?LED screen cantilever type features: 1) This method is mostly used indoors and semi-outdoors 2) Generally used at the entrance of passages and corridors, and also at the entrance of stations, railway stations, subway entrances, etc. 3) It is useful for roads, railways, and expressways The above is used for traffic guidance 4) The design of the screen generally adopts an integrated cabinet design, or a hoisting structure design .