https://phys.org/news/2019-05-smallest-pixels-color-changing.html The article doesn't say so, but the implication is these pixels are self-assembling, like paint that you spray on any surface. These are the first ones I know of that appear too good to be true and ready for commercial products, with companies like Samsung already heavily invested in the technology. Ideally, there is no reason a screen with such a high resolution cannot also simultaneously serve as a solar power collector and run off practically nothing. The hope is to print them out by the tens of thousands per night like so many posters at Walmart. These could replace things like lightbulbs even, and you can already buy a laptop with a display that is simultaneously a solar cell. The current best displays in the world that I know of are 16k resolution monsters that are the first of their kind to be practically indistinguishable from reality by even experts with their face pressed up against the glass, and they cost as much as some houses, while this technology could replace them for a few hundred bucks or less with a display that is also a solar cell and a battery on a piece of plastic a few millimeters thick. Slap the display on top of a computer with a little cheeze whiz in the middle! The third world already sometimes uses computer circuitry printed on plastic, because its cheaper than buying everything from the first world.
"These are not the normal tools of nanotechnology, but this sort of radical approach is needed to make sustainable technologies feasible," said Professor Jeremy J Baumberg of the NanoPhotonics Centre at Cambridge's Cavendish Laboratory Sustainable technologies??? Its friggin plastic coating sprayed onto friggin giant plastic display screens, i.e billboards.....to annoy the fuck out of everyone