Multi-push Display using 6-axis Motion Platform

This study designed and developed a novel tactile display that provides a multi-push sensation by using a 6-axis motion platform. The display mechanically controls the position and orientation of a surface panel. A user touching an on-screen button with one finger can push the button vertically. When the user subsequently touches the display with a second finger, the surface panel declines and the position of the first finger remains unchanged. Thus, the user can push at two positions on the surface panel. We also developed a prototype system with six servomotors and a touch panel based on the principle of frustrated total internal reflection.