Invention Grant
- Patent Title: EMP actuators for deformable surface and keyboard application
- Patent Title (中): 用于可变形表面和键盘应用的EMP执行器
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Application No.: US13683928Application Date: 2012-11-21
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Publication No.: US09170650B2Publication Date: 2015-10-27
- Inventor: Christophe Ramstein , Li Jiang , Brian C. Zellers , Shihai Zhang , Richard Ducharme , Stephen Davis , M. Fabrice Domingues Dos Santos
- Applicant: Novasentis, Inc.
- Applicant Address: US PA State College
- Assignee: Novasentis, Inc.
- Current Assignee: Novasentis, Inc.
- Current Assignee Address: US PA State College
- Agency: Hogan Lovells US LLP
- Agent Edward C. Kwok
- Main IPC: G06F3/01
- IPC: G06F3/01 ; H01L41/18 ; H01L41/08 ; H01L41/193 ; H01L41/09

Abstract:
A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology, keyboard, braille display, and audio speakers.
Public/Granted literature
- US20140139436A1 EMP Actuators for Deformable Surface and Keyboard Application Public/Granted day:2014-05-22
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