A processing method and a processing device for pixel data, a display device, a display method, and a storage medium are provided. The processing method includes: determining a target pixel point in pixel points of a display frame image to be revised, a pixel data of each pixel point including S initial pixel data of different primary colors and a white initial pixel data; converting a white initial pixel data in a pixel data of the target pixel point into S equivalent pixel data of the different primary colors; obtaining S target pixel data of the different primary colors and a white target pixel data of the target pixel point according to the S equivalent pixel data and according to S initial pixel data of the different primary colors in the pixel data of the target pixel point, the white target pixel data corresponding to a 0 gray scale.