发明公开
EP3072169A1 MULTI-LAYER PIEZOELECTRIC POLYMER FILM DEVICES AND METHODS
有权
DEVICES AND METHOD FOR多层压电聚合物膜
- 专利标题: MULTI-LAYER PIEZOELECTRIC POLYMER FILM DEVICES AND METHODS
- 专利标题(中): DEVICES AND METHOD FOR多层压电聚合物膜
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申请号: EP14864264.8申请日: 2014-11-18
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公开(公告)号: EP3072169A1公开(公告)日: 2016-09-28
- 发明人: SCHARDT, Craig R. , BONIFAS, Andrew P. , PATZMAN, Derek W.
- 申请人: 3M Innovative Properties Company
- 申请人地址: 3M Center P.O.Box 33427 St. Paul, MN 55133-3427 US
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: 3M Center P.O.Box 33427 St. Paul, MN 55133-3427 US
- 代理机构: Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权: US201361907354P 20131121
- 国际公布: WO2015077200 20150528
- 主分类号: H01L41/253
- IPC分类号: H01L41/253 ; H01L41/083 ; H01L41/22
摘要:
A touch panel includes a touch sensor having a dielectric core layer disposed between first and second piezoelectric layers. Each piezoelectric layer comprises a poled piezoelectric polymer. The touch sensor further includes at least a first set of individually addressable electrodes disposed over the first piezoelectric layer and at least one second electrode disposed over the second piezoelectric layer. Circuitry is coupled to the first set of electrodes and the second electrode. The circuitry is configured to detect a change in an electrical signal of at least one electrode of the first set of electrodes referenced to the second electrode in response to a touch applied to the touch surface of the touch sensor.
公开/授权文献
- EP3072169B1 MULTI-LAYER PIEZOELECTRIC POLYMER FILM DEVICE 公开/授权日:2020-01-01
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