LIGHT EMITTING DIODE, ITS MANUFACTURING METHOD AND WHITE LIGHT ILLUMINATION DEVICE

PROBLEM TO BE SOLVED: To provide a light emitting diode prepared by combining an LED(light emitting diode) chip employing a galium nitride compound semiconductor as a light emitting layer with a new fluorescent body and having a sufficient brightness for white light illumination, and to provide its...

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Bibliographic Details
Main Authors OKUYAMA MINEO, YASUDA TAKENORI
Format Patent
LanguageEnglish
Published 02.04.2004
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PROBLEM TO BE SOLVED: To provide a light emitting diode prepared by combining an LED(light emitting diode) chip employing a galium nitride compound semiconductor as a light emitting layer with a new fluorescent body and having a sufficient brightness for white light illumination, and to provide its manufacturing method. SOLUTION: A fluorescent body consisting of an oxynitride glass added with a light emitting center is combined with a blue LED chip having a monochromatic light emitting spectrum whose peak wavelength is within 360nm-530nm, to manufacture a white light emitting diode. Especially, a Ca-Al-Si-O-N oxynitride glass added with Eu2+ion as a light emitting center is employed as the fluorescent body. COPYRIGHT: (C)2004,JPO
Bibliography:Application Number: JP20020263477