A display device includes: a display panel including a first substrate and a light emitting element layer disposed on the first substrate; and a sound generator disposed on one surface of the first substrate, where the sound generator vibrates the display panel to output a sound. The sound generator includes: a first vibration generator which vibrates the display panel by generating a magnetic force using a first voice coil therein; and a second vibration generator including a vibration layer which contracts or expands based on a voltage applied thereto to vibrate the display panel, where the first vibration generator and the second vibration generator overlap each other in a thickness direction of the display panel.

The invention relates to an enclosure for diffusing sound by reverberation comprising: —a loudspeaker comprising a fixed frame, a cylindrical support and a membrane connected to an upper bearing surface of the frame; and—a wave guide mounted on the upper bearing surface, the wave guide being substantially in the form of a truncated pyramid with a long wall forming a front face, a short wall and lateral uprights; the wave guide comprising at least one acoustic wall fastened to the lateral uprights, the acoustic wall extending tangentially relative to the generatrix line of the cylindrical support closest to the front face.

A speaker (20) includes a cabinet (21) extending along a longitudinal axis (X) between a first and a second end (21a, 21b). The cabinet (21) includes a side wall surrounding an internal volume and provided with an opening to place the internal volume in communication with an outside environment. The speaker (20) also includes a sound transducer (22) and a connection circuit (23) configured to receive a signal and to transmit the signal to the sound transducer (22). The speaker (20) also includes a first and a second passive resonator (24, 25) each including a vibrating panel (24a, 25a). The vibrating panels (24a, 25a) are positioned in the internal volume, with respective first faces facing each other and respective second faces opposite the first faces. The internal volume includes a first, closed air volume (V1) delimited by an inside surface of the cabinet (21) and by the second faces of the vibrating panels (24a, 25a). The internal volume also includes a second air volume (V2), delimited by the first faces of the vibrating panels (24a, 25a) and open towards the outside environment through the opening.

An outer structure of a magnetic circuit is held inside a holder recess of a magnetic circuit holder of a frame. A pressing portion is screw-fixed to a mounting surface of the magnetic circuit holder. Elastically deformable pressing arms are formed at the pressing portion, and the pressing arms press a restriction surface of the outer structure of the magnetic circuit.

A speaker module includes a casing and a speaker unit. The casing has a sound outlet. The speaker unit is arranged in the casing, the speaker unit and the sound outlet are arranged along a transverse axis, and the speaker unit includes a bearing base, a first speaker assembly, and a second speaker assembly. The first and second speaker assemblies are disposed on the bearing base. The first speaker assembly and the second speaker assembly are symmetrical relative to the bearing base. A first sound cavity is formed between the casing and the first speaker assembly, a second sound cavity is formed between the casing and the second speaker assembly, the first sound cavity and the second sound cavity are communicated with the sound outlet, and the first sound cavity and the second sound cavity have the same size and are symmetrical relative to the bearing base.

Electrical equipment comprising a cover, a circuit board, and a heatsink arranged to dissipate heat produced by the circuit board outwards from the electrical equipment, the heatsink comprising at least one free fin and at least one fastener fin, the electrical equipment being such that, when the electrical equipment is assembled, the free fin(s) extend(s) outwards from the electrical equipment without being covered by the cover, and the cover is snap-fastened to the fastener fin(s).

Embodiments are disclosed of a speaker capable of producing multi-frequency-range sound using bar magnets, multiple diaphragms, and a shared planar voice coil. The planar voice coil is located between the bar magnets and translates a received electric signal into the kinetic energy that vibrates the diaphragms, thus reproducing multi-frequency range sound. In some embodiments, the speaker generates bi-directional sound.

A device for mounting an audio speaker in a vehicle includes a clip and a pin. The clip includes an engaging plate, a first engager provided on a first side of the engaging plate, a first lock provided at an end of the first engager on an side opposite to the engaging plate, a second engager provided on a second side that is opposite to the first side of the engaging plate, and a second lock provided at an end of the second engager on a side opposite to the engaging plate. The pin includes a shaft and the first engager has a concave portion that receives the shaft of the pin.

An audio assembly provides audio content to a user. The audio assembly comprises an elongated body, a diaphragm, a transducer, and a plurality of vent assemblies. The elongated body has a first end and a second end opposite the first end. The diaphragm is within the elongated body and pivots about a pivot location that is proximate the second end. The transducer is within the elongated body and is positioned proximate to the first end. The transducer causes the diaphragm to pivot about the pivot location such that the diaphragm generates a positive acoustic pressure wave from a first surface of the diaphragm and a negative acoustic pressure wave from a second surface of the diaphragm. The plurality of vent assemblies are along one or more surfaces of the elongated body, and are configured to vent the positive acoustic pressure wave and the negative acoustic pressure wave.

In various embodiments, an electronic device includes: a diaphragm, a speaker module including a speaker configured to output a sound through a vibration of the diaphragm, and a housing accommodating the diaphragm and the speaker module therein and including a first space provided in a first direction from the speaker module and a second space provided in a second direction opposite the first direction. The electronic device further includes an air adsorption member comprising an air adsorbing material disposed in the first space and having a volume ratio of 90% or less of the first space, the air adsorption member configured to reduce air resistance to the diaphragm disposed above the speaker module without limiting the vibration of the diaphragm.