Patent · US Expired

Electroluminescent system

US5767622A · kind A · utility

2Cited by

5References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Hueppauff · Stuttgart, DE
Dieter Fenske · Ettlingen, DE
Guenter Schmid · Hemhofen, DE

Key dates

Filing date	Aug 15, 1996
Grant date	Jun 16, 1998
Priority date	—
Expiry date	Aug 15, 2016

Classification

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

Abstract

An electroluminescent system, includes a light emitting substance which emits light when an electric voltage is applied thereto and which contains (a) inorganic particles which are clustered to provide inorganic clusters; and (b) organic ligand envelopes which are composed of an organic ligand material and which each envelope an inorganic cluster whereby the inorganic clusters are stabilized. The light emitting substance may additionally contain organic molecule chains which connect organic ligand envelopes to one another. Thus, the inorganic clusters are spaced apart by a spacing which may be preselected by providing organic molecule chains having a preselected number of atoms in the organic molecule chains.

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