OPTICAL FILM, BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY DEVICE COMPRISING THE SAME

摘要

PURPOSE: The optical film, and the backlight unit including the same and liquid crystal display comprise the base part and protrusion having the curved surface. The light is condensed efficiently and luminance is improved. CONSTITUTION: The protrusion(120) is located on surface the base part(110). Protrusion comprises a plurality of grooves(122) locating in the around of a plurality of micro lenses and plurality of micro lenses(121). The base part or protrusion comprises a plurality of spreading particles. The base part comprises the second base area locating in the lower part of the first base area and the first base area.