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: 11262863Abstract: 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: GrantFiled: July 17, 2019Date of Patent: March 1, 2022Assignee: AU OPTRONICS CORPORATIONInventors: Wen-Je Lu, Yu-Jung Liu
-
Patent number: 10839188Abstract: 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: GrantFiled: October 23, 2018Date of Patent: November 17, 2020Assignee: Au Optronics CorporationInventors: Wen-Je Lu, Yu-Jung Liu
-
Patent number: 10592723Abstract: 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: GrantFiled: June 5, 2018Date of Patent: March 17, 2020Assignee: Au Optronics CorporationInventors: Wen-Je Lu, Yu-Jung Liu
-
Publication number: 20200073505Abstract: 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: ApplicationFiled: July 17, 2019Publication date: March 5, 2020Inventors: Wen-Je LU, Yu-Jung LIU
-
Publication number: 20190311171Abstract: 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: ApplicationFiled: October 23, 2018Publication date: October 10, 2019Applicant: Au Optronics CorporationInventors: Wen-Je Lu, Yu-Jung Liu
-
Publication number: 20190286872Abstract: 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: ApplicationFiled: June 5, 2018Publication date: September 19, 2019Applicant: Au Optronics CorporationInventors: Wen-Je Lu, Yu-Jung Liu
-
Patent number: 9817076Abstract: 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: GrantFiled: November 21, 2014Date of Patent: November 14, 2017Assignee: NATIONAL SUN YAT-SEN UNIVERSITYInventors: Chua-Chin Wang, Wen-Je Lu, Min-Yu Tseng
-
Publication number: 20160103181Abstract: 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: ApplicationFiled: November 21, 2014Publication date: April 14, 2016Inventors: Chua-Chin Wang, Wen-Je Lu, Min-Yu Tseng