Stable electroluminescent devices

Stock material or miscellaneous articles – Composite – Of inorganic material

Reexamination Certificate

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C428S917000, C252S500000, C313S503000, C313S509000

Reexamination Certificate

active

06916553

ABSTRACT:
An electroluminescent device comprising a transparent or translucent support, a transparent or translucent first electrode, a second conductive electrode and an electroluminescent phosphor layer sandwiched between the transparent or translucent first electrode and the second conductive electrode, wherein the first and second electrodes each comprises a polymer or copolymer of a 3,4-dialkoxythiophene, which may be the same or different, in which the two alkoxy groups may be the same or different or together represent an optionally substituted oxy-alkylene-oxy bridge; a display comprising the above-mentioned electroluminescent device; a lamp comprising the above-mentioned electroluminescent device; manufacturing processes for the above-mentioned electroluminescent devices; and the use of such devices for the integrated backlighting of static and dynamic posters and signage.

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patent: 5766515 (1998-06-01), Jonas et al.
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patent: 6376105 (2002-04-01), Jonas et al.
patent: 2002/0151094 (2002-10-01), Andriessen
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Carter et al.; “Polymeric Anodes for Improved Polymer Light-Emitting Diode Performance,”Applied Physics Letters, American Institute of Physics, vol. 70 (16), 2067-2069 (Apr. 21, 1997).
Search Report for EP 01 00 0098 dated Sep. 5, 2001.

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