Method for presenting tactile sensation and device therefor

A tactile sense presentation device, comprising:

• a plurality of first electrodes covered with an insulating film and arranged on a same plane;
• a plurality of second electrodes arranged on the plane with tops exposed to outside;
• and
• a control unit performing a first operation in parallel with a second operation and performing a third operation, wherein the first operation is for applying temporally changing first voltages to a part of the plurality of first electrodes to generate electric fields which are changed by the part of the plurality of first electrodes, and the second operation is for applying temporally changing first electric currents to a part of the plurality of second electrodes to cause the electric currents to flow from the part of the plurality of second electrodes to second electrodes which are different from the part of the plurality of second electrodes via electric conductors, and wherein the third operation is for applying temporally changing second voltages to a part of the plurality of first electrodes to detect voltages generated in at least another part of the rest of the part of the plurality of first electrodes under the second voltage applied state and to detect positions of dielectrics which are in the vicinity of the tactile sense presentation device based on the detected voltages.

A tactile sense presentation method, comprising:

• arranging a plurality of first electrodes covered with an insulating film on a same plane;
• arranging a plurality of second electrodes on the plane with tops exposed to outside;
• performing a first operation in parallel with a second operation, wherein the first operation if for applying temporally changing first voltages to a part of the plurality of first electrodes to generate electric fields which are changed by the part of the plurality of first electrodes, and the second operation is for applying temporally changing first electric currents to a part of the plurality of second electrodes to cause the electric currents to flow from the part of the plurality of second electrodes to second electrodes which are different from the part of the plurality of second electrodes via electric conductors;
• and
• performing a third operation, wherein the third operation is for applying temporally changing second voltages to a part of the plurality of first electrodes to detect voltages generated in at least another part of the rest of the part of the plurality of first electrodes under the second voltage applied state and to detect positions of dielectrics which are in the vicinity of a tactile sense presentation device based on the detected voltages.