Abstract: A liquid crystal display includes: a backlight module, a LCD panel, a first polarizer, and a second polarizer. The LCD panel is disposed over the emitting surface of the backlight module, the first polarizer is disposed between the backlight module and the LCD panel, and the second polarizer, relative to the first polarizer, is disposed on the other side of the LCD panel. The first polarizer includes a first polarizing layer, a first optical film, and a second optical film. The first optical film is disposed on the one side of the first polarizing layer, and the second optical film, relative to the first optical film, is disposed on the other side of the first polarizing layer. The second optical film is a Polymethyl Methacrylate optical film, and the second optical film is closer to the LCD panel than the first optical film does.

Abstract: The present invention discloses an optical film and method of manufacturing the same. The selected PMMA is well mixed with a solvent to form a wet film by employing a solvent molding technology, and then the wet film is heated to form a dry film. The optical film comprises a material at least selected from a group consisting of PMMA, PMMA with a first functional group replaced by a second functional group and PMMA of intermixing a mixture; and a solvent well mixed with the material selected from the group consisting of PMMA, PMMA with a first functional group replaced by a second functional group and PMMA of intermixing a mixture at a predetermine proportion to form a mixing solution under various conditions, thereby the optical film is formed from the mixing solution by way of a dry treatment.