Patents by Inventor Tzu-Wen Hsieh

Tzu-Wen Hsieh 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: 11935452
    Abstract: An electronic circuit for operating with a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a third circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The third circuit determines a touch information according to touch sensing signals from the touch sensors. The first switch circuit includes a plurality of first switch units, each of the first switch units includes a first switch element and a second switch element. The control circuit controls the first switch circuit to transmit the display driving signals in a first time interval, controls the first switch circuit to transmit the fingerprint sensing signals in a second time interval, and controls the third circuit to receive the fingerprint sensing signals in a third time interval.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: March 19, 2024
    Assignee: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Tzu-Wen Hsieh, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20230267762
    Abstract: An electronic circuit adapted to drive a display panel is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective first gray levels or the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to a same gamma curve.
    Type: Application
    Filed: April 26, 2023
    Publication date: August 24, 2023
    Applicant: Novatek Microelectronics Corp.
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Patent number: 11721123
    Abstract: An electronic circuit adapted to drive a display panel is provided. The display panel includes touch sensors and fingerprint sensors. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to the same gamma curve.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: August 8, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Publication number: 20230196962
    Abstract: An electronic circuit for operating with a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a third circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The third circuit determines a touch information according to touch sensing signals from the touch sensors. The first switch circuit includes a plurality of first switch units, each of the first switch units includes a first switch element and a second switch element. The control circuit controls the first switch circuit to transmit the display driving signals in a first time interval, controls the first switch circuit to transmit the fingerprint sensing signals in a second time interval, and controls the third circuit to receive the fingerprint sensing signals in a third time interval.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 22, 2023
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Tzu-Wen Hsieh, Wei-Lun Shih, Huang-Chin Tang
  • Patent number: 11625939
    Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The first switch circuit is coupled to a second switch circuit on the display panel. The control circuit generates control signals for controlling the first switch circuit and the second switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through the first and the second switch circuits in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors through the first and the second switch circuits in a second time interval.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 11, 2023
    Assignee: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Tzu-Wen Hsieh, Wei-Lun Shih, Huang-Chin Tang
  • Publication number: 20220130166
    Abstract: An electronic circuit adapted to drive a display panel is provided. The display panel includes touch sensors and fingerprint sensors. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the display panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area. The display driving circuit drives pixels of the first area with respective first gray levels and pixels of a second area outside the first area with respective second gray levels. The display driving circuit processes respective third gray levels to obtain the respective second gray levels. The display driving circuit generates gamma voltages corresponding to the respective first gray levels and the respective second gray levels according to the same gamma curve.
    Type: Application
    Filed: January 4, 2022
    Publication date: April 28, 2022
    Applicant: Novatek Microelectronics Corp.
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Patent number: 11270095
    Abstract: An electronic circuit for driving a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area of the panel. The display driving circuit drives pixels over the panel with respective first gray levels during a first phase, and drives pixels of the first area with respective second gray levels and pixels of a second area outside the first area with respective third gray levels during a second phase. The respective second gray levels are higher than the respective first gray levels, and the respective third gray levels are lower than the respective second gray levels.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 8, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Publication number: 20210109639
    Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The first group of pads comprise first pads for driving the fingerprint sensing pixels, and are disposed on at least one of a left portion and a right portion of the main body with respect to an axis. The second group of pads comprise second pads for driving the display pixels and the touch sensors, and are disposed on at least another one of the left portion and the right portion, wherein at least one group of the first group of pads and the second group of pads are disposed only on the one of the left portion and the right portion.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Inventors: TZU-WEN HSIEH, WEILUN SHIH, TING-HSUAN HUNG, HUANG-CHIN TANG
  • Publication number: 20210109638
    Abstract: A single-chip device for driving a panel including fingerprint sensing pixels, display pixels and touch sensors, electronic module therefor, and electronic apparatus including the single-chip device are provided. The single-chip device comprises a main body, a first group of pads and a second group of pads disposed in the main body. The main body has a left portion and a right portion with respect to an axis. The first group of pads comprise a plurality of first pads for driving the fingerprint sensing pixels, are disposed on both the left portion and the right portion and configured to be coupled to the fingerprint sensing pixels. The second group of pads comprise a plurality of second pads for driving the display pixels and the touch sensors, are disposed on both the left portion and the right portion and configured to be coupled to the panel.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 15, 2021
    Inventors: TZU-WEN HSIEH, WEILUN SHIH, TING-HSUAN HUNG, HUANG-CHIN TANG
  • Publication number: 20210056281
    Abstract: An electronic circuit for driving a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a touch sensing circuit, a fingerprint sensing circuit and a display driving circuit. The touch sensing circuit senses a touch of a finger and determines a first area corresponding to the touch on the panel. The fingerprint sensing circuit senses a fingerprint image of the finger corresponding to the first area of the panel. The display driving circuit drives pixels over the panel with respective first gray levels during a first phase, and drives pixels of the first area with respective second gray levels and pixels of a second area outside the first area with respective third gray levels during a second phase. The respective second gray levels are higher than the respective first gray levels, and the respective third gray levels are lower than the respective second gray levels.
    Type: Application
    Filed: July 6, 2020
    Publication date: February 25, 2021
    Inventors: Wei-Lun Shih, Tzu-Wen Hsieh, Huan-Teng Cheng, Huang-Chin Tang, Yueh-Teng Mai, Shi-Hao Huang, Jung-Chung Lee
  • Publication number: 20210034833
    Abstract: An electronic circuit adapted to drive a display panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit generates display driving signals for driving the display panel. The second circuit receives fingerprint sensing signals from the fingerprint sensors. The first switch circuit is coupled to a second switch circuit on the display panel. The control circuit generates control signals for controlling the first switch circuit and the second switch circuit, so as to control the electronic circuit to transmit the display driving signals from the first circuit to the data lines through the first and the second switch circuits in a first time interval, and control the electronic circuit to receive the fingerprint sensing signals from the fingerprint sensors through the first and the second switch circuits in a second time interval.
    Type: Application
    Filed: July 20, 2020
    Publication date: February 4, 2021
    Applicant: Novatek Microelectronics Corp.
    Inventors: Huan-Teng Cheng, Ting-Hsuan Hung, Tzu-Wen Hsieh, Wei-Lun Shih, Huang-Chin Tang