Investigation of luminescent properties of low voltage phosphors for the FED applications

Low voltage phosphors for the application to field emission display devices were deposited on indium tin oxide glasses by utilizing an electrophoretic method. The thickness of the phosphor screen was carefully varied in order to get the highest brightness. The excitation and measurement of the phosphor screen were performed by two different methods in this experiment; a field emitter array and a commercial electron gun. Our results showed that 1.5-2 layer of phosphor screen has optimal brightness under our experimental conditions. The above results have the same trend for two types of excitation sources of the phosphor.