To　improve　the　display-effect　of　the　printabler　field　emission　display　(FED),　the　luminance　non-uniformity　correction　method,　gamma　correction　method　and　automatic　power　control　method　are　proposed　by　theoretical　analysis　and　practical　certification.　An　image　processing　method　is　used　into　the　driving　circuit,　and　the　image　luminance　uniformity　and　gray-scale　reproduction　quality　are　improved,　the　sample　power　consume　is　also　reduced.