A display method used for a display which has a backlight module suitable to provide more than M types of primary color lights, where M=3. The display panel of the display has an array of pixel regions. The display method provides these pixels regions to display multiple image data to be display in multiple frame times. Each of the image data includes (L1N, L2N, . . . , LMN) each representing the brightness of the M primary color light in each pixel region, where N is a positive integer. The backlight module sequentially provides M-1 primary color lights within any two successive frame times, so allow the image data to drive the pixel regions. The first and the Mth primary color lights provide the frame times for these two successive frame times.