LIGHT DIFFUSING PLATE, METHOD FOR PREPARING THEREOF AND BACKLIGHT UNIT COMPRISING THE SAME

摘要

The present invention relates to a light diffusion plate which includes a light incident surface where the light comes in and a light radiating surface facing the light incident surface where the light goes out. A plurality of unit lens is formed on the light incident surface and integrated to the light diffusion plate to have a spaced plane. A diffusion pattern unit including a plurality of optical members on all areas facing the unit lens is included on the light radiating surface. The light diffusion plate has excellent light efficiency and integrates the unit lens and the diffusion pattern unit to ensure the manufacturing efficiency and economic feasibility. The present invention can also reduce the length of an air gap when applied to a backlight unit so that the backlight unit can be manufactured in the form of a thin-film.