The main body of this paper is the design and research of linear ARRAY LED display device. It decomposes the design elements of the device and analyzes the particularity of the rotating platform in the process of device design. Starting from the power supply mode of the rotating platform and the mechanical structure design of the device, it ensures the performance requirements of the device based on multi-disciplinary intersection and integration. The system uses STC89C52 microcontroller as the main control unit. It controls and displays the image with infrared remote control unit. It corrects the balance effect of the device and the wireless power supply effect of the rotating platform through the mechanical design technology. Based on the principle of human vision transient phenomenon, a rotating platform driven by a motor is used to accomplish the image display. The device is fabricated using the 3D printing technology. The experiment shows that the device can display various states stably and clearly. The organic combination of multi-disciplines solves the complex problems in scientific research effectively.