Patent ID: 8355095

Claim:
A backlight unit, comprising: a support plate; a light guide plate, disposed in a front side of the support plate and emitting light that is introduced from a light source through an end side of the light guide plate, through a front side of the light guide plate; an optical sheet, disposed in the front side of the light guide plate; and a liquid crystal panel maintenance member, disposed in a front side of the optical sheet, wherein the optical sheet is fixed only by the light guide plate and the liquid crystal panel maintenance member, and wherein at least one of the light guide plate and the liquid crystal panel maintenance member includes a first projection such that a tip of the first projection abuts a face of the optical sheet which faces the at least one of the light guide plate and the liquid crystal panel maintenance member so as to fix a fixed portion of the optical sheet contacting the first projection at the tip of the first projection.