Subjective Assessment of Migrating Vibration Corresponding to Scroll Action on a Hand-Held Device

摘要

This paper describes an implementation of migrating vibration on hand-held mobile devices. Three different migration vibration patterns for a realistic vibrotactile representation corresponding to scroll actions in mobile devices by using piezoelectric actuators are designed, tested and discussed. In the experiment, a test bed with four piezoelectric actuatros at each corner is used and they are operated by the designed patterns for vibration migration. At the experiment, perception ratios against various vibration patterns and vibration migration durations to represent different scroll directions have been assessed by subjectives based on their vibrotactile feelings. The experiment results show more than 80 % of perception ratio for vibration migration against 12 different scroll directions. Also a variety of scroll tactile expressions could be obtained according to given different scroll patterns and vibration migration time. It is expected that the results in this study could offer a new tactile expression with vibration migration.