2011 年 16 巻 3 号 p. 299-302
We propose a haptic touch panel, which enables a user to perceive unified visual and haptic sensation of pushing an elastic object by finger. While a user touches and pushes an elastic object, a contact area between a fingertip and the object changes in correspondence with a force to push. The proposed display presented stiffness by controlling both contact area and force. The contact area was controlled by changing tension of transparent elastic rubber upon the panel. The result of experiments showed that the developed system enabled to change contact area by controlling the rubber's tension and to present different stiffed objects.