A light-emitting ceramic based panel, hereafter termed
"electroceramescent" panel, is herein claimed. The electroceramescent
panel is formed on a substrate providing mechanical support as well as
serving as the base electrode for the device. One or more semiconductive
ceramic layers directly overlay the substrate, and electrical
conductivity and ionic diffusion are controlled. Light emitting regions
overlay the semiconductive ceramic layers, and said regions consist
sequentially of a layer of a ceramic insulation layer and an
electroluminescent layer, comprised of doped phosphors or the equivalent.
One or more conductive top electrode layers having optically transmissive
areas overlay the light emitting regions, and a multi-layered top barrier
cover comprising one or more optically transmissive non-combustible
insulation layers overlay said top electrode regions.