Color display device and method for reproducing color with an increased number of gradation levels
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United States of America Patent
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Apr 17, 2012
Grant Date -
Oct 2, 2008
app pub date -
Mar 28, 2008
filing date -
Mar 30, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A color display device has a display screen having pixels arrayed, each of which is composed of primary color sub-pixels capable of reproducing respective primary colors and at least one subsidiary color sub-pixel capable of reproducing gray. While gradation signals are generated and supplied to the primary color sub-pixels on the basis of the primary color components of an image to be displayed, the gradation signal to be supplied to the subsidiary color sub-pixel is generated on the basis of the intensity component of the image. The color display device is attained in which the number of gradation levels can be substantially increased without increasing the number of gradation levels of the primary colors.
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