圧電アクチュエータを用いた平板表面でのクリック感の創出

抄録

Click sensation is the feedback by sound and haptic feeling during pressing down an input device such as a button or a switch. In our daily lives, perceiving a click sensation causes us to recognize completion of an operation. Recently, however, input devices using touch screens, such as smartphones, have become widespread, and these devices do not cause us to perceive a physical click sensation. To solve this problem, a device that can generate a click sensation without stroke was proposed and consists of a plate and piezoelectric elements. The device vibrates at the frequency at which mechanoreceptors in human fingertip are most sensitive to vibration. The device causes the perception of a click sensation. Experiments on human subjects were conducted using this device and subjects were able to perceive a click sensation during pressing the plate.