A Soft Tactile Display Using Dielectric Elastomer Actuator for Fingertip Interaction

Abstract

In this paper, we demonstrate a soft tactile display composed of a thin dielectric elastomer (DE) actuator coupled with silicone gel in a bubble shape, which can provide tactile stimulation to the skin. The design of the tactile display is referred from hydrostatically coupled DEA structures. We could observe the maximum force of the tactile actuator as 378 mN. In addition, the actuating module could provide exerting force higher than 250 mN in overall range of perceivable frequencies.