Method and apparatus for light guide unit and backlight module using the same

摘要

A light guide unit includes a light guide plate and a frame. The light guide plate includes a light incident surface; a light emitting surface adjoining the light incident surface; a bottom surface opposite to the light emitting surface; and three side surfaces. The frame is integrated with the three side surfaces of the light guide plate. The light guide unit is integrally manufactured by two-shot injection molding. The light guide unit has a good utilization efficiency of light energy and an excellent luminescence for decreasing the occurrence of bright lines or dark lines at the boundary between the light guide plate and the frame. This light guide unit can be used in a backlight module.