Patent ID: 7635194

Claim:
A backlight assembly comprising: a receiving container having a bottom plate and a side wall defining a receiving space; a diffusion plate disposed over the receiving space; a light source unit disposed in the receiving space, the light source unit including at least one point light source, wherein the at least one point light source is oriented to emit light mainly in a direction parallel to a plane of the diffusion plate; and a reflective element having a reflective surface which forms a predetermined angle greater than 0 degree with respect to the bottom plate and is oriented to reflect the light from the point light source toward the diffusion plate, the reflective surface being separated from the point light source by a predetermined distance, wherein the light source unit further includes: a heat dissipating part dissipating heat generated from the point light source; and a heat blocking layer connected to the heat dissipating part, and formed in an area that excludes a portion facing the bottom plate of the receiving container to block heat conduction.