Colloidal Quantum Dot Light-Emitting Diodes Colloidal quantum dots light-emitting diodes (QLEDs) have attracted tremendous attention for display applications. To guide the pathway towards successful commercialization, Changhee Lee and co-workers review representative research trends, progress, and challenges of QLEDs in the categories of material synthesis, device engineering, and fabrication methods. More details can be found in article number 2212220.