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