OLED device using reduced drive voltage

US7192659B2 · kind B2 · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Michele L. Ricks · Rochester, US
• Tukaram K. Hatwar · Penfield, US
• Jeffrey P. Spindler · Rochester, US
• Michael L. Boroson · Rochester, US

Key dates

• Filing date: Apr 14, 2004
• Grant date: Mar 20, 2007
• Expiry date: Apr 15, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917

Abstract

An OLED device includes an anode, a first light-emitting layer disposed over the anode, and a second light-emitting layer disposed over the first light-emitting layer. The device also includes a metal-doped organic layer containing an organic electron-transporting material and a low work function metal disposed over the second light-emitting layer, and a cathode disposed over the metal-doped organic layer.