Patent · US Expired

Electroluminescent material comprising a doped conducting oxide

US6271626A · kind A · utility

5Cited by
9References
45Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 10, 1998
Grant dateAug 7, 2001
Priority date—
Expiry dateAug 10, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05B33/145
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An electroluminescent substance suitably comprising a conducting material such as a conducting oxide and at least one light-emitting dopant is disclosed. Preferred embodiments of the electroluminescent substance include rare earth dopants present within the conducting oxide such that the dopant materials generate light when electrically stimulated. Common dopant materials include erbium, ytterbium, praseodymium and other rare earth elements. The electroluminescent material is suitable for use, for example, in an electronic display or as a light source for many applications including Sagnac rotation sensors such as fiber optic gyroscopes.

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