The invention has for its object to provide a thin-film EL device
comprising a multilayer dielectric layer formed of a lead-based dielectric
material by a solution coating-and-firing process, which provides a
solution to problems in conjunction with its light emission luminance
drops, luminance variations and changes of light emission luminance with
time, thereby achieving high display quality, and a process for the
fabrication of the same. This is accomplished by the provision of a
thin-film EL device comprising a patterned electrode stacked on an
electrically insulating substrate and a dielectric layer having a
multilayer structure wherein at least one lead-based dielectric layer
formed by repeating the solution coating-and-firing process one or more
times and at least one non-lead, high-dielectric-constant dielectric layer
are stacked together, and the uppermost surface layer of the dielectric
layer having such a multilayer structure is defined by the non-lead,
high-dielectric-constant dielectric layer.