A display apparatus includes: a display panel configured to display an image, a support member on a rear surface or a side surface of the display panel, the support member being configured to support the display panel, a sound-generating device in contact with the display panel, the sound-generating device being configured to directly vibrate the display panel to generate sound, and a circuit board between the display panel and the support member, wherein the sound-generating device is on the circuit board.

The present disclosure provides a surround element, distortion-reducing drum paper, and a loudspeaker, and relates to the technical field of loudspeakers. The surround element is provided with an anti-distortion structure, and the anti-distortion structure includes at least one convex arc and at least one concave arc. The convex arc and the concave arc are connected to each other in a radial direction. The convex arc and the concave arc have different arc radii. The disclosure greatly reduces the stiffness K of the drum paper with the change of the position of the voice coil, thereby achieving the effect of reducing sound distortion.

An adhering portion of an electroacoustic sound generator provided by the present disclosure, for engaging a front cover and a diaphragm, includes a thickened layer for coupling with the diaphragm, which effectively avoid the glue from overflowing. The hardness of the front cover is 150˜200 HV, which makes it easier to manufacture the thickened layer.

A speaker diaphragm includes a cone formed of a first material including first fibers derived from a plant and a first resin for binding the first fibers together, and an edge portion which is positioned at an outer peripheral portion of the cone and formed of a second material including a second resin, in which the cone and the edge portion are integrally formed. In addition, at least one of the content and the composition of the first resin and the second resin is different.

A microfabricated structure includes a deflectable membrane, a first clamping layer on a first surface of the deflectable membrane, a second clamping layer on a second surface of the deflectable membrane, a first perforated backplate on the first clamping layer, and a second perforated backplate on the second clamping layer, wherein the first clamping layer comprises a first tapered edge portion having a negative slope between the first perforated backplate and the deflectable membrane.

A speaker of the present invention arranges the grooves on the dome, which forms a leakage passage that helpful for the air current to circulate between the grooves and the voice coil, and therefore, the air current in the voice coil can timely circulate through the leakage passage between the voice coil and the dome. The inner and outer air pressure difference of the voice coil can be effectively decreased after the amplitude of the vibrating system increases, and the influence on the performance of the speaker imposed by the unbalance of the inner and outer air pressures of the voice coil is avoided.

A microfabricated structure includes a deflectable membrane, a first clamping layer on a first surface of the deflectable membrane, a second clamping layer on a second surface of the deflectable membrane, a first perforated backplate on the first clamping layer, and a second perforated backplate on the second clamping layer, wherein the first clamping layer comprises a first tapered edge portion having a negative slope between the first perforated backplate and the deflectable membrane.

A combined light and loudspeaker driver device comprising a housing supporting a loudspeaker driver, a heat removal element, electronic components and a light source. The heat removal element includes a column extending along a central longitudinal axis to a base of the housing, to meet a heat sink formed around the central longitudinal axis to the rear of the housing. The light source provides task lighting and is a heat source. It is mounted on a front end of the column distal from the heat sink at the base of the housing, to optimize conduction of heat away from the light source. The housing is generally cup shaped and has side walls. The interior of the side walls is parallel with the central longitudinal axis of the housing over the majority of the rearward depth thereof resulting in a large void behind the loudspeaker diaphragm, leading to improved sound.

The present disclosure discloses a diaphragm for radiating sound, including: a dome; a suspension surrounding the dome, including a first connecting portion adjacent to the dome and having a first surface and a second surface, a suspending portion extending from and surrounding the first connecting portion, and a second connecting portion extending from and surrounding the suspending portion. The suspending portion includes a concave part recessed along a direction from the first surface to the second surface, an inner edge connecting to the first connecting portion, and an outer edge connecting to the second connecting portion. The diaphragm further includes a stiffening layer located on the first surface of the first connecting portion, extending from the inner edge toward the dome. The present disclosure further includes a speaker incorporating the diaphragm.

A speaker and a method for manufacturing the speaker are provided. The speaker includes: a vibration unit; a magnetic circuit unit; and a housing for receiving the vibration unit and the magnetic circuit unit. The vibration unit includes: a first diaphragm fixed to the housing; a voice coil arranged under the first diaphragm to drive the first diaphragm to vibrate and emit sound; and an elastic support member arranged under the voice coil, fixed to the housing and elastically supporting the voice coil. The elastic support member includes a flexible circuit board connected to the voice coil and a second diaphragm fixed under the flexible circuit board. The housing includes a holder, the elastic support member is fixed to the holder, and the flexible circuit board is attached and fixed to the second diaphragm.