Tactile Display that moves under your fingers
Japanese Giant NEC and Tokyo Institute of Technology developed a prototype of tactile touchscreen that have a directional force Feedback.
“This new touch panel concept imparts a directional tactile feedback force to the user, by moving the panel surface. [...] The system uses wires to pull the four corners of the panel. The tensile force to be applied to each wire can be adjusted, so the strength of the force, as well as the direction, can be controlled. [...] This prototype has optical touch sensors in the bezel, and all the components that produce the force, including the wires and motors, are housed inside the display.”