Compound type light guiding module and manufacturing method thereof

The invention provides a compound type light guiding module which comprises a light guiding plate, a diffusion layer and a brightening layer, wherein the light guiding plate, the diffusion layer and the brightening layer are stacked in sequence, the diffusion layer is connected on the light guide plate in an adhesive mode, and the brightening layer is connected on the diffusion layer in an adhesive mode. Scattering points are formed on the surface, opposite to the diffusion layer, of the light guiding plate, the diffusion layer comprises a transparent colloid and scattering particles distributed in the transparent colloid, and a micro-structure used for brightening is formed on the surface, opposite to the diffusion layer, of the brightening layer. According to the compound type light guiding module, the light loss rate of light when the light passes through the light guiding module can be reduced. The invention meanwhile provides a manufacturing method of the light guiding module.