LIGHT CONTROL DEVICE, DISPLAY DEVICE, MULTISCREEN DISPLAY SYSTEM, LIGHT CONTROL METHOD, AND PROGRAM
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United States of America Patent
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Issued Date -
Jan 12, 2017
app pub date -
Mar 13, 2014
filing date -
Mar 13, 2014
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Abstract
A display apparatus in a multiscreen display system includes an enlargement processing unit that converts a video signal of a video source to a video signal of an enlarged video having a size corresponding to a large screen and outputs a video signal of a sectional video in the enlarged video so as to display the sectional video on a liquid crystal panel, where the sectional video is associated with a position on the large screen formed by arranged screens of liquid crystal panels; a video analyzing unit that analyzes the video signal of the video source before this video signal is converted by the enlargement processing unit to the video signal of the enlarged video, so as to obtain predetermined video characteristics about the video signal of the video source; and a light control unit that performs light control of a backlight in accordance with a light control value.
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