An edge-type backlight unit having a plurality of rows of red, blue and
green LEDs to provide a light source. In the backlight unit, a light
guide plate has a light incidence part formed on a side surface thereof
to receive light, the light guide plate inducing the light from the light
incidence part to be emitted through a top surface of the light guide
plate. A light source is disposed near the light incidence part of the
light guide plate, and includes a plurality of red, green and blue light
emitting diodes along the light incidence part. The light emitting diodes
are grouped into at least three rows according to color. Here, the row of
the green light emitting diodes is arranged most adjacent to the top
surface of the light guide plate.