Surface finishing method, anti-glare coating, and display device having same

1. A surface finishing method, comprising steps of:

providing a resin material, adding a plurality of spherical diffusion particles into the resin material to form an anti-glare material, wherein each of the plurality of diffusion particles has a same density, and the density of the diffusion particles is less than a density of the resin material;

coating the anti-glare material onto a surface of a substrate, wherein a thickness of the resin material in the anti-glare material coated on the surface of the substrate is greater than a particle size of the diffusion particles; and

performing a curing process of the anti-glare material to cure the resin material to form a resin layer, wherein the diffusion particles is evenly dispersed in the resin layer, and a part of a volume of the diffusion particles is exposed on a surface of the resin layer, thereby giving the substrate a predetermined surface haze.

2. The surface finishing method as claimed in claim 1 , wherein the particle size of the diffusion particle is kept constant, and the volume of the part of the diffusion particles which are exposed from the resin layer is changed by increasing or decreasing a difference in density between the resin material and the diffusion particles, thereby giving the substrate the predetermined surface haze.

3. The surface finishing method as claimed in claim 1 , wherein a difference in density between the resin material and the diffusion particles is kept constant, and the volume of the part of the diffusion particles which are exposed from the resin layer is changed by increasing or decreasing the particle size of the diffusion particles, thereby giving the substrate the predetermined surface haze.

4. The surface finishing method as claimed in claim 1 , wherein the particle size of the diffusion particles is in a range of between 2 μm and 8 μm, and a thickness of the resin layer is in a range of between 5 μm and 10 μm.

5. The surface finishing method as claimed in claim 1 , wherein an absolute value of a difference in particle size between the diffusion particles is less than or equal to 0.5 μm.

6. The surface finishing method as claimed in claim 1 , wherein a refractive index of the diffusion particles is in a range of between 1.3 and 1.5, and a refractive index of the resin layer is in a range of between 1.55 and 1.8.

7. The surface finishing method as claimed in claim 1 , wherein the diffusion particles include solid particles or hollow particles.

8. An anti-glare coating, formed by curing a resin material and a plurality of spherical diffusion particles, wherein each of the plurality of diffusion particles has a same density that is less than a density of the resin material, and the anti-glare coating comprises:

a resin layer; and

the plurality of spherical diffusion particles which are evenly dispersed in the resin layer, wherein a part of a volume of the diffusion particles is exposed on a surface of the resin layer, and a thickness of the resin layer is greater than a particle size of the diffusion particles.

9. The anti-glare coating as claimed in claim 8 , wherein the particle size of the diffusion particles is in a range of between 2 μm and 8 μm, an absolute value of a difference in particle size between the diffusion particles is less than or equal to 0.5 μm, and the thickness of the resin layer is in a range of between 5 μm and 10 μm.

10. The anti-glare coating as claimed in claim 8 , wherein a refractive index of the diffusion particles is in a range of between 1.3 and 1.5, and a refractive index of the resin layer is in a range of between 1.55 and 1.8.

11. The anti-glare coating as claimed in claim 8 , wherein the diffusion particles include solid particles or hollow particles.

12. A display device, comprising:

an LCD panel and a backlight module, wherein the LCD panel comprises an array substrate, a color film substrate, and a pair of polarizers; the array substrate and the color film substrate are opposite to each other; the polarizers are disposed on both outer sides of the array substrate and the color film substrate, respectively; an anti-glare coating is coated on a light emitting surface of the polarizer disposed on the outer side of the color film substrate away from the array substrate; the anti-glare coating is formed by curing a resin material and a plurality of spherical diffusion particles, each of the plurality of diffusion particles has a same density that is less than a density of the resin material; and the anti-glare coating comprises:

a resin layer; and

the plurality of spherical diffusion particles which are evenly dispersed in the resin layer, wherein a part of a volume of the diffusion particles is exposed on a surface of the resin layer, and a thickness of the resin layer is greater than a particle size of the diffusion particles.

13. The display device as claimed in claim 12 , wherein the particle size of the diffusion particles is in a range of between 2 μm and 8 μm, an absolute value of a difference in particle size between the diffusion particles is less than or equal to 0.5 μm, and the thickness of the resin layer is in a range of between 5 μm and 10 μm.

14. The display device as claimed in claim 12 , wherein a refractive index of the diffusion particles is in a range of between 1.3 and 1.5, and a refractive index of the resin layer is in a range of between 1.55 and 1.8.

15. The display device as claimed in claim 12 , wherein the diffusion particles include solid particles or hollow particles.