COMPOSITE FILM AND SEMICONDUCTOR LIGHT EMITTING DEVICE USING THE SAME

PURPOSE: A composite film and a semiconductor light emitting device using the same are provided to suppress characteristic deviation of the wavelength conversion layer to be minimum by using a phosphor plate or a phosphor sheet of which thickness is controlled. CONSTITUTION: In a composite film and...

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Bibliographic Details
Main Authors FUJII HIRONAKA, NAKAMURA TOSHITAKA, ITO HISATAKA
Format Patent
LanguageEnglish
Korean
Published 28.12.2011
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:PURPOSE: A composite film and a semiconductor light emitting device using the same are provided to suppress characteristic deviation of the wavelength conversion layer to be minimum by using a phosphor plate or a phosphor sheet of which thickness is controlled. CONSTITUTION: In a composite film and a semiconductor light emitting device using the same, a wavelength conversion layer(1) absorbs the part or the whole of excitation light. The wavelength conversion layer includes a phosphor material emitting visible light of which wavelength is longer than the excitation light. A route for excitation light exciting the phosphor material among the wavelength conversion layer is formed in one side of the wavelength conversion layer. A diffusion reflective resin layer(2) is selectively formed on one side surface of the wavelength conversion layer.
Bibliography:Application Number: KR20110060586