Patent · US Expired

Organic electroluminescent component with exciplex formed from a mixed layer of a mixture of hole transporting and electron transporting organic material

US5955836A · kind A · utility

72Cited by

3References

10Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Herbert Friedrich Boerner · Aachen, DE
Wolfgang Busselt · Roetgen, DE
Thomas Justel · Witten, DE
Hans Nikol · Aachen, DE

Key dates

Filing date	Sep 18, 1997
Grant date	Sep 21, 1999
Priority date	—
Expiry date	Sep 18, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH10K50/11
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An organic electroluminescent component with a transparent substrate, a first transparent electrode, a mixed layer comprising a light-emitting exciplex formed by a mixture of a hole transporting and electron transporting organic material, and a second electrode, where no further substances are used besides the hole transporting and the electron transporting compounds in which the redox processes serving for the charge transport are reversible, has a low operating voltage accompanied by a high luminance thanks to the simple layer structure. It has a long lifetime.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.