Researchers at the Julius-Maximilians-Universität Würzburg, Germany, have developed a new form of an organic LED that is many times smaller than existing options - measuring just 300 x 300 nanometers, according to SciTechDaily. If scaled up and built into a standard display, it would enable a 1080p screen that measured just 1mm across.
In the quest for lighter, more detailed, and brighter displays for augmented reality headsets and smart glasses, the most compact individual light-emitting diodes available as of 2025 are micro OLEDs. These measure just under five by five micrometers each, which is absolutely tiny compared to even the mini-LEDs that power many modern high-end TVs. But the new nanometer-scale OLEDs out of this German university and more than 10 times smaller.
