The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 17, 2004
Filed:
Jan. 05, 2001
Christopher J. A. Barnardo, Bishops Stortford, GB;
Christopher J. N. Fryer, Cottenham, GB;
Christopher Davies, Cambridgeshire, GB;
Paul Cox, Swavesey, GB;
Pelikon Limited, Caerphilly, GB;
Abstract
An electroluminescent lamp or display comprises a first electrode on a substrate interdigitated with a second electrode on the same substrate. A layer of electroluminescent material is provided over the electrodes. The arrangement has the advantage that light from the electroluminescent material does not need to pass through either of the electrodes. The substrate may be a printed circuit board. In an alternative embodiment the second electrode is provided over the layer of electroluminescent material and gaps are provided in the electrode for the emission for light. The electroluminescent lamps may be used to form a seven-segment display.