Patents by Inventor Xiufeng Li

Xiufeng Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210331204
    Abstract: A piezoelectric sensor assembly, a manufacturing method thereof, a display panel and an electronic device including the same are provided. The piezoelectric sensor assembly includes: a base substrate; a plurality of ultrasonic transducers, wherein a spacing area is provided between two adjacent ultrasonic transducers; and an acoustic matching layer, wherein the acoustic matching layer includes a plurality of acoustic matching areas, and an orthographic projection of at least one acoustic matching area on the base substrate falls into an orthographic projection of the ultrasonic transducer corresponding to the acoustic matching area on the base substrate, wherein an isolation cavity is provided between two adjacent acoustic matching areas.
    Type: Application
    Filed: May 25, 2020
    Publication date: October 28, 2021
    Inventors: Chenyang ZHANG, Yingming LIU, Haisheng WANG, Peixiao LI, Xiufeng LI, Yuzhen GUO, Yanling HAN, Lijun ZHAO
  • Patent number: 11149933
    Abstract: An electrical connector and luminaire assembly are provided. The electrical connector includes a base including a bottom wall and two side walls, the two side walls being on both sides of the bottom wall, and the bottom wall and the two side walls defining a receiving channel; a first printed circuit board fixed on the base, the first printed circuit board and the receiving channel being respectively located at two sides of the bottom wall; and a plurality of first conductive terminals electrically connected to the first printed circuit board and extending through the bottom wall of the base into the receiving channel.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 19, 2021
    Assignees: Suzhou Opple Lighting Co., Ltd., Opple Lighting Co., Ltd.
    Inventors: Xiufeng Shi, Jianguo Li
  • Patent number: 11141183
    Abstract: A waveguide rod for an ultrasonic scalpel having a relatively desirable amplitude and frequency comprises a proximal gain structure, a distal gain structure, an intermediate structure, and a frequency adjustment structure. The proximal gain structure and the intermediate structure are connected in a position near an antinode of longitudinal vibration of the waveguide rod through a proximal side gain step. The distal gain structure and the intermediate structure are connected in a position near an antinode of the longitudinal vibration of the waveguide rod through a distal side gain step. The intermediate structure comprises N (N>0, and N is an integer) gain holding structures that are connected two by two in a position near an antinode of the longitudinal vibration of the waveguide rod through an intermediate gain step. X (X>0, and X is an integer) frequency adjustment structures exist on the gain holding structure.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: October 12, 2021
    Assignees: YISI (SUZHOU) MEDICAL TECHNOLOGY CO., LTD., EZISURG MEDICAL CO., LTD.
    Inventors: Zhidong Li, Ruixuan Liu, Yu Zhang, Honglin Nie, Xiufeng Shi
  • Publication number: 20210305487
    Abstract: A piezoelectric sensor and a manufacturing method thereof, a method for recognizing a fingerprint, and an electronic device are disclosed. The piezoelectric sensor includes a first electrode layer and a second electrode layer which are opposite to each other and a piezoelectric layer. The piezoelectric layer is between the first electrode layer and the second electrode layer and includes a plurality of piezoelectric units arranged at intervals and an insulation layer between adjacent piezoelectric units of the plurality of piezoelectric units. The first electrode layer includes a plurality of sub-electrodes corresponding to the plurality of piezoelectric units, or the second electrode layer includes a plurality of sub-electrodes corresponding to the plurality of piezoelectric units; or both the first electrode layer and the second electrode layer include a plurality of sub-electrodes corresponding to the plurality of piezoelectric units.
    Type: Application
    Filed: May 29, 2020
    Publication date: September 30, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiufeng LI, Yingming LIU, Yuzhen GUO, Chenyang ZHANG
  • Patent number: 11134334
    Abstract: A sounding device, a manufacturing method thereof and a display device are provided. The sounding device includes at least two sounding units. Each of the sounding units includes: a transparent structural layer, including a recess and a supporting member located around the recess; and a piezoelectric vibrating film covering the recess, a cavity is formed by the piezoelectric vibrating film and the supporting member. The piezoelectric vibrating film includes a base film covering the recess; and at least one piezoelectric structure located on a side of the cavity away from the transparent structural layer. Each of the at least one piezoelectric structure includes: a first electrode; a piezoelectric material layer located on a side of the first electrode away from the cavity; and a second electrode located on a side of the piezoelectric material layer away from the first electrode.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: September 28, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanling Han, Xue Dong, Haisheng Wang, Yingming Liu, Lijun Zhao, Chenyang Zhang, Peixiao Li, Yuzhen Guo, Xiufeng Li
  • Publication number: 20210295004
    Abstract: Embodiments of the present disclosure provide an ultrasonic fingerprint identification circuit, a driving method thereof, and a fingerprint identification device. The circuit includes a transmitting electrode, a receiving electrode, a piezoelectric layer disposed between the transmitting electrode and the receiving electrode, and a signal output unit, the transmitting electrode is configured to receive an alternating current signal in a transmitting stage; the receiving electrode is connected with the signal output unit. The circuit further includes a photosensitive unit, with an anode connected with the receiving electrode and a cathode connected with a first fixed electric level so that the photosensitive unit is in a reverse bias state.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 23, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming LIU, Xiaochuan CHEN, Haisheng WANG, Xiaoliang DING, Lei WANG, Changfeng LI, Xiufeng LI, Chenyang ZHANG
  • Patent number: 11120243
    Abstract: A fingerprint identification module, a manufacturing method thereof, a driving method thereof, and a display device are disclosed. The fingerprint identification module includes: a plurality of ultrasonic wave receiving sensors, configured to receive an ultrasonic wave; and at least one ultrasonic wave emission sensor, configured to emit an ultrasonic wave, each of the plurality of ultrasonic wave receiving sensors includes a first piezoelectric material layer, each of the at least one ultrasonic wave emission sensor includes a second piezoelectric material layer, and a material of the first piezoelectric material layer is different from a material of the second piezoelectric material layer.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 14, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yingming Liu, Haisheng Wang, Xiaoliang Ding, Pengpeng Wang, Xiufeng Li, Chenyang Zhang, Peixiao Li
  • Publication number: 20210260620
    Abstract: The present disclosure provides an ultrasonic sensor, a method for driving the same, and a method for manufacturing the same. The ultrasonic sensor includes a back plate, a sounding structure on the back plate and a backing layer on a side of the sounding structure distal to the back plate; the sounding structure includes a plurality of emitting electrodes, an opposite electrode, a piezoelectric layer and a plurality of signal leads, and the plurality of emitting electrodes and the opposite electrode are respectively arranged on two sides of the piezoelectric layer; and the plurality of emitting electrodes are arranged in an array, and each of the emitting electrodes is individually coupled to one of the signal leads. The ultrasonic sensor may achieve an independent control for each patterned electrode such that the ultrasonic sensor may be used as a point sound source.
    Type: Application
    Filed: February 25, 2021
    Publication date: August 26, 2021
    Inventors: Yuzhen GUO, Yingming LIU, Haisheng WANG, Xiufeng LI, Lijun ZHAO, Peixiao LI, Yaqian JI, Chenyang ZHANG
  • Publication number: 20210209334
    Abstract: A fingerprint identification module and a driving method thereof and an electronic device are provided. In the fingerprint identification module, a receiving electrode layer includes a plurality of receiving electrodes; a first driving electrode layer is arranged at a side of a piezoelectric material layer away from the receiving electrode layer and includes a plurality of first driving electrodes; a second driving electrode layer is arranged at a side of the receiving electrode layer away from the piezoelectric material layer and includes a plurality of second driving electrodes; the plurality of first driving electrodes and the plurality of second driving electrodes form a plurality of driving electrode pairs, and in each driving electrode pair, an orthographic projection of the first driving electrode on the piezoelectric material layer is at least partially overlapped with an orthographic projection of the second driving electrode on the piezoelectric material layer.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 8, 2021
    Applicant: BOE Technology Group Co., Ltd.
    Inventors: Yingming Liu, Xiaoliang Ding, Xiufeng Li, Pengpeng Wang
  • Publication number: 20210200985
    Abstract: A fingerprint identification module, a manufacturing method thereof and an electronic device are disclosed.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 1, 2021
    Inventors: Wenqu LIU, Xiufeng LI, Qi YAO, Feng ZHANG, Liwen DONG, Zhao CUI, Chuanxiang XU, Detian MENG, Xiaoxin SONG, Libo WANG, Yang YUE, Dongfei HOU, Zhijun LV
  • Publication number: 20210192167
    Abstract: An ultrasonic fingerprint recognition module is described that includes sensing units distributed in the form of array, where the sensing units include: a receiving electrode layer having a plurality of receiving electrodes distributed in the form of array; a piezoelectric material layer disposed on one side of the receiving electrode layer; an emission electrode layer disposed on a side of the piezoelectric material layer distal to the receiving electrode layer, and including a plurality of rows of emission electrodes; a selection circuit having an input terminal which is connected with an excitation signal and an output terminal which is connected with the emission electrode for selecting to transmit the excitation signal to the plurality of emission electrodes; and a pixel receiving circuit connected to the receiving electrode layer that receives a fingerprint signal.
    Type: Application
    Filed: June 29, 2020
    Publication date: June 24, 2021
    Inventors: Xiufeng LI, Haisheng WANG, Xiaoliang DING, Pengpeng WANG, Yuzhen GUO, Lijun ZHAO, Chenyang ZHANG, Yaqian JI, Yanling HAN, Peixiao LI
  • Publication number: 20210165524
    Abstract: An ultrasonic induction circuit is provided, a first electrode of an ultrasonic sensor is electrically connected with a first terminal of the ultrasonic sensing circuit, a second electrode is electrically connected with a second terminal of a first potential supply sub-circuit, and the first terminal of the first potential supply sub-circuit is electrically connected with a first potential supply end. A gate of M1 is electrically connected with the second electrode and the second terminal of the compensation sub-circuit. The second electrode is electrically connected with the first terminal of the compensation sub-circuit. The first electrode is coupled to the second potential supply end. The first terminal of the signal output sub-circuit is electrically connected to the second electrode of the first transistor, and the second terminal is electrically connected to the second terminal of the ultrasonic induction circuit.
    Type: Application
    Filed: July 2, 2020
    Publication date: June 3, 2021
    Inventors: Yingming LIU, Haisheng WANG, Xiaoliang DING, Lei WANG, Pengpeng WANG, Changfeng LI, Xiufeng LI, Chenyang ZHANG, Tianqi WANG
  • Publication number: 20210156977
    Abstract: An ultrasonic sensing module, an ultrasonic sensing device and a control method thereof, and a display device. The ultrasonic sensing module includes a first electrode layer, a piezoelectric layer, a receiving electrode layer and an emission electrode layer. The first electrode layer is on a first side of the piezoelectric layer; the receiving electrode layer and the emission electrode layer insulated from the receiving electrode layer are on a second side of the piezoelectric layer; and the second side is opposite to the first side.
    Type: Application
    Filed: March 27, 2020
    Publication date: May 27, 2021
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiufeng LI, Yingming LIU, Haisheng WANG, Xiaoliang DING, Pengpeng WANG, Yuzhen GUO, Lijun ZHAO, Chenyang ZHANG, Yaqian JI, Yanling HAN, Peixiao LI
  • Publication number: 20210149510
    Abstract: A detection panel, a display apparatus, a method for driving the detection panel, and a method for manufacturing the detection panel are provided. The detection panel includes an upper electrode layer, a piezoelectric material layer and a conductive backing layer which are sequentially stacked. The piezoelectric material layer is configured to change an electric field between the upper electrode layer and the conductive backing layer under an ultrasonic wave, and generate an ultrasonic wave under an electric field. The conductive backing layer includes a plurality of noise elimination members, and each of the noise elimination members has a dimension in a direction parallel to the detection panel that gradually decreases in a direction distal to the piezoelectric material layer.
    Type: Application
    Filed: June 10, 2020
    Publication date: May 20, 2021
    Inventors: Chenyang ZHANG, Haisheng WANG, Yingming LIU, Xiufeng LI, Yanling HAN, Yuzhen GUO, Lijun ZHAO, Peixiao LI
  • Publication number: 20210081634
    Abstract: A fingerprint recognition module and a driving method thereof, and a display device. The fingerprint recognition module includes a substrate, an electrode layer located on one side of the substrate, a piezoelectric film layer located on one side, away from the substrate, of the electrode layer, and a reference electrode layer located on one side, away from the electrode layer, of the piezoelectric film layer, wherein the electrode layer includes a plurality of receiving electrodes arranged in an array and a plurality of transmitting electrodes, and the receiving electrodes and the transmitting electrodes are insulated from each other and are spaced with each other.
    Type: Application
    Filed: March 30, 2020
    Publication date: March 18, 2021
    Inventors: Yingming Liu, Haisheng Wang, Xiaoliang Ding, Pengpeng Wang, Xiufeng Li, Yuzhen Guo, Ruituo Wang
  • Publication number: 20210019018
    Abstract: 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.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 21, 2021
    Inventors: Yuzhen GUO, Yingming LIU, Haisheng WANG, Peixiao LI, Chenyang ZHANG, Xiufeng LI, Lijun ZHAO, Yanling HAN
  • Publication number: 20200372231
    Abstract: A fingerprint identification module, a manufacturing method and driving method thereof, and a display device. The fingerprint identification module includes: a driving backplate, including a substrate, identification circuits on the substrate, the identification circuits having a first electrode pad, a second electrode pad; acoustic units including: a first electrode; a piezoelectric film layer positioned on the side, close to the driving backplate, of the first electrode; a second electrode positioned on the side, close to the driving backplate, of the piezoelectric film layer; a first lead-out terminal electrically connected with the first electrode; a second lead-out terminal electrically connected with the second electrode; cavities being in one-to-one correspondence to the acoustic units, the cavities positioned between the second electrodes and the substrate, and one side face, away from the substrate, of cavity being defined by at least one side face, close to the substrate, of the second electrode.
    Type: Application
    Filed: September 17, 2019
    Publication date: November 26, 2020
    Inventors: Yingming LIU, Haisheng WANG, Xiaoliang DING, Xiufeng LI, Pengpeng WANG, Chenyang ZHANG, Yaqian JI, Peixiao LI, Jing LIU, Ruituo WANG, Lei CHEN
  • Publication number: 20200341099
    Abstract: A method for generating a perfusion weighted image using arterial spin labeling (ASL) with segmented acquisitions includes dividing an anatomical area of interest into a plurality of slices and performing a multi-band (MB) echo planar imaging (EPI) acquisition process using a magnetic resonance imaging (MRI) system to acquire a control image dataset representative of the plurality of slices using a central-to-peripheral or peripheral-to-central slice acquisition order. An ASL preparation process is performed using the MRI system to magnetically label protons in arterial blood water in an area upstream from the anatomical area of interest. Following a post-labeling delay time period, the MB EPI acquisition process is performed to a labeled image dataset corresponding to the slices using the central-to-peripheral or peripheral-to-central slice acquisition order. A perfusion weighted image of the anatomical area is generated by subtracting the labeled image dataset from the control image dataset.
    Type: Application
    Filed: July 29, 2019
    Publication date: October 29, 2020
    Inventors: Xiufeng Li, Gregory J. Metzger, Essa Yacoub, Kamil Ugurbil, Dingxin Wang
  • Publication number: 20200293736
    Abstract: Disclosed are a fingerprint recognizing device and a display device. The fingerprint recognizing device includes a plurality of ultrasonic sensing elements, each of which includes a first electrode, a piezoelectric layer located on one side of the first electrode, and a second electrode located on the side of the piezoelectric layer away from the first electrode, wherein at least one of the first electrode and the second electrode includes a plurality of stacked sub-electrode layers, and two adjacent sub-electrode layers have different sonic impedances.
    Type: Application
    Filed: October 24, 2019
    Publication date: September 17, 2020
    Inventors: Yingming LIU, Xiaochuan CHEN, Haisheng WANG, Xiaoliang DING, Lei WANG, Lijun ZHAO, Xiufeng LI, Chenyang ZHANG
  • Patent number: D935922
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: November 16, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Shuming Li, Xiufeng Tan, Qin Li, Jian Gao, Jesper Overgaard Jensen