Electro-Tactile Display with Tactile Primary Color Approach

Abstract — An electro-tactile display is a tactile device that directly activates nerve fibers within the skin by electrical current from surface electrodes. It is superior to conventional mechanical devices in many respects, such as smaller size, but suffers the problem that the quality of the elicited sensation is quite ”electrical”. We focus on how to produce ”natural” tactile sensation by electro-tactile display. Our approach is to independently stimulate each type of mechanoreceptor, and combine the stimuli to produce natural tactile sensation. We call these stimuli “tactile primary colors ” because they are analogous to red, green, and blue, the primary colors for vision. I