Patent ID: 7361937
Filing Date: 2008-04-22
Classification: G02F,H01L

Abstract:
1. A white-light emitting device, comprising: a first die including a first semiconductor light-emitting layer emitting a first primary color light; and a second die including a second semiconductor light-emitting layer emitting a second primary color light, and a third semiconductor light-emitting layer mounted proximate to said second semiconductor light-emitting layer and emitting a third primary color light; said first primary color light being combined with said second and third primary color lights so as to produce white light, wherein said second die further includes a p-type cladding layer and an n-type cladding layer, said second and third semiconductor light-emitting layers being disposed between said p-type and n-type cladding layers, and wherein said second semiconductor light-emitting layer includes a first barrier film proximate to said p-type cladding layer, a second barrier film proximate to said third semiconductor light-emitting layer, and a carrier confining film between said first and second barrier films and having a plurality of alternating peaks and valleys, said carrier confining film having an energy gap smaller than those of said first and second barrier films.