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    Imaging control circuit for collecting object image data for an object
    31.
    发明授权
    Imaging control circuit for collecting object image data for an object 有权

    公开(公告)号：US12148237B2

    公开(公告)日：2024-11-19

    申请号：US18321730

    申请日：2023-05-22

    Applicant: Novatek Microelectronics Corp.

    Inventor： Huan-Teng Cheng ,  Ting-Hsuan Hung ,  Wei-Lun Shih ,  Huang-Chin Tang

    IPC: G06V40/13 ,  G06F3/041 ,  G09G3/20

    Abstract: An imaging control circuit for collecting object image data for an object presented on a portion of a surface of a display panel is provided. The imaging control circuit includes a first circuit, a second circuit and a third circuit. The first circuit is adapted to receive touch sensing signals from a set of touch sensors located in the display panel. The second circuit is adapted to receive object image sensing signals from a set of imaging sensors. The object image sensing signals are associated with the object detected on the surface of the display panel. The third circuit is adapted to determine a location of the object from the touch sensing signals and generate a variable sized object imaging zone based on a location and a size of an object image. The variable sized object imaging zone includes a variable subset of the imaging sensors.

    ELECTRONIC CIRCUIT HAVING DISPLAY DRIVING FUNCTION, TOUCH SENSING FUNCTION AND FINGERPRINT SENSING FUNCTION
    34.
    发明公开
    ELECTRONIC CIRCUIT HAVING DISPLAY DRIVING FUNCTION, TOUCH SENSING FUNCTION AND FINGERPRINT SENSING FUNCTION 审中-公开

    公开(公告)号：US20230196962A1

    公开(公告)日：2023-06-22

    申请号：US18170541

    申请日：2023-02-17

    Applicant: Novatek Microelectronics Corp.

    Inventor： Huan-Teng Cheng ,  Ting-Hsuan Hung ,  Tzu-Wen Hsieh ,  Wei-Lun Shih ,  Huang-Chin Tang

    IPC: G09G3/20 ,  G06F3/041 ,  G06V40/13

    CPC classification number: G09G3/20 ,  G06F3/0412 ,  G06V40/1318 ,  G09G2310/0272

    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.

    DRIVING APPARATUS AND OPERATION METHOD THEREOF
    35.
    发明申请
    DRIVING APPARATUS AND OPERATION METHOD THEREOF 有权

    公开(公告)号：US20220406085A1

    公开(公告)日：2022-12-22

    申请号：US17891149

    申请日：2022-08-19

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wei-Lun Shih ,  Tsen-Wei Chang ,  Cho-Hsuan Jhang ,  Chih-Peng Hsia ,  Cheng-Yu Chiang

    IPC: G06V40/13

    Abstract: A driving apparatus and an operation method thereof are provided. The driving apparatus includes a first driving circuit and a second driving circuit. The first driving circuit suspends performing at least one of a display driving operation and a touch sensing operation during a skip period under a driving mode, and the first driving circuit performs the at least one of the display driving operation and the touch sensing operation outside the skip period under the driving mode. The second driving circuit is coupled to the first driving circuit. The second driving circuit performs a fingerprint sensing operation during the skip period.

    Electronic circuit having display driving function, touch sensing function and fingerprint sensing function
    36.
    发明授权
    Electronic circuit having display driving function, touch sensing function and fingerprint sensing function 有权

    公开(公告)号：US11320928B2

    公开(公告)日：2022-05-03

    申请号：US16944157

    申请日：2020-07-31

    Applicant: Novatek Microelectronics Corp.

    Inventor： Huan-Teng Cheng ,  Wei-Lun Shih ,  Huang-Chin Tang

    IPC: G06F3/041 ,  G06K9/00 ,  G06F3/044 ,  G09G3/20

    Abstract: An electronic circuit is adapted to drive a display panel having touch sensors and fingerprint sensors. The electronic circuit includes a first circuit, a second circuit, a first switch circuit and a control circuit. The first circuit processes touch sensing signals from the touch sensors. The second circuit processes fingerprint sensing signals corresponding to a fingerprint from the fingerprint sensors. The first switch circuit includes a plurality of first terminals coupled to the first circuit and the second circuit and a plurality of second terminals configurable to be coupled to the display panel. The first switch circuit couples a part of the first terminals to the second terminals in a first time interval and couples the other part of the first terminals to the second terminals in a second time interval. The touch sensing signals and the fingerprint sensing signals are inputted to the electronic circuit through the second terminals.

    ELECTRONIC CIRCUIT AND A GATE DRIVER CIRCUIT
    38.
    发明申请
    ELECTRONIC CIRCUIT AND A GATE DRIVER CIRCUIT 有权

    公开(公告)号：US20220092287A1

    公开(公告)日：2022-03-24

    申请号：US17407133

    申请日：2021-08-19

    Applicant: Novatek Microelectronics Corp.

    Inventor： Wei-Lun Shih ,  Wu Wei Lin ,  Kuei Jung Chen

    IPC: G06K9/00 ,  G06F3/041 ,  G09G3/36

    Abstract: An electronic circuit adapted to control an operation of a gate driver circuit is provided. The electronic circuit includes a gate control circuit. The gate control circuit outputs control signals to the gate driver circuit in a display period and a fingerprint sensing period via the same output nodes. The control signals include a start pulse signal and a switch control signal. The switch control signal controls the gate driver circuit to operate in the display period or the fingerprint sensing period. The gate driver circuit includes a plurality of shift register groups and a switch circuit. The shift register groups output scan signals according to the start pulse signal. The switch circuit receives and outputs the scan signals to display scan lines in the display period and outputs the scan signals to fingerprint scan lines in the fingerprint sensing period according to the switch control signal.

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