Diffuser plate, method for manufacture thereof, and backlight module and liquid crystal display using the same
An exemplary diffuser plate includes a diffuser film. The diffuser film includes a plurality of diffusion particles distributed therein. A refractive index of the outer shell of each diffusion particle exceeds that of the inner surface of each diffusion particle.
1 : A diffuser plate comprising a diffuser film, the diffuser film comprising a plurality of diffusion particles distributed therein, wherein a refractive index of the outer shell of each diffusion particle that of the inner surface of each diffusion particle.
2 : The diffuser plate of claim 1 , wherein the diffuser film is acrylic series resin.
3 : The diffuser plate of claim 1 , wherein the diffusion particles are evenly arranged in at least one layer.
4 : The diffuser plate of claim 1 , wherein part of each diffusion particle protrudes out of a surface of the diffuser film.
5 : The diffuser plate of claim 1 , wherein an outer diameter of each diffusion particle is 5 μm˜100 μm.
6 : The diffuser plate of claim 1 , wherein the diffusion particles are hollow balls.
7 : The diffuser plate of claim 6 , wherein the outer shell of each hollow ball is glass or macromolecular resin and the interior of each hollow ball is filled with gas such as atmosphere or neon.
8 : The diffuser plate of claim 6 , wherein the outer shell of each hollow ball is glass or macromolecular resin and the interior of each hollow ball is a vacuum.
9 : The diffuser plate of claim 1 , further comprising an anti-static film adjacent to the diffuser film.
10 : The diffuser plate of claim 9 , wherein the anti-static film a mixture of acrylic series resin and anti-static material.
11 : The diffuser plate of claim 9 , wherein the anti-static film comprises a plurality of hollow balls therein, and part of each hollow ball protrudes out of a surface of anti-static film.
12 : The diffuser plate of claim 9 , wherein the anti-static film comprises a plurality of resin balls therein, and part of each resin ball protrudes out of a surface of the anti-static film.
13 : The diffuser plate of claim 12 , wherein the resin balls are polymethylmethacrylate (PMMA).
14 : The diffuser plate of claim 8 , further comprising a base film located between the anti-static film and the diffuser film.
15 : The diffuser plate of claim 11 , wherein the base film is polyethylene terephthalate (PET) or polycarbonate (PC).
16 : A method for manufacturing a diffuser comprising:
providing a base film, and
forming a diffuser film comprising a plurality of diffusion particles distributed on the base film,
wherein a refractive index of the outer shell of each diffusion particle exceeds that of the inner surface of each diffusion particle.
17 : The method of claim 16 , wherein the diffusion particles are hollow balls.
18 : The method of claim 17 , further comprising providing a dissolvent of acrylic series resin, mixing the plurality of hollow balls into the dissolvent, spreading the dissolvent onto a surface of the base surface; and drying to form a diffuser film on the surface of the base film.
19 : A backlight module comprising a light source and a diffuser plate, the diffuser plate comprising a diffuser film comprising a plurality of diffusion particles distributed therein, wherein a refractive index of the outer shell of each diffusion particle exceeds that of the inner surface of each diffusion particle.
20 . (canceled)