Method for improving monochromatic white balance adjustment and calibration precision on basis of three primary color brightness parameters

Abstract

A method for improving monochromatic white balance adjustment and calibration precision on the basis of three primary color brightness parameters is disclosed. The method comprises the steps of measuring brightness curve values corresponding to three primary colors which are red, green and blue; measuring predetermined stimulation values of original white, and defining three stimulation values corresponding to a gray scale value which is zero as low order stimulation values; selecting chromaticity coordinates and brightness values of red, green and blue as first to third chromaticity coordinates and first to third brightness values; deducting the low order stimulation values from first to forth groups of stimulation values after converting all chromaticity coordinates and brightness values into the first to forth groups of stimulation values, and deducting the lower order stimulation values form predetermined stimulation values; calculating a first mixing ration for mixing the first to third groups of stimulation values minus the lower order stimulation values into the predetermined stimulation values minus the lower order stimulation values; calculating a second mixing ratio for mixing three groups of simulation values minus the lower order stimulation values into a forth group of stimulation values minus the lower order stimulation values; calculating a final yield value on the basis of first and second mixing ratios and the brightness curve values and setting the final yield value on a display device.

Description

technical field [0001] The present invention relates to a system and method for importing the brightness parameters of the three primary colors of the display panel into the gray-scale white balance gain value calculated based on the white optical characteristics of the display panel to improve the accuracy of the gray-scale white balance adjustment. In the process of gaining the gain values ​​of the three primary colors of red, green, and blue, the luminance curve values ​​corresponding to the three primary colors of red, green, and blue on the panel, as well as the light leakage factor when the panel is in a completely black screen, are considered at the same time to avoid calibration errors and enable automatic calibration The monitor panel can show the best color performance. Background technique [0002] In the production process of liquid crystal display (Liquid Crystal Display, referred to as LCD) and plasma display (Plasma Display Panel, referred to as PDP) and other...

AI Technical Summary

Problems solved by technology

[0004] However, after further research, the inventors found that although the existing solutions use the mixing ratio of colors to calculate the gain values ​​of the three primary colors of red, green, and blue, the existing solutions do not take into account the red and green colors displayed on the panel. , the Gamma Curve value corresponding to the three primary colors of blue, and does not take into account the light leakage factor when the panel is in a completely black screen. In this way, it will result in panels with different brightness curve values ​​and different light leakage degrees, using the same red and green , blue gain value calculation method, resulting in errors, so that the individual monitors can not show the best color performance

[0005] Therefore, how to improve the many problems of the existing display panel adjustment, to avoid the time and labor cost of manual adjustment, and to improve the problems that the existing solutions do not take into account the brightness curve value and the degree of light leakage, so as to reduce the number of display panel The adjustment error, so that the adjusted display can show the best color performance, is an important topic to be discussed in the present invention.

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