A semiconductor structure includes an active region configured to emit light upon the application of a voltage thereto, a window layer configured to receive the light emitted by the active region, and a plurality of discrete phosphor-containing regions on the window layer and configured to receive light...http://www.google.se/patents/US7863635?utm_source=gb-gplus-sharePatent US7863635 - Semiconductor light emitting devices with applied wavelength conversion materials
