发明名称 |
VIDEO DISPLAY CONTROL DEVICE |
摘要 |
A video display control device includes a video signal processing section that corrects a video signal based on control data generated by a control data generating section and outputs a video signal after correction to a display, and a backlight controlling section that controls a light emission amount of a backlight based on a difference between a mean luminance of the video signal and a mean luminance of the video signal after correction. The control data generating section allocates to a low gradation region of the video signal a high gradation region dynamic range of the video signal in which a video signal corresponding to a black band region is excluded. The backlight controlling section controls a light emission luminance of the backlight so as to cancel out an increase or a decrease in the mean luminance of the video displayed on a screen, according to an increase or a decrease in the mean luminance of the video signal after correction with respect to the mean luminance of the video signal. |
申请公布号 |
EP2811481(A4) |
申请公布日期 |
2014.12.10 |
申请号 |
EP20130743199 |
申请日期 |
2013.01.17 |
申请人 |
PANASONIC CORPORATION |
发明人 |
SHIMURA, TAKUMA;SUENAGA, TERUMITSU;AKITA, TAKASHI |
分类号 |
G09G3/36;G09G3/20;G09G3/34 |
主分类号 |
G09G3/36 |
代理机构 |
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