Metasurface-driven OLED displays beyond 10,000 pixels per inch
Metasurface-driven OLED displays beyond 10,000 pixels per inch
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DOI：
10.1126/science.abc8530
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发表时间：
2020-10-23
期刊：
影响因子：
56.9
通讯作者：
Brongersma, Mark L.
中科院分区：
文献类型：
--
作者：
Joo, Won-Jae;Kyoung, Jisoo;Brongersma, Mark L.
光学超颖表面开始进入集成器件，在那里它们可以增强和控制光波的发射、调制、动态成形和检测。在这项研究中，我们表明，有机发光二极管（OLED）显示器的架构可以完全通过引入纳米图案化的超表面镜重新设想。在所得到的元OLED显示器中，不同的元表面图案限定红色、绿色和蓝色像素，并确保从有机白色光发射器优化提取这些颜色。这种新的架构有助于创建使用可扩展纳米压印光刻的新兴显示应用（例如，增强现实）所需的1000像素密度（> 10，000像素/英寸）的设备。相对于标准滤色白色OLED，所制造的像素还提供两倍的发光效率和上级色纯度。
Optical metasurfaces are starting to find their way into integrated devices, where they can enhance and control the emission, modulation, dynamic shaping, and detection of light waves. In this study, we show that the architecture of organic light-emitting diode (OLED) displays can be completely reenvisioned through the introduction of nanopatterned metasurface mirrors. In the resulting meta-OLED displays, different metasurface patterns define red, green, and blue pixels and ensure optimized extraction of these colors from organic, white light emitters. This new architecture facilitates the creation of devices at the ultrahigh pixel densities (>10,000 pixels per inch) required in emerging display applications (for instance, augmented reality) that use scalable nanoimprint lithography. The fabricated pixels also offer twice the luminescence efficiency and superior color purity relative to standard color-filtered white OLEDs.