| 摘要 |
An exemplary backlight module ( 22 ) includes a light guide plate ( 23 ), a light source ( 27 ) adjacent to a lateral side of the light guide plate, a reflector ( 25 ) under the light guide plate, and an optical dot sheet ( 24 ) between the light guide plate and the reflector. The optical dot sheet includes a transparent film ( 241 ), and numerous optical diffusion dots ( 244 ) formed on a surface of the transparent film that is adjacent to the light guide plate.
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