Method for improving pure color image brightness, regulating device and liquid crystal displayer

Abstract

The invention provides a method for improving pure color image brightness. The method comprises the following steps that a gray scale of a pure color image of an ordinary color gamut displayed by RGB pixels in a quantum dot color gamut is determined according to a Grassmann color law; an R0G0B0 pixel gray scale which is subjected to quantum dot backlight display and replaces the ordinary backlight display pure color image is converted into an R1G1B1W pixel gray scale; environmental comparison is conducted according to an environmental brightness value and a brightness critical value, and whether the brightness value is larger than the brightness critical value or not is judged; when the environmental brightness value is larger than the brightness critical value, a W sub-pixel gray scale is improved by the ratio of a sub-pixel 255 gray scale of the pure color image replaced by the R0G0B0 pixels and a gray scale of the sub-pixels which have the highest gray scale in R sub-pixels, G sub-pixels, B sub-pixels and W sub-pixels, sub-pixel gray scales of other nonzero gray scales are improved equidistantly; a liquid crystal display device is made to improve the brightness of the pure color image according to the adjusted R1G1B1W pixel gray scale.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a method for improving the brightness of a pure color picture, an adjusting device and a liquid crystal display. Background technique [0002] A plurality of pixels are arranged on an existing liquid crystal display screen, and each pixel includes three types of sub-pixels or sub-pixels of R, G, and B (R pixel, G pixel, and B pixel). With the development of liquid crystal display technology, new pixel configurations have been proposed, such as RGBW pixels. The RGBW display mode has attracted more and more attention from the market due to its advantages of high penetration rate and power saving. However, how to improve the brightness of the pure color picture in RGBW display mode is a difficult problem faced by most manufacturers. At present, the commonly used method is to overload the backlight LED, or adjust the pixel area of ​​the RGBW sub-pixel to increase the...

AI Technical Summary

Problems solved by technology

However, the former increases the power consumption of the backlight and reduces the battery life of the device, while the latter narrows the area of ​​the W pixel and reduces the penetration rate of the white screen, weake

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