OLEDS containing thermally stable glassy organic hole transporting materials

US6387544B1 · kind B1 · utility

Assignees

• THE TRUSTEES OF PRINCETON UNIVERSITY · US
• University of Southern California · US

Inventors

• Mark E. Thompson · Villa Park, US
• Loy Douglas · Lakewood, US
• Stephen R. Forrest · Ann Arbor, US
• Bryan Koene · Blacksburg, US
• Diarmuid O'Brien · Princeton, US

Key dates

• Filing date: Dec 2, 1998
• Grant date: May 14, 2002
• Expiry date: Dec 2, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/917
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Organic light emitting devices comprising a heterostructure for producing electroluminescence having a hole transporting layer with a glass structure. The hole transporting layer comprises a compound having a symmetric molecular structure. The end groups of the symmetric molecule are hole transporting diaryl amine moieties.