Core Viewpoint - Metal halide perovskites are promising materials for light-emitting diodes (LEDs), with advancements in quantum efficiency through the use of nanocrystals, low-dimensional perovskites, and ultra-thin layers [1] Group 1: Research Progress - A research team led by Professor Xiao Zhengguo from the University of Science and Technology of China published a paper in Nature on June 11, 2025, discussing a new method for improving the lifespan of perovskite light-emitting diodes (PeLEDs) [3] - The study introduced a "weak space confinement" method, resulting in larger, high-temperature resistant all-inorganic perovskite films, achieving LED brightness over 1.16 million nits and a lifespan exceeding 180,000 hours [4] Group 2: Efficiency and Commercial Viability - The newly developed perovskite LEDs exhibit a luminous efficiency exceeding 22%, comparable to commercial display products, maintaining over 20% efficiency at high current densities near 1000 mA/cm² [7] - The theoretical lifespan of the LEDs, calculated at a normal brightness of 100 nits, surpasses 180,000 hours, meeting the broad standards for commercial LED products [7] Group 3: Future Applications - This research provides a new approach for designing efficient, bright, and stable PeLEDs, overcoming previous technical bottlenecks in efficiency and stability, with potential applications in high-end displays and ultra-bright lighting, signaling a new era for LED technology [9]