Device and method for display color adjustment
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United States of America Patent
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Aug 6, 2019
Grant Date -
Nov 30, 2017
app pub date -
May 25, 2017
filing date -
May 27, 2016
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A color adjustment circuit includes: a correction processing circuit configured to generate an output image data by performing color adjustment correction on an input image data; and a correction factor calculation circuit configured to calculate correction factors used for the color adjustment correction. The correction factor calculation circuit calculates a white color distance, a complementary color distance, and an elementary color distance and calculates the correction factors based on the white color distance, the complementary color distance and the elementary color distance. The correction factors are calculated based on: white point correction parameters, top correction parameters, and intermediate correction parameters. The intermediate correction parameters are defined to control the R, G, and B grayscale values of the output image data for the case when the input image data corresponds to each of elementary colors R, G, and B, and complementary colors C, M, and Y of an intermediate grayscale value.
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