DISPLAY DEVICE AND ERROR DIFFUSION METHOD THEREFOR
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United States of America Patent
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Issued Date -
Mar 5, 2009
app pub date -
Apr 21, 2006
filing date -
Apr 21, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A display device is provided which includes: a decimal part conversion unit (302) which converts a value of a decimal part of a pixel signal for a target pixel into another value when the decimal part takes a specific value, the pixel signal having an integer part and the decimal part; an error addition unit (301) which distributes and adds a difference between the decimal part before the conversion and the decimal part after the conversion to signals for a plurality of pixels adjacent to the target pixel; and an error diffusion unit (311) which performs addition based on a pixel signal for the target pixel composed of the decimal part after the conversion and the integer part and decimal parts of the signals for the plurality of pixels adjacent to the target pixel, and outputs an integer part after the addition as a pixel signal for the target pixel.
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