Integrated Intelligent Material Recognition and Information Exchange Platform Based on a Highly Sensitive Flexible Pressure Sensor and Electroluminescent Display

Flexible pressure sensors have become a research hotspot in human-computer interaction and material recognition due to their flexibility and high sensitivity. However, the identified information relies on traditional displays and cannot be dynamically interacted with in real time, which obstructs the efficiency of human-computer interaction. To address this issue, we propose an integrated sensing system that can recognize materials and display information at the same time. The sensing system consists of two parts, namely, a capacitive pressure sensor for recognizing materials and an electroluminescent platform for displaying the identified information. Meanwhile, the performances of the capacitive pressure sensors are optimized by incorporating a hollow-tipped microstructure into the dielectric layer. Also, the electroluminescent display can show the information in a precise and real-time manner, which promotes the efficiency of information exchange. Notably, the system exhibits significant advantages in terms of low cost, and the electroluminescent display module can operate normally even underwater. For application verification, an integrated material recognition and information display system is built and installed on a robotic arm, which can synchronously recognize materials and display their types with the help of neural networks. Thus, this work provides new research directions and solutions for material recognition and display-integrated technologies.