High　Dynamic　Range　display　can　reproduce　a　dynamic　range　of　luminance　from　the　real　setting.　The　systems　of　High　Dynamic　Range　Display　based　on　the　dual　structure　of　the　projector　or　LED　array　have　many　shortcomings,　such　as　huge　volume　and　low　local　contrast.　In　this　paper　a　new　backlight　of　liquid　crystal　display　based　on　Field　Emission　Display　is　proposed.　The　method　in　this　paper　has　the　advantages　of　raising　local　contrast　and　dodging　the　halo　and　eliminating　motion　artifacts　of　LCD　HDR　display.　The　experiment　result　indicates　that　it　has　higher　practical　value　since　the　field　emission　backlight　structure　can　increase　the　local　contrast　to　216:1;©　2013　IEEE.