Ceramic TV displays

Idea for a new generation of displays is to carve an array of microscopic cavities into a ceramic slab in which each cavity is can be switched on and off via an array of electrodes. Passing a current through the microcavity generates ultraviolet light which stimulates a coloured phosphorescent layer on a sheet of glass above to produce a visible glow.The advantage of this design, say the researchers, is that the display should work at much higher efficiencies than conventional plasma displays which convert only 1 per cent of electrical power into light. It should also produce displays with much higher resolution because the pixels can be made only a few tens of micrometres across. The team has even demonstrated the idea with 25 centimetre square display with 250,00 pixels.