Led display device

An LED display device comprising:

• a front box body and a rear box body connected to each other;
• a display module, disposed on the front box body;
• and
• a first connecting structure, disposed between the front box body and the rear box body, the first connecting structure comprises:
• a rotating member, rotatably disposed on the front box body, the rotating member comprising a connecting column extending toward the rear box body;
• a positioning sleeve, detachably disposed on the connecting column, a position adjusting mechanism being disposed between the positioning sleeve and the connecting column, wherein when the positioning sleeve rotates relative to the connecting column, the position adjusting mechanism can adjust an axial relative position between the positioning sleeve and the connecting column;
• and
• a receiving recess and a locking member, the receiving recess being disposed on the rear box body, the positioning sleeve being disposed in the receiving recess, and the locking member being disposed on the rear box body and located between the receiving and the positioning sleeve, wherein when the locking member fits the positioning sleeve, the locking member limits the circumferential rotation and axial movement of the positioning sleeve in the receiving recess, and when the locking member is separated from the positioning sleeve, the positioning sleeve can be disengaged from the receiving recess.