WAVELENGTH CONVERTED SEMICONDUCTOR LIGHT EMITTING DEVICE

PURPOSE: A wavelength conversion type semiconductor light emitting device is provided to reduce color property deviation by inversely designing the thickness of a wavelength conversion part which includes a wavelength conversion material with particle size distribution. CONSTITUTION: A wavelength co...

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Bibliographic Details
Main Authors PARK, HUN YONG, KIM, YONG TAE
Format Patent
LanguageEnglish
Korean
Published 04.01.2012
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PURPOSE: A wavelength conversion type semiconductor light emitting device is provided to reduce color property deviation by inversely designing the thickness of a wavelength conversion part which includes a wavelength conversion material with particle size distribution. CONSTITUTION: A wavelength conversion part(19) is located on the upper side of a light emitting diode chip(15). The wavelength conversion part comprises transparent resin(19b) which contains phosphor powder(19a). The average thickness(T1) of a domain of the wavelength conversion part which is located on the upper side of the light emitting diode chip is bigger than the average thickness(T2) of a domain of the wavelength conversion part of the side.
Bibliography:Application Number: KR20100062252