发明名称 LIQUID CRYSTAL DISPLAY DEVICE AND TELEVISION RECEIVER
摘要 <p>Provided are a liquid crystal display device and a television receiver which enable an improvement in visibility in a low-tone range in a configuration in which the brightness of a backlight is changed on the basis of brightness information relating to an image, the liquid crystal display device is provided with an APL curve setting unit and a histogram brightness modulation unit which adjust the brightness of the backlight and a tone signal on the basis of the average brightness of the image and the brightness histogram of the image, and a black stretch unit which gamma-corrects the tone signal adjusted by the histogram brightness modulation unit on the basis of a previously set gamma value, wherein a gamma characteristic used for the gamma correction in the black stretch unit is set by, on the basis of correspondence information indicating the correspondence relationship between a combination of the brightness of backlight adjusted by the histogram brightness modulation unit and the environmental illuminance of the installation site of a liquid crystal panel, and a plurality of gamma values (?2.0-2.4), selecting a gamma value corresponding to the combination.</p>
申请公布号 WO2011025004(A1) 申请公布日期 2011.03.03
申请号 WO2010JP64728 申请日期 2010.08.30
申请人 SHARP KABUSHIKI KAISHA;ONIKI MOTOYUKI;IKEYAMA TETSUO 发明人 ONIKI MOTOYUKI;IKEYAMA TETSUO
分类号 G09G3/36;G02F1/133;G09G3/20;G09G3/34;H04N5/66 主分类号 G09G3/36
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