Composite substrate, EL panel using the same, and making method
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United States of America Patent
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May 31, 2005
Grant Date -
May 15, 2003
app pub date -
Oct 29, 2002
filing date -
Oct 29, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A composite substrate includes a substrate, an electrode formed on the substrate, a first dielectric layer of thick film dielectric formed on the electrode, a second dielectric layer formed on the first dielectric layer by a solution coating-and-firing technique, and a buffer layer formed below and/or within the first dielectric layer. The composite substrate keeps the thick-film dielectric layer fully insulating and enables functional thin films formed thereon such as a light emitting layer to perform stable operation, especially stable light emission. An EL panel using the same and a method for preparing the same are also provided.
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