A method for generating image compression quantization matrices is disclosed. 0 at an exposure wavelength \u03bb falling between 140 nm and 200 nm, and the thickness d1 of the low-transmission layer satisfies 0. The method further includes enabling groups of R, G, and B subpixels, activating the R, G, and B light sources and the corresponding light intensity adjustment mechanism, and disabling the remaining groups of subpixels all by turns for creating a vivid complete picture by time division color-mixing. The image printing apparatus includes a print-rasterized pixel data receiving section to receive the print-rasterized pixel data in order to print the image according to the print-rasterized pixel data. In other embodiments, the resulting epoxidized polymer may be reacted with components possessing carboxylic acid groups to adjust the acid value and weight average molecular weight of the resin.