Portions of the array of light modulators are designed so that each portion can independently display an image and the light source provides {HEAD ~ needed light} to display {TAIL ~ the image} 
to display
Portions of the array of light modulators are designed so that each portion can independently display an image and the light source provides { HEAD ~ needed light } to display { TAIL ~ the image }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL