If screen technology could go far beyond retina scale DPI, yet is constrained by the limits of what the human eye can discern, this concept would be great for d

If screen technology could go far beyond retina scale DPI, yet is constrained by the limits of what the human eye can discern, this concept would be great for discrete read-only user interfaces. e.g. put it on a mechanical watch to retain style and tradition, whilst also delivering feeds, alerts à la smart-watch.