A display panel includes an array substrate including a thin film transisitors array, a lighting device formed on a surface of the array substrate where the thin film transistors array is formed to emit a backlight, and a color conversion layer formed on a side of the array substrate opposite to the lighting device. The display panel defines a number of pixel areas, each of the pixel areas includes at least three sub-pixels to correspondingly emit lights with three-primary colors. The color conversion layer includes a number of quantum dot blocks corresponding to the sub-pixels to convert the backlight to the lights with three-primary colors.