| 摘要 |
A backlight module ( 5 ) includes a light guide plate ( 51 ) and a light source ( 52 ). The light guide plate includes a first light incident surface ( 510 ), a second light incident surface ( 512 ) adjacent the first light incident surface. The first light incident surface and the second light incident surface cooperatively define a first groove ( 54 ) therebetween. The light source is disposed in the first groove. With this configuration, there is no need for additional space for the light source beyond an end of the light guide plate. Thus an overall length of the backlight module is shortened. Furthermore, a top end ( 533 ) of the reflector can be disposed in a second groove ( 59 ) defined between two adjacent side surfaces at the end of the light guide plate. Thus an overall height of the backlight module is shortened. The reduced overall length and height of the backlight module makes it compact.
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