Aging Effects in a 0.7″ FED Panel System Build‐Up

Abstract

FED panel system was successfully built up through the integration of a 0.7″ diagonal Si‐based Mo‐tip FEA with 25×25 pixels, Y2O3:Eu or ZnO:Zn phosphor screen, and vacuum sealing through an exhausting glass tube, including a getter. The panel system was driven by an external driver circuit having PWM driving scheme. Before character imaging, it was stabilized through tip aging by increasing slowly a pulse‐mode emission current and phosphor aging by a coulombic charging process. After aging, luminescent characteristics such as emission uniformity, charging and arcing phenomena were shown to be improved significantly.