Using perovskite to make LED pixels as small as a virus sharpens video images

https://techxplore.com/news/2025-03-perovskite-pixels-small-virus.html

"micro-LED today's pixel standard, based on II-V semiconductors, would be too expensive/ inefficient to make any smaller... semiconductors from perovskite cheaper even when reduced to only 90 nm width, same brightness/ no loss of efficiency... translates to 127K pixels/ inch record-high pixel density... thus far are all monochrome... future: test lifetime, test color perovskite LEDs for brightness/ efficiency... super-high-resolution augmented reality devices"