| 摘要 |
A backlight module having a light diffusing device is disclosed, comprising a frame, a reflecting plate, a top plate, at least one light source, and at least one diffusing plate, in which the reflecting plate having an upper surface is mounted at a bottom side of the frame and the top plate is mounted on a top side of the frame to space a predetermined distance from the reflecting plate. The light source is mounted on the upper surface of the reflecting plate. The light diffusing plate is mounted on the lower surface of the top plate, and the light diffusing plate is corresponding to the light source. The light diffusing plate having an un-uniform thickness inversely proportional to the distance between the light source and the top plate.
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