In an electroluminescent lamp in which a transparent electrode, a light-emitting film, a reflective insulation layer, a reverse side electrode, and an outside insulation film are laminated onto the inside surface of a transparent film, a reduced-pressure process such as sputtering, electron beam deposition,...http://www.google.ca/patents/US6107735?utm_source=gb-gplus-sharePatent US6107735 - Electroluminescent lamp
