Metasurface-based microdisplays Organic light-emitting diodes (OLEDs) have found wide application in high-resolution, large-area televisions and the handheld displays of smartphones and tablets. With the screen located some distance from the eye, the typical number of pixels per inch is in the region of hundreds. For near-eye microdisplays—for example, in virtual and augmented reality applications—the required pixel density runs to several thousand pixels per inch and cannot be met by present display technologies. Joo et al. developed a full-color, high-brightness OLED design based on an engineered metasurface as a tunable back-reflector. An ultrahigh density of 10,000 pixels per inch readily meets the requirements for the next-generation microdisplays that can be fabricated on glasses or contact lenses. Science, this issue p. 459 Metasurface-driven organic light-emitting diodes produce high-pixel-density, full-color displays with high brightness and a wide color gamut. 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.

中文翻译：

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超表面驱动的 OLED 显示器超过每英寸 10,000 像素

基于超表面的微显示器 有机发光二极管 (OLED) 已广泛应用于高分辨率、大面积电视以及智能手机和平板电脑的手持显示器。由于屏幕距离眼睛有一定距离，因此每英寸的典型像素数在数百左右。对于近眼微显示器——例如，在虚拟和增强现实应用中——所需的像素密度达到每英寸几千像素，目前的显示技术无法满足。乔等人。开发了一种基于工程超表面作为可调背反射器的全彩、高亮度 OLED 设计。每英寸 10,000 像素的超高密度很容易满足可在眼镜或隐形眼镜上制造的下一代微型显示器的要求。科学，这个问题 p。459 Metasurface 驱动的有机发光二极管可产生具有高亮度和宽色域的高像素密度、全彩显示器。光学超表面开始进入集成设备，在那里它们可以增强和控制光波的发射、调制、动态整形和检测。在这项研究中，我们展示了通过引入纳米图案超表面反射镜可以完全重新设想有机发光二极管 (OLED) 显示器的架构。在最终的超 OLED 显示器中，不同的超表面图案定义了红色、绿色和蓝色像素，并确保从有机白光发射器中优化提取这些颜色。这种新架构有助于以超高像素密度（> 10，000 像素/英寸）在使用可扩展纳米压印光刻的新兴显示应用（例如增强现实）中需要。与标准滤色白色 OLED 相比，制造的像素还提供两倍的发光效率和卓越的色纯度。