BRIGHTNESS ENHANCING FILM AND BACKLIGHT UNIT COMPRISING THE SAME

摘要

PURPOSE: A brightness enhancing film and a backlight unit including the same are provided to ensure reliability for temperature change. CONSTITUTION: Adhesion layers(2,4) are formed on both sides of a multi-layered thin film(3). Light diffusion films(1,5) are formed on the adhesion layers. The multi-layered thin film includes a plurality of first thin films having an optical isotropy and a plurality of second thin films having an optical anisotropy. A light diffusing layer is formed on at least one side of the multi-layered thin film.