| 摘要 |
The invention aims to solve the problem of prior art EL devices that undesirable defects form in dielectric layers, and especially the problems of EL devices having dielectric layers of lead-base dielectric material including a lowering, variation and change with time of the luminance of light emission, and thereby provide an EL device ensuring high display quality without increasing the cost. Such objects are achieved by an EL device comprising at least an electrically insulating substrate 11 and a structure including an electrode layer 12, a dielectric layer 13, 14, 15, a light emitting layer 17 and a transparent electrode layer 19 stacked on the substrate 11, wherein the dielectric layer is a laminate including a first thick-film ceramic high-permittivity dielectric layer 13 whose composition contains at least lead, a second high-permittivity layer 14 whose composition contains at least lead, and a third high-permittivity layer 15 whose composition is free of at least lead.
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