NEW COMPOUND TO BE USED IN RED ORGANIC ELECTROLUMINESCENT ELEMENT AND DEVICE

PROBLEM TO BE SOLVED: To provide a new compound as a material for a red organic EL element and device, and make a EL device fit to the NTSC standard. SOLUTION: The new compound is obtained by bonding a benzene ring at the second and the third positions of 2,5-dimethyl-4-(2,2-dicyano)pyran of an elec...

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Bibliographische Detailangaben
Hauptverfasser:	CHIN RYOKICHI, O BUNKOKU, RO HAKUGEN, KO SHUNNO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMISTRY DYES ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a new compound as a material for a red organic EL element and device, and make a EL device fit to the NTSC standard. SOLUTION: The new compound is obtained by bonding a benzene ring at the second and the third positions of 2,5-dimethyl-4-(2,2-dicyano)pyran of an electron attracting group and bonding a conjugated electron donating group at the fifth position. By using the compound, the electroluminescence is shifted to a red spectral region, and a red EL element having higher purity is obtained. The compound is easily synthesized, and the production yield can be increased from a production yield in a conventional technology. Further, a red organic EL device produced from the compound fits the existing NTSC standard.