BACKLIGHT UNIT AND A LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME, CAPABLE OF ENHANCING DIFFUSION EFFICIENCY WHILE REDUCING THE THICKNESS OF AN OPTICAL DIFFUSION UNIT

摘要

PURPOSE: A backlight unit and a liquid crystal display device using the same are provided to enhance diffusion efficiency while reducing the thickness of an optical diffusion unit equipped in the backlight unit.;CONSTITUTION: An optical diffusion unit(15) comprises an optical determination layer having different refractive index and transmittance. The light which is income from outside is diffused to the front side. A lamp(12) supplies the light to the optical diffusion unit. A reflective sheet(14) is arranged in the rear side of the optical diffusion unit. The light from the lamp is reflected to the optical diffusion unit.;COPYRIGHT KIPO 2011