Patent ID: 8514346

Claim:
A backlight unit comprising: a panel guide mold that comprises a plurality of first mold units spaced apart from each other and a plurality of second mold units spaced apart from each other; a bottom cover comprising a plurality of first sidewalls spaced apart from each other and a plurality of second sidewalls spaced apart from each other; and a light supply unit disposed between the panel guide mold and the bottom cover, wherein the plurality of second sidewalls are offset in an outward direction relative to the plurality of first side walls to form an alternating, step-like structure, where the second sidewall protrudes, the second mold unit is recessed, wherein each of the plurality of first sidewalls is inserted and coupled to a corresponding one of the plurality of first mold units offset in an outward direction, and wherein each of the plurality of second sidewalls offset in an outward direction receives and is coupled to a corresponding one of the plurality of second mold units.