A display unit is constituted by {HEAD ~ a passive matrix} of {TAIL ~ independently controllable pixels} characterized by an active area of n rows and m columns of discrete pixels and a pixel border 
A display unit is constituted by { HEAD ~ a passive matrix } of { TAIL ~ independently controllable pixels } characterized by an active area of n rows and m columns of discrete pixels and a pixel border
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH