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