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Method for improving four color white balance adjustment and calibration precision through white color luminance parameters

A white and blue technology, which is applied in the field of improving the accuracy of four-color white balance adjustment with white brightness parameters, can solve the problems of inaccuracy and time-consuming adjustment, so as to improve accuracy and avoid wasting time and manpower Cost, the effect of improving the brightness curve value and the degree of light leakage

Inactive Publication Date: 2013-10-23
MARKETECH INT
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Problems solved by technology

[0006] In view of the fact that in the past, when producing displays, the industry had to manually adjust the grayscale and white balance, which caused problems such as time-consuming and inaccurate adjustments. The inventor relied on years of practical experience and after many studies and tests. , and finally designed a method of the present invention that imports the white brightness parameters of the display panel into the original three primary colors of the display panel and the optical characteristics of white to calculate the gray-scale white balance gain value to improve the accuracy of its gray-scale white balance adjustment. improve the past

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  • Method for improving four color white balance adjustment and calibration precision through white color luminance parameters
  • Method for improving four color white balance adjustment and calibration precision through white color luminance parameters

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[0031] In order to have a further understanding and understanding of the method, technical means and purpose of the present invention, hereby give examples in conjunction with the accompanying drawings, and describe in detail as follows:

[0032] The International Commission on Illumination (CIE) established the CIE XYZ colorimetric system (standard colorimetric system) in 1931, which theoretically assumes three primary colors that do not exist in nature, that is, the theoretical three primary colors, in order to use the above-mentioned theoretical three primary colors. All colors, therefore, the CIE XYZ color system uses a mathematical method to define the color space, hoping to convert the chromaticity coordinates and brightness (x, y, Y) into theoretical three primary colors (X, Y, Z) according to the following formula (1) ), where X, Y and Z refer to the tristimulus values ​​of the three primary colors of red, green and blue, i.e. their stimulation energy to the human eye: ...

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Abstract

The invention discloses a method for improving four color white balance adjustment and calibration precision through white color luminance parameters. The method for improving four color white balance adjustment and calibration precision through white color luminance parameters is characterized in that a gray scale white balance yield value is calculated by importing white color luminance parameters of a display device panel according to display device panel original three primary colors and white color optical properties, and therefore gray scale white balance adjustment and calibration precision can be improved. A first white color image, an entirely red color image, an entirely green color image and an entirely blue color image that have a set gray scale value are orderly displayed on the panel; stimulation values of the images are measured, stimulation values which are obtained when an entirely black image is displayed on the panel are subtracted, and therefore corresponding corrected stimulation values can be acquired; a white color luminance curve value of the display device panel is measured; a first color ratio for mixing the red color, green color and blue color image corrected stimulation values into the first white color image and a second color ratio for mixing the red color, green color and blue color image corrected stimulation values into an ideal white color image are calculated according a color mixing law; red color, green color and blue color adjustment and correction yield values are calculated through utilization of the color mixing ratios and the white color luminance curve value and then are set in a display device.

Description

technical field [0001] The present invention is a method for improving the accuracy of four-color white balance adjustment by using white brightness parameters, specifically a method for importing white brightness parameters of a display panel into the optical characteristics of the original three primary colors and white of the display panel to calculate the gray scale white balance gain value In order to improve the accuracy of its grayscale white balance adjustment, especially by calculating the white brightness curve value on the display panel, and according to the ratio of red, green, and blue when the display panel mixes white images, calculate the red, green, and blue colors. The method of adjusting the gain value in green and blue. Background technique [0002] With the advancement of science and technology and the vigorous development of the electronic industry, the types and performance of displays are constantly moving towards better and richer levels. At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/02
Inventor 黄政勋赵文川
Owner MARKETECH INT
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