Although a traditional back-lit LCD video wall still offers the best value for highest resolution, direct output LED panels are dropping quickly in cost and offer higher brighness, true zero-bezel and typically a longer lifespan and wider range of colors. As higher resolution direct-output technologies such as OLED and MicroLED come to market the resolution and pixel-density will be less of an issue, although there still some time until it becomes mainstream.
For anyone requiring true zero bezel or ultra-high brigtness, LED is the way to go. Nowadays LED walls are custom built to order. Installers spec the solution to the pixel size they need and manufacturers build to order. The question we get asked most often is: