Patent ID: 7863631

Claim:
A light emitting device comprising: a light emitting diode (LED) portion comprising: a first (Al x Ga 1âˆ’x ) 1âˆ’y In y P epitaxial layer of a first conductivity type formed on a growth layer, the growth layer having a lattice constant greater than that of GaAs; an active layer epitaxially grown over the first (Al x Ga 1âˆ’x ) 1âˆ’y In y P epitaxial layer, wherein the active layer comprises one or more layers of material comprising any combination of Al, Ga, In, and P, such that the active layer has a lattice constant greater than the lattice constant of GaAs and approximately equal to the lattice constant of the growth layer, and wherein the active layer emits visible light; and a second epitaxial layer of a second conductivity type grown over the active layer.