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Electroluminescent Illumination System
United States Patent Number: 5,928,801
  • Dirk J. Broer, Eindhoven University of Technology, Netherlands
  • David Braun, California Polytechnic State University - San Luis Obispo
  • Antonius H.J. Venhuizen, Eindhoven University of Technology, Netherlands
  • Christianne R.M. De Witz, Eindhoven University of Technology, Netherlands
Publication Date
6-27-1999
Abstract
An illumination system has an active layer which includes an electroluminescent material, the active layer being located between an optically transparent electrode layer and a reflective electrode layer. A reflective polarizer is present at a side of the transparent electrode layer facing away from the active layer. A sub-beam incident on the polarizer and having an unwanted polarization is reflected back to the active layer, where it is again partially depolarized to recover a component having the desired state of polarization. The invention also relates to a flat-panel picture display device which includes such an illumination system.
Publisher statement
Also available from the United States Patent and Trademark Office. Website: http://www.uspto.gov.
Citation Information
Dirk J. Broer, David Braun, Antonius H.J. Venhuizen and Christianne R.M. De Witz. "Electroluminescent Illumination System" United States Patent Number: 5,928,801 (1999) p. 1 - 7
Available at: http://works.bepress.com/dbraun/29/