Electrical connection in OLED devices

US7642109B2 · kind B2 · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Dustin L. Winters · Webster, US
• Kelvin Nguyen · Rochester, US
• Lee W. Tutt · Webster, US
• Robert Cuffney · Honeoye Falls, US

Key dates

• Filing date: Aug 29, 2005
• Grant date: Jan 5, 2010
• Expiry date: Sep 14, 2026

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/621

Abstract

A method of making an OLED device, including providing a substrate having a first electrode and a conductive bus line provided over the substrate and organic EL media provided over the first electrode and over the conductive bus line; forming a radiation absorbing structure associated with the conductive bus line; exposing the radiation absorbing structure to radiation to produce heat sufficient to ablate a portion of the organic EL media thereby forming an opening in the organic EL media; and forming a second electrode over the organic EL media, and through the opening in the organic EL media thereby forming an electrical connection between the second electrode to the conductive bus line.