A Proposal and Investigation of Displaying Method by Passive Touch with Electrostatic Tactile Display

Abstract

In the field of tactile displays, electrostatic force displays have been developed for presenting tactile stimulation on a screen. However, with the conventional electrostatic force displays, the user cannot feel the stimulation without rubbing on the display. In this paper, to solve this problem, we propose a new method to present a tactile sensation without moving a finger by creating a small space between an electrode and an insulating surface. Moreover, we evaluate the perceived threshold of the proposed display through the experiment.

Characterization of an Electrode-Type Tactile Display Using Electrical and Electrostatic Friction Stimuli

“…Shao et al, for instance, combined electrostatic force actuators and a liquid-based displacement amplification mechanism to generate a tactile stimulus over a large area and with great force [ 11 ]. Tomita et al fabricated a tactile display with an electrostatic force actuator consisting of conductive strings and a thin plastic film [ 12 ]. Although the displacement caused by this electrostatic actuator was small, it was nonetheless sufficient to stimulate a fingertip, which is a relatively sensitive part of the human body.…”