100results about "Transducer diaphragms" patented technology

Display device. A display device is disclosed, including a display panel configured to display an image by emitting light; a rear surface structure configured to surround a side surface and a rear surface of the display panel; a vibration generation device connected with the rear surface structure and configured to vibrate the display panel; a rear sound emission portion located between the display panel and the rear surface structure; and a rear sound guide member located between the display panel and the rear surface structure to surround the vibration generation device in a spiral shape and configured to be connected with the rear sound emission portion.

The vibration apparatus may include a vibration generating portion including a first vibration portion and a second vibration portion overlapping the first vibration portion, a first cover member at a first surface of the vibration generating portion, a second cover member at a second surface different from the first surface of the vibration generating portion, and a signal cable including first, second and third signal lines connected to the first vibration portion and the second vibration portion and disposed between the first cover member and the second cover member. An apparatus for vibration may include a passive vibration member and the vibration apparatus.

A display apparatus comprises a display member including a display panel having a plurality of pixels that are configured to display an image, a sound output device configured to output sound, and an input / output interface configured to be connected to an external sound apparatus via wire, the sound output device and the external sound apparatus are configured to output sound according to a sound mode responsive to the external sound apparatus being connected to the input / output circuit via the wire.

Provided is a curing reactive organopolysiloxane composition that forms a pressure-sensitive adhesive layer having excellent curing properties, a wide range of designable viscoelastic properties such as storage elastic modulus (G′) and the like, and practically sufficient pressure-sensitive adhesive strength and tensile adhesive strength. The organopolysiloxane composition comprises: (A) an organopolysiloxane having an alkenyl group; (B) an organopolysiloxane resin with 9 mol % or less of hydroxyl groups or the like relative to all silicon atoms in a molecule or resin mixture thereof; (C) an organohydrogenpolysiloxane; (D) an organic silicon compound having an alkenyl group; and (E) a hydrosilylation reaction catalyst. A ratio (molar ratio) of the substance amount of SiH groups in component (C) relative to the sum of alkenyl groups in components (A), (B) and (D) is 1.0 or more.

The invention relates to an acoustic transducer unit (1), in particular for in-ear headphones, having an electrodynamic acoustic transducer (2) comprising a first membrane (10), preferably with a membrane perforation (42), and having at least one MEMS acoustic transducer (3) comprising a second membrane (30).

A display device includes: a display panel comprising a first area and a second area; a sound generator disposed on the display panel in at least one of the first area and the second area; a dividing member disposed on the display panel at the boundary between the first area and the second area and extending in a predetermined direction; and a blocking member disposed on the display panel in at least one of the first area and the second area and spaced apart from the dividing member.

A phase plug for a compression driver includes a body having an entrance side with a front surface and an exit side with a back surface, the body disposed about a central axis. A plurality of channels are formed through the body from the entrance side to the exit side, each of the plurality of channels having an annular configuration with an entrance at the front surface, an exit at the back surface, and a path length between the entrance and the exit. The plurality of channels have unequal path lengths such that a sound signal propagating through the plurality of channels forms a convex wavefront at the exit side of the phase plug.

Acoustic output device, characterized in that it comprises: a housing in which an inner chamber is formed; a support structure that allows the housing to be held in a position on the ear without blocking the external ear canal; a first loudspeaker which is accommodated in the inner chamber, the first loudspeaker comprising a first magnet and a first diaphragm which are spaced apart from each other in a direction of vibration of the first diaphragm; and a second loudspeaker which is incorporated in the inner cannon, the second loudspeaker comprising a second magnet and a second diaphragm spaced apart from each other in a direction of vibration of the second diaphragm; wherein the first magnet and the second magnet are spaced apart from each other in the direction of oscillation of the first membrane, and wherein the first magnet and the second magnet have the same magnetic poles which are arranged opposite each other.

The invention relates to a microelectromechanical component (1) with a housing (2) and a displacer structure (3) arranged in the housing (2), wherein the displacer structure (3) has a coupling element (4) movable within the housing (2) and a plurality of displacer walls (5) extending parallel to each other and perpendicular to the coupling element (4), wherein the displacer walls (5) define laterally adjacent volume chambers (6), wherein a fluid can be conveyed into and displaced from the volume chambers (6) by a relative movement between each pair of adjacent displacer walls (5), wherein at least one first displacer wall (5, 5') is mechanically connected to the movable coupling element (4) and is movable together with the coupling element (4), and wherein the at least one first displacer wall (5, 5') movable together with the coupling element (4) mechanically connected to the housing (2).The invention further relates to a microelectromechanical loudspeaker (12) with such a microelectromechanical component (1).

The invention relates to the technical field of loudspeaker drum paper blank pressing gasket punching, in particular to adjustable loudspeaker drum paper blank pressing gasket punching equipment which comprises a machine shell and a supporting plate fixedly connected to the machine shell, openings are formed in the four sides of the middle of the machine shell, and guide plates corresponding to the openings of the machine shell are fixedly connected to the two sides outside the machine shell. A punching head located over the supporting plate is installed on the inner side of the machine shell. The drum paper is punched through the punching head, then the material pushing rod and the movable block move downwards to push a punched drum paper edge pressing gasket to move downwards to be separated from the drum paper, the drum paper edge pressing gasket moves downwards to fall onto the limiting plate, the material pushing rod presses the drum paper edge pressing gasket onto the limiting plate, and then the drum paper edge pressing gasket is pressed onto the limiting plate. And then the ejector rod moves downwards to eject out the circular waste on the inner side of the drum paper edge pressing gasket to complete stripping, the steps are repeated, the punched drum paper edge pressing gasket can be disengaged from the drum paper continuously, the circular waste can be separated from the drum paper edge pressing gasket, and therefore the production efficiency is improved.

An acoustic excitation device includes a frame fixed to a panel material, an excitation unit including a cylindrical body and a magnetic circuit unit attached to an inner circumference of the cylindrical body, and a drip-proof cover that prevents water droplets falling from above the panel material, wherein the drip-proof cover is attached to the excitation unit.

A vibration apparatus includes a vibration generating part including at least one vibration part, a first cover member at a first surface of the vibration generating part, a second cover member at a second surface of the vibration generating part, the second surface of the vibration generating part being different from the first surface of the vibration generating part, and a signal cable including first and second signal lines connected to the at least one vibration part, the first and second signal lines are disposed between the second cover member and the vibration generating part.

A display device in which a front electrode serving as a diaphragm in a condenser-type microphone module is disposed on one surface of a display panel, and a rear electrode is disposed under a frame, so that a change in capacitance between the front electrode and the rear electrode caused by the vibration of the front electrode is sensed with high sensitivity. Accordingly, the condenser-type high-sensitivity microphone can be integrated into the display device.

A method for verifying the vibration simulation of a mechanical structure and optimizing the elasticity and damping parameters used in the model by analyzing a vibration waveform measured on the surface of an existing prototype of this mechanical structure without physical contact. The correlation between the simulated and measured vibration waveforms is evaluated using an elasticity and damping metric, with optimized elasticity and damping parameters determined in an iterative simulation process. These metrics capture distinct properties of the vibrational shape: the elasticity metric employs the local wave number on the surface of the structure, while the damping metric assesses the decline of the envelope of traveling waves moving away from the excitation point and returning. This method is beneficial for adapting the complex modulus of elasticity in the numerical simulation of mechanical structures made from different material components that radiate sound across a broad frequency range.

Disclosed are gaming systems, methods, and machines that include a display unit for a sound directed immersive gaming experiences. In some examples, the display unit may include a liquid crystal display (LCD) screen acting as the speaker cone through one or more sound systems. An LCD screen may have one or more speaker transducers integrated to generate and amplify one or more audible sound waves from one or more sound signals in a directional speaker cone.

A terminal apparatus includes a first structural component, a second structural component, a third structural component, and at least one acoustic element, where the second structural component is located between the first structural component and the third structural component, and the first structural component, the second structural component, and the third structural component surround and form a cavity; the acoustic element is accommodated in the cavity; at least one sound emission slot is formed between the first structural component and the second structural component and / or between the second structural component and the third structural component, a sound guide slot is in communication with the sound emission slot, the sound emission slot is located on a side of the sound guide slot that faces away from the acoustic element, and the acoustic element transmits sound to the outside through the sound guide slot and the sound emission slot.

The application discloses a sound amplification device, which comprises a vibrating body, the vibrating body comprises at least one first vibrating surface and at least one contact area for contacting with a vibration source, the vibration source and the contact area are in detachable contact, the area of the first vibrating surface is larger than that of the contact area, the vibration source is used for generating vibration, the vibration is transmitted to the first vibrating surface through the contact area and is transmitted outward through the first vibrating surface.

A system and method for removing unwanted vibrational noise is provided. The system can detect, by one or more microphones of the system, at least one audio signal that includes audio content output from at least one speaker and audio data from one or more other sources or caused by the one or more other sources. The other audio data can include determined undesired vibrational noise that causes distortion of the at least one audio signal. The system can determine, by at least one sensor of the system, a subset of the other audio data based in part on determining at least one motion of a user of the system or motion of one or more other users. The system can remove or reduce the undesired vibrational noise from the at least one audio signal to enable output of sound associated with the modification of the at least one audio signal.

One or more embodiments of the present specification relate to an acoustic output device comprising: a housing forming an inner cavity; the supporting structure is used for wearing the shell on the ear without blocking the external auditory canal; a first loudspeaker, wherein the first loudspeaker is accommodated in the inner cavity; the first loudspeaker comprises a first magnet and a first vibrating diaphragm, and the first magnet and the first vibrating diaphragm are arranged at an interval along the vibration direction of the first vibrating diaphragm; a second loudspeaker, wherein the second loudspeaker is accommodated in the inner cavity; and the second loudspeaker comprises a second magnet and a second vibrating diaphragm, and the second magnet and the second vibrating diaphragm are arranged at an interval along the vibration direction of the second vibrating diaphragm.

A medical device with audio output for use in a sterile field may include a housing and an audio output device. The housing may include an interior surface and an exterior surface, the interior surface may define an interior space of the housing including the audio output device, and the interior space of the housing may be fluidically sealed from an external environment by the housing. The audio output device may include a speaker and / or an audio exciter.

A display panel includes at least two first display units arranged along a column direction to form display unit columns, in a display unit column of the display unit columns, a distance L2 of sound channel centers of two adjacent first display units in the column direction is:2×W×tan⁡(α2)wherein W is a vertical distance between a sound receiving position and a side surface of the display panel facing the sound receiving position; a is an angle between linear distances respectively from the sound channel centers of the two adjacent first display units to the sound receiving position in the display unit column, and the a is greater than 3.4 degrees.

A compression chamber with two acoustic exit paths includes an inner bounding face formed by the outer surface of a vibrating diaphragm and an outer bounding face formed by a perforated occluding body positioned opposite the diaphragm. The perforated occluding body includes at least one opening extending through its thickness that forms a first acoustic exit path. A second acoustic exit path exists around the perimeter edge of the compression chamber. The acoustic energy from both exit paths combines to provide frequency-selective increase in sound pressure level and directional control over specific frequency ranges. The design enables a single electrodynamic transducer to function effectively for both broadband acoustic vehicle alerting system applications and high sound pressure level horn applications through control of acoustic impedance parameters including perforated occluding body thickness, perforation diameter, and total open area.

A display device (2) includes: a display panel (8) that displays an image on a front surface (8a) of the display panel (8); a rear cover (10) that includes a front surface (10a) facing a back surface (8b) of the display panel (8); and an audio output unit (12) that outputs audio by causing the rear cover (10) to vibrate. The audio output unit (12) is provided spaced apart from the back surface (8b) of the display panel (8) and supported on a back surface (10b) of the rear cover (10).

To achieve higher acoustic performance.SOLUTION: The first sound output unit of the display device and the second sound output unit of the reproduction device output the sounds on the basis of the sound signal of the center channel of the content, and the first sound output unit outputs the high-frequency sound included in the sound of the content by vibrating the component related to the display unit, the second sound output unit outputs, from a speaker corresponding to a center channel, a sound in a mid-range and a low-range that are lower than the high-range, and the reproduction system complements and outputs the low-range whose reproduction is limited by the sound output by the vibration of the component in the first sound output unit. The present disclosure can be applied to, for example, an AV system including a television receiver and an audio device.SELECTED DRAWING: Figure 4

A display apparatus includes a liquid crystal display panel and a backlight module, a first sealed air cavity formed inside the liquid crystal display panel, and the backlight module being located on one side of the liquid crystal display panel and forming a second sealed air cavity with the liquid crystal display panel; and a sound-emitting board and a sound-emitting exciter, the sound producing board being fixed to the surface of the backlight module far away from the liquid crystal display panel, and a vibration output terminal of the sound-emitting exciter being fixed to the surface of the sound-emitting board far away from the backlight module.

A method of synthesizing an audio signal for use by a horn apparatus for a vehicle to produce an audible warning sound, wherein the audio signal contains a fundamental frequency and harmonics corresponding to the fundamental frequency. The method includes: selecting weights for each of a plurality of harmonics corresponding to a fundamental frequency; using the selected weights to synthesize a precursor audio signal from only the fundamental frequency and the plurality of harmonics; compressing the precursor audio signal one or more times to provide an audio signal which has a crest factor that is below a predetermined threshold.

A display device can include a display panel having a first display area and a second display area, a back plate coupled to a rear surface of the display panel, a first vibration generator disposed in a first back plate area, a second vibration generator disposed in a second back plate area, a plurality of receivers disposed on the back plate, and a touch circuit determining a position of a touch object from a reception vibration signal detected by the plurality of receivers.

There is provided a display device including: a substrate including an upper surface, a first side surface extending from a first side of the upper surface, and a second side surface extending from a second side of the upper surface, in which the first side surface is bent with respect to a first bending line that is a boundary between the upper surface and the first side surface, and the second side surface is bent with respect to a second bending line that is a boundary between the upper surface and the second side surface; the second side surface is bent with respect to a second bending line which is a boundary between the upper surface and the second side surface; a first sound unit below the upper surface and configured to output sound by vibrating the vibrating layer; and a first sensing unit below the first side surface and configured to sense a current value or a voltage value according to a force applied to the first sensing unit.

This invention provides a display device comprising a display panel; a backlight module including an optical film assembly, a backlight plate, and a plurality of spaced-apart vibration transmission components, the optical film assembly being located between the display panel and the backlight plate; and an actuator including an actuator body and an actuator connected to the backlight plate for driving the backlight plate to vibrate; wherein the backlight plate and the display panel are spaced apart and form a gas layer, and the vibration transmission components elastically press against the backlight plate and the optical film assembly to transmit the vibration of the backlight plate to the display panel. The display device provided by this invention can achieve sound generation through display panel vibration, and the display device exhibits high structural stability.