Quantum‐Dot Light‐Emitting Diodes for Large‐Area Displays: Towards the Dawn of Commercialization,Advanced Materials

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Quantum‐Dot Light‐Emitting Diodes for Large‐Area Displays: Towards the Dawn of Commercialization
Advanced Materials ( IF 27.4 ) Pub Date : 2017-03-03 , DOI: 10.1002/adma.201607022
Xingliang Dai ₁ , Yunzhou Deng ₂ , Xiaogang Peng ₃ , Yizheng Jin ₂

Affiliation

Quantum dots are a unique class of emitters with size‐tunable emission wavelengths, saturated emission colors, near‐unity luminance efficiency, inherent photo‐ and thermal‐ stability and excellent solution processability. Quantum dots have been used as down‐converters for back‐lighting in liquid‐crystal displays to improve color gamut, leading to the booming of quantum‐dot televisions in consumer market. In the past few years, efficiency and lifetime of electroluminescence devices based on quantum dots achieved tremendous progress. These encouraging facts foreshadow the commercialization of quantum‐dot light‐emitting diodes (QLEDs), which promises an unprecedented generation of cost‐effective, large‐area, energy‐saving, wide‐color‐gamut, ultra‐thin and flexible displays. Here we provide a Progress Report, covering interdisciplinary aspects including material chemistry of quantum dots and charge‐transporting layers, optimization and mechanism studies of prototype devices and processing techniques to produce large‐area and high‐resolution red‐green‐blue pixel arrays. We also identify a few key challenges facing the development of active‐matrix QLED displays.

中文翻译：

大面积显示器的量子点发光二极管：走向商业化的曙光

量子点是一类独特的发射器，具有可调节大小的发射波长，饱和的发射色，接近统一的亮度效率，固有的光和热稳定性以及出色的溶液可加工性。量子点已被用作液晶显示器的背光下变频器，以改善色域，从而导致了量子点电视在消费市场上的蓬勃发展。在过去的几年中，基于量子点的电致发光器件的效率和寿命取得了巨大的进步。这些令人鼓舞的事实预示着量子点发光二极管（QLED）的商业化，这有望带来空前的低成本，大面积，节能，宽色域，超薄和柔性显示器。在这里，我们提供进度报告，涵盖了跨学科方面，包括量子点和电荷传输层的材料化学，原型设备的优化和机理研究以及生产大面积和高分辨率红绿蓝像素阵列的处理技术。我们还确定了有源矩阵QLED显示器开发所面临的一些关键挑战。

更新日期：2017-03-03

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