➀ Researchers from Zhejiang University and the University of Cambridge have developed perovskite-based LEDs with pixels as small as a virus, potentially revolutionizing display technology.

➁ These LEDs, which are monochrome and measure 90 nanometers wide, offer brightness and efficiency comparable to conventional LEDs but face challenges in achieving full-color displays and long-term durability.

➂ While the smallest pixels may not be visible to the human eye, they could find applications in advanced technologies like augmented reality devices requiring ultra-high resolution.