Device and method for color adjustment and gamma correction and display panel driver using the same
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United States of America Patent
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Dec 5, 2017
Issued Date -
N/A
app pub date -
Jul 27, 2015
filing date -
Jul 29, 2014
priority date (Note) -
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Abstract
A display device includes a display panel; and a display panel driver driving the display panel. The display panel driver includes: a processing circuit configured to perform digital arithmetic processing on R, G and B grayscale values of input image data to calculate R, G and B grayscale values of output image data, respectively, and a control point data generation circuit configured to: generate first control point data indicating the shape of a desired gamma curve; calculate Re, G and B control point data indicating input-output curves of digital arithmetic processing performed on the R, G and B grayscale values of the input image data by correcting the first control point data in response to the input image data. The processing circuit is configured to calculate the R, G and B grayscale values of the output image data in response to the R, G and B control point data.
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