A film speaker includes at least one connecting pole, at least one piezoelectric film forming an empty cavity and an conductive layer coated on the piezoelectric film. The connecting pole is electrically connected to the conductive layer.
申请公布号
US2010054505(A1)
申请公布日期
2010.03.04
申请号
US20080342922
申请日期
2008.12.23
申请人
SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.;FIH (HONG KONG) LIMITED
