Ion beam method for removing an organic light emitting material

US7731860B2 · kind B2 · utility

Assignee

• Microemissive Displays Limited · GB

Inventors

• Alastair Buckley · Sheffield, GB
• Georg Bodammer · Munich, DE
• Carsten Giebeler · Edinburgh, GB

Key dates

• Filing date: Apr 2, 2004
• Grant date: Jun 8, 2010
• Expiry date: May 13, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/231

Abstract

A method of removing an organic, preferably polymeric, light-emitting material (4) from defined areas of a substrate (1) comprises the steps of arranging a shadow mask (5) to overlie the organic material other than in the defined areas, and applying a beam of ions (7) to the defined areas through the mask. The method is useful in forming organic light-emitting diode arrays.