The outstanding properties of wide and flexibly tunable emission range, high color saturation, and cost-effectiveness make quantum dots (QDs) promising candidates in display field. However, the vast majority of QDs used in high-performance display devices contain toxic elements such as cadmium (Cd) or lead (Pb). In recent years, with increasing attention to physical health and ecological environment, the application of eco-friendly QDs in light-emitting diodes (LEDs) has been vigorously explored through tremendous efforts in material engineering and device architecture. The external quantum efficiency (EQE) of red InP-based and blue ZnSe-based quantum dot light-emitting diode (QLED) has exceeded 21.4% and 20.2%, which owns good stability and high color purity. In this review, the recent research progress of three major projects implemented on four types of eco-friendly QDs, including existing challenges and possible solutions, and their feedback on device performance are summarized, aiming to provide guidance for the further development of eco-friendly QLEDs.

宽且灵活可调的发射范围、高色彩饱和度和成本效益的突出特性使量子点 (QD) 成为显示领域的有前途的候选者。然而，绝大多数用于高性能显示设备的量子点都含有镉 (Cd) 或铅 (Pb) 等有毒元素。近年来，随着人们对身体健康和生态环境的日益关注，通过在材料工程和器件架构方面的巨大努力，生态友好型量子点在发光二极管（LED）中的应用得到了大力探索。红色InP基和蓝色ZnSe基量子点发光二极管（QLED）的外量子效率（EQE）分别超过21.4%和20.2%，稳定性好，色纯度高。在这篇评论中，