Abstract: A full color LED display, comprised a plurality of full color luminant units, is characteristic of: each of the full color luminant units comprises four LEDs distributed in a cross type; each of the LEDs has a polygon top; each space between any two adjacent LEDs of the LEDs is smaller than or equal to 1.2 millimeters; and each space between any two adjacent full color luminant units of the full color luminant units is smaller than or equal to 8 millimeters. The full color luminant unit comprises two red LED, one green LED and one blue LED while the LEDs are full-length LEDs. Moreover, a LED panel's virtual pixel technology is applied for the full color LED display so that the full color LED display has higher image density, better signal mixing, and higher resolution thereof.