Patent ID: 8449162
Filing Date: 2013-05-28
Classification: G02B

Abstract:
1. A backlight module, comprising: a light guide plate, having a first light-emitting surface, a bottom surface opposite to the first light-emitting surface, and a first light incident surface connecting the first light-emitting surface and the bottom surface; and an optical film set, disposed on the first light-emitting surface, wherein the optical film set comprises at least one optical film, the at least one optical film has a second light incident surface, a second light-emitting surface opposite to the second light incident surface, and a side surface connecting the second light incident surface and the second light-emitting surface, the side surface of the at least one optical film and the first light incident surface of the light guide plate are located at the same side, there are a plurality of notches disposed on the side surface of the at least one optical film, and there is a spacer between the every two neighboring notches; and at least one light emitting element, disposed adjacent to the first light incident surface, wherein the at least one light emitting element is capable of emitting a light beam, and the light beam is capable of entering the light guide plate through the first light incident surface and capable of being transmitted to the optical film set via the first light-emitting surface.