| abstract |
The present invention relates to a composite optical film, which comprises a substrate having diffusion micro-structures and a structured surface on one side of the substrate wherein said composite optical film has an internal diffusion haze of no less than 5% as measured according to JIS K7136 standard method. The composite optical film of the present invention has both light-diffusion and light-converging properties. The composite optical film of the present invention, when utilized in a liquid crystal display (LCD), can not only effectively enhance the luminance of the LCD panel but also avoid light dispersion and Moiré phenomena that may occur when said composite optical film is stacked with other material films. |