A color gamut conversion method, color gamut converter, and display device

Abstract

Embodiments of the present application provide a color gamut conversion method, a color gamut converter, and a display device, which relate to the field of display technology and are used to solve the problem that the color saturation of the entire displayed image decreases after adding white sub-pixels. The color gamut conversion method includes: obtaining RGB signals; calculating the preset grayscale value of the white subpixel of each pixel in the RGBW domain when the grayscale value of each monochromatic subpixel in each pixel in the RGBW domain is converted to the RGBW domain ;Divide at least one detection area in the original image, and judge whether the detection area is a high-saturation color block according to the brightness and saturation of pixels in the detection area; if the detection area is a high-saturation color block, set the high-saturation color In the block, the first grayscale maximum value of the white subpixel in each pixel in the RGBW domain is less than 255; at least the minimum value of the first grayscale maximum value and the preset grayscale value is used as the target grayscale value of the white subpixel order value.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a color gamut conversion method, a color gamut converter, and a display device. Background technique [0002] With the continuous development of display technology, display devices have been widely used in electronic products, such as mobile phones, televisions, computers and other products. At present, with the continuous improvement of the resolution of the three-primary-color (RGB) display device, the aperture ratio of the pixel becomes smaller and smaller, and the display brightness decreases. In order to solve the above problems, in the prior art, a white (W) sub-pixel is added to a pixel, thereby improving the display quality of a three-primary-color (RGB) display device. [0003] However, in a four-primary color (RGBW) display device, due to the addition of white (W) sub-pixels, the saturation of the output colors of the R, G, and B sub-pixels will all decrease, thereby ...

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a color gamut conversion method, a color gamut converter, and a display device, which are used to solve the problem that the color saturation of the entire displayed image decreases after adding white sub-pixels

Images