particles and at least one, preferably substantially transparent, metal, transition-metal or semimetal oxide coating, and to a process for the production thereof.