Patents by Inventor Jiawei XU

Jiawei XU 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: 20180373367
    Abstract: A touch electrode structure and a touch display panel are provided. The touch electrode structure includes a plurality of first touch electrodes and a plurality of second touch electrodes. The plurality of first touch electrodes are extending along a first direction, each of the first touch electrodes has a shape of a polygon and includes a plurality of first edges, a range of an angle between an extension direction of each of the first edges and the first direction is 20 to 25 degrees; the plurality of second touch electrodes are extending along a second direction, each of the second touch electrodes has a shape of a polygon and includes a plurality of second edges, a range of an angle of an extension direction of each of the second edges and the second direction is 20 to 25 degrees.
    Type: Application
    Filed: June 20, 2017
    Publication date: December 27, 2018
    Applicants: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd .
    Inventors: Zhun Wang, Jun Xu, Lei Zhang, Jiawei Xu
  • Publication number: 20180300007
    Abstract: A display device includes a substrate. The substrate includes a substratum. The substratum includes a main touch control area which includes a plurality of first touch control electrodes and a plurality of second touch control electrodes that are insulated from each other and intersect with each other. A first dummy electrode is disposed between the adjacent first touch control electrodes, and is electrically connected to the first touch control electrodes which are adjacent to the first dummy electrode. A second dummy electrode is disposed between the adjacent second touch control electrodes, and is electrically connected to the second touch control electrodes which are adjacent to the second dummy electrode. The material of the first dummy electrode and the second dummy electrode is photosensitive resistive material that is sensitive to light of a specific wavelength band, and both the first dummy electrode and the second dummy electrode are transparent.
    Type: Application
    Filed: November 22, 2017
    Publication date: October 18, 2018
    Inventors: Jiawei XU, Lei Zhang, Tsung Chieh Kuo, Baoran Li, Qingpu Wang
  • Publication number: 20180253174
    Abstract: The present application discloses a touch substrate including a base substrate; a transparent touch electrode layer on the base substrate; and an anti-reflective layer on a side of the transparent touch electrode layer distal to the base substrate. The anti-reflective layer includes a first sub-layer on a side of the transparent touch electrode layer distal to the base substrate; a second sub-layer on a side of the first sub-layer distal to the transparent touch electrode layer; and a third sub-layer on a side of the second sub-layer distal to the first sub-layer. The first sub-layer, the second sub-layer, and the third sub-layer are laminated together. The second sub-layer has a refractive index greater than those of the first sub-layer and the third sub-layer.
    Type: Application
    Filed: March 28, 2017
    Publication date: September 6, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiawei Xu, Lei Zhang, Tsung Chieh Kuo, Wenjin Fan, Chaoke Zhang
  • Publication number: 20180232076
    Abstract: A touch display device and a method for forming the same are provided. The touch display device includes a touch panel and a display panel arranged opposite to the touch panel to form a cell, where a deformable layer is arranged between the touch panel and the display panel and configured to be deformed in response to a pressure applied to the touch panel; a plurality of first electrodes is arranged at a side of the touch panel adjacent to the display panel; a plurality of second electrodes is arranged at a side of the display panel adjacent to the touch panel; the first electrodes and the second electrodes are arranged in a one-to-one correspondence manner, and each second electrode and the corresponding first electrode form a pressure sensing capacitor; where the touch display device further includes a pressure sensing module configured to detect a capacitance change of the pressure sensing capacitor and determine a value of the pressure applied to the touch panel based on the capacitance change.
    Type: Application
    Filed: May 18, 2017
    Publication date: August 16, 2018
    Inventors: Jiawei Xu, Baoran Li, Bisheng Li, Lei Zhang, Tsungchieh Kuo
  • Publication number: 20180210256
    Abstract: Embodiments of the present invention disclose a touch sensor, a method of manufacturing the touch sensor, and a touch screen and an electronic product which include the touch sensor. The touch sensor includes: a substrate; a blocking pattern formed on the substrate; and a metal bridge. The blocking pattern is formed in a region corresponding to the metal bridge on the substrate and is configured to block the metal bridge.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 26, 2018
    Inventors: Jiawei XU, Lei ZHANG, Tsung-Chieh KUO, Ming HU
  • Publication number: 20180055409
    Abstract: According to an aspect of the present inventive concept there is provided a reconfigurable sensor circuit comprising: an input stage including a first input terminal and a second input terminal, and an amplification stage including: a first amplifier having a non-inverting input, an inverting input and an output connected to the inverting input of the first amplifier via a first resistor, a second amplifier having a non-inverting input, an inverting input and an output connected to the inverting input of the second amplifier via a second resistor, and first switching circuitry adapted to be arranged in a first state, wherein the amplification stage is in a differential amplifier configuration, and in a second state, wherein the amplification stage is in a transimpedance amplifier configuration, wherein, in the differential amplifier configuration, the first amplifier and the second amplifier are together configured as a differential amplifier connected to the first and the second input terminals, and wh
    Type: Application
    Filed: August 29, 2017
    Publication date: March 1, 2018
    Inventor: Jiawei XU
  • Publication number: 20180024394
    Abstract: The present disclosure provides a touch screen and a method for manufacturing the touch screen as well as a display device. The touch screen comprises a substrate, a conductive film layer and an insulating layer which are sequentially stacked, wherein the insulating layer is provided, on its surface away from the substrate, with protruding structures that are configured to increase the area of the surface of the insulating layer.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 25, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiawei XU, Gaoliang SHI, Lei ZHANG, Tsungchieh KUO, Ming HU
  • Publication number: 20180018056
    Abstract: A pressure-sensitive touch panel, a method for manufacturing the pressure-sensitive touch panel, and a touch display screen are provided. The pressure-sensitive touch panel includes a substrate and a touch sensor and a pressure sensor arranged on the substrate. The touch sensor includes a first electrode and a second electrode, and the pressure sensor includes an upper electrode, a lower electrode and a dielectric layer arranged between the upper electrode and the lower electrode. The upper electrode and the first electrode are arranged in the same layer and formed of the same material, the lower electrode and the second electrode are arranged in the same layer and formed of the same material, and the dielectric layer is formed of an elastic insulation material.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 18, 2018
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Jiawei XU, Qingpu WANG, Youlu LI
  • Patent number: 9681844
    Abstract: A biopotential signal acquisition system, comprising: a first active electrode including an integrated pre-amplifier and an analogue to digital converter; a second active electrode including an integrated pre-amplifier and an analogue to digital converter, wherein the second active electrode has variable gain; a test signal generator for generating a test signal at a test frequency and coupling the test signal to the first and/or second active electrodes; and a digital signal processor configured to: process the digital outputs of the first and second active electrodes to derive a gain control signal based on a difference between the first and second active electrode outputs at the test frequency, and apply the gain control signal to the second active electrode. The disclosure also relates to an electronic circuit or device and a biopotential signal acquisition method.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: June 20, 2017
    Assignees: IMEC VZW, Stichting IMEC Nederland
    Inventors: Jiawei Xu, Refet Firat Yazicioglu
  • Publication number: 20170071552
    Abstract: The present disclosure is directed to an impedance spectroscopy system for bio-impedance measurement. The impedance spectroscopy system includes a signal generator configured to generate a signal with a broadband frequency spectrum and to generate an analog injection current from the signal with the broadband frequency spectrum. The analog injection current has a high pass frequency characteristic. The impedance spectroscopy system also includes an amplifier configured to measure a voltage signal in response to the analog injection current and to simultaneously measure a biopotential signal. Further, the impedance spectroscopy system includes a processor configured to analyze the voltage signal to derive a bio-impedance spectrum as well to derive further information from the biopotential signal.
    Type: Application
    Filed: August 25, 2016
    Publication date: March 16, 2017
    Applicant: Stichting IMEC Nederland
    Inventors: Pieter Harpe, Jiawei Xu
  • Patent number: 8937509
    Abstract: A multi-channel biopotential signal acquisition system is disclosed. In the system, a plurality of biopotential channels is corrected for common-mode interference. In one aspect, each biopotential channel includes an electrode for providing a biopotential input signal and an associated amplifier for amplifying the biopotential input signal and providing a biopotential output signal. The output signal is processed in a processor. Each biopotential output signal is passed to a common-mode feedback system, which determines an average common-mode signal and feeds that signal back to each of the amplifiers in each of the biopotential channels to enhance common-mode rejection ratio of the system.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: January 20, 2015
    Assignees: IMEC, Stichting IMEC Nederland
    Inventors: Jiawei Xu, Refet Firat Yazicioglu
  • Publication number: 20150005585
    Abstract: A biopotential signal acquisition system, comprising: a first active electrode including an integrated pre-amplifier and an analogue to digital converter; a second active electrode including an integrated pre-amplifier and an analogue to digital converter, wherein the second active electrode has variable gain; a test signal generator for generating a test signal at a test frequency and coupling the test signal to the first and/or second active electrodes; and a digital signal processor configured to: process the digital outputs of the first and second active electrodes to derive a gain control signal based on a difference between the first and second active electrode outputs at the test frequency, and apply the gain control signal to the second active electrode. The disclosure also relates to an electronic circuit or device and a biopotential signal acquisition method.
    Type: Application
    Filed: June 26, 2014
    Publication date: January 1, 2015
    Applicants: IMEC VZW, Stichting IMEC Nederland
    Inventors: Jiawei Xu, Refet Firat Yazicioglu
  • Publication number: 20120095361
    Abstract: A multi-channel biopotential signal acquisition system is disclosed. In the system, a plurality of biopotential channels is corrected for common-mode interference. In one aspect, each biopotential channel includes an electrode for providing a biopotential input signal and an associated amplifier for amplifying the biopotential input signal and providing a biopotential output signal. The output signal is processed in a processor. Each biopotential output signal is passed to a common-mode feedback system, which determines an average common-mode signal and feeds that signal back to each of the amplifiers in each of the biopotential channels to enhance common-mode rejection ratio of the system.
    Type: Application
    Filed: September 7, 2011
    Publication date: April 19, 2012
    Applicants: Stichting IMEC Nederland, IMEC
    Inventors: Jiawei XU, Refet Firat Yazicioglu