Backlight module with light guide having groups and microstructures connecting adjacent prisms

Abstract

A backlight module including a plurality of first light-emitting devices and a light guide plate is provided. The light guide plate has a light-emitting surface, a bottom surface, and a first light-receiving side. The first light-receiving side connects the light-emitting surface and the bottom surface, and the light-emitting devices are disposed on the first light-receiving side 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. The microstructure groups include microstructures, and the microstructures respectively connect two of the prisms adjacently disposed. Each of the microstructures has a long axis. Each of the prisms has a ridgeline extending along a first path. At least one of the microstructure groups has a long axis extending along a second path, which is different from the first path.

Dependencies are inferred from the claim text.