Outdoor high-brightness liquid crystal display screen

The utility model discloses an outdoor high-brightness liquid crystal display screen, which relates to the technical field of outdoor display screen movement and comprises an advertising machine and a base, the top end of the base is fixedly connected to the bottom end of the advertising machine, a rotating unit and a fixing unit are mounted at the bottom end of the base, and the rotating unit comprises a synchronizing shaft with a groove and a roller. The roller is assembled on the outer wall of the synchronizing shaft, and the fixing unit comprises a fixing block. By arranging the four fixing units, when the device is placed outdoors, the device unlocking problem caused by curiosity of children can be solved, the problem that safety accidents are likely to happen after the device is unlocked is solved, and meanwhile compared with a traditional universal wheel, the device has the advantages of being convenient to use and high in practicability. When the universal wheel rotates, the locking part on the univer