Abstract: Provided is a protruding-based smart tablet including an expression area sensed by a user, the protruding-based smart tablet including a plurality of expression units formed to perform a protruding movement so that the user senses the protruding, a movement control unit configured to control the movement of the expression units, an information control unit configured to control the movement control unit to transmit one or more pieces of information through the expression units, a sensing unit configured to sense an object on the expression area, and an operation control unit configured to control an operation of the expression unit according to a sensing result by the sensing unit.