The video wall controller is mainly used for screen splicing control system, and is the core control device of the system. As a new-generation FPGA-based pure hardware image processing device, it adopts the structure of main control board and service boards. It supports the video input and video output via various ports. It supports the network encoding and real-time preview of signal sources. It supports the decoding and output of various network signal sources. It supports the high-definition (HD) video splicing and fusion. It supports the window splicing, roaming window, and other operations. It supports the management on users, network, operation, alarm and logs.