Patent ID: 8681292

Claim:
A liquid crystal display (LCD) device, comprising: a liquid crystal (LC) panel; an optical source for providing light to the LC panel; a light guide plate coupled to a light emission surface of the optical source, wherein the light guide plate has a light incidence surface having the same height as the light emission surface of the optical source, and an inclination surface downwardly inclined from one side of the light incidence surface; a light emitting diode (LED) printed circuit board (PCB) disposed on the light guide plate and the optical source; an optical sheet disposed on the light guide plate, and having a diffusion plate and a prism sheet on an upper surface of one side corresponding to the LED PCB, wherein the prism sheet comprises a lower prism sheet and an upper prism sheet, the diffusion plate having a light shielding member attached thereto, wherein one side of the diffusion plate extends up to an edge portion of an upper side of the LED PCB disposed on the inclination surface of the light guide plate so as to have a space portion on an upper surface of an extended portion of the diffusion plate, and the one side of the diffusion plate is supported by the edge portion of the upper side of the LED PCB; a light shielding member attached to the upper surface of the extended portion of the diffusion plate, wherein the light shielding member is in contact with only a side of the optical sheet and the upper surface of the extended portion of the diffusion plate without being in contact with the upper surface of the optical sheet, wherein the light shielding member prevents leakage of light emitted from the optical source to be incident onto side surfaces of the optical sheet, the light shielding member has a height which is equal to or higher than a height of the lower prism sheet of the optical sheet; and a mold frame for accommodating therein the optical source, the light guide plate, and the optical sheet, wherein the LED PCB is attached onto the mold frame and the optical source by a double-sided tape, and one side of the LED PCB and the double-sided tape extend up to the inclination surface of the light guide plate, and wherein the extended portion of the diffusion plate is inclined relative to the LC panel and is a terminal end of the diffusion plate.