Patent ID: 8525950

Claim:
A display apparatus comprising: a display panel which displays an image; and a backlight unit which provides light to the display panel, wherein the backlight unit comprises: a light emitting unit which emits the light; and a light guide panel which transmits the light emitted from the light emitting unit onto a surface of the display panel uniformly, wherein the light emitting unit comprises light sources disposed laterally at two side surfaces of the light guide panel, the light guide panel includes a first surface having a first pattern that increases luminance of the light emitted from the light emitting unit, and a second surface having a second pattern that increases uniformity of luminance of the light emitted from the light emitting unit, the second pattern comprises structures having dimensions which increase toward a center portion of the light guide panel and decrease toward the light sources to adjust the uniformity of luminance of the light emitted from the light emitting unit and is formed up inside the light guide panel, and the first surface is opposite the second surface.