LED bulletin board

The utility model discloses an LED bulletin board. Mounting frame, an LED display screen is fixedly arranged on the front surface of the mounting frame; a first cleaning and brushing frame is slidablyconnected between the tops of the two first sliding rails through a sliding block. A second cleaning and brushing frame is slidably connected between one ends of the two second sliding rails througha sliding block. Dedusting felts are fixedly arranged on one side of the first brushing frame and one side of the second brushing frame; the utility model discloses an LED bulletin board. A first sliding rail, a first cleaning and brushing frame, a second sliding rail and a second cleaning and brushing frame are arranged; both the LED display screen and the LED rolling screen can move up and downon the surfaces of the LED display screen and the LED rolling screen through the sliding blocks; dust attached to the surface of the screen is removed through the dust removal felt, the situation thatthe propaganda effect is af