发明名称 |
VIDEO DISPLAY DEVICE, AND TELEVISION RECEIVER |
摘要 |
<p>Provided are a video display device and a television receiver with which the sense of brightness of a light-emitting section can be increased to achieve high-contrast video representation while implementing high-definition video representation in accordance with video genre without ever inducing a sense of incongruity. An area-active control/brightness stretching unit (5) stretches and augments the brightness of a light source in accordance with an input video signal, a light-emission detection unit (2) detects, as a light-emitting section, a superior region in a prescribed range of a histogram of the input video signal, and a mapping unit (3) reduces the brightness of the video signal in non-light-emitting sections, thereby enhancing display brightness of the light-emitting section. During the above, a control curve determining the stretching amount of the brightness of the light source is switched in accordance with input-video-signal genre information detected by a genre-information detection unit (4), thereby modifying the brightness stretching amount and the gain of the video signal in the non-light-emitting sections.</p> |
申请公布号 |
WO2013128672(A1) |
申请公布日期 |
2013.09.06 |
申请号 |
WO2012JP69346 |
申请日期 |
2012.07.30 |
申请人 |
SHARP KABUSHIKI KAISHA;FUJINE, TOSHIYUKI;SHIRAYA, YOJI |
发明人 |
FUJINE, TOSHIYUKI;SHIRAYA, YOJI |
分类号 |
H04N5/66;G09G3/20;G09G3/34;G09G3/36;H04N5/57 |
主分类号 |
H04N5/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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