The light guide plate 7, wherein a second plurality of {HEAD ~ scattering dots} are located in an area between the most outside of concentric circle and the most inside of concentric polygon; the second plurality of scattering dots are arranged in {TAIL ~ a circular arcs} 
The light guide plate 7 , wherein a second plurality of { HEAD ~ scattering dots } are located in an area between the most outside of concentric circle and the most inside of concentric polygon ; the second plurality of scattering dots are arranged in { TAIL ~ a circular arcs }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL