Fabrication of organic light emitting diode using selective printing of conducting polymer layers

US6794676B2 · kind B2 · utility

Assignee

• OSRAM Opto Semiconductors GmbH · DE

Inventors

• Hash Pakbaz · Bloomingdale, US
• Karl Pichler · Wappingers Falls, US

Key dates

• Filing date: Feb 25, 2003
• Grant date: Sep 21, 2004
• Expiry date: Feb 25, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K59/8722

Abstract

A novel method for fabricating an OLED display is disclosed wherein the conducting polymer layer is selectively deposited over the surface of the display such that the conducting polymer is kept away from areas where its presence is either not required for the resulting structure or is difficult to remove with usual techniques, such as laser ablation. Other polymer layers may be deposited uniformly over the surface of the display by way of spin coating or other suitable methods known in the art.