The utility model discloses an LED display screen with light weight, low cost, low noise, fast installation, convenient maintenance and capabilities of ventilation and transparency, as well as an LED driving plate and LED unit boxes which form the display screen. The LED display screen comprises a plurality of LED display screen unit boxes, a video player and a control system; each LED display screen unit box consists of a unit box body, the LED driving plate fixed in the unit box body, and a box body power supply and a system receiving card which are connected with the LED driving plate; the LED driving plate consists of a driving circuit board, an LED bulb welded on the front surface of the driving circuit board, a driving IC and a driving electrical element pasted or welded on the back surface of the driving circuit board, and a signal interface and a power supply interface which are welded on the circuit board; the driving circuit board is a gridding hollowed PCB; and the LED bulbs are positioned at the intersections of the gridding.