OPTICAL PLATE, BACKLIGHT ASSEMBLY HAVING THE SAME, AND THE LIQUID CRYSTAL DISPLAY DEVICE

摘要

An optical plate, a backlight assembly having the optical plate and an LCD(Liquid Crystal Display) are provided to diffuse light according to a first prism plate and condense light according to a second prism plate to simplify an optical structure. An optical plate includes a first prism plate(5) and a second prism plate(7). The first prism plate has a plurality of first prisms arranged in a first direction. The second prism plate is placed on the first prism plate and has a plurality of second prisms arranged in a second direction perpendicular to the first direction. The first prism plate has a curvature radius greater than that of the second prism plate.