Screen made up of fog. Any media projected on it looks ephemeral.

Each cube is made up of 1000 led lights.

This is fabulous if you have small veins. Normally, a nurse pokes around looking for a vein in my arm for about five minutes.

This is a thin flexible screen attached to the arm of a soldier in combat. The army plans to print buttons on the other sleeve using a technology called e-ink. These buttons would be used to navigate through this interface. It looks like it comes out of a Harry Potter novel.