公开(公告)号：US20210176567A1

公开(公告)日：2021-06-10

申请号：US17180560

申请日：2021-02-19

申请人： LG Display Co., Ltd.

发明人： YongWoo LEE ,  Yong-Su HAM ,  Taeheon Kim ,  Sung-Eui SHIN

IPC分类号： H04R17/00 ,  H01L41/08 ,  H01L41/09 ,  H01L41/083 ,  H01L41/047 ,  H01L41/37

摘要： A flexible vibration module is disclosed. The flexible vibration module includes a piezoelectric composite layer, including: a plurality of piezoelectric portions each having a piezoelectric characteristic, where at least two of the plurality of piezoelectric portions have different sizes; and a flexible portion between the plurality of piezoelectric portions.

公开(公告)号：US20210167273A1

公开(公告)日：2021-06-03

申请号：US16701048

申请日：2019-12-02

申请人： GE Precision Healthcare LLC

发明人： Edouard Dacruz ,  Flavien Daloz ,  Jason Barrett

IPC分类号： H01L41/083 ,  H01L41/338 ,  H01L27/20 ,  A61B8/00

摘要： Various methods and systems are provided for a multi-frequency transducer array. In one example, the transducer array may be fabricated via a wafer scale approach, where a first comb structure, with a first type of element, is formed by dicing a first acoustic stack and a second comb structure, with a second type of element, is formed by dicing a second acoustic stack. Combining the first and second comb structures may form a multi-frequency transducer array.

公开(公告)号：US20210146401A1

公开(公告)日：2021-05-20

申请号：US16612281

申请日：2018-05-02

申请人： Sony Corporation

发明人： Akihiro NAKATA ,  Satoshi NAKAMARU ,  Yoshio GOTO ,  Hiroichi ISHIKAWA ,  Kentarou SAKAI ,  Kazuhito WAKANA

IPC分类号： B06B1/06 ,  H01L41/047 ,  H01L41/053 ,  H01L41/08 ,  H01L41/083 ,  H01L41/09 ,  H01L41/193 ,  G08B6/00

摘要： An actuator includes a laminate including an elastomer layer and an electrode, in which the laminate has a spiral or concentric shape, pre-distortion is applied to at least one member out of the elastomer layer and the electrode, and area distortion of the at least one member is 10% or larger.

公开(公告)号：US20210143321A1

公开(公告)日：2021-05-13

申请号：US17094685

申请日：2020-11-10

申请人： Zhejiang A&F University

发明人： Xiaoping Shen ,  Qingfeng Sun ,  Kangchen Nie ,  Li Zheng

IPC分类号： H01L41/45 ,  B27N3/18 ,  B27N3/02 ,  B27K3/02 ,  B27K3/15 ,  B27K3/16 ,  H01L41/047 ,  H01L41/08 ,  H01L41/083 ,  H01L41/113 ,  H01L41/18

摘要： The present disclosure provides a method for preparing a piezoresistive sensor material, including: preparing a wood fiber aerogel; conducting dopamine self-polymerization on the surface of the aerogel to obtain a wood fiber-based hydrogel; soaking the wood fiber-based hydrogel in a nano conductive phase suspension or a nano conductive phase precursor to form a conductive phase-loaded wood fiber-based hydrogel; subjecting the conductive phase-loaded wood fiber-based hydrogel to reaction with an aqueous solution including a polyelectrolyte monomer, a crosslinker, an initiator and a catalyst to form a conductive phase-wood fiber-based hydrogel composite; and complexing the composite with metal ions. The present disclosure further discloses a piezoresistive sensor including the sensor material, and a preparation method thereof. The sensor material prepared by the method of the present disclosure has excellent mechanical strength and ionic conductivity, and a sensor further prepared has extremely-high sensitivity.

公开(公告)号：US11004822B2

公开(公告)日：2021-05-11

申请号：US16327340

申请日：2017-08-23

申请人： SHINKAWA LTD.

发明人： Yohei Uchida ,  Naoya Taira

IPC分类号： B23K20/00 ,  H01L23/00 ,  H01R4/28 ,  H01L41/09 ,  H01L41/083

摘要： This wire clamp apparatus calibration method comprises: a step for driving a driving piezoelectric element by applying a predetermined frequency that causes a pair of arm portions to vibrate in an opening/closing direction; a step for detecting whether or not end portions of the pair of arm portions collide with each other on the basis of an output current outputted from the driving piezoelectric element when the pair of arm portions are vibrating in the opening/closing direction; a step for calculating, on the basis of the detection result, reference voltages in a state where the pair of arm portions are closed; and a step for performing calibration of a drive voltage to be applied to the driving piezoelectric element on the basis of the reference voltages. Accordingly, accuracy improvement and stabilization in an opening/closing operation of the wire clamp apparatus can be achieved.

公开(公告)号：US20210057634A1

公开(公告)日：2021-02-25

申请号：US16907400

申请日：2020-06-22

申请人： Murata Manufacturing Co., Ltd.

发明人： Yutaka KISHIMOTO ,  Shinsuke IKEUCHI ,  Masayuki SUZUKI ,  Fumiya KUROKAWA

IPC分类号： H01L41/083 ,  H01L41/18 ,  H01L41/047

摘要： In a piezoelectric device, electrode layers are spaced apart from each other in the direction of the normal thereto. A first piezoelectric layer is interposed between two electrode layers of electrode layers in the direction of the normal. A second piezoelectric layer is provided on an opposite side of the first piezoelectric layer from a base portion. The second piezoelectric layer is interposed between two electrode layers of the electrode layers in the direction of the normal. The half-width of a rocking curve measured by X-ray diffraction for a lattice plane of the first piezoelectric layer substantially parallel to a first main surface is smaller than a half-width for the second piezoelectric layer. The piezoelectric constant of a material defining the first piezoelectric layer is smaller than the piezoelectric constant of a material defining the second piezoelectric layer.

公开(公告)号：US10916265B2

公开(公告)日：2021-02-09

申请号：US16911249

申请日：2020-06-24

申请人： Magnecomp Corporation

发明人： Long Zhang ,  Kuen Chee Ee ,  David Glaess ,  Preecha Sudachun ,  Ekaratch Pankaew

IPC分类号： G11B5/48 ,  H01L41/047 ,  H01L41/09 ,  H01L41/083

摘要： A piezoelectric actuator assembly is described. The piezoelectric actuator assembly includes a first, second and third active piezoelectric layers. The first layer includes a top surface and a bottom surface. The second layer includes a top surface and a bottom surface over the top surface of the first layer. The third layer includes a top surface and a bottom surface over the top surface of the second layer. The first and second layers can define a first effective electrode length. Similarly, the second and third layers can define a second effective electrode length configured to be longer than the first effective electrode length.

公开(公告)号：US10908715B2

公开(公告)日：2021-02-02

申请号：US15544508

申请日：2017-02-16

申请人： BOE TECHNOLOGY GROUP CO., LTD. ,  BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.

发明人： Liyan Xu ,  Junwei Wang

IPC分类号： G06F3/041 ,  G02F1/1333 ,  G02F1/1368 ,  G06F3/047 ,  G02F1/1362 ,  H01L41/083 ,  H01L41/311 ,  H01L41/113 ,  H01L41/27

摘要： The disclosure provides an array substrate and a method of manufacturing the same, a display device and a method of detecting a touch position. In the array substrate, the plurality of X and Y sensing lines are respectively parallel to gate data lines, and a sensing thin film transistor is provided at a crossing position where the X and Y sensing lines cross. A control terminal and an output terminal of the sensing thin film transistor are coupled to the X and Y sensing lines, respectively. A piezoelectric material layer is formed between the control terminal and an input terminal of the sensing thin film transistor such that, when being pressed, the piezoelectric material layer generates deformation such that a sensing voltage is generated at the input terminal of the sensing thin film transistor with relative to the control terminal of the sensing thin film transistor.

公开(公告)号：US20210028763A1

公开(公告)日：2021-01-28

申请号：US17038519

申请日：2020-09-30

申请人： Murata Manufacturing Co., Ltd.

发明人： Ryota Kawai ,  Toshio Nishimura

IPC分类号： H03H9/24 ,  H01L41/083 ,  H01L41/047 ,  H01L41/09

摘要： A resonator includes a vibration portion that has a substrate having a main surface, a lower electrode on the main surface of the substrate, a piezoelectric film on the lower electrode, and an upper electrode on the piezoelectric film. A frame surrounds at least part of the vibration portion. Opening grooves having different widths in a first direction in a plan view of the main surface are provided in a periphery of the vibration portion. In a plan view of the main surface, the upper electrode is provided so as to be spaced from an outer edge of the substrate by a gap which is along the first direction, such that a length of the gap in a region where a width of the opening groove is large is larger than a length of the gap in a region where a width of the opening groove is small.

公开(公告)号：US20210019018A1

公开(公告)日：2021-01-21

申请号：US16642804

申请日：2019-09-12

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Yuzhen GUO ,  Yingming LIU ,  Haisheng WANG ,  Peixiao LI ,  Chenyang ZHANG ,  Xiufeng LI ,  Lijun ZHAO ,  Yanling HAN

IPC分类号： G06F3/043 ,  H01L41/113 ,  H01L41/04 ,  H01L41/047 ,  H01L41/083 ,  H01L41/27 ,  G06K9/00

摘要： The present disclosure provides a fingerprint recognition module, a driving method thereof, a manufacturing method thereof, and a display device. The fingerprint recognition module includes a receiving electrode layer, a piezoelectric material layer, and a driving electrode layer. The receiving electrode layer includes a plurality of receiving electrodes arranged in an array along a first direction and a second direction. The piezoelectric material layer is disposed on a side of the receiving electrode layer. The driving electrode layer is disposed on a side of the piezoelectric material layer remote from the receiving electrode layer and includes a plurality of driving electrodes arranged along the second direction. Each driving electrode is a strip electrode extending along the first direction, and overlaps with multiple receiving electrodes arranged along the first direction.