Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Korea.
Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
Nat Commun. 2017 Apr 13;8:14964. doi: 10.1038/ncomms14964.
Interactive displays involve the interfacing of a stimuli-responsive sensor with a visual human-readable response. Here, we describe a polymeric electroluminescence-based stimuli-responsive display method that simultaneously detects external stimuli and visualizes the stimulant object. This organic light-emitting board is capable of both sensing and direct visualization of a variety of conductive information. Simultaneous sensing and visualization of the conductive substance is achieved when the conductive object is coupled with the light emissive material layer on application of alternating current. A variety of conductive materials can be detected regardless of their work functions, and thus information written by a conductive pen is clearly visualized, as is a human fingerprint with natural conductivity. Furthermore, we demonstrate that integration of the organic light-emitting board with a fluidic channel readily allows for dynamic monitoring of metallic liquid flow through the channel, which may be suitable for biological detection and imaging applications.
交互式显示器涉及刺激响应传感器与视觉可读响应的接口。在这里，我们描述了一种基于聚合物电致发光的刺激响应显示方法，该方法可同时检测外部刺激并可视化刺激物。这种有机发光板能够同时感应和直接可视化各种导电信息。当将导电物体施加到交流电流时，将其与发光材料层耦合，就可以实现对导电物质的同时感应和可视化。无论其功函数如何，都可以检测到各种导电材料，因此可以清晰地可视化导电笔所写的信息，以及具有自然导电性的人类指纹。此外，我们证明，将有机发光板与流体通道集成可以很方便地对通道中金属液体的流动进行动态监测，这可能适用于生物检测和成像应用。
