| 摘要 |
PURPOSE: An LED signboard is provided to facilitate installation as a plurality of unit LED electronic signboard units are conveniently and quickly assembled and engaged by closely fixing two adjacent LED electronic signboard units in the vertical or horizontal direction by applying a rotary force greater than specific strength. CONSTITUTION: An LED electronic sign board is formed with a plurality of LED panels. A plurality of unit LED electronic sign board units (200) having a cuboidal type unit frame having a front face opened to surround an outside of a plurality of the LED panels comprise the LED electronic sign board. The unit LED electronic sign board unit adjacent to each other in the horizontal direction is engaged and fixed to make a unit frame (220) be closely attached through a horizontal engagement unit. A horizon engagement unit (300) includes a latch engagement unit (310) inserted and arranged in each surface facing with each other of the unit frame adjacent in the horizontal direction and a horizontal operation engagement unit (320). The latch engagement unit and the horizontal operation engagement unit are engaged with each other by rotating the horizontal operation engagement unit and are configured to have a tractive force. The unit frame adjacent to each other in the horizontal direction is closely engaged by the tractive force of the horizontal operation engagement unit. A first input terminal and a second input terminal are arranged in the rear face. |
