Piezoelectric device and electronic device including the same

Provided is a piezoelectric device including a first piezoelectric plate, a vibration plate provided to contact one surface of the first piezoelectric plate, and at least one second piezoelectric plate provided to contact the vibration plate, wherein the first and second piezoelectric plates have di...

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Bibliographische Detailangaben
Hauptverfasser:	SHIN, HEE SEOB, NOH, TAE HYUNG, PARK, IN KIL, JUNG, IN SEOB, KIM, YOUNG SUL, YOON, KYUNG SEOB, PARK, SUNG CHEOL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	Provided is a piezoelectric device including a first piezoelectric plate, a vibration plate provided to contact one surface of the first piezoelectric plate, and at least one second piezoelectric plate provided to contact the vibration plate, wherein the first and second piezoelectric plates have different resonant frequencies.