Abstract
Organic light-emitting diodes (OLEDs) have emerged as the most advanced and popular display technology, offering exceptional color quality, efficiency, and design flexibility. Despite their widespread adoption in consumer electronics, OLEDs, particularly Blue OLEDs, face significant challenges such as limited lifespan, efficiency constraints, and high production costs. This paper comprehensively illustrates the operational principle, device structures, and evaluation standards of OLED technology and devices. It explains the sandwich and multi-layer structures and the physical process of carrier injection, recombination, and exciton formation. The study also delves into the challenges in depth, focusing on rapid degradation and lower energy efficiency, and discusses potential solutions, like advancements in thermally activated delayed fluorescence (TADF) materials. It underscores the need for continuous innovation in material development and device engineering to maintain OLED's competitive edge in the display technology market. Moreover, the paper underscores the promising future of OLED, especially in applications demanding superior display quality and flexibility, and highlights the technology's potential to lead the next generation of electronic displays.
Published Version
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