发明名称 |
THIN-FILM EL ELEMENT |
摘要 |
An improved thin-film EL element that exhibits electroluminescence in response to the application of an electric field, that maintains high brightness over a long period, and that exhibits improved brightness in blue display. A light-emitting layer (4) is made of a sulfide of an alkaline earth metal as the base material, and insulating layers (3) and (5) in contact with the light-emitting layer (4) are made of a sulfate or a carbonate of an alkaline earth metal. Further, the light-emitting layer (4) contains Ce as luminescence center in the base material of SrS and is doped with Pb as a coactivator. |
申请公布号 |
WO9208333(A1) |
申请公布日期 |
1992.05.14 |
申请号 |
WO1990JP01426 |
申请日期 |
1990.11.02 |
申请人 |
KABUSHIKI KAISHA KOMATSU SEISAKUSHO |
发明人 |
MIYAKOSHI, ATSUSHI;MATSUNO, AKIRA |
分类号 |
C09K11/77;C09K11/84;H05B33/14;H05B33/18;H05B33/22 |
主分类号 |
C09K11/77 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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