Tactile supply device

A tactile sensation supply device comprising:

• a plurality of tactile sensation providers made of magnetic particles and a matrix material;
• and
• a magnetic field generator for generating a magnetic field to transform the plurality of tactile sensation providers,
• wherein the plurality of tactile sensation providers maintains a first shape when not influenced by a magnetic field,
• wherein the plurality of tactile sensation providers maintains a second shape when influenced by a magnetic field,
• wherein the plurality of tactile sensation providers returns from the second shape to the first shape and produces a reciprocating motion by elastic force, thereby transferring a tactile sensation, and
• wherein the plurality of tactile sensation providers is in the shape of at least one of a fine projection, an empty cylinder, a dome, a polyhedron, a plate, a leaf spring, a seesaw and a tunnel.