By Chris Baraniuk, Know-how Reporter
![Linköping University A green circuit board with a small basic display in the middle showing three red numbers](https://i0.wp.com/ichef.bbci.co.uk/news/480/cpsprodpb/409b/live/9567afc0-2969-11ef-951f-bfad685c889d.jpg.webp?w=662&ssl=1)
At first look, it appears like a relic from the Eighties. A tiny pc display screen with flickering, low-resolution textual content scrolling throughout it. However this may very well be the longer term.
The display screen was made utilizing perovskite gentle emitting diode (PeLED) know-how. It’s radically totally different to the LED know-how utilized in your smartphone show at the moment, and it might result in units which are thinner, cheaper and have longer battery life.
Not solely that, PeLEDs are very uncommon in…