Patent ID: 8525946

Claim:
A backlight unit comprising: a light guide panel which comprises at least one fixing groove formed on a side surface of the light guide panel, and a plurality of patterns formed on a bottom surface of the light guide panel to scatter light; a light source unit which is disposed at the side surface of the light guide panel, and emits light towards the light guide panel; and a supporting member which supports the light guide panel, and comprises at least one fixing protrusion inserted into the fixing groove, wherein an amount of patterns formed on a first area of the bottom surface of the light guide panel adjacent to the fixing groove is greater than an amount of the patterns formed on an area of the bottom surface of the light guide panel adjacent to the first area, and an amount of patterns formed on a second area of the bottom surface of the light guide panel adjacent to the fixing groove is less than an amount of patterns formed on an area of the bottom surface of the light guide panel adjacent to the second area.