Abstract
Gas desorption from a field emitter array (FEA) cathode and phosphor screen anode in a flat panel display during a lifetime operation can affect cathode electron emission and degrade display performance and uniformity. We have measured the outgassing products from selected FEA-phosphor pairs in an ultrahigh vacuum system equipped with a calibrated quadrupole rresidual gas analyzer. Different low voltage phosphors and blank anodes were studied. A Spindt-type FEA was used as the electron source. A unique carousel was used so the desorption from all these different anodes could be measured without intervening vacuum breaks; this allowed the desorption from the different anodes to be directly compared with each other. Quantitative outgassing rates are given and the implications of the results for the pumping of the flat panel and emission from the FEAs are discussed.
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