Patent ID: 8764212

Claim:
Alight emitting diode (LED) backlight unit comprising: a plurality of LED chips that emit light; a plurality of LED modules having a printed circuit board (PCB) which supports and drives the plurality of LED chips; a plurality of optical sheets that are attached to the top surfaces of the respective LED modules; and a plurality of heat radiating pads that are attached to the rear surfaces of the respective LED modules, wherein the plurality of LED modules include the plurality of LED chips arranged in a matrix shape composed of two or more rows and two or more columns and the plurality of LED chips are divided into a plurality of blocks which are separated from each other through printing circuit patterns in a circuit manner so as to be independently turned on/off, each of the LED chips has a phosphor in order to emit white light, and wherein the optical sheets and the heat radiating pads have the same size as the LED modules or a smaller size than the LED modules.