| 摘要 |
A backlight unit has a light guide plate with a diffusive layer therein. The light guide plate has a first side, a second side opposite to the first side and a third side. The diffusive layer has a base and a plurality of grains in the base. A lamp is arranged beside the third side of the light plate to provide light to the light guide plate. A reflective film is attached on the second side of the light guide plate to reflect light. A brightness enhance member is provided at the first side of the light guide plate.
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