Micro-light-emitting diodes (μ-LEDs) are regarded as the cornerstone of next-generation display technology to meet the personalised demands of advanced applications, such as mobile phones, wearable watches, virtual/augmented reality, micro-projectors and ultrahigh-definition TVs. However, as the LED chip size shrinks to below 20 μm, conventional phosphor colour conversion cannot present sufficient luminance and yield to support high-resolution displays due to the low absorption cross-section. The emergence of quantum dot (QD) materials is expected to fill this gap due to their remarkable photoluminescence, narrow bandwidth emission, colour tuneability, high quantum yield and nanoscale size, providing a powerful full-colour solution for μ-LED displays. Here, we comprehensively review the latest progress concerning the implementation of μ-LEDs and QDs in display technology, including μ-LED design and fabrication, large-scale μ-LED transfer and QD full-colour strategy. Outlooks on QD stability, patterning and deposition and challenges of μ-LED displays are also provided. Finally, we discuss the advanced applications of QD-based μ-LED displays, showing the bright future of this technology.

中文翻译：

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显示技术中带有量子点的微发光二极管。

微发光二极管（μ-LED）被视为下一代显示技术的基石，可以满足高级应用程序的个性化需求，例如手机，可穿戴手表，虚拟/增强现实，微型投影仪和超高亮度应用。高清电视。然而，随着LED芯片尺寸缩小到20μm以下，由于吸收截面低，常规的磷光体颜色转换不能提供足够的亮度和产量来支持高分辨率显示器。量子点（QD）材料的出现有望填补这一空白，这是因为它们具有显着的光致发光，窄带宽发射，色彩可调性，高量子产率和纳米级尺寸，为μ-LED显示器提供了强大的全色解决方案。这里，我们全面回顾了在显示技术中实施μ-LED和QD的最新进展，包括μ-LED设计和制造，大规模μ-LED转移和QD全彩策略。还提供了有关QD稳定性，图案化和沉积以及μ-LED显示器挑战的展望。最后，我们讨论了基于QD的μ-LED显示器的先进应用，展示了该技术的光明前景。