A frame delay LR separating unit outputs {HEAD ~ a frame delay LR separation signal} separated into {TAIL ~ left and right image signals} in a frame before one repetition period 
separated into
A frame delay LR separating unit outputs { HEAD ~ a frame delay LR separation signal } separated into { TAIL ~ left and right image signals } in a frame before one repetition period
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH