Patents by Inventor Wen-Je Lu

Wen-Je Lu 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).

  • Patent number: 11262863
    Abstract: A sensing component includes multiple piezoelectric pressure sensors. The piezoelectric pressure sensor includes a piezoelectric material layer, a thin film transistor array and an induced electrode. The piezoelectric material layer is configured to measure pulse at multiple positions to generate the corresponding multiple pulse signals. The thin film transistor array electrically coupled to the piezoelectric material layer includes multiple transistors. The transistor includes a first terminal, a second terminal and a control terminal. The first terminal is configured to receive one of the pulse signals. The second terminal coupled to a data line is configured to output a first sensing signal according to the one of the pulse signals. The control terminal is configured to receive a clock signal. The induced electrode coupled to the piezoelectric material layer is configured to receive another one of the pulse signals to output a second sensing signal.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: March 1, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wen-Je Lu, Yu-Jung Liu
  • Patent number: 10839188
    Abstract: A fingerprint sensing panel and a fingerprint sensor thereof are provided. The fingerprint sensor includes first to third switches, a first capacitor, an impedance variation element and a sensing circuit. The first switch receives a system high voltage and is controlled by a pre-charge signal. The first capacitor is coupled between the first switch and a reference voltage. The impedance variation element is coupled between the first switch and the reference voltage, and an impedance value of the impedance variation element is changed according to a vertical distance between the impedance variation element and a skin surface. The second switch receives the system high voltage. The third switch receives a read signal. The sensing circuit is coupled to the third switch and provides a fingerprint determination voltage.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 17, 2020
    Assignee: Au Optronics Corporation
    Inventors: Wen-Je Lu, Yu-Jung Liu
  • Patent number: 10592723
    Abstract: A fingerprint-sensing apparatus is provided. The fingerprint-sensing apparatus includes a fingerprint-sensing pixel array and a plurality of read-out circuits. The fingerprint-sensing pixel array has a plurality of fingerprint-sensing pixel columns, and each of the plurality of fingerprint sensing pixel columns includes a plurality of fingerprint-sensing pixels. Each of the plurality of fingerprint-sensing pixels includes a scanning switch and a thermosensitive current generation circuit. The scanning switch is controlled by a row scanning signal. The thermosensitive current generation circuit generates a thermosensitive current according to the fingerprint-sensing pixel corresponding to a fingerprint ridge or a fingerprint valley. The plurality of read-out circuits is respectively coupled to the plurality of fingerprint-sensing pixel columns.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 17, 2020
    Assignee: Au Optronics Corporation
    Inventors: Wen-Je Lu, Yu-Jung Liu
  • Publication number: 20200073505
    Abstract: A sensing component includes multiple piezoelectric pressure sensors. The piezoelectric pressure sensor includes a piezoelectric material layer, a thin film transistor array and an induced electrode. The piezoelectric material layer is configured to measure pulse at multiple positions to generate the corresponding multiple pulse signals. The thin film transistor array electrically coupled to the piezoelectric material layer includes multiple transistors. The transistor includes a first terminal, a second terminal and a control terminal. The first terminal is configured to receive one of the pulse signals. The second terminal coupled to a data line is configured to output a first sensing signal according to the one of the pulse signals. The control terminal is configured to receive a clock signal. The induced electrode coupled to the piezoelectric material layer is configured to receive another one of the pulse signals to output a second sensing signal.
    Type: Application
    Filed: July 17, 2019
    Publication date: March 5, 2020
    Inventors: Wen-Je LU, Yu-Jung LIU
  • Publication number: 20190311171
    Abstract: A fingerprint sensing panel and a fingerprint sensor thereof are provided. The fingerprint sensor includes first to third switches, a first capacitor, an impedance variation element and a sensing circuit. The first switch receives a system high voltage and is controlled by a pre-charge signal. The first capacitor is coupled between the first switch and a reference voltage. The impedance variation element is coupled between the first switch and the reference voltage, and an impedance value of the impedance variation element is changed according to a vertical distance between the impedance variation element and a skin surface. The second switch receives the system high voltage. The third switch receives a read signal. The sensing circuit is coupled to the third switch and provides a fingerprint determination voltage.
    Type: Application
    Filed: October 23, 2018
    Publication date: October 10, 2019
    Applicant: Au Optronics Corporation
    Inventors: Wen-Je Lu, Yu-Jung Liu
  • Publication number: 20190286872
    Abstract: A fingerprint-sensing apparatus is provided. The fingerprint-sensing apparatus includes a fingerprint-sensing pixel array and a plurality of read-out circuits. The fingerprint-sensing pixel array has a plurality of fingerprint-sensing pixel columns, and each of the plurality of fingerprint sensing pixel columns includes a plurality of fingerprint-sensing pixels. Each of the plurality of fingerprint-sensing pixels includes a scanning switch and a thermosensitive current generation circuit. The scanning switch is controlled by a row scanning signal. The thermosensitive current generation circuit generates a thermosensitive current according to the fingerprint-sensing pixel corresponding to a fingerprint ridge or a fingerprint valley. The plurality of read-out circuits is respectively coupled to the plurality of fingerprint-sensing pixel columns.
    Type: Application
    Filed: June 5, 2018
    Publication date: September 19, 2019
    Applicant: Au Optronics Corporation
    Inventors: Wen-Je Lu, Yu-Jung Liu
  • Patent number: 9817076
    Abstract: Estimation circuit for SOC and SOH of battery includes a control circuit, a current estimation circuit, an open-circuit voltage detection circuit, an optional multiplexer and an electrical-capacity calculation circuit. The control circuit operates under six modes based on a reset signal, a voltage signal and a current signal. The current estimation circuit comprises a current modification circuit and a Coulomb integral circuit, the current modification circuit receives the current signal and outputs a modifying current signal, the Coulomb integral circuit integrates the modifying current signal to obtain an estimating electrical-capacity value. The open-circuit voltage detection circuit receives the voltage signal and outputs an initial electrical-capacity value. The optional multiplexer receives an estimation optional signal, the estimating electrical-capacity value and the initial electrical-capacity value to output an estimating electrical-capacity signal.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: November 14, 2017
    Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Chua-Chin Wang, Wen-Je Lu, Min-Yu Tseng
  • Publication number: 20160103181
    Abstract: Estimation circuit for SOC and SOH of battery includes a control circuit, a current estimation circuit, an open-circuit voltage detection circuit, an optional multiplexer and an electrical-capacity calculation circuit. The control circuit operates under six modes based on a reset signal, a voltage signal and a current signal. The current estimation circuit comprises a current modification circuit and a Coulomb integral circuit, the current modification circuit receives the current signal and outputs a modifying current signal, the Coulomb integral circuit integrates the modifying current signal to obtain an estimating electrical-capacity value. The open-circuit voltage detection circuit receives the voltage signal and outputs an initial electrical-capacity value. The optional multiplexer receives an estimation optional signal, the estimating electrical-capacity value and the initial electrical-capacity value to output an estimating electrical-capacity signal.
    Type: Application
    Filed: November 21, 2014
    Publication date: April 14, 2016
    Inventors: Chua-Chin Wang, Wen-Je Lu, Min-Yu Tseng