Four-color low-blue-light wide-color-gamut display method, device and system

Abstract

The invention relates to a four-color low-blue-light wide-color-gamut display method, device and system. The method comprises the steps that a single pixel is set to be composed of four colors of red,green, cyan and blue; cyan light color coordinates are selected, and the pixel color of an input video signal is converted into a CIE XYZ color space; the tristimulus values of the red, green, blue and cyan colors are substituted, and a group of red, green, blue and cyan four-color ratios with the minimum blue ratio is calculated; and the driving circuit is controlled to output red, green, blue and cyan mixed colors of different ratios. The method has the advantages that image color cast cannot be caused, and the lowest ratio of harmful blue light with low wavelength is guaranteed under the condition of guaranteeing correct display color, so that the LED display screen is more comfortable to watch, a more vivid high-definition display effect of the LED display screen is achieved, and thedisplay quality of the LED display screen is greatly improved. The technical scheme provided by the invention can be applied to the field of ultra-high-definition display of high-definition LED display screens.

Description

technical field [0001] The invention belongs to the technical field of ultra-high-definition display of LED display screens, and in particular relates to a method, device and system for four-color low-blue light wide-color-gamut display. Background technique [0002] Existing LED displays usually use red, green, and blue as the three primary colors of each pixel, and use the three primary colors mixed in different proportions to produce different colors required. In the prior art, there are red, green, blue and yellow 4-color displays to produce better golden yellow, and red, green, blue, and white 4-color displays to reduce power consumption in white and obtain brighter display content . Generally, in order to obtain a larger display color gamut and obtain a purer blue, a blue light source with a lower wavelength is selected for the blue of the three primary colors of red, green, and blue. However, lower wavelength blue light is harmful to the human eye. Especially when ...

AI Technical Summary

Problems solved by technology

However, the existing technology is to directly reduce the proportion of blue light through software, which will cause color cast in the picture, which looks unnatural, resulting in poor display quality of the LED display, and cannot be applied to the ultra-high-definition display field of high-definition LED displays.

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