Image display device, photography device, image display system and method that adjusts display backlight luminance based on image tag information
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jan 1, 2015
app pub date -
Sep 19, 2014
filing date -
Mar 21, 2012
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Abstract
An image display device includes: a transmissive display panel; a backlight unit on a back face thereof and performing backlight local dimming; a tag information analysis unit that analyzes tag information on an acquired image file; and a backlight control signal creation unit that detects luminance for each of divided image areas of an image in the image file to determine backlight luminance for each of divided light emission areas of the backlight unit in accordance with the detected luminance for each of the image areas in a case where it is determined to perform the BLD in accordance with an analysis result of the tag information on the image file acquired by the tag information analysis unit, and that controls backlight luminance so that the backlight luminance of all the image in the image file becomes uniform in a case where it is determined not to perform the BLD.
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