Patent ID: 10859751

Abstract:
A backlight module including a plurality of first light-emitting devices and a light guide plate is provided. The light guide plate includes light-emitting surface, bottom surface and a first light-receiving side. The bottom surface is corresponded to the light-emitting surface, and the first light-receiving side connects the light-emitting surface and the bottom surface. The first light-emitting devices are disposed on the first light-receiving side, arranged along a first direction. The light guide plate further includes a plurality of prisms and a plurality of microstructure groups. The prisms are disposed on the bottom surface and extend along the first direction. The microstructure group includes microstructures, and the microstructures are respectively connecting two of the prisms adjacently disposed. Each of the microstructures has a ridgeline, and the ridgeline is parallel to a second direction, which is different from the first direction. A manufacture method of a light guide plate is also provided.