EL device
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United States of America Patent
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-
May 10, 2005
Grant Date -
Aug 23, 2001
app pub date -
Dec 8, 2000
filing date -
Apr 8, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The EL device of the present invention has a structure in which a first electrode, a first insulator layer, an electroluminescence-producing light emitting layer, a second insulator layer, and a second electrode layer are successively stacked on an electrical insulating substrate. At least one of the first insulator layer and the second insulator layer has as a main component barium titanate and in addition 0.1 to 3 mole % magnesium oxide, 0.05 to 1.0 mole % manganese oxide, no more than 1 mole % yttrium oxide, 2 to 12 mole % of barium oxide and calcium oxide, and 2-12 mole % silicon oxide.
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