Invention Grant
- Patent Title: Tactile sense presentation device and method of driving tactile sense presentation device and electrode connection control
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Application No.: US15165230Application Date: 2016-05-26
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Publication No.: US10175758B2Publication Date: 2019-01-08
- Inventor: Daisuke Sugimoto , Hiroshi Haga , Jiro Yanase
- Applicant: NLT TECHNOLOGIES, LTD.
- Applicant Address: JP Kawasaki, Kanagawa
- Assignee: NLT TECHNOLOGIES, LTD.
- Current Assignee: NLT TECHNOLOGIES, LTD.
- Current Assignee Address: JP Kawasaki, Kanagawa
- Agency: Sughrue Mion, PLLC
- Priority: JP2015-111564 20150601
- Main IPC: G06F3/01
- IPC: G06F3/01

Abstract:
X and Y electrodes arranged on a support substrate of the tactile sense presentation device are divided into M groups (here, M≥2, M=4 in FIG. 14). When a presentation content of a tactile sense transits from the N-th frame to the (N+1)-th frame, the device, first, sets electrodes belonging to a group 1 to a floating state for a predetermined time and then, connects each electrode to an AC voltage signal source or the ground so as to present a tactile sense in the (N+1)-th frame. The device sequentially performs this operation for each group, and, when the operation of group M ends, transition between frames ends, and movement of the target area in which a texture sense is presented is completed. There is no case where all the electrodes are in the floating state together, and there is no interruption of the texture sense.
Public/Granted literature
- US20160351026A1 TACTILE SENSE PRESENTATION DEVICE AND METHOD OF DRIVING TACTILE SENSE PRESENTATION DEVICE Public/Granted day:2016-12-01
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