PRIVACY FILM USING VISUAL INTERFERENCE PATTERN AND THE METHOD THEREOF

摘要

The present invention relates to a privacy film using visual interference patterns and a method for manufacturing the same wherein not only the thickness of the privacy film can be significantly reduced by using various kinds of visual interference patterns in the shape of very thin separation walls formed in an uniform pattern such as a parallel pattern, a grid pattern and so on but also privacy protection and information security can be more reinforced by limiting a viewing angle in both a horizontal direction and a vertical direction. The privacy film using visual interference patterns includes: a lower film made of a transparent material in the shape of a thin film; view interference patterns which are formed on the lower film, have an uniform height and thickness, are formed in an uniform pattern, and are made of an opaque material; and a filler which is made of a transparent material and is formed in a space between the visual interference patterns. The method for manufacturing the privacy film includes the steps of: forming the visual interference patterns on the lower film made of a transparent material; and coating a portion of the lower film on which the visual interference patterns are not formed by applying the filler made of a transparent material to the portion.