Core Insights - The article discusses the significance of tandem perovskite LEDs in the new display technology sector, highlighting their potential to enhance efficiency and longevity compared to single-layer devices [2][6]. Group 1: Technology Overview - Light Emitting Diodes (LEDs) are identified as a key technology in the new display field, representing emerging industries and new productive forces [2]. - Tandem LEDs improve efficiency and lifespan by stacking multiple light-emitting units vertically [2]. Group 2: Research Breakthrough - A recent study published in Nature by researchers from Nanjing University of Technology achieved a peak external quantum efficiency of 45.5% and an average peak efficiency of 40.9%, setting a new record for tandem perovskite LEDs [3][6]. - The research utilized interlayer photon recycling to develop high-performance tandem LEDs, achieving a low operating voltage of 3.2 V and a long half-life of 64 hours at an initial brightness of 70 W·Sr⁻¹·m⁻² [6]. Group 3: Implications and Future Directions - The findings signify a major breakthrough in achieving high-performance multi-color LEDs through perovskite stacking technology [7]. - The advancements in perovskite LEDs are paving the way for potential industrial applications, with previous research also indicating a significant increase in external quantum efficiency, surpassing 30% [8].