Patent ID: 7926364

Claim:
A tactile sensor comprising: a circuit board; a plurality of unit electrode pads being arranged in a 2-dimensional configuration on one surface of an upper part of the circuit board; and a pressure sensing film being disposed on an upper part of the plurality of 2-dimensionally arranged unit electrode pads, wherein the circuit board comprises: a first circuit pattern configured for electrically connecting unit electrode pads disposed in a same column among the plurality of unit electrode pads arranged in a 2-dimensional configuration; a second circuit pattern configured for electrically connecting unit electrode pads disposed in a same row among the plurality of unit electrode pads arranged in a 2-dimensional configuration; a third circuit pattern configured for electrically connecting unit electrode pads disposed in each of sections among the plurality of unit electrode pads arranged in a 2-dimensional configuration, the entire area where the plurality of unit electrode pads are arranged is divided by the sections, wherein the first to the third circuit patterns are formed on layers different from one another in the circuit board.