A loudspeaker includes a support, a magnetic assembly, a first vibration assembly, and a second vibration assembly. The first vibration assembly and the second vibration assembly are respectively arranged on a first side and a second side opposite to the first side of the support; the first vibration assembly includes a first voice coil and a first vibration diaphragm, the second vibration assembly includes a second voice coil and a second vibration diaphragm, the first vibration diaphragm and the second vibration diaphragm are both connected to the support; and the support is provided with an accommodating space for arranging the magnetic assembly, a magnetic gap is formed between the magnetic assembly and the support, the first voice coil and the second voice coil are both at least partially located in the magnetic gap, the first vibration assembly and the second vibration assembly emit ultrasonic waves having different frequencies.

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 present technology relates to a display device and a speaker device capable of outputting sound from the display surface of a non-self-luminous display panel.

Provided is a display device including: a display panel unit that includes a non-self-luminous display cell; a light source unit that irradiates the display panel unit with light from a back surface; and an excitation unit that vibrates a constituent member constituting the display panel unit and outputs sound from a display surface of the display cell. The excitation unit provides excitation to an excitation member having a predetermined shape and a predetermined color to vibrate the constituent member that is fixed to the excitation member by a predetermined fixing method. The present technology can be applied to, for example, a liquid crystal display device.

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.

This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.

The present disclosure provides a loudspeaker device. The loudspeaker device may include an earphone core configured to transfer an electrical signal to a vibration signal; an auxiliary function module configured to receive an auxiliary signal and perform an auxiliary function; a first flexible circuit board configured to electrically connect to an audio signal wire and an auxiliary signal wire of an external control circuit, the audio signal wire and the auxiliary signal wire being electrically connected with the earphone core and the auxiliary function module, respectively through the first flexible circuit board; and a core housing configured to accommodate the earphone core, the auxiliary function module, and the first flexible circuit board. The wiring process inside the loudspeaker device provided in the present disclosure may be simplified, thereby further reducing a volume of the loudspeaker device.

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.

An electrodynamic transducer having a coil, a membrane, and a plate is disclosed, wherein the transducer is adapted to generate a sound pressure level in the human-audible acoustic range and the ultrasonic range so that the transducer may be used as a speaker and an ultrasonic proximity sensor. The transducer may be adapted to generate a sound pressure level above about 88 dB between 20 kHz and 70 kHz. The plate may include a structural rigidity increasing feature such as a domed portion or a population of ribs, which may increase the generated sound pressure level in the ultrasonic range. The transducer may also include a front resonator which may be used to further tune and/or increase the generated sound pressure level in the ultrasonic range.

A loudspeaker is disclosed. The loudspeaker includes a magnetic circuit system including a first magnetic part, a second magnetic part surrounding the first magnetic part, and a magnetic gap formed by the first and second magnetic parts. At least one of the first and second magnetic parts is a magnet. The first magnetic part includes a body and an avoiding part formed surrounding an edge of the body.

The present invention discloses a speaker module. The speaker module comprises an inner cavity defined by a shell, and a first induction coil. A single speaker piece is provided in the inner cavity of the shell, the first induction coil is configured to be electrically connected with a terminal device, and a second induction coil, which corresponds to the first induction coil and is configured to be electrically connected with a voice coil in the single speaker piece, is also provided on the shell. According to the speaker module, an output end of a complete machine and the voice coil are conducted through the first induction coil and the second induction coil; and by the adoption of such a structure, the space of the module can be greatly saved, and a lighter and thinner complete machine can be developed. In addition, the problems, such as poor performance due to the change of the resistance value in a traditional electro-acoustic connection way, can be solved. By the adoption of the structure, the first induction coil is allowed to be provided outside the inner cavity, the shell can be sealed at a time, wiring from the outside to the inside is not needed any more. In this way, secondary sealing of a lead position is avoided, production and transportation of the speaker module are greatly simplified, and assembly between the speaker module and the terminal device is also greatly simplified.