| 摘要 |
PURPOSE: An optical film and a backlight unit and a display device using the same are provided to reduce the number of parts and failure rate of a backlight unit by integrating light condensing and diffusion functions in an optical film. CONSTITUTION: A light condensing unit(110) comprises a plurality of sub light condensing units which are formed on one side of a base film(100) separately from each other and collect lights entering the other side of the base film. A diffusion unit(120) comprises a plurality of sub diffusion units which are formed between the sub light condensing units and diffuse lights entering the other side of the base film. |
