Patent ID: 8432515
Filing Date: 2013-04-30
Classification: B29C,B29K,B29L,G02F,G09F

Abstract:
1. A combination optical film, comprising: a plurality of optical films, each having a front surface, a back surface, and an end face extending from the front surface to the back surface, the end face of one of the optical films butting against the end face of another one of the optical films, wherein each of the butted end faces has a length coextensive with a length of the front and back surfaces of each of the respective optical films and a width extending from the front surface to the back surface that is less than a width of the front and back surfaces of each of the respective optical films, the butted end faces substantially match one another in shape, the butted end faces each have a portion non-vertical to the front and back surfaces of each of the respective optical films, and the end faces are butted against one another so as not to form a continuous gap in the normal direction of the optical films from the front to back surfaces.