MICROSPEAKER WITH SEALED CAVITY BETWEEN SUBSTRATE AND MEMBRANE

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...

Full description

Saved in:
Bibliographic Details
Main Authors BURNS, DAVID WILLIAM, STEPHANOU, PHILIP JASON, SHENOY, RAVINDRA V
Format Patent
LanguageEnglish
French
German
Published 08.10.2014
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DEAF-AID SETS
DISPLAY
EDUCATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PHYSICS
PUBLIC ADDRESS SYSTEMS
SEALS
Online AccessGet full text

Cover

More Information
Summary: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.
Bibliography:Application Number: EP20120805839