In　order　to　realize　the　data　from　VGA　output　to　show　on　the　4.8＂　color　TFT-LCD　developed　by　CPTF,　we　design　a　data　sample　and　storage　system　from　VGA　output　to　LVDS　port.　The　system　uses　two　SDRAM　to　realize　ping-pang　store,　and　finishes　the　main　logic　control　in　FPGA.　Using　the　AD9883A　can　realize　3　channels,　8　precision　data　acquisition,　the　acquired　data,　which　is　stored　in　the　SDRAM,　is　changed　into　LVDS　signals　by　the　LVDS　transmitter,　at　the　last　display　in　the　screen.　The　design　of　hardware　and　software　is　reasonable　and　feasible.　As　long　as　each　eye　is　60Hz,　the　panel　can　get　good　3D　results.