Patent ID: 7323721

Claim:
A monolithic, multi-color semiconductor light emitting diode (LED), comprising a multi-bandgap, multi-quantum well (MQW) active light emitting region that emits light at a plurality of spaced-apart wavelength bands or regions ranging from UV to red bands or regions, said multi-bandgap, MQW active light emitting region comprising a MQW layer stack including a plurality of quantum wells spaced apart by respective quantum barriers, wherein said multi-bandgap, MQW layer stack comprises, in overlying sequence, a quantum barrier, a deep blue quantum well, a quantum barrier, a 1 st green quantum well, a quantum barrier, a 2 nd green quantum well, a quantum barrier, a 3 rd green quantum well, a quantum barrier, a 1 st blue quantum well, a quantum barrier, a 2 nd blue quantum well, and a quantum barrier.