Display device and color-temperature correction method

Abstract

The invention relates to a display device and a color temperature adjusting method. The color temperature adjusting method comprises: the phase to converting the input image signal into the illumination and aberration signal; the phase to detect the illumination gray scale signal of the gray part near the UV field origin in the converting aberration signal; the phase to increase the color signal Cb, Cr plus control value of the detected illumination gray scale according to the degree of the converting illumination signal; and the phase by adopting the increased Cb, Cr plus control value, to convert and output the illumination and aberration signal whose color temperature has been changed, into R, G and B signal by adopting the chromaticity space converting algorithm. The invention considers the repeatability of the color, setting the color temperature to be the lowest. The white field only detects the illumination gray scale ingredient of the colorless gray part, improving the color temperature, thereby satisfying the illumination of the outputted image and the light dark ratio, and the repeatability of colors on the sight of people.

Description

technical field [0001] The present invention relates to a display device, and more specifically relates to a display device and a color temperature adjustment method {Display apparatus and method for control color temperature} which can improve the image quality by adjusting the partial color temperature of the gray (Gray) part. . Background technique [0002] FIG. 1 is a schematic diagram of a color temperature set according to a previous gray scale (gray) of a color signal in the prior art. [0003] In the prior art, in a video scan board, the 0-255 gray scale (gray) of each R, G, B cell (cell) is matched with 11,000K in a certain ratio. In this way, when the color temperature is increased, the reproducibility of the color (Color) will be reduced, so that the color temperature cannot be increased significantly. [0004] FIG. 2 is a schematic diagram of color reproducibility and white preference as the color temperature increases. [0005] More specifically, it is a tabl...

AI Technical Summary

Problems solved by technology

As mentioned above, with the increase of color temperature, there is a trade-off relationship between white preference and color reproducibility, and two conditions cannot be satisfied at the same time.

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