The specific phase shifts introduced between successive rows and {TAIL ~ frames} result in the illuminated pixels being distributed evenly in {HEAD ~ each frame} 
The specific phase shifts introduced between successive rows and { TAIL ~ frames } result in the illuminated pixels being distributed evenly in { HEAD ~ each frame }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD