Feb 24, 2026 Yul So www.asiaresearchnews.com Researchers at Ulsan National Institute of Science and Technology have introduced a new light-emitting device that could significantly improve future 3D displays and optical technologies. The team developed a perovskite-based LED that produces highly pure, circularly polarized light on its own, without the need for external polarization filters. Circularly polarized light rotates in a single direction as it travels and is useful fo