Researchers develop 90-nanometer LEDs for future ultra high-resolution displays

Serving tech enthusiasts for over 25 years.TechSpot means tech analysis and advice you can trust Forward-looking: Downscaling has long been the driving force in technological progress – from boosting computing power through smaller transistors to advancing display technology with micro-LEDs. Now, researchers from Zhejiang University and the University of Cambridge are pushing the boundaries of LED innovation even further, unveiling the world's smallest LEDs: nano-PeLEDs, based on perovskite semiconductors. These nano-PeLEDs feature pixel lengths as small as 90 nanometers, enabling an unprecedented pixel density of 127,000 pixels per inch (PPI). For comparison, a typical 27-inch 4K gaming monitor has a pixel density of just 163 PPI. "Making electronic devices smaller is an everlasting pursuit for scientists and engineers," said Professor Di Dawei, Deputy Director of the International Research Center for Advanced Photonics at Zhejiang University. He explained that while micro-LEDs ba ... Read full article.