Patent · US Expired

Organic electroluminescent component with charge transport layer

US5989738A · kind A · utility

26Cited by

12References

4Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Markus Haase · Aachen, DE
Ulrich Kynast · Roetgen, DE
Herbert Friedrich Boerner · Aachen, DE
Cornelis Reinder Ronda · Aachen, DE

Key dates

Filing date	Jun 24, 1997
Grant date	Nov 23, 1999
Priority date	—
Expiry date	Jun 24, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S428/917
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An organic electroluminescent component with a layer arrangement includes a first electrode layer, an inorganic layer which conducts electrons, one or several optoelectronically active layers with at least one light-emitting layer which comprises an organic emitter, and a second electrode layer. The inorganic layer which conducts electrons is an N-type conducting oxide of a transition metal chosen from the group consisting of zirconium oxide, hafnium oxide, vanadium oxide, barium titanate, barium-strontium titanate, strontium titanate, calcium titanate, calcium zirconate, potassium tantalate, and potassium niobate.

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