Brightness enhancement film for liquid crystal display and manufacturing method thereof

1. A method of manufacturing a brightness enhancement film for a liquid crystal display comprising:

providing a solution of high molecular weight resin on a high molecular weight film;

uniformly distributing the solution of high molecular weight resin on the high molecular weight film;

drying the solution of high molecular weight resin to form a high molecular weight resin layer, wherein the high molecular weight resin layer has a hexagonal lattice structure; and

drawing the high molecular weight film and the high molecular weight resin layer in a predetermined direction with heating.

2. The method of claim 1 , wherein the high molecular weight film comprises a polycarbonate or a poly ethylene terephthalate material.

3. The method of claim 1 , wherein the hexagonal lattice structure of the high molecular weight resin layer is approximately 10 nm to 800 nm thick.

4. The method of claim 1 , wherein the solution of the high molecular weight resin is uniformly applied by a spin coating process or blading process.

5. The method of claim 1 , wherein the high molecular weight resin layer comprises one of a polysulfone, a polymethylmethacrylate, a polystyrene, a polyvinylchloride, a polyvinylalcohol, a polynorbonene, a polymer formed by copolymerization of the above identified polymers, or a derivative thereof.

6. The method of claim 1 , wherein the drawing of the high molecular weight film is performed at a temperature between a glass transition temperature of the high molecular weight film and a temperature that is greater than the glass transition temperature of the high molecular weight film by approximately 100° Celsius.

7. The method of claim 1 , wherein the high molecular weight film and the high molecular weight resin layer are each elongated between approximately 1.1 to 8 times through the drawing with heating.

8. A brightness enhancement film for a liquid crystal display comprising:

a high molecular weight film; and

a high molecular weight resin layer formed on the high molecular weight film, wherein the high molecular weight resin layer has a hexagonal lattice structure and wherein the hexagonal lattice structure is positioned along an elongated direction of the brightness enhancement film.

9. The brightness enhancement film display of claim 8 , wherein both the high molecular weight film and the high molecular weight resin layer are drawn in a predetermined direction with heating.

10. The brightness enhancement film display of claim 8 , wherein the high molecular weight film comprises a polycarbonate or a poly ethylene terephthalate material.

11. The brightness enhancement film for a liquid crystal display of claim 8 , wherein the hexagonal lattice structure of the high molecular weight resin layer is approximately 10 nm to 800 nm thick.

12. The brightness enhancement film of claim 8 , wherein the high molecular weight resin layer comprises one of a polysulfone, a polymethylmethacrylate, a polystyrene, a polyvinylchloride, a polyvinylalcohol, a polynorbonene, a polymer formed by copolymerization of the above identified polymers, or a derivative thereof.

13. A method of manufacturing a liquid crystal display comprising:

providing a first UV cross-linker on a diffusion film;

uniformly distributing the first UV cross-linker on the diffusion film disposing a brightness enhancement film on the first UV cross-linker;

providing a second UV cross-linker on the brightness enhancement film;

uniformly distributing the second UV cross-linker on the brightness enhancement film;

disposing a prism film on the second UV cross-linker;

illuminating a UV ray at the first and second UV cross-linkers, wherein the brightness enhancement film has a high molecular weight film and a high molecular weight resin layer formed on the high molecular weight film, the high molecular weight film having a hexagonal lattice structure; and

drawing the high molecular weiciht film and the high molecular weight resin layer in a predetermined direction with heating.

14. The method of claim 13 , further comprising:

uniformly applying the first and second UV cross-linkers on the diffusion film and the brightness enhancement film, respectively, by a spin coating or blading technique.

15. A liquid crystal display comprising:

a display unit displaying images;

a back light unit providing light to the display unit; and

an optical film unit provided between the display unit, the optical film unit comprising a diffusion film, a prism film, and a brightness enhancement film, wherein the brightness enhancement film has a high molecular weight film and a high molecular weight resin layer formed on the high molecular weight film, the high molecular weight resin layer having a hexagonal lattice structure, and wherein the hexaqonal lattice structure is positioned along an elongated direction of the brightness enhancement film.

16. The liquid crystal display of claim 15 , wherein the brightness enhancement film is provided on the diffusion film and the prism film is provided on the brightness enhancement film.

17. The liquid crystal display of claim 16 , further comprising:

a first UV cross-linker connecting together the diffusion film and the brightness enhancement film; and

a second UV cross-linker connecting together the brightness enhancement film and the prism film.