Optical Film with Surface Structure

摘要

An optical film with a surface structure includes one surface of a substrate comprising a plurality of light control elements with their longitudinal axes arranged approximately parallel to each other, in which each element includes an independent peak formed by two inclined faces and the two inclined faces between each two independent peaks are connected to each other to form an independent valley; heights of the independent peaks are periodically varied; a virtual connecting line of summits of the independent peaks varied from high to low or from low to high is a straight line, a spacing interval between the independent valleys is varied in a geometric ratio with the height of the independent peak.