1. A Large-Area Electrostatic-Based Broadband Tactile System with Decoupled Multimodal Sensing and Tactile Stimulation for Robotic Teleoperation and Augmented Tactile Interaction

(Advanced Science, 2026, e75103, https://doi.org/10.1002/advs.75103 )

• Collaboration with Sungkyunkwan Univ.

Bidirectional haptic systems require interfaces that integrate sensing and actuation to enable simultaneous tactile input detection and rich feedback. However, most current technologies are limited to simple sensing or narrowband feedback, restricting realistic human–machine interaction (HMI).

Here, we present a large-area bidirectional HMI based on a unified haptic dual-resonant actuator (UHDRA), which enables concurrent electrostatic multimodal sensing and actuation. The system delivers uniform tactile feedback across 20–250 Hz while allowing real-time sensing without interference.

By leveraging structural stiffness, it maintains stable vibrations even under light touch (~2 N) and enables clear discrimination of tactile signals. This decoupled bidirectional capability offers strong potential for advanced applications such as telerobotics and augmented interaction.