85results about "Bending wave transducers" patented technology

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.

In an acoustic vibration device that vibrates panel material, a drip-proof structure is added while suppressing an increase in the height dimension. [Solution] The acoustic vibration device 1 comprises a frame 11 fixed to the ceiling interior material 501 side between the ceiling interior material 501 and the outer panel 502 of the vehicle, a vibration unit 12 including a cylindrical body 4 and a magnetic circuit unit 3, a voice coil 52 arranged in the magnetic gap of the magnetic circuit unit 3, a bobbin 51 around which the voice coil 52 is wound, a first damper 61 connecting the cylindrical body 4 and the bobbin 51, a second damper 62 connecting the cylindrical body 4 and the frame 11, and a drip-proof cover 2 to prevent water droplets falling from the outer panel 502 side from adhering to the second damper 62. The drip-proof cover 2 is formed in an annular shape with an open center, is attached to the vibration unit 12, and is positioned on the outer circumference side of the magnetic circuit unit 3 and above the second damper 62. The upper part of the magnetic circuit unit 3 is positioned above the drip-proof cover 2, passing through the opening 23 of the drip-proof cover 2.

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 sound apparatus comprises a vibration member, an enclosure at a rear surface of the vibration member, a connection member between the vibration member and the enclosure, movably supporting an edge of the vibration member, and a vibration apparatus vibrating the vibration member.

The invention relates to a glazing unit comprising: – a glass sheet or a glazed assembly (1) comprising at least one hole; and – at least one audio exciter (2) mounted on a base; wherein the base is inserted into the at least one hole in the glass sheet or glazed assembly (1). The invention also relates to methods for manufacturing such a glazing unit.

This disclosure relates to a complete set of equipment, particularly a display panel that generates sound. The display device according to this disclosure includes: a display module; a back cover disposed on the rear surface of the display module; a recessed portion recessed into the back cover from a first surface of the back cover with a first width and a first depth; a penetrating portion penetrating from a second surface of the back cover to the recessed portion with a second width and a second depth, the second width being less than the first width, and the second depth corresponding to the difference between the thickness of the back cover and the first depth; and a first piezoelectric vibration unit disposed at a stepped portion between the penetrating portion and the recessed portion.

A sound apparatus includes a vibration member having a plate shape; and a first vibration device, a plurality of second vibration devices, and a third vibration device configured to each have a plate shape including a first main surface and a second main surface opposite to each other and configured to vibrate based on a driving signal input thereto. The first main surface of the first vibration device may be connected to the vibration member, a portion of the second main surface of the first vibration device and a portion of the first main surface of the third vibration device may be connected to each other by an elastic member so that the first main surface of the third vibration device is spaced apart from and opposite to the second main surface of the first vibration device by a certain distance. A portion of each of the plurality of second vibration devices may be connected to a portion of the third vibration device and a portion of the first main surface of each of the plurality of second vibration devices may be connected to a portion of the vibration member by an elastic member, so that the plurality of second vibration devices extend radially from the third vibration device in a plane. A driving signal input to the first vibration device may have a phase opposite to a phase of a driving signal input to the third vibration device.

To provide a vibration device that improves reliability and sound pressure characteristics, and a device including the same.SOLUTION: A vibration device includes a vibration generator 10 including a piezoelectric material in a vibration structure 11, and a sensor unit 30 configured as the vibration generator, and is capable of correcting or compensating for changes in the electrical characteristics of the vibration generator, and capable of correcting or compensating for the vibration characteristics of the vibration generator.SELECTED DRAWING: Figure 1

Provided in the embodiments of the present disclosure is an assembled screen unit, including a display panel, a frame, a sound-production stimulation unit, and a supporting structure; the supporting structure is configured to support the sound-production stimulation unit; the back side of the display panel includes a central region and an edge region; the sound-production stimulation unit is in contact with the central region; the frame is configured to support the display panel; the frame includes a first sub-portion and a second sub-portion; and a first vibration isolation portion is provided between the first sub-portion and the display panel; a second vibration isolation portion is provided between the second sub-portion and the display panel; and the first vibration isolation portion has a thickness less than the second vibration isolation portion.

An electronic device is disclosed, comprising: an electronic device housing having a housing plate portion; at least one speaker arranged in the electronic device housing, the speaker comprising: a magnetic circuit assembly defining a magnetic gap and comprising a magnet and a magnetic conductive assembly, the magnetic conductive assembly being configured to guide and concentrate magnetic flux from the magnet through the magnetic gap, the magnetic conductive assembly comprising a first magnetic conductive member constituting at least a portion of bottom of the magnetic circuit assembly, and a vibration assembly comprising a diaphragm and a voice coil connected to the diaphragm, with at least a portion of the voice coil being suspended within the magnetic gap, wherein the first magnetic conductive member of the magnetic circuit assembly is directly fixedly connected to the housing plate portion of the electronic device housing.

A system comprising a diaphragm having a first face and a second face, a roll surround disposed around a perimeter of the first face of the diaphragm, a modal coupling apparatus comprising a plurality of connecting arms and a central body, the modal coupling apparatus coupled to the second face of the diaphragm using the plurality of connecting arms, the central body having a shaped first end for receiving a voice coil former, a voice coil wound upon and secured to an outer surface on a first end of the voice coil former, a second end of the voice coil former placed within the shaped first end of the central body, and a positive electrical terminal and a negative electrical terminal, each terminal coupled to the voice coil for transmitting an electrical current through the voice coil upon receiving electrical power.

Embodiments of the present disclosure provide a display apparatus and an electromagnetic actuator, the display apparatus includes a display structure, a sound-emitting substrate, at least one electromagnetic actuator and a stabilizer; where one side of the sound-emitting substrate is attached to the display structure, and the electromagnetic actuator is fixedly attached to the other side of the sound-emitting substrate through the stabilizer; the electromagnetic actuator includes a bracket and a plurality of flexible support feet extending away from the bracket. The electromagnetic actuator is fixedly arranged on the sound-emitting substrate through the stabilizer, and the bracket receives the electromagnetic actuator, the plurality of flexible support feet can keep the electromagnetic actuator stable during the vibration process of the electromagnetic actuator, which helps avoid position shift of the electromagnetic actuator under long-time working.

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.

A display device includes a display panel having first, second, and third areas; at least three sound generating actuators including first, second, and third actuators each spaced apart from the other two in a long axis direction of the display panel, wherein the first, second, and third actuators each contact the display panel at the first, second, and third areas, respectively, to generate sound by vibrating the display panel; and a support structure at a rear side of the display panel configured to support the at least three sound generating actuators.

A display device according to the present disclosure comprises a display unit, which includes a panel displaying a video, and an output control unit, which performs a control operation to cause the panel to emit sound by driving a vibration exciter arranged on a rear surface of the panel to set the panel into vibration. The vibration exciter comprises a vibration excitation element, a first element to which the vibration excitation element is attached, and a support element, which serves as a leg section for attaching the first element to a substrate forming the panel, the support element being configured to secure the first element to the substrate.

The present disclosure relates to a complete set of equipment, in particular, a vibration plate with sound generation. A display device according to the present disclosure includes a display module, a back cover provided at a rear surface of the display module, a compartment provided within the back cover, a fixing element provided within the compartment, a sound generation unit inserted into the compartment and mounted by the fixing element, and an adhesive element attaching an upper surface of the sound generation unit and a rear surface of the display module.

The present invention relates to a vehicle window comprising: – a glass sheet (4) or a glass assembly; – a plastic material component (5) partially covering the glass sheet or glass assembly; – at least one fixing system for fixing an audio exciter mounted on the glass sheet or glass assembly, the fixing system comprising a base and an attachment portion (3), the base of the fixing system being connected to the plastic material component (5); and – at least one audio exciter fixed to the attachment portion (3) of the fixing system. The invention also relates to a method for manufacturing such a window.

The present disclosure relates to a complete set of equipment, in particular, a display panel with a sound generation. The display device according to the present disclosure comprises: a display module; a back cover arranged at the rear surface of the display module; a recessed part recessed into the back cover from the first surface of the back cover with a first width and a first depth; a penetrating part penetrating to the recessed part from the second surface of the back cover with a second width and a second depth, the second width is smaller than the first width, and the second depth corresponds to the difference between the thickness of the back cover and the first depth; and a first piezoelectric vibration unit arranged at the stepped part between the penetrating part and the recessed part.

To provide an apparatus which can enhance a sound characteristic and a sound pressure characteristic of a low-pitched sound band generated by vibration of a passive vibration member.SOLUTION: The apparatus includes: a passive vibration member; a vibration device including a plurality of active vibration members coupled to a rear surface of the passive vibration member, the plurality of active vibration members being arranged along one or more of a first direction and a second direction intersecting with the first direction; and a supporting member which covers the vibration device and supports the rear surface of the passive vibration member. A driving signal applied to at least one of the active vibration members differs from a driving signal applied to the others of the active vibration members.SELECTED DRAWING: Figure 1

The present invention relates to a subframe mounting assembly structure of a vehicle body, which includes a fender side member mounted at a rear end portion of a front side member in a longitudinal direction of the vehicle body, a first side extension member arranged in a lateral direction of the vehicle body and connected to an inner side of the fender side member, a second side extension member arranged in the lateral direction of the vehicle body and connected to an outer side of the fender side member, a tunnel member arranged in the lateral direction, the tunnel member connecting the first side extension members on both sides thereof to each other at a central portion of the vehicle body, and the tunnel member having the same phase as the first side extension members, and a cap-type bracket arranged to cover the fender side member at a portion where the fender side member is connected to the first side extension member and the second side extension member.

A lamp for a vehicle includes a lamp housing part having an internal space to accommodate a light source, an outer lens part coupled to one side of the lamp housing part and to cover the internal space, and a vibration part fixed to the outer lens part. The vibration part includes a polarized piezoelectric element, and a first electrode and a second electrode provided to respectively face two opposite sides based on a direction in which the piezoelectric element is polarized. In response to a change in voltage over time being applied to the first electrode and the second electrode, the piezoelectric element outputs a sound. The piezoelectric element is in contact with and fixed to one side of the outer lens part.

A piezoelectric transducer is disclosed for providing haptic feedback. The transducer has a stacked structure including a protective layer, a piezoelectric layer, two electrodes positioned on the top and bottom of the piezoelectric layer, an adhesive layer positioned over the piezoelectric layer, and a substrate layer positioned on top of the adhesive layer. The transducer is cured using an autoclave process giving it a curved shape which facilitates electrical connection with a printed circuit board. Curved and custom-shaped molds may be used to effectively increase and precisely control the curvature of the transducer. The transducer may be used to provide haptic feedback in trackpads, keyboards, touch displays, and virtual buttons. One implementation is a bimorph piezoelectric transducer that includes two piezoelectric layers.

Vibration device (100, 200, 300, 400, 500, 600), comprising: a glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F); an excitation device (13) attached to the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F) which sets the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F) into vibration; an enclosure element (15, 15A, 15B, 15C, 15D, 15E) that defines an interior space (19) by enclosing a section, including a mounting position of the excitation device (13), of the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F), wherein an end section of the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F) is exposed through an opening (21) of the interior space (19) to the outside of the interior space (19); and a shielding element (17) for sound shielding between the opening (21) and the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F), wherein the shielding element (17) divides the glass membrane (11, 11A, 11B, 11C, 11D, 11E, 11F) into an excitation area (A1) located inside the interior (19) and a vibration area (A2) located outside the interior (19).

An acoustical transducer composite glass panel includes a primary glass pane, a secondary glass pane, and at least one excitable glass pane configured to acoustically respond to an excitation stimulus. The composite glass panel also includes an isolative material section configured to separate a corresponding excitable glass pane from the secondary glass pane. The secondary glass pane is arranged along the primary glass panel and equidistant therefrom. Each excitable glass pane is arranged along the primary glass panel and equidistant therefrom and adjacent to the secondary glass pane, and a first portion of each excitable glass pane is spaced apart from the primary glass pane. Additionally, the isolative material section is arranged along the primary glass panel and equidistant therefrom, between an edge of the secondary glass pane and an edge of a second portion of the corresponding excitable glass pane.