KSF

The phosphor used for display is generally required to be a narrow spectrum, and the spectrum can also have a high color purity when passing through the liquid crystal panel to meet the high color purity RGB tricolor needs in the high display light source, while the KSF spectrum is narrower than the nitride spectrum (less than 5nm), the peak wavelength is 630nm, and there is better color performance. The key to achieving high gamut coverage lies in the choice of green and red phosphor, and the red powder in the best scheme to achieve high gamut coverage is fluoride, also known as KSF(K2SiF6:Mn4+).