Researchers at OSRAM Opto Semiconductors have succeeded in manufacturing high-performance blue and white LED prototypes in which the light-emitting gallium-nitride layers are grown on silicon wafers ...
Focusing on mobile-appliance markets, the UT230, XB500, and XT290 chip LEDs backlight blue and white keypads, power the flash in digital cameras, and provide LCD backlighting, respectively. The UT230 ...