Sole Tactile Display Using Tactile Illusion by Vibration on Toenail

We present a novel wearable device for producing tactile sensations to a foot sole while walking. As a method for that, we extended on a tactile illusion in a finger. This illusion can provide tactile sensations in the finger pad when a vibrator is connected to a finger nail and the finger pad is in contact with surface. We applied such kind of tactile illusion to the foot. Following our approach, we developed a prototype of sole tactile display. Our prototype provides two applications. One application is improving the user’s motivation of walking by superimposing ground texture. Another application is supporting stable walking by presenting tactile sensations. By combining these applications, user can walk happily and safely.