The optical display system 1, wherein {HEAD ~ a shape} of {TAIL ~ the emission surface} is rectangular, circular, trapezoidal, triangular, square, elliptical, or hexagonal 
The optical display system 1 , wherein { HEAD ~ a shape } of { TAIL ~ the emission surface } is rectangular , circular , trapezoidal , triangular , square , elliptical , or hexagonal
OTH OTH OTH OTH OTH OTH OTH 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