Patent ID: 6590233
Filing Date: 2003-07-08
Classification: H01L

Abstract:
A semiconductor light emitting device comprising:a first semiconductor light emission element for emitting color light; a second semiconductor light emission element; said first semiconductor light emission element being composed of an InGAlP series material; said first semiconductor light emission element having an active layer which is composed of a plurality of composite luminous layers each of which emits a color light with a different wave length from each other; said plurality of luminous layers having luminescence spectra partially overlapped with each other; and each of said plurality of composite luminous layers further composed of a plurality of luminous layers each of which emits a color light with substantially the same wave length; wherein said plurality of composite luminous layers are mutually divided and have a multiple quantum well structure; said plurality of luminous layers are composed of InGaAlP series materials having substantially the same Al composition ratio and, said luminous layers are composed of InGaAlP series materials having a different Al composition ratio from each other.