抄録
Short wavelength LED (TG Purple) based on III-V nitride semiconductors is established in addition to blue and green. This short wavelength LED is realized by adjusting “Indium” chemical content of the well layer. Light output power of “TG Purple” is high and FWHM (full width at half maximum) is narrow. “TG Purple” is applied to light source of white LED (TG True White Hi). Combination of “TG Purple” and various phosphors can generate white light with high luminous intensity and good color rendering. “TG True White Hi” can realize various color temperature by adjusting phosphor combinations. Further “TG True White Hi” shows stable characteristics against operating current and temperature. “TG True White Hi” is very attractive device for both academic and industrial applications. New applications for “TG True White Hi” will be explored.
