| 摘要 |
A backlight module (20) includes a light guide plate (23), a reflecting member (21) and a plurality of light source (22). The light guide plate has a light incidence surface (231) and a light-emitting surface (232) opposite to the light incidence surface. The reflecting member faces the light incidence surface of the light guide plate. The light sources are arranged between the reflecting member and the light guide plate. The light guide plate defines a plurality of hollow structures (25) therein corresponding to the light sources and has a plurality of microstructure units (27) defined on the light incidence surface corresponding to the light sources.
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