This　paper　presented　the　performance　results　of　a　planar　field　emission　backlight　unit　(FE-BLU)　based　on　carbon　nanotubes　(CNT)　and　field　emission　display　(FED)　on　low　work　function　(LWF)　cathode.　The　morphology　and　field　emission　property　of　CNT　were　investigated.　The　FE-BLU　and　FED　were　fabricated　by　screen-printing　CNT　or　LWF　cathode　and　phosphor　anode　on　glass　substrate　and　then　sintering　and　sealing.　The　good　emission　uniformity　and　stability　of　fabricated　FE-BLU　and　FED　was　obtained,　and　They　showed　high　brightness　of　3200　cd/m(2)　and　400　cd/m(2),　respectively.