MICROSPEAKER WITH SEALED CAVITY BETWEEN SUBSTRATE AND MEMBRANE
    1.
    发明授权
    MICROSPEAKER WITH SEALED CAVITY BETWEEN SUBSTRATE AND MEMBRANE 有权
    基体与膜间密封微孔结构

    公开(公告)号:EP2786595B1

    公开(公告)日:2017-09-27

    申请号:EP12805839.3

    申请日:2012-11-28

    申请人: SnapTrack, Inc.

    IPC分类号: H04R17/00 G09G3/34

    摘要: This disclosure provides systems, methods and apparatus for microspeaker devices. In one aspect, a microspeaker element may include a deformable dielectric membrane that spans a speaker cavity. The deformable dielectric membrane can include a piezoactuator and a dielectric layer. Upon application of a driving signal to the piezoactuator, the dielectric layer can deflect, producing sound. In some implementations, an array of microspeaker elements can be encapsulated between a glass substrate and a cover glass. Sound generated by the microspeaker elements can be emitted through a speaker grill formed in the cover glass.

    摘要翻译: 本公开提供了用于微型扬声器设备的系统,方法和设备。 在一个方面,微型扬声器元件可以包括跨越扬声器腔体的可变形电介质膜。 可变形电介质膜可以包括压电致动器和电介质层。 在向压电致动器施加驱动信号时,介电层可以偏转,产生声音。 在一些实施方式中,可以将微型扬声器元件阵列封装在玻璃基板和盖玻璃之间。 由微型扬声器元件产生的声音可以通过盖玻璃上形成的扬声器格栅发出。