Abstract
This thesis includes a development of a haptic display using vibration overlap method. By superposing several vibrations in different phases, human perceives sharp and strong tactile sensation between them. In this thesis we formulated the non-linear relationship between input multi-vibrations in close proximity and the response of the skin deformation. Then we developed a haptic display using voice coil motors with vibration overlap method. Since voice coils are low-rigidity and easy to deform, we conducted a psychophysical experiment in order to determine the effect on human vibrotactile detection threshold by the difference in level of two vibrators. Considering to these knowledges, we demonstrated the possibility to achieve the vibration overlap method with low-rigidity voice coil motors.
