发明名称 |
MICROSPEAKER WITH SEALED CAVITY BETWEEN SUBSTRATE AND MEMBRANE |
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. |
申请公布号 |
EP2786595(A1) |
申请公布日期 |
2014.10.08 |
申请号 |
EP20120805839 |
申请日期 |
2012.11.28 |
申请人 |
QUALCOMM MEMS TECHNOLOGIES, INC. |
发明人 |
STEPHANOU, PHILIP JASON;BURNS, DAVID WILLIAM;SHENOY, RAVINDRA V. |
分类号 |
H04R17/00;G09G3/34 |
主分类号 |
H04R17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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