Patent ID: 8330729

Claim:
An electro-tactile display comprising: at least one current source; arrayed electrodes; a switching circuit for connecting each electrode to the current source or to ground; and electrode selecting/switching means for selecting an electrode connected to the current source and an electrode connected to ground via said switching circuit and switching over the selected electrodes; said electrode selecting/switching means further comprising: first electrode selecting/switching means for connecting one or a plurality of electrodes at a position or positions for stimulation to the current source to provide one or a plurality of current source electrodes and switching over said selected current source electrodes at a predetermined time interval to present tactile sensations; and second electrode selecting/switching means for alternately connecting a plurality of neighboring electrodes in the vicinity of said current source electrodes to the current source and to ground at a time interval shorter than said predetermined time interval, wherein switching by said first electrode selecting/switching means is carried out at an interval of 500 μs to 10 ms and wherein switching of said second electrode selecting/switching means is carried out at an interval of 10 μs to 1 ms.