An electronic device is provided. The electronic device includes: a housing at least partially surrounding a space between a front surface and a rear surface of the electronic device, and including a side structure through which a speaker hole is formed; a speaker configured to emit a sound signal through the speaker hole; a vibration motor structure provided adjacent the speaker, and including a plurality of side surfaces, wherein a motor ventilation hole is formed through a first side surface of the plurality of side surfaces; an enclosure provided in the housing, and surrounding at least a portion of the speaker and at least a portion of the vibration motor structure; a sound absorbing structure provided in the enclosure; and a protection structure provided in the enclosure, and overlapping at least a portion of the motor ventilation hole.

A display panel according to an embodiment of the present disclosure includes a flexible organic electroluminescent panel, and one or a plurality of piezoelectric films provided on a rear surface of the organic electroluminescent panel and vibrating the organic electroluminescent panel as a flat speaker.

A loudspeaker comprising: an acoustic diaphragm having front and rear surfaces, the acoustic diaphragm in use being driven so as to vibrate and radiate acoustic waves from its front surface in a forward direction away from the loudspeaker and from its rear surface in a rearward direction, and a drive unit located rearwardly or to the front/outside of the diaphragm, there being at least one open duct leading in a rearward direction away from the diaphragm, in which the at least one open duct has a cross-sectional area which decreases in the rearward direction, and in which acoustic waves radiated from the rear surface of the diaphragm pass through the open duct before contacting a front surface of an acoustic metamaterial absorber located generally behind the drive unit and immediately to the rear of the duct.

The present invention describes a loudspeaker comprising a housing and a plurality of sound transducers arranged inside said housing, where the housing has two sides arranged on either side of a x-y plane with a mutual distance between said sides measured along a z-axis orthogonal to the x-y plane, and a front facing side and a rear facing side, and a top and a bottom, wherein a. A first sound transducer is arranged inside a first cavity inside said loudspeaker housing, where said first cavity has a narrow first slit in the y-direction provided in the rear facing side, where said first slit has a width z1 in the z-direction, and a length y1 in the y-direction where the length y1 in the y-direction is larger than the width z1 in the z-direction; b. A second sound transducer is arranged inside a second cavity inside said loudspeaker housing, separate from said first cavity, and where said second cavity is provided with a narrow second slit in the y-direction provided in the front facing side, where said second slit has a width z2 in the z-direction, and a length y2 in the y-direction, where the length y2 in the y-direction is larger than the width z2 in the z-direction.

Provided is an acoustic device having front and rear surfaces, and the front surface has sound outlet. The acoustic device includes: a metal enclosure housing; an acoustic component mounted in the housing, the acoustic component and the enclosure housing cooperate to form front and rear sound cavities, and the front sound cavity is communicated with the sound outlet; and an isolation component mounted in the rear sound cavity, and the isolation component and the enclosure housing enclose to define a filling cavity filled with sound-absorbing material. The isolation component closely fits outer surface of the acoustic component, the isolation component is provided with hollow portion to enable the outer surface of the acoustic component to be exposed to the filling cavity, and the hollow portion is filled with the sound-absorbing material. With the arrangement of the hollow portion, the acoustic device is filled with more sound-absorbing material, improving acoustic performance.

Provided is an acoustic device, having front and rear surfaces. The acoustic device includes: an enclosure housing being a metal housing; an acoustic component mounted in the enclosure housing, the acoustic component and the enclosure housing cooperate to form front and rear sound cavities, and the front sound cavity is communicated with the sound outlet; an isolation component mounted in the rear sound cavity, the isolation component and the enclosure housing enclose to form a filling cavity configured to be filled with a sound-absorbing material; and at least one buffer attached to an inner surface of the enclosure housing defining the filling cavity, the buffer is configured to reduce noise generated from collision of the sound-absorbing material with the enclosure housing. The acoustic device can reduce collision of the sound-absorbing material with the metallic enclosure housing, thereby reducing noise generated, so as to improve acoustic performance.

A portable sound equipment including a main body including an upper case and a lower case; a speaker hole formed in a top surface of the upper case; a speaker module secured to an inner surface of the upper case and adjacent to the speaker hole; a wireless communication unit transceiving data wirelessly; and a main board mounted in an internal space of the lower case and separated from the speaker module and controlling the output of the speaker module based on a signal received by the wireless communication unit.

A high-performance and flexible loudspeaker apparatus usable in various scenes. A first unit includes a loudspeaker therein, a second unit is connected to a lower portion of the first unit, the first unit comprises the loudspeaker provided in a housing of the first unit so as to output a sound toward an upper portion of the housing and a passive radiator provided on a rear surface side of the loudspeaker in the housing, and an output port of the passive radiator is opposed to an inclined surface which is provided at an upper portion of the second unit and whose distance from the output port of the passive radiator increases toward a radially outer side of the housing.

There is provided a headrest housing a dipole loudspeaker for producing sound at bass frequencies in a forward direction and in a rear direction, a response 180 degrees out of phase from respective front and rear resonating surfaces. The headrest includes a waveguide formation to isolate sound from travelling through the headrest between the front surface and the rear surface. The headrest also includes an attachment formation, and the attachment formation suspends the first frame of the dipole loudspeaker and acts as a secondary suspension system. By including waveguide formations, the sound from the front surface of the dipole speaker can be guided outside of the headrest, wherein the shortest path from the front surface to the back surface is extended to be around the outside of the headrest. Guiding the sound path to be external to the headrest, prevents internal sound guiding compressing the intended path length.

Provided is electronic equipment capable of suppressing a change in sound quality output from a speaker. An operating device (10) (electronic equipment) has a speaker (2) with a terminal section P, a frame (50) (storage member), and an elastic member (3). The frame (50) has a wall section (52) that defines at least part of a storage chamber A that stores the speaker (2). An opening (53) from which the sounds from the speaker (2) are output is formed in the wall section (52). The elastic member (3) supports a lower surface of the speaker (2), is arranged at a position avoiding the terminal section P of the speaker (2), and presses the speaker (2) against an edge (54) of the opening (53).