IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD
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United States of America Patent
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Dec 19, 2014
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Dec 19, 2014
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Abstract
The energy of light irradiated by a backlight causes stress on TFTs for controlling transmissivity for each pixel on a display panel so as to degrade TFTs. The present invention addresses the problem concerning disturbance in transmissivity control based on image information and incapacity of displaying images with desired luminance. The present invention includes a backlight, a transmission-type display panel disposed on the front face of the backlight, a cumulative quantity calculation part configured to calculate a cumulative quantity representing either the cumulated electric energy cumulating power supplied to the backlight or the cumulated light quantity of the backlight, and a display panel controller configured to change a driving condition for the display panel depending on the cumulative quantity.
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