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Progress of electroluminescence display development at HHI

: Velthaus, K.-O.

Thumm, M. ; Informationstechnische Gesellschaft -ITG-, Fachausschuß 8.6 Vakuumelektronik und Displays:
Displays and vacuum electronics : April 29 - 30, 1998, Garmisch-Partenkirchen
Berlin: VDE-Verlag, 1998 (ITG-Fachbericht 150)
ISBN: 3-8007-2353-0
Conference "Vacuum Electronics and Displays" <8, 1998, Garmisch-Partenkirchen>
Fraunhofer HHI ()
brightness; cerium; colour displays; electroluminescence; electroluminescent displays; ii-vi semiconductors; stability; strontium compounds; electroluminescence display; srs:ce el display devices; heinrich-hertz-institut; display device efficiency; blue performance; SrS:Ce process; filtered blue luminance; driving frequency; material development; inorganic EL; full color displays; full color active matrix display; silicon substrate; vga picture; view-finders; virtual reality applications; 60 Hz; 1 In; SrS:Ce-Si; Si

Over the past 4 years, SrS:Ce EL display devices have been steadily improved at Heinrich-Hertz-Institut (HHI) up to efficiencies of 2 lm/W with improved blue performance and stability. For the new SrS:Ce process, a filtered blue luminance exceeding 25 cd/m2 at 60 Hz driving frequency could be achieved. The successful basic material development will enable inorganic EL to provide full color displays in the near future. A special application for this approach is a very small and lightweight full color active matrix display on silicon developed by Planar, which provides a VGA picture on a 1 inch diagonal for small view-finders and virtual reality applications.