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US 5,990,615 AGranted
Organic electroluminescent display with protective layer on cathode and an inert medium
AssigneeNEC Corporation
InventorsYoshikazu Sakaguchi, Masako Kimura
Life of this patent
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Abstract
In an organic EL element having a cap sealing structure, a cathode is coated with an insulative protecting layer of a fluorine system polymer or an oxide insulative material and an inert medium is filled within the cap sealing structure.
Claims9
An organic electroluminescent element comprising:
- a pair of electrodes sandwiching a laminated structure including an organic luminescent material therebetween to provide a organic electroluminescent element body;
- a case for sealing said element body therein;
- an inert medium filled in said case;
- and an insulative protecting layer provided on a cathode of said electrodes so as to isolate said cathode from said inert medium.
1 more element
Dependencies are inferred from the claim text.