An electroluminescent lamp unit includes a flat deformable substrate of preselected size having smaller sheet-form flexible electroluminescent lamps secured face-to-face at preselected positions on a surface of the substrate, the lamps connected with conductive traces on the substrate. The...http://www.google.fr/patents/US5811930?utm_source=gb-gplus-shareBrevet US5811930 - Electroluminescent lamp devices and their manufacture
Electroluminescent lamp devices and their manufacture