Invention Application
- Patent Title: ULTRA-THIN HAPTIC SWITCH WITH LIGHTING
- Patent Title (中): 超声波开关
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Application No.: US14454526Application Date: 2014-08-07
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Publication No.: US20160042888A1Publication Date: 2016-02-11
- Inventor: Brian C. Zellers
- Applicant: Novasentis, Inc.
- Assignee: Novasentis, Inc.
- Current Assignee: Novasentis, Inc.
- Main IPC: H01H13/14
- IPC: H01H13/14 ; H01H13/02 ; H01H13/50 ; G08B6/00

Abstract:
A haptic switch includes: (a) a force sensor responding a mechanical stimulus by providing a sensing signal; (b) a processing circuit receiving the sensing signal and providing a control signal; and (c) an electromechanical polymer (EMP) actuator receiving the response control signal and providing a haptic response. The force sensor and the EMP actuator may each be provided on a flexible circuit covered by a protective layer overlying the flexible circuit. The haptic switch may include a graphic layer on which is provided a symbol representing a key. In that haptic switch, the symbol, the light source, the EMP actuator and the force sensor are aligned such that the light source illuminates the symbol and such that, when a user pushes on the symbol, the user's push applies a pressure on the force sensor and the EMP actuator's haptic response is provided in the vicinity of the force sensor.
Public/Granted literature
- US09576446B2 Ultra-thin haptic switch with lighting Public/Granted day:2017-02-21
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