A study of tactile sensation and magnitude on electrostatic tactile display

Touchscreen interfaces have become increasingly popular worldwide. However, few commercial touchscreens enable reactive tactile signals. We use lateral-force-based tactile feedback devices that employ electrostatic force. Our goal is to realize more realistic tactile sensation to the user. Previous researches evaluated by using multiple axes determined by the experimenter, however, intuitive classification of these sensation with onomatopoeic words has not been held. In this research, we focused on evaluating how the user feels about the electrostatic stimulation. Furthermore, we proposed a modeling of magnitude of tactile sensation, and discussed what kind of tactile sensation can be displayed with our system.