| 摘要 |
An exemplary backlight module ( 11 ) includes a first light guide plate ( 15 ), and a second light guide plate ( 17 ). The first light guide plate includes a first bottom surface ( 156 ), and plural reflective micro-structures ( 158 ) formed at the first bottom surface. The second light guide plate is located adjacent the first bottom surface of the first light guide plate. The second light guide plate includes a second bottom surface ( 176 ), and plural diffusing micro-structures ( 178 ) formed at the second bottom surface.
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