Lighting system for picture or alphanumeric display has transparent carrier plate with rims round edges and foil under plate above backlighting foil with rims round edges

摘要

The transparent carrier plate (1) has a rim (2) round its edge on its underside. It engages with a rim (3) on the upper surface of an electroluminescent foil (4) which has electrical connections. A removable and exchangeable foil (5) is sandwiched between the transparent carrier plate and the electroluminescent foil.