Feeling softness on a hard touch panel using an electrostatic tactile texture display

This paper presents a method to deliver soft tactile textures on a hard touch panel, using an electrostatic tactile feedback display, which produces high-frequency frictional textures with extremely low-frequency friction stimuli. Through experiments involving several participants, we found that low frequency signals are effective at transmitting soft sensations. Although the underlying mechanism requires further study, this new perceptual effect may provide the touch panel industry with an attractive haptic advancement.