LED (light-emitting diode) advertising screen capable of embodying three-dimensional assembly effect

The utility model relates to the technical field of three-dimensional LED (light-emitting diode) advertising screens, in particular to an LED advertising screen reflecting a three-dimensional assembly effect, which comprises a bottom plate, a fixed column is fixedly mounted on the bottom plate, a lifting groove is formed in the fixed column, a clamping tooth column is mounted in the lifting groove in a sliding manner, and the upper end of the clamping tooth column penetrates through the top of the lifting groove and extends to the outside. A power assembly used for driving the clamping tooth column to move up and down is arranged at the position, close to the upper end, of one side of the lifting groove, and fixing frames are arranged on the front periphery, the rear periphery, the left periphery and the right periphery of the fixing column. According to the three-dimensional LED advertising screen dismounting and mounting tool, it is ensured that workers do not have various dismounting and mounting assisting