Up converters and GaAs based semiconductor light source system for large color gamut display and projection displays

摘要

Method and system for an up conversion lighting system for use with displays. The system includes an up converter-semiconductor light source for emitting an up conversion emission and a spectrally selective optical element in the path of the emission for selectively passing selected wavelengths. The optical element has a coating selected to pass selected wavelengths. The up converter-semiconductor light source includes an up converter for emitting the up conversion emission, a semiconductor light source coupled with the up converter to excite an up conversion material within the up converter to emit an up conversion emission and a spatial light modulator for modulating the up conversion emission. For a full color display, the up converter includes a red, green and blue up converter and a separate a light source coupled with the red, green and blue up converters. The spectrally selectively optical element can be a spectrally selectively beam splitter having a film coating that is selected to transmit selected wavelengths.