66results about "Cellulose-like diaphragms" patented technology

There is a composite material for an acoustic transducer diaphragm comprising: a thermoplastic polymer resin, a graphitic filler, and optionally a coupling agent. The thermoplastic polymer resin is selected from the group consisting of polypropylene, polyethylene, poly(methyl methacrylate), polycarbonate, polyoxymethylene, cyclic olefin copolymer, polyethylene terephthalate, acrylonitrile butadiene styrene, polybutylene terephthalate, polyamide, poly(ADP-ribose) polymerase, polyethylenimine, polyamide-imide, polyether ether ketone, polyolefin, polyester, polycarbonate, polysulfone, polyacetals, polyvinyl acetals, polyketone, polyamides, cyclic olefin copolymer, thermoplastic thermotropic liquid-crystal polymer, polyphenylene sulfide, polyimide and a mixture thereof. The graphitic filler is selected from the group consisting of graphene oxide, reduced graphene oxide, graphite, graphene and carbon nanotubes, and a mixture thereof. The coupling agent or a mixture is selected from the group consisting of titanium organometallics, aluminum organometallics, zirconium organometallics, and silicon organometallics.

The present invention discloses a diaphragm for a speaker including a lower surface area, a central area formed on said lower surface area, an upper surface area formed on said central area. The upper surface area, the central area and the lower surface area includes homogeneous amorphous materials. The diaphragm includes internal stress changing with a depth from the surface to the center of the diaphragm.

The present invention relates to an electronic device. A display device includes: a display module including a display panel configured to display an image; a rear cover located on a rear surface of the display module; and a sound generation module located at the rear cover and configured to vibrate the display module to generate sound, and a rear surface of the sound generation module is covered by the rear cover.

Wireless-enabled loudspeaker includes a capacitive touch user interface. The loudspeaker may comprise at least one electroacoustic transducer, a processor in communication with the at least one electroacoustic transducer, and an exterior surface comprising a capacitive touch user interface that allows a user to control operation of the loudspeaker. The exterior surface acts a dielectric for the capacitive touch user interface. The loudspeaker may comprise a wireless transceiver circuit for receiving and transmitting wireless communication signals via a wireless network. The wireless transceiver circuit may receive wirelessly audio content from streaming audio content servers that are connected to the Internet. The capacitive touch user interface comprises a plurality of capacitive sense electrodes.

The loudspeaker includes a voice coil assembly comprising a voice coil 1 and a voice coil former or bobbin 2 upon which the voice coil is wound. The voice coil assembly moves within an air gap 7 forme

The invention relates to a vibrating diaphragm suitable for a loudspeaker. The vibrating diaphragm sequentially comprises an upper surface area, a lower surface area and an upper surface area from top to bottom, a central region; and a lower surface region; wherein the upper surface area, the central area and the lower surface area are all made of homogeneous amorphous materials, and the homogeneous amorphous materials comprise silicon dioxide; and the vibrating diaphragm is made of a hard homogeneous amorphous material with internal stress change, and the stress change is changed along with the depth from the surface to the center of the vibrating diaphragm.

A diaphragm is injection-molded using cellulose composite pellets, the cellulose composite pellets comprise at least one of a transparent cellulose material, a resin material, a light diffuser, a dispersant, and a pigment, and the transparent cellulose material is in 30wt% to 70wt%.

A diaphragm is injection-molded using cellulose composite pellets, the cellulose composite pellets comprise at least one of a transparent cellulose material, a resin material, a light diffuser, a dispersant, and a pigment, and the transparent cellulose material is in 30wt% to 70wt%.

A diaphragm to be provided in an electroacoustic transducer includes: a first protrusion that protrudes from at least one of a front face or a back face of the diaphragm and extends in a spiral from a center of the diaphragm or a vicinity of the center toward an outer circumference of the diaphragm; and a second protrusion that protrudes from at least one of the front face or the back face of the diaphragm and extends in a spiral from the center of the diaphragm or a vicinity of the center toward an outer circumference of the diaphragm, the second protrusion extending in a direction opposite to a direction in which the first protrusion extends and intersecting with the first protrusion.

The present invention relates to an electronic device. A display device comprises: a display module, the display module comprising a display panel configured to display an image; a rear cover, the rear cover being located on a rear surface of the display module; and a sound generating module, the sound generating module being located at the rear cover and configured to vibrate the display module to generate sound, and the rear surface of the sound generating module is covered by the rear cover.

To provide a diaphragm for a speaker, with appropriate energy-loss beneficial to the quality of the generated speech.SOLUTION: A diaphragm 400a includes, from top to bottom, an upper surface region 410a, a central region 430a, and a lower surface region 450a. The upper surface region, the central region, and the lower surface region are all made of a homogeneous amorphous material, and the homogeneous amorphous material includes silicon dioxide. The diaphragm is a hard, homogeneous, amorphous material with a variable internal stress, and the stress varies with the depth from the surface to the center of the diaphragm. The thickness d1 of the upper surface region 410a is preferably about 0.01 to 20 micrometers, and similarly, the thickness d1 of the lower surface region 450a is preferably about 0.01 to 20 micrometers. The thickness d2 of the central region 430 is preferably about 0.02 to 49.9 micrometers.SELECTED DRAWING: Figure 1B

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.

The present invention relates to an electronic device. A display device comprises: a display module, the display module comprising a display panel configured to display an image; a rear cover, the rear cover being located on a rear surface of the display module; and a sound generating module, the sound generating module being located at the rear cover and configured to vibrate the display module to generate sound, and the rear surface of the sound generating module is covered by the rear cover.

Wireless-enabled loudspeaker includes a capacitive touch user interface. The loudspeaker may comprise at least one electroacoustic transducer, a processor in communication with the at least one electroacoustic transducer, and an exterior surface comprising a capacitive touch user interface that allows a user to control operation of the loudspeaker. The exterior surface acts a dielectric for the capacitive touch user interface. The loudspeaker may comprise a wireless transceiver circuit for receiving and transmitting wireless communication signals via a wireless network. The wireless transceiver circuit may receive wirelessly audio content from streaming audio content servers that are connected to the Internet. The capacitive touch user interface comprises a plurality of capacitive sense electrodes.

The present invention relates to an electronic device. A display device includes: a display module including a display panel configured to display an image; a rear cover located on a rear surface of the display module; and a sound generating module located at the rear cover and configured to vibrate the display module to generate sound, with the rear surface of the sound generating module being covered by the rear cover.

To provide a dust cap capable of extending the high-frequency reproduction range by dispersing the resonant frequency.SOLUTION: A dust cap 160 is a dust cap 160 that is placed at the center of a diaphragm 100 of an electroacoustic transducer. The first cross-sectional shape of the dust cap 160 by a first plane including a predetermined reference axis 300 along the vibration direction and the second cross-sectional shape of the dust cap 160 including reference axis 300 by a second plane crossing the first plane are different from each other.SELECTED DRAWING: Figure 4

The speaker diaphragm includes a substrate having a resin matrix containing a thermoplastic resin as a main component and fibers dispersed in the resin matrix. The fibers have a plurality of loss regions where the fibers are locally bent and broken, or a plurality of loss regions having a diameter 5% to 50% larger than the average diameter of the fibers.

[Problem] To provide an electro-acoustic transducer diaphragm which maintains a high Young's modulus and realizes moderate internal loss. [Solution] An electro-acoustic transducer diaphragm 1 includes a substrate 10 which is constituted of a fiber material based on cellulose, and which has formed therein a mixture layer 11 of a fiber material 20 and silk nanofibers 21.

A loudspeaker includes a voice coil assembly and a diaphragm connected to the voice coil assembly, wherein the voice coil assembly is configured to electromagnetically drive the diaphragm. The voice coil assembly includes a voice coil and a voice coil former upon which the voice coil is wound. The voice coil former is formed at least partially or completely from, or comprises at least a portion comprising, a material having a high permeability property.

A flat panel loudspeaker, according to the present invention, has a housing with a sound panel, opposing sides, and a back panel at least partially enclosing a hollow chamber therebetween. An exciter is rigidly attached to the sound panel within the chamber to selectively induce vibrations in the sound panel. The sound panel has a density of between 465 kg / m3 and 700 kg / m3.

The present invention discloses a diaphragm for a speaker including a lower surface area, a central area formed on said lower surface area, an upper surface area formed on said central area. The upper surface area, the central area and the lower surface area includes homogeneous amorphous materials. The diaphragm includes internal stress changing with a depth from the surface to the center of the diaphragm.

To provide a diaphragm capable of suppressing split resonance.SOLUTION: A diaphragm 100 is a diaphragm provided to an electroacoustic transducer. The diaphragm 100 extends spirally from the center of the diaphragm 100 or the vicinity to the outer periphery. The diaphragm 100 includes: a first projection 111 protruding from at least one of surface 101 and back surface 102 of diaphragm 100; and a second projection 112 that extends from the center of diaphragm 100 or its vicinity to the periphery in a spiral in the opposite direction to the first projection 111, and protrudes from at least one of the surface 101 and the back surface 102, intersecting with the first projection 111.SELECTED DRAWING: Figure 2

Embodiments relate to a diaphragm having high rigidity and high internal loss. The diaphragm may comprise: a matrix-shaped structure including a plurality of through-holes; and a graphene layer disposed in at least a part of the plurality of through-holes and coupled to the structure.

A diaphragm is injection-molded using cellulose composite pellets, the cellulose composite pellets comprise at least one of a transparent cellulose material, a resin material, a light diffuser, a dispersant, and a pigment, and the transparent cellulose material is in 30 wt % to 70 wt %.

A dust cap is a dust cap to be provided at a central portion of a diaphragm included in an electroacoustic transducer. A first cross-sectional shape of the dust cap in a first plane that includes a predetermined reference axis extending in a vibration direction of the diaphragm and a second cross-sectional shape of the dust cap in a second plane that includes the reference axis and is orthogonal to the first plane are different.

This speaker diaphragm comprises a base material having a resin matrix containing a thermoplastic resin as a main component and fibers dispersed in the resin matrix. The fibers have a plurality of loss regions in which the fibers are locally bent and broken, or a plurality of loss regions each having a diameter that is 5% to 50% larger than the average diameter of the fibers.

Loudspeaker comprising a voice coil assembly (1, 2) comprising a voice coil (1) and a voice coil former (2) on which the voice coil (1) is wound; and a diaphragm (12) connected to the voice coil assembly (1, 2), wherein the voice coil assembly (1, 2) is configured to electromagnetically drive the diaphragm (12), wherein the voice coil former (2) is at least partially or completely formed of, or comprising at least a part of, a material having a high permeability property.

The present disclosure relates to a vibration device and a sound device and a vehicle device including the same. A vibration device can include a vibration means and an adhesive member located at a surface of the vibration means. A modulus of the vibration means can be equal to a modulus of the adhesive member, or can be greater than the modulus of the adhesive member.

A display device (100) includes a display unit including a flat panel that displays an image, and an output unit that is arranged on a back surface of the flat panel and outputs sound by driving of a plurality of vibration exciters, which vibrates the flat panel, and two cone-shaped speakers. The vibration exciters includes two piezo elements for a high sound range output and one vibrating element for a middle sound range output. The two piezo elements are respectively arranged on left and right sides with the vibrating element as a center on the back surface of the flat panel, and are arranged above the vibrating element in a height direction.