METHOD OF MANUFACTURING PHOSPHOR, LIGHT-EMITTING DEVICE AND IMAGE DISPLAY APPARATUS

PROBLEM TO BE SOLVED: To provide a method of manufacturing a first phosphor of which the emission spectrum shape well matches the color filter of three primary colors of light, a light-emitting device including the first phosphor, and an image display apparatus that uses the light-emitting device. S...

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Bibliographic Details
Main Authors TAKAHASHI KOUSEI, HARADA MASAMICHI, HIROSAKI NAOTO
Format Patent
LanguageEnglish
Published 15.01.2009
Subjects
ADHESIVES
BASIC ELECTRIC ELEMENTS
CHEMISTRY
DYES
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
SEMICONDUCTOR DEVICES
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Summary:PROBLEM TO BE SOLVED: To provide a method of manufacturing a first phosphor of which the emission spectrum shape well matches the color filter of three primary colors of light, a light-emitting device including the first phosphor, and an image display apparatus that uses the light-emitting device. SOLUTION: The light-emitting device includes a semiconductor light-emitting element emitting exciting light and the first phosphor absorbing the exciting light and emitting a green light. The first phosphor is a solid solution comprising an aluminum element and a metal element M selected from Mn, Ce and Eu in the crystals of an oxynitride having a β-type Si3N4crystal structure, and having an amount of oxygen which is not higher than 0.8 mass% in the crystals. Furthermore, the image display apparatus containing the light-emitting device as a backlight source. The method of manufacturing the first phosphor is also provided. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070318468