Sheetless Backlight Module, A Light Guide Plate for the Sheetless Backlight and Manufacturing Method Thereof

Abstract

A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units. The body has a bottom and a plurality of microstructures formed on the bottom and recessed in the body from the bottom. The pluralities of light scattering units are disposed in a plurality of spaces formed due to the plurality of microstructures recessed in the body. A manufacturing method of the light guide plate mentioned above includes forming the plurality of microstructures on the bottom of the body; preparing a fluid solution containing at least a diffusive reflective material; distributing the fluid solution on the bottom; driving the fluid solution to flow into the microstructures; removing the part of the fluid solution outside the microstructures; and solidifying the fluid solution to form the plurality of light scattering units.

What is claimed is: 
     
         1 . A manufacturing method of a light guide plate, comprising:
 forming a plurality of microstructures on a bottom of a body of the light guide plate, wherein the microstructures are recessed in the body from the bottom;   preparing a fluid solution containing at least a diffusive reflective material;   distributing the fluid solution on the bottom;   driving the fluid solution to flow into the plurality of microstructures;   removing the fluid solution outside the microstructures; and   solidifying the fluid solution to form a plurality of light-scattering units in the plurality of microstructures.   
     
     
         2 . The manufacturing method of the light guide plate of  claim 1 , wherein the step of distributing the fluid solution on the bottom further includes distributing the fluid solution by screen printing. 
     
     
         3 . The manufacturing method of the light guide plate of  claim 1 , wherein the step of driving the fluid solution to flow into the plurality of microstructures further includes driving the fluid solution to fill the microstructures. 
     
     
         4 . The manufacturing method of the light guide plate of  claims 1 , wherein the step of removing the fluid solution outside the microstructures further includes scraping the fluid solution from the surface of the bottom. 
     
     
         5 . The manufacturing method of the light guide plate of  claim 1 , wherein the step of solidifying the fluid solution further includes light curing the fluid solution.