In the technique of the JP A 2006 30588, the LED backlight is controlled so as to reduce the brightness of signals below {HEAD ~ a variation point} according to the area of the black level areas or to increase the brightness of {TAIL ~ signals} above a variation point according to the area of the white level areas 
In the technique of the JP A 2006 30588 , the LED backlight is controlled so as to reduce the brightness of signals below { HEAD ~ a variation point } according to the area of the black level areas or to increase the brightness of { TAIL ~ signals } above a variation point according to the area of the white level areas
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH