LIQUID CRYSTAL DISPLAY DEVICE INCLUDING A BACKLIGHT CONTROL UNIT FOR CONTROLLING BRIGHTNESS IN A PARTITIONED AREA

摘要

PURPOSE: An LCD device including a backlight control unit is provided to achieve optimal brightness suitable for the brightness of a partitioned area by providing the light of different brightness to the partitioned areas of one frame.;CONSTITUTION: A plurality of pixels are arranged as a matrix form in a liquid crystal panel(18). A back light control part(50) radiate the lights of different brightness to at least one partitioned area. The back light control part generates at least one PWM signal. Partitioned areas are partitioned from the image of one frame displayed in the liquid crystal panel. A backlight unit(32) comprises at least one block which is divided in order to correspond to the partitioned areas. A back light driver(30) supplies at least one driving signal corresponding to PWM signals to the blocks of the backlight unit.;COPYRIGHT KIPO 2010