SPHERE-SUPPORTED THIN FILM PHOSPHOR ELECTROLUMINESCENT DEVICES

摘要

The present invention provides an electroluminescent display device using dielectric spheres embedded in a flexible electrically conducting substrate. Each of the spherical dielectric particles has a first portion protruding through a top surface of the substrate and a second portion protruding throu gh the bottom surface of the substrate. An electroluminescent phosphor layer is deposited on the first portion of each spherical dielectric particles and a continuous electrically conductive, substantially transparent electrode laye r is located on the top surfaces of the electroluminescent phosphor layer and areas of the flexible electrically insulating substrate located between the top surfaces of the electroluminescent phosphor layer. A continuous electrically conductive electrode layer coated on the second portion of the spherical dielectric particles and areas of the flexible, electrically insulated substrate located between the second portions of the spherical dielectric particles.