This year we exhibit in both DSE and Infocomm, and one thing we saw a lot of were LED panel manufacturers showcasing giant-sized video walls. Direct output LED panels offer a lot of advantages. Whereas traditional back-lit LCD panels offer higher resolutions, they don’t offer the same range of colors, brightness, and they require at least some kind of bezel. OLED and MicroLED technologies will address the issue of resolution with their high pixel-density, although there still some time until it becomes mainstream.
Nowadays LED walls are custom built to order. Installers spec the solution to the pixel size they need and manufacturers build to order. Of course, this is a costly approach but is pretty much the only one there is. I am sure pre-packaged panels are coming sooner than later.