发明名称 |
MICRO-SPEAKER AND MANUFACTURING METHOD THEREOF |
摘要 |
A micro-speaker and a manufacturing method thereof are provided. The micro-speaker has a sandwich structure. The micro-speaker includes two piezoelectric material layers and a diaphragm disposed between the two piezoelectric material layers, where the piezoelectric material layers have a ring-shaped structure. The problem of insufficient sound pressure at low frequency is resolved, and the flexibility of the micro-speaker is improved.
|
申请公布号 |
US2010150381(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
US20090431736 |
申请日期 |
2009.04.28 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
LEE HSIN-LI;WANG CHIN-HORNG;CHUANG CHENG-HSIN;LAI JIN-YAO |
分类号 |
H04R17/00 |
主分类号 |
H04R17/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|