| 摘要 |
On a back electrode 1, a sealing polymer layer 3 of low water-permeability serving as an insulating layer, a plurality of dielectric cells 9 containing fluorescent particles 7 embedded in a binding material 5 of low-leakage-current high dielectric constant, a binding material layer 11, and a transparent conductive layer 13 made of ITO are built up in a multilayer structure and a transparent protecting film 15 made of a PET film is lastly formed on the transparent conductive layer 13. A luminous layer is composed of the dielectric cells 9. The fluorescent particles 7 contained in the luminous layer are made of Zinc, Sulfur, Manganese, Copper, Silicon, and Titanium. The mass ratio of Zinc is 1, that of Sulfur 3.1, that of Manganese 0.3, that of Copper 0.7, that of Silicon 3.5, and that of Titanium 5.6, and the sum of these numeric values is 14.2. <IMAGE>
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