Patents by Inventor Tzu-Wei Liu

Tzu-Wei Liu 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: 20190147211
    Abstract: A fingerprint sensor of a fingerprint sensing device includes a first electrode strip and at least two second electrode strips adjacent to the first electrode strip. A driving method of the fingerprint sensor includes: providing a first voltage signal to the first electrode strip, and simultaneously providing at least two second voltage signal to the second electrode strips, respectively; and measuring a self capacitance value of the first electrode strip to determine whether a touch occurs at the fingerprint sensor, wherein the first voltage signal and each of the second voltage signals have a first voltage difference at a first time point and have a second voltage difference at a second time point, the first voltage difference and the second voltage difference are substantially equal, and the self capacitance value of the first electrode strip is performed at the second time point.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Applicant: ILI TECHNOLOGY CORP.
    Inventors: Cheng-Shian Shu, Hu-Chi Chang, Tzu Wei Liu
  • Publication number: 20190016087
    Abstract: Disclosed herein are composite laminated articles and methods for manufacturing the same. According to some embodiments, the composite laminated article includes a polyethylene terephthalate (PET) fiber fabric layer, a PET nonwoven laminated board, and a PET film interposed between the PET fiber fabric layer and the PET nonwoven laminated board. In some embodiments, the composite laminated article further includes a low-density PET nonwoven fabric layer interposed between the PET film and the PET nonwoven laminated board. According to embodiments of the present disclosure, the composite laminated article is free of any thermoset binder, and hence, the composite laminated article is one hundred percent recyclable.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 17, 2019
    Applicant: MINIWIZ CO.,LTD.
    Inventors: Chian-Chi HUANG, Tzu-Wei LIU, Yu-Hung TARN, Yi-Chun CHANG, GUILLEMETTE-PAULINE-MARION LEGRAND, CAMILLE-JEANNE TEXIER, JOHANN JOSEPH ALEXEJ BOEDECKER
  • Publication number: 20180290340
    Abstract: Disclosed herein is a mobile plastic recycling system mounted in a vehicle. The system is configured to process a plastic article and make it into thermoplastic items. The mobile plastic recycling system includes a plastic recycling apparatus and a power supply apparatus that are electrically coupled with each other; the system also includes a vehicle configured to carry and transport the power supply apparatus and plastic recycling apparatus.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 11, 2018
    Applicant: MINIWIZ CO.,LTD.
    Inventors: Kong-Sang Jackie CHAN, Chian-Chi HUANG, Tzu-Wei LIU, Ya-Ting CHANG, Tian-Jia HSIEH, Yi-Chun CHANG, Chia-Chun HSIEH, Enzo-Louis MUTTINI
  • Patent number: 9949565
    Abstract: Disclosed herein is a supporting assembly that allows easy assembly of a furniture. The supporting assembly includes structures that employ easy-to-use locking mechanism so that a user may assemble a furniture at desirable configuration without using a tool.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 24, 2018
    Inventors: Chian-Chi Huang, Tzu-Wei Liu, Yu-Hung Tarn, Yi-Chun Chang, Johann Joseph Alexej Boedecker, James Edward Hall, Bjorn Schlingmann
  • Patent number: 9933900
    Abstract: A sensing electrode group formed on a substrate of a touch apparatus includes a plurality of sensing electrode unit pairs arranged along a first direction. Each sensing electrode unit pair includes a first sensing electrode unit and a second sensing electrode unit corresponding to the first sensing electrode unit. The first sensing electrode unit includes at least one first electrode, at least one corresponding second electrode, a first conducting wire and a second conducting wire. The second sensing electrode unit includes at least one third electrode, at least one corresponding fourth electrode, a third conducting wire and a fourth conducting wire. The first and second sensing electrode units are arranged along a second direction, and the third and fourth conducting wires are routed along the second direction next to the first sensing electrode unit.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: April 3, 2018
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventor: Tzu-Wei Liu
  • Publication number: 20170344789
    Abstract: A fingerprint recognition device includes a light-transmissible substrate, a plurality of sensing elements, a set of conductive lines and a fingerprint recognition chip. The sensing elements are disposed and the set of conductive lines are an upper surface of the light-transmissible substrate. The fingerprint recognition chip is also disposed on the upper surface of the light-transmissible substrate, and is connected to the sensing elements through the set of conductive lines. The fingerprint recognition chip drives the sensing elements, receives a plurality of sensing results generated by the sensing elements, and accordingly determines a user fingerprint.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 30, 2017
    Inventors: CHIA-WEI CHANG, TZU WEI LIU
  • Publication number: 20170337411
    Abstract: A fingerprint sensor includes a plurality of first touch electrode strips and a plurality of second touch electrode strips. The first touch electrode strips are arranged along a first direction, and the second touch electrode strips are arranged along a second direction different from first direction. The first touch electrode strips and the second touch electrode strips intersect to form a plurality of intersections. A maximum included angle is present at each of the intersections of the first touch electrode strips and the second touch electrode strips, and to maximum included angles corresponding to the same first touch electrode strip are different.
    Type: Application
    Filed: April 26, 2017
    Publication date: November 23, 2017
    Inventor: TZU WEI LIU
  • Patent number: 9811709
    Abstract: A capacitive sensor structure includes: a substrate; a multilayer wire structure, disposed on the substrate to form a passive sensing circuit; and a semiconductor chip, formed thereon a control circuit, fixedly mounted on a surface of the substrate and electrically connected to the multilayer wire structure.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: November 7, 2017
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventors: Ming-Chung Chang, Tzu Wei Liu
  • Patent number: 9733772
    Abstract: A correction apparatus for a touch panel is provided. The touch panel includes multiple upper electrodes and multiple lower electrodes interleaved along a first reference direction. An initial coordinate calculation module calculates a first initial coordinate in the first reference direction and a second initial coordinate in a second reference direction of a touch position according to sensing results associated with the upper electrodes and sensing results associated with lower electrodes. A correction parameter calculation module calculates a first correction parameter according to the sensing results of the lower electrodes, and calculates a second correction parameter according to the sensing results of the upper electrodes. A compensation calculation module calculates a compensation amount according to the first correction parameter, the second correction parameter and the first initial coordinate. A correction module corrects the second initial coordinate according to the compensation amount.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: August 15, 2017
    Assignee: MStar Semiconductor, Inc.
    Inventor: Tzu-Wei Liu
  • Publication number: 20170193275
    Abstract: A fingerprint identification electrode includes a first conductive layer, a second conductive layer, and an insulating layer between the first conductive layer and the second conductive layer. The first conductive layer includes a plurality of first touch electrode strips. The second conductive layer includes a plurality of second touch electrode strips and a plurality of dummy electrodes. The first touch electrode strips and the second touch electrode strips intersect. The second touch electrode strips are separated from the dummy electrodes. A part of each of the first touch electrode strips that is located between any two adjacent second electrode strips overlaps at least one of the dummy electrodes.
    Type: Application
    Filed: December 21, 2016
    Publication date: July 6, 2017
    Inventor: TZU WEI LIU
  • Patent number: 9678612
    Abstract: A single layered electrode structure includes a plurality of first electrode groups arranged along a first direction, a plurality of second electrode groups arranged along the first direction, and a plurality of third electrodes arranged along the first direction. Each of the first electrode groups includes at least one first electrode arranged along a second direction. Each of the second electrode groups includes a plurality of second electrodes arranged along the second direction, with each of the second electrodes at least corresponding to the at least one first electrode. Each of the third electrodes is arranged as one of combinations of between two of the first electrode groups, between two of the first electrode groups, and between one of the first electrode groups and one of the second electrode groups.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: June 13, 2017
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventor: Tzu-Wei Liu
  • Patent number: 9612696
    Abstract: A plurality of dummy lines are arranged between a plurality of sensing electrode unit pairs to compensate a capacitance sensing value imbalance caused by two sensing electrodes. Further, a coordinate compensation value is calculated according to a layout of electrodes and wires to alleviate or reduce a ripple effect of sensed position errors. As such, sensing accuracy of a touch sensing apparatus is improved.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: April 4, 2017
    Assignee: MStar Semiconductor, Inc.
    Inventor: Tzu-Wei Liu
  • Publication number: 20170068365
    Abstract: A touch display apparatus capable of fingerprint recognition includes a display panel, a cover plate, a touch sensing electrode set and a fingerprint recognition electrode set. The display panel includes a first surface. The cover plate covers the first surface of the display panel, and includes a second surface facing the first surface of the display panel. The touch sensing electrode set is disposed between the display panel and the cover plate. The fingerprint recognition electrode set is directly formed on the first surface of the display panel or the second surface of the cover plate. The cover plate further covers the fingerprint recognition electrode set.
    Type: Application
    Filed: August 3, 2016
    Publication date: March 9, 2017
    Inventor: Tzu Wei LIU
  • Patent number: 9575611
    Abstract: A touch panel is provided. The touch panel includes a pixel array including plural pixels arranged in matrix, plural scan lines electrically coupled to a corresponding pixel line of the pixel array, and at least one touch detection unit arranged corresponding to the pixel array. The touch detection unit includes a first transistor having a first transistor, a second transistor, and a touch detection circuit. The first transistor has a first terminal for receiving a first bias voltage, a second terminal, and a gate. The second transistor has a third terminal electrically coupled to the second terminal, a fourth terminal for receiving a second bias voltage, and a gate. The touch detection circuit includes a first capacitor and a second capacitor and is configured to output a touch signal according to the capacitance value of the first capacitor and the second capacitor when the touch panel is being touched.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 21, 2017
    Assignee: AU OPTRONICS CORPORATION
    Inventor: Tzu-Wei Liu
  • Publication number: 20170017823
    Abstract: A capacitive sensor structure includes: a substrate; a multilayer wire structure, disposed on the substrate to form a passive sensing circuit; and a semiconductor chip, formed thereon a control circuit, fixedly mounted on a surface of the substrate and electrically connected to the multilayer wire structure.
    Type: Application
    Filed: June 27, 2016
    Publication date: January 19, 2017
    Inventors: Ming-Chung Chang, TZU WEI LIU
  • Patent number: 9495054
    Abstract: A touch control system includes first and second sensing regions. At least one sensor monitors the first sensing region to generate a first sensing amount. At least one second sensor monitors the second sensing region to generate a second sensing amount. An initial coordinate generating module generates an initial coordinate according to the first and second sensing amounts, and determines whether a touch point is in an intersection region. When the determination result of the initial coordinate generating module is affirmative, a correction value generating module generates a correction value according to the first and second sensing amounts. A corrected coordinate generating module multiplies the initial coordinate by a first weight to generate a first weighted result, multiplies the correction value by a second weight to generate a second weighted result, and adds the first and the second weighted results to generate a corrected coordinate.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 15, 2016
    Assignee: MStar Semiconductor, Inc.
    Inventor: Tzu-Wei Liu
  • Patent number: 9489084
    Abstract: A sensing method for a sensing electrode cluster is provided. The sensing electrode cluster includes a plurality of groups, each comprising a plurality of bars. The sensing method includes scanning each of the groups according to a first scanning sequence, and scanning each of the groups according to a second scanning sequence, and determining a sensing position according to the first position and the second position. The first scanning sequence is different from the second scanning sequence.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 8, 2016
    Assignee: MSTAR SEMICONDUCTOR, INC.
    Inventor: Tzu-Wei Liu
  • Patent number: 9471189
    Abstract: A sensing electrode structure formed on a substrate of a touch device is provided. The sensing electrode structure includes: a first sensing electrode row; a second sensing electrode row, parallel to the first sensing electrode row, including a plurality of second sensing electrode units; and a guard ring, surrounding the second sensing electrode row, including a plurality of guard electrodes arranged between each two of the second sensing electrode units.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: October 18, 2016
    Assignee: MStar Semiconductor, Inc.
    Inventor: Tzu-Wei Liu
  • Publication number: 20160202806
    Abstract: A touch panel is provided. The touch panel includes a pixel array including plural pixels arranged in matrix, plural scan lines electrically coupled to a corresponding pixel line of the pixel array, and at least one touch detection unit arranged corresponding to the pixel array. The touch detection unit includes a first transistor having a first transistor, a second transistor, and a touch detection circuit. The first transistor has a first terminal for receiving a first bias voltage, a second terminal, and a gate. The second transistor has a third terminal electrically coupled to the second terminal, a fourth terminal for receiving a second bias voltage, and a gate. The touch detection circuit includes a first capacitor and a second capacitor and is configured to output a touch signal according to the capacitance value of the first capacitor and the second capacitor when the touch panel is being touched.
    Type: Application
    Filed: March 21, 2016
    Publication date: July 14, 2016
    Inventor: Tzu-Wei Liu
  • Patent number: D838581
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: January 22, 2019
    Assignee: MINIWIZ CO., LTD.
    Inventors: Chian-Chi Huang, Tzu-Wei Liu, Yu-Hung Tarn, Johann Joseph Alexej Boedecker, James Edward Hall, Bjorn Schlingmann