Invention Grant
- Patent Title: Force-sensing capacitor elements, deformable membranes and electronic devices fabricated therefrom
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Application No.: US15518301Application Date: 2015-10-14
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Publication No.: US09946424B2Publication Date: 2018-04-17
- Inventor: Matthew H. Frey
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN Saint Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN Saint Paul
- International Application: PCT/US2015/055503 WO 20151014
- International Announcement: WO2016/073153 WO 20160512
- Main IPC: G06F3/045
- IPC: G06F3/045 ; G06F3/044 ; G06F3/041 ; G01L1/14

Abstract:
The present disclosure relates to deformable membranes and force-sensing capacitor elements useful, for example, in electronic devices that include, for example touch screen displays or other touch sensors. The deformable membranes, generally, include a first, second and third layers, with a first arrangement of a plurality of first structures interposed between the first and third layers and a second arrangement of a plurality of second structures interposed between the second and third layers. At least a portion, but not all, of the plurality of first structures have first and/or second surfaces that each overlap through the thickness of the deformable membrane with one or more of the first surfaces or with one or more of the second surfaces of the plurality of second structures. Electrodes or one or more electrode pairs are incorporated into the deformable membrane layer(s) to form force-sensing capacitors. The present disclosure also relates to methods of making deformable membranes and force-sensing capacitor elements, and electronic devices, e.g. touch screen displays that include the deformable membranes and force-sensing capacitor elements.
Public/Granted literature
- US20170308204A1 FORCE-SENSING CAPACITOR ELEMENTS, DEFORMABLE MEMBRANES AND ELECTRONIC DEVICES FABRICATED THEREFROM Public/Granted day:2017-10-26
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