A video wall consists of multiple computer or television monitors tiled or overlapped to form what appears to be one large screen. Common display technologies used include Direct View LED arrays, LCD panels, and rear projection systems. This setup typically results in thick divider lines, or bezels, that usually significantly reduce the video wall’s viewable area.This means a video wall can have a much larger display area and far higher resolutions than a single display or projector.
Video walls are also much more scalable than projectors since the display surface can be expanded without sacrificing image quality.Though some monitor manufacturers have taken steps to reduce them, it is impossible to completely eliminate them. At the end of the day, these multiple screen setups still look like several TVs next to each other.
In a video wall system, image and video processing is performed by an external video wall controller. As an external component, a controller can leverage far more powerful processing hardware than the processors built into individual displays. These superior processing abilities enable video walls to deliver fluid visual performance and display large amounts of high-resolution content.