OPTICS SHEET AND BACKLIGHT UNIT HAVING THE SAME

摘要

PURPOSE: An optical sheet and a backlight unit thereof are provided to maximize power and luminous efficiency. CONSTITUTION: A micro lens array(114) is located on the upper side of a base film(111). A reflection control layer(116) is located in the lower side of the base film. The micro lens array enhances the concentration efficiency in the vertical direction of the light provided from a lamp.