Loudspeaker with laminate panel for mobile computing platforms

摘要

Systems and methods enhancing loudspeaker audio performance in thin devices, such as mobile computing platforms and/or communication handsets. In some embodiments, a laminate panel including a dielectric membrane and one or more conductive traces forming an inductive loop suitable wireless charging and/or near field communication (NFC) element is employed as a loudspeaker driven at audio frequencies. In some embodiments, the laminate panel is driven with one or more piezoelectric element. In some embodiments, the laminate panel is of a stiffness and mass to provide a frequency response distinct from that of integrated micro-speakers for a 2.1 audio solution with wider bandwidth than is possible with micro-speakers employing back-side cavities. In some embodiments, the frequency spectrum spanned by the laminate panel loudspeaker enables a tweeter design lacking back-side cavities for smaller device form factor. In some ultra-small form factors, micro-speakers may be eliminated from the platform with the laminate panel providing the only loudspeaker diaphragm for the mobile platform.

主权项

1. A loudspeaker for a wireless device platform, the loudspeaker comprising:
a chassis encircling a cavity; and a speaker actuator disposed within the cavity, the actuator coupled to the chassis and to a laminate panel, the actuator to generate an acoustic output by displacing the laminate panel relative to the chassis in response to an electrical signal, wherein the laminate panel further comprises:
a dielectric membrane; andone or more conductive traces disposed on the dielectric membrane, the conductive traces comprising one or more inductive loop operable for at least one of inductive charging or near field communication.