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WO/2022/190807A1 |
The present invention addresses the problem of providing a piezoelectric film that has good durability, is capable of outputting a sound with high sound pressure, and can also lower resistance in an electrode layer to suppress heat gener...
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WO/2022/191192A1 |
A piezoelectric element comprising a support (10) and a vibration portion (20) disposed on the support (10), the vibration portion (20) including a support region (21a) supported on the support (10) and a plurality of vibration regions (...
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WO/2022/190729A1 |
Provided is a multilayer piezoelectric element in which heat generation can be reduced while a good piezoelectric property is maintained. This multilayer piezoelectric element is a laminate of a plurality of piezoelectric films each havi...
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WO/2022/190804A1 |
The present invention addresses the problem of preventing, in a projection screen in which a piezoelectric acoustic film is adhered to the rear surface-side, audio output at the rear surface-side from wrapping around to the projection su...
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WO/2022/185744A1 |
An ultrasonic sensor (101) comprises: a case (1); a piezoelectric element (5) positioned on a bottom panel (2) in the interior of the case (1); a signal terminal; and a flexible substrate (7). The flexible substrate (7) is connected to t...
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WO/2022/186288A1 |
The purpose of the present invention is to provide an ultrasound supply device which can acquire information about the periphery of a ultrasound output unit. This ultrasound supply device 100 is provided with: a first reflective member w...
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WO/2022/185763A1 |
This ultrasonic sensor (1) comprises: a case (10) having a bottomed cylinder shape and including a bottom part (11) and a circumferential wall part (15) that extends from the bottom part (11) along an axial direction (Z) of a central axi...
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WO/2022/180161A1 |
A MEMS acoustic transducer array (10*) comprises at least two acoustic transducers (12, 13, 14), a first acoustic transducer (14) of the at least two acoustic transducers being designed to reproduce an amplitude characteristic of a first...
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WO/2022/176002A1 |
The present invention addresses the problem of providing an ultrasonic transducer for a measurement apparatus, whereby the frequency band suitable for the transmission and reception of ultrasonic waves can be widened. This ultrasonic tra...
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WO/2022/168826A1 |
This piezoelectric element comprises a support (10) and a vibrating portion (20) disposed on the support (10). The vibrating portion (20) includes a piezoelectric film (50) and an electrode film (60) connected to the piezoelectric film (...
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WO/2022/168188A1 |
This ultrasonic transducer comprises: a support board that has a plurality of recesses opened in a first surface and a plurality of waveguides opened in a second surface; a flexible resin film that is fixed to the support board; and a pl...
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WO/2022/152301A1 |
The present application relates to the technical field of laser projection and discloses a sound-production screen and a laser projection system. The sound-production screen comprises: a screen body and a frame body. Because through hole...
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WO/2022/149548A1 |
The present invention addresses the problem of providing a piezoelectric film comprising a piezoelectric layer with an electrode layer provided on both surfaces thereof, and a protective layer provided on a surface of each of the electro...
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WO/2022/141827A1 |
Disclosed in the present application is a bone conduction sound transmission device, comprising a laminated structure formed by a vibrating unit and an acoustic transducer unit; and a base structure configured to bear the laminated struc...
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WO/2022/143503A1 |
Disclosed in the embodiments of the present application are a loudspeaker and an electronic apparatus comprising same. The loudspeaker comprises a base, a plurality of piezoelectric patches, a plurality of transmission members and a diap...
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WO/2022/138175A1 |
A backing material for an ultrasonic probe according to the present invention comprises a carbonaceous matrix that has communicating holes distributed in said matrix, and a resin with which the communicating holes are filled.
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WO/2022/140423A2 |
An audio system comprises an array of transparent piezoelectric transducers on a transparent surface. Each transparent piezoelectric transducer includes one or more piezoelectric layers and one or more conductive layers that are substant...
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WO/2022/116288A1 |
The present application provides a piezoelectric microphone, comprising at least one piezoelectric assembly. The piezoelectric assembly comprises a substrate having a back cavity, a diaphragm, and a piezoelectric unit. The diaphragm is f...
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WO/2022/118575A1 |
A transducer (10A) is provided with: a substrate (20) that contains silicon; and a piezoelectric element (30) that is disposed on the substrate (20). The substrate (20) has: a film body (21) having a first surface (21a) and a second surf...
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WO/2022/120229A1 |
A low noise piezoelectric sensor, such as a piezoelectric acoustic transducer, includes a first conductive layer, a second conductive layer, and a piezoelectric layer between the first conductive layer and the second conductive layer. Th...
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WO/2022/116684A1 |
Embodiments of the present application relate to the technical field of screen sound generation. Disclosed are an exciter, a screen assembly, and a terminal. The exciter (11) comprises a vibration transfer assembly (111) and a sound gene...
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WO/2022/118106A1 |
Medical apparatus (20) includes an auscultation pickup unit (26) configured to sense acoustic waves emitted from a body of a subject (24) and to output signals in response thereto. Processing circuitry (40, 42, 44, 50) is configured to c...
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WO/2022/110416A1 |
Provided in the present application is a piezoelectric MEMS microphone, comprising at least one piezoelectric MEMS unit, the piezoelectric MEMS unit comprising a substrate, the substrate comprising an annular peripheral wall enclosing an...
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WO/2022/110358A1 |
Provided are a piezoelectric MEMS microphone and an array thereof. The microphone comprises a base having a back cavity, a support part arranged on the base, and a piezoelectric diaphragm fixed to the support part, wherein the piezoelect...
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WO/2022/110289A1 |
Provided are a piezoelectric microphone and a piezoelectric microphone apparatus. The piezoelectric microphone comprises: a base, which has an accommodating cavity; a cantilever beam, which is fixed to the base, wherein a piezoelectric l...
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WO/2022/110349A1 |
Provided is a piezoelectric microphone. The piezoelectric microphone comprises a base having a back cavity, and a piezoelectric cantilever beam vibrating diaphragm fixed above the base, wherein the piezoelectric cantilever beam vibrating...
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WO/2022/106804A1 |
The present disclosure relates to circuitry for driving a capacitive load. The circuitry comprises pre-processor circuitry configured to process an input signal to generate a processed signal; driver circuitry coupled to the pre-processo...
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WO/2022/099537A1 |
Disclosed in the present invention is a microelectromechanical system (MEMS) ultrasonic transducer-based miniature loudspeaker, comprising: a single or a plurality of MEMS ultrasonic transducers, configured to send an ultrasonic pulse or...
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WO/2022/103189A1 |
According to various embodiments, an electronic device may comprise: a sensor module; a flexible display; a piezoelectric speaker comprising N piezoelectric films attached to the flexible display; and a processor, wherein the processor i...
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WO/2022/104099A1 |
There is disclosed a transducer and a method for generating the transducer. The transducer is formed on a substrate layer. The transducer includes a first electrode layer, a first piezoelectric layer on the first electrode layer, and a s...
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WO/2022/097578A1 |
In the present invention, a plurality of vibration regions (22) are separated by a slit (41) between the vibration regions (22), the slit (41) being formed in a state in which a tapered part (42) is configured so as to have a width that ...
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WO/2022/080618A1 |
The present disclosure relates to a display device comprising a piezoelectric film-type actuator, and having a structure in which a groove is provided on a rear metal layer for supporting and sealing a rear surface of a display panel, an...
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WO/2022/075114A1 |
This laminate structure (10) comprises: a frame body (20) which has a first surface (20a) and a second surface (20b) which face the directions opposite to each other in the thickness direction thereof, and which has a film body (22) supp...
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WO/2022/075168A1 |
An output device according to an embodiment of the present technology comprises one or more display panels, a support member, and an actuator. The one or more display panels are capable of displaying an image. The support member has a su...
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WO/2022/071522A1 |
An ultrasonic wave generator as one example of the present disclosure comprises: an oscillator provided with a piezoelectric substance that, when an AC voltage is applied, vibrates due to piezoelectric effects and generates ultrasonic wa...
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WO/2022/070927A1 |
The present invention is an acoustic matching layer material that comprises a thermosetting resin component and inorganic filler particles, and satisfies the following formula (1) relating to the cross-sectional area of the inorganic fil...
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WO/2022/064953A1 |
The present invention addresses the problem of providing an electroacoustic converter and an image display device which can be rolled up and which do not need a mechanical mechanism or driving source. Said problem is solved by comprising...
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WO/2022/061991A1 |
Provided is a piezoelectric microphone. The piezoelectric microphone comprises a substrate having a back cavity and a piezoelectric vibrating diaphragm arranged on the substrate, and further comprises at least one fixing beam which is co...
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WO/2022/054475A1 |
This active noise control system (500) comprises a structure (80) and a plurality of piezoelectric speakers (10). The plurality of piezoelectric speakers (10) are disposed on a surface (80s) of the structure (80). A radiation surface of ...
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WO/2022/055610A1 |
The acoustic fiber transducer has a piezoelectric domain with Young's modulus, E piezo , and including a non-centrosymmetric crystalline -phase piezoelectric material and inorganic piezoelectric particles. At least one charge collector d...
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WO/2022/053165A1 |
A MEMS component comprises a substrate with a substrate plane, a mass element which has an inoperative position and is designed to execute a deflection out of the inoperative position parallel to the substrate plane and in a fluid which ...
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WO/2022/050130A1 |
The present invention comprises: a substrate (10) having a diaphragm part (11) formed thereon; and a piezoelectric film (20) disposed on the diaphragm part (11). The piezoelectric film (20) is formed of a scandium aluminium nitride, and ...
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WO/2022/050498A1 |
A device for transmitting authentication information is disclosed. The device for transmitting authentication information according to an embodiment of the present invention comprises: a housing in which a predetermined space is formed; ...
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WO/2022/049944A1 |
A first connection part (130a) connects a first tip part (122a) and a second tip part (122b) to each other. The first connection part (130a) is surrounded by: a dividing slit (142) which connects the center (122ac) of the first tip part ...
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WO/2022/044632A1 |
This sensor device comprises a conductive base substrate 11 that serves as a first electrode part kept at a reference potential, a membrane 15 that is provided so as to face the base substrate 11 and serves as a second electrode part tha...
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WO/2022/039596A1 |
A micro-electro mechanical systems, MEMS, -based microphone (1) for detecting sound signals. The MEMS-based microphone (1) comprises a body (2), a resonator (3) and a cavity provided in the body (2), the resonator (3) covering at least a...
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WO/2022/034663A1 |
This electronic device (1) comprises: a touch panel display (2); a loudspeaker (3); and a piezoelectric actuator (4). The loudspeaker (3) outputs a sound based on a first audio signal corresponding to a sound range equal to or higher tha...
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WO/2022/035659A1 |
A flexible thin film transistor tactile sensor includes a piezoelectric semiconductor thin film channel of material whose conductivity can be electrostatically controlled connected with source and drain metals and sandwiched between bott...
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WO/2022/030956A1 |
The present invention relates to a vibration module for a piezoelectric speaker and a panel speaker, and, more specifically, provides a vibration module for a piezoelectric speaker and a panel speaker, the vibration module comprising a d...
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WO/2022/022561A1 |
A piezoelectric type electroacoustic device (20), comprising a piezoelectric sheet (23), a transmission part (24), and a hard vibration plate (21). The piezoelectric sheet (23) and the hard vibration plate layer (21) are stacked and spac...
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