Color simulation to demonstrate the effects of the filter layer with CoAl ₂ O ₄ on inner face of CRT panel

Abstract Nanosize cobalt aluminate(CoAl2O4) power was coated as filter layer for us to improve the color purity and contrast performances on the inner face of CRT panel. We simulated color properties by measuring the transmittance and thickness of the coated filter layer. Contrast performance could be improved and color gamut was also changed by the selective light absorption of filter layer at 580∼605 nm.