| 摘要 |
A direct type backlight module comprising a frame, a substrate, a plurality of light emitting devices and a light-guiding unit is provided. The frame comprises a base and an enclosing wall extended upward from the edge of the base. The substrate is arranged on the base of the frame, and the light emitting devices are arranged on the substrate. The light-guiding unit covers the light emitting devices and exposes a portion of the substrate, and has a light emitting surface and a light incident surface both of a concave shape. Based on the above mentioned structure, the uniformity of the white light emitted from the direct type backlight module can be improved.
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