Patent ID: 6891329

Claim:
An EL device comprising a first electrode, a first insulator layer, a thin film inorganic light emitting layer, a second insulator layer and a second electrode layer successively stacked on an electrical insulating substrate, wherein: at least one of said first insulator layer and said second insulator layer comprises barium titanate, magnesium oxide, manganese oxide, at least one oxide selected from barium oxide and calcium oxide, silicon oxide, and optionally yttrium oxide, wherein the amount of magnesium oxide, manganese oxide, yttrium oxide, barium oxide, calcium oxide and silicon oxide with respect to 100 moles of barium titanate is: MgO: 0.1 to 3 moles, MnO: 0.05 to 1.0 mole, Y 2 O 3 : 1 mole or less, BaO + CaO: 2 to 12 moles, and SiO 2 : 2 to 12 moles.