System and method of quick adjustment of liquid crystal display television

Abstract

The invention discloses a system and a method of quick adjustment of a liquid crystal display television. The system and the method of quick adjustment of the liquid crystal display television comprise a liquid crystal display television to be adjusted, a color analysis meter and an optesthesia color correction control device. The optesthesia color correction control device sends instructions to a display control main board of the liquid crystal display television to be adjusted to ensure that the liquid crystal display television to be adjusted displays a specific testing image; the color analysis meter acquires actual color data of the testing image displayed by the liquid crystal display television to be adjusted and sends the actual color data to the optesthesia color correction control device; the optesthesia color correction control device compares the received actual color data with arranged goal Gamma and color temperature, and therefore acquires an adjustment value, and sends the adjustment value to the display control main board of the liquid crystal display television to be adjusted to conduct corresponding white balance adjustment until acquired color adjustment data is most close to the arranged goal Gamma and the color temperature, and conducts fitting on most similar color adjustment data and a goal optesthesia curve, and accordingly acquire adjusted Gamma curve.

Description

technical field [0001] The invention relates to the technical field of automatic control, and more particularly relates to a quick adjustment system and method of a liquid crystal television. Background technique [0002] With the development of electronic information technology, LCD TVs are becoming more and more popular, and the market demand is increasing. Before the LCD TV leaves the factory, it is necessary to adjust the LCD TV, otherwise the color of the LCD TV will shift and affect the picture quality of the product. Many LCD TV manufacturers have their own color standards for their products, and the display control board must be Adjust the color effect according to the manufacturer's standard. [0003] Since the restoration of the color space is limited by the physical performance of the display panel, to maximize the color effects of different display panels, parameters such as color temperature, contrast, white balance, color conversion matrix, and Gamma curve nee...

AI Technical Summary

Problems solved by technology

However, this method has the following problems: 1) The data processing cannot be truly restored, and the error is relatively large; because the test screen has been converted by the display control board after being displayed through the video input, so the test screen may have changed. , resulting in a large error in the obtained data

2) It cannot be guaranteed that the white balance is at the best color temperature in each gray scale; since the white balance is adjusted through the initial value and the offset value, there are only two control points, and the connection between the two points is a straight line, but the white balance The color temperature value of each grayscale is affected by the color temperature of the display itself, and the color temperature parameter of each point is not linear

3) There is an adjusted output color gamut (triangle) that exceeds or is smaller than the maximum color gamut of the screen; because the test instrument can no longer be closest to the display to output the test chart, it can only be output by controlling the main board, so the actual color of the display cannot be accurately known gamut, so it is impossible to adjust the exact color gamut space that matches the actual display

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