HIGH BRIGHTNESS OPTICAL FILM

摘要

PURPOSE: A high brightness optical film is provided to improve visibility by including a unit structure of a reversed square horn shape. CONSTITUTION: A unit structure is formed into a plurality of intaglios. The unit structure has a polygonal cone shape. The polygonal cone shape is a square horn shape. The interval separated between unit structures is rounded in a curve. The separation distance of each unit structure is 3 to 100μm in a plurality of unit structures.