User-interactive electronic skin for instantaneous pressure visualization

User-interactive electronic skin for instantaneous pressure visualization

21 July 2013 | Chuan Wang, David Hwang, Zhibin Yu, Kuniharu Takei, Junwoo Park, Teresa Chen, Biwu Ma and Ali Javey
This paper presents a user-interactive electronic skin (e-skin) that can spatially map and visually display applied pressure. The e-skin integrates a network of flexible sensors with an active-matrix organic light-emitting diode (AMOLED) display, enabling real-time pressure visualization. The system is fabricated on a plastic substrate using a monolithic integration of thin-film transistors (TFTs), pressure sensors, and OLED arrays. The TFTs, made from semiconductor-enriched nanotubes, control the OLEDs, which emit light in response to pressure applied through a pressure-sensitive rubber layer. The e-skin demonstrates high flexibility, uniform performance, and fast response times, making it suitable for various applications such as interactive input devices, smart wallpapers, robotics, and medical monitoring. The fabrication process involves detailed steps for creating the TFT backplane, integrating OLEDs, and laminating the pressure sensor. The system's performance is characterized, showing good electrical and mechanical properties, and the e-skin can be used to spatially map and visualize pressure distributions.This paper presents a user-interactive electronic skin (e-skin) that can spatially map and visually display applied pressure. The e-skin integrates a network of flexible sensors with an active-matrix organic light-emitting diode (AMOLED) display, enabling real-time pressure visualization. The system is fabricated on a plastic substrate using a monolithic integration of thin-film transistors (TFTs), pressure sensors, and OLED arrays. The TFTs, made from semiconductor-enriched nanotubes, control the OLEDs, which emit light in response to pressure applied through a pressure-sensitive rubber layer. The e-skin demonstrates high flexibility, uniform performance, and fast response times, making it suitable for various applications such as interactive input devices, smart wallpapers, robotics, and medical monitoring. The fabrication process involves detailed steps for creating the TFT backplane, integrating OLEDs, and laminating the pressure sensor. The system's performance is characterized, showing good electrical and mechanical properties, and the e-skin can be used to spatially map and visualize pressure distributions.
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