Nature‐Inspired Pressure Interactive Alternating Current Electroluminescent for Orientation Indication, Visual Sensing, and Remote Monitoring

Abstract

Most current visual pressure sensing devices are greatly limited by less integrated functions. To address this issue, a multi‐dimensional pressure interactive visual monitoring device is proposed based on the temperature and humidity adaptive hydrogel. Specifically, this device is composed of a buffer grid layer that divides it into pressure sensing and luminous display areas. With a double network structure incorporated with a LiBr liquid, the pressure sensing area demonstrates great deformability, resilience, and self‐absorption. In a dynamic mode, the best pressure can be detected at high humidity and low temperature, displaying a range of up to 45 N and offering feedback at a minimum load of 0.25 N. Importantly, the device remaines excellent performance after the dynamic compression repeating over 1300 cycles. In static mode, MPI‐ACEL achieves a delay time of up to 390 min. Finally, it is anticipated that this multifunctional device will provide a new, flexible, and effective scheme for visual pressure sensing, environmental adaptive directional indication, and multi‐dimensional remote monitoring.

Low Driving Voltage Electroluminescence Device for Integrated Visual Strain Sensing

“…With the emergence of the internet of things, there is an increasing demand for interactive wearable display devices. − The popularity of devices like smartwatches and smart glasses continues enhance our interaction with the world. , Electroluminescent (EL) devices, as the foundation of wearable displays, have been a focus in recent decades. − Among these, alternative current electroluminescence|alternative current electroluminescent (ACEL) devices can avoid the charge accumulation caused by unidirectional current, leading the improvement on the power efficiency and operational lifetime. − Moreover, ACEL devices are less sensitive to size variations, which simplifies their application in flexible devices. ,, Numerous flexible displays based on the ACEL technology have been reported, demonstrating their potential in applications such as flexible displays and strain sensors. − …”