Phosphor-in-glass with Nd-doped glass for a white LED with a wide color gamut

The Lu3Al5O12:Ce3+ and CaAlSiN3:Eu2+ content were adjusted to achieve white emission for liquid crystal display (LCD) applications. The silicate glass was doped with varying concentrations of Nd2O3 to modify the photoluminescence spectra of the wLED, by the hypersensitive absorption of the Nd3+:4I9/2→4G5/2,2G7/2 transition.

Color coordination, color rendering index and color co-related temperature of the PiG mounted LEDs were modified by the introduction of Nd3+. The color gamut of the wLED was monitored and found to have effectively improved with theNd3+-doped silicate glass.