High density ground standed advertisement used all color LED display device

The utility model relates to a high-density floor type full-color display device of a light emitting diode, which is used for advertisement. The utility model is formed by the arrangement of a plurality of display units in a matrix form, wherein the display units are all arranged on a supporting plate; any of the display units is respectively composed a red light emitting diode, a green light emitting diode and a blue light emitting diode; the red light emitting diode, the green light emitting diode and theblue light emitting diode are closely arranged; each of the light emitting diodes is respectively provided with a flat rectangular solid-shaped packaging casing; the front end of the packaging casing is provided with a cylindrical-surface convex lens. The distance between the center points of any two transversal adjacent display units and the distance between the center points of the two longitudinal adjacent display units are both five mm to ten mm. In the utility model, because the red light emitting diode, the green light emitting diode and the blue light emitting diode which are packaged by the flat rectangular solid-shaped packaging casing are adopted, front end of the packaging casing is provided with the cylindrical-surface convex lens, and the display units are arranged in the shape of a matrix, the utility model can be used for displaying any color image in high density and high brightness; the utility model is suitable for outdoor advertisement.