Patterning of electrodes in OLED devices

US7221093B2 · kind B2 · utility

Assignees

• Institute of Materials Research and Engineering · SG
• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Mark Auch · Singapore, SG
• Ewald Guenther · Regenstauf, DE
• Soo Jin Chua · Singapore, SG

Key dates

• Filing date: Jun 10, 2002
• Grant date: May 22, 2007
• Expiry date: Jul 9, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01J1/72
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An OLED device having pillars, wherein the pillars serve to pattern a conductive layer during deposition. The profile of the pillars covers the edges of at least one functional layer to protect it from exposure to potentially deleterious substances.