A full-color LED display screen is assembled from many components.
1. Power Supply:
The stability and performance of the power supply determine the performance of the display screen. Different models require different power supplies. The power supply required for an LED display screen is calculated based on the power of the unit boards, and the requirements vary from model to model.
2. Cabinet:
The cabinet is composed of multiple unit boards arranged according to size, and multiple cabinets are then assembled into a screen. The cabinets are professionally manufactured, and there are simple cabinets and waterproof cabinets.
3. Module:
An LED module consists of a housing, base shell, and face mask, etc. A full-color LED display screen is composed of individual LED modules, which is what we see as a large LED screen.
4. Control System:
The control system is a crucial part of the display screen. Video transmission occurs via a sending card and graphics card to the receiving card of the full-color LED display. The receiving card then segments the signal and transmits it to the HUB board. An adapter board (also called a HUB board) is installed on the receiving card. The receiving card transmits data to the adapter board, and then the data on the adapter board is transmitted via ribbon cables to the single row or single column of full-color LED display modules in the display cabinet. LED modules also connect to each other via ribbon cables. Typically, one adapter board has only 8 ports, meaning it can only handle the data transmission of 8 rows or 8 columns of LED modules.
If there are more rows or columns, an additional adapter board can be added to the receiving card.
The receiving algorithm for indoor full-color LED displays differs from that of outdoor full-color LED displays because the pixel count and scanning methods are different. Therefore, there are differences in the LED receiving cards. LED display control and debugging are primarily related to the LED display control system.