NTT describes newer advances of using scattered monitors to create an image. Robert Kooima previously wrote about using a clutter of monitors to create a image in his 2008 paper “Generalized Perspective Projection”

Interestingly, he found using just a random arrangement of monitors apparently doesn’t won’t work. The array is carefully calibrated to display a two-dimensional code on each monitor, then photographed in order to understand “the positional relationship between monitors.”