BACKLIGHT UNIT AND A LIQUID CRYSTAL DISPLAY USING THE SAME, PARTICULARLY FOR IMPROVING THE CONTRAST CHARACTERISTICS OF A LIQUID CRYSTAL DISPLAY DEVICE BY IMPLEMENTING LOCAL DIMMING

摘要

PURPOSE: A backlight unit and a liquid crystal display using the same are provided to efficiently implement local dimming in slim thickness by independently controlling the brightness of blocks.;CONSTITUTION: A light guide plate array(201) has plural first light guide plates, and the first light guide plates define light guide channels in a second direction perpendicular to a first direction. A second light guide array(202) has plural second light guide plates. The second light guide plates defines the waveguide channels in the first direction. First light sources irradiate light to the waveguide channels in the second direction, and second light sources irradiate light the waveguide channels in the first direction.;COPYRIGHT KIPO 2011