Here,　we　address　the　technical　problems　and　possible　solutions　of　the　voltage　interference　and　charge　accumulation　in　the　under-gate　field　emission　display　(FED),　fabricated　with　single-wall　carbon　nano-tube　film　emitters.　The　electron　emission　from　the　cathode　sides　was　found　to　result　in　electron　bombardment　of　the　gate　and　a　charge　accumulation　on　its　surface.　A　novel　type　of　under-gate　FED　with　a　groove　insulating　layer　(GIL)　was　designed　to　effectively　eliminate　the　possibility　of　the　side　electron　emission,　and　to　enhance　emission　current.　The　emission　characteristics　of　the　prototyped　under-gate　FED　with　GIL　structures　fabricated　in　screen-printing　technique,　were　evaluated.　The　results　show　that　the　voltage　interference　and　charge　accumulation　were　completely　removed,　and　that　the　newly-developed　FED　shows　good　emission　stability　and　gate　modulation　at　a　gate　voltage　ranging　from　100　V　to　250　V　and　an　anode　voltage　of　600　V.