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    DISPLAY APPARATUS AND FINGERPRINT SENSING METHOD THEREOF
    1.
    发明公开
    DISPLAY APPARATUS AND FINGERPRINT SENSING METHOD THEREOF 审中-公开

    公开(公告)号：US20240087356A1

    公开(公告)日：2024-03-14

    申请号：US18510688

    申请日：2023-11-16

    Applicant: Novatek Microelectronics Corp.

    Inventor： Cho-Hsuan Jhang ,  Chao-Yu Meng ,  Shih-Cheng Chen ,  Chih-Peng Hsia

    IPC: G06V40/13 ,  H04N23/57

    CPC classification number: G06V40/1312 ,  G06V40/1306 ,  H04N23/57

    Abstract: A display apparatus and an fingerprint sensing method thereof are provided. A display panel of the display apparatus has a pixel circuit array, an in-display touch sensor array, and an in-display fingerprint sensor array. A driving circuit drives the in-display fingerprint sensor array to read a fingerprint image. A current display frame period is divided into a plurality of unit periods, each of the unit periods includes at least one fingerprint sensing period and one or both of a display driving period and a touch sensing period. The driving circuit resets a current fingerprint sensor in the in-display fingerprint sensor array during a first fingerprint sensing period among these fingerprint sensing periods of the first display frame period. The driving circuit reads a sensing result of the current fingerprint sensor during a second fingerprint sensing period succeeding to the first fingerprint sensing period.

    ELECTRODE STRUCTURE OF CAPACITIVE TOUCH PANEL
    2.
    发明申请
    ELECTRODE STRUCTURE OF CAPACITIVE TOUCH PANEL 审中-公开
    电容触摸屏电极结构

    公开(公告)号：US20130277091A1

    公开(公告)日：2013-10-24

    申请号：US13865982

    申请日：2013-04-18

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Chun-Chieh Chang ,  Chih-Chang Lai ,  Chih-Peng Hsia

    IPC: H05K1/02

    CPC classification number: H05K1/0296 ,  G06F3/044 ,  G06F2203/04111

    Abstract: An electrode structure of a capacitive touch panel including a plurality of receiving electrodes and driving electrodes is provided. Each of the receiving electrodes has at least one opening. Each of the driving electrodes includes a main region and a plurality of elongation regions. The area of each driving electrode is larger than that of each receiving electrode. Parts of the receiving electrodes surround a corresponding one of the driving electrodes, and the elongation regions of the surrounded driving electrode correspondingly stretch into the openings of the receiving electrodes which surround the driving electrode. By using the foregoing electrode structure, the capacitive touch panel is not only capable of providing sensing signals with less noise but is also capable of increasing input signals to enhance the signal to noise ratio.

    Abstract translation: 提供了包括多个接收电极和驱动电极的电容式触摸面板的电极结构。 每个接收电极具有至少一个开口。 每个驱动电极包括主区域和多个伸长区域。 每个驱动电极的面积大于每个接收电极的面积。 接收电极的一部分围绕相应的一个驱动电极，并且所围绕的驱动电极的伸长区域相应地延伸到围绕驱动电极的接收电极的开口中。 通过使用上述电极结构，电容式触摸面板不仅能​​够提供具有较小噪声的感测信号，而且能够增加输入信号以提高信噪比。

    Electronic device and fingerprint sensing control method thereof
    5.
    发明授权
    Electronic device and fingerprint sensing control method thereof 有权

    公开(公告)号：US11093080B2

    公开(公告)日：2021-08-17

    申请号：US16726250

    申请日：2019-12-24

    Applicant: Novatek Microelectronics Corp.

    Inventor： Shih-Cheng Chen ,  Cho-Hsuan Jhang ,  Chih-Peng Hsia ,  Shiang-Fei Wang ,  Su-Wei Lien

    IPC: G06F3/041 ,  G06K9/00 ,  G06F3/042 ,  G06K9/20

    Abstract: An electronic device and a fingerprint sensing control method thereof are provided. A sensing region of a display panel is divided into a plurality of fingerprint zones. The electronic device determines at least one target fingerprint zone from the fingerprint zones according to a touched area. The electronic device scans the at least one target fingerprint zone for performing fingerprint sensing. The electronic device performs an accelerated reading operation. The accelerated reading operation includes: reading at least one sensing signal from the at least one target fingerprint zone; and skipping reading at least one of the fingerprint zones other than the at least one target fingerprint zone among the fingerprint zones.

    DRIVING APPARATUS AND OPERATION METHOD THEREOF
    6.
    发明申请
    DRIVING APPARATUS AND OPERATION METHOD THEREOF 审中-公开

    公开(公告)号：US20200327301A1

    公开(公告)日：2020-10-15

    申请号：US16845001

    申请日：2020-04-09

    Applicant: Novatek Microelectronics Corp.

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

    IPC: G06K9/00

    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 performs a first driving mode on a panel. The first driving circuit performs the first driving mode during a first frame period among a plurality of frame periods and skips the first driving mode during a first skip period between the first frame period and a second frame period among the frame periods. The first driving circuit outputs timing control signal including a timing that the first driving mode is skipped. The second driving circuit is coupled to the first driving circuit to receive the timing control signal. The second driving circuit performs a fingerprint sensing operation different from the first driving mode on the panel according to the timing control signal during the first skip period.

    Electrode structure of capacitive touch panel
    7.
    发明授权
    Electrode structure of capacitive touch panel 有权
    电极触摸屏电极结构

    公开(公告)号：US08963008B2

    公开(公告)日：2015-02-24

    申请号：US13680114

    申请日：2012-11-19

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chih-Chang Lai ,  Shih-Ming Lin ,  Chih-Peng Hsia

    IPC: H01B1/00 ,  G06F3/041

    CPC classification number: H01B1/00 ,  G06F3/041 ,  G06F3/044

    Abstract: An electrode structure of a capacitive touch panel is provided, which includes a plurality of receiving electrodes and a plurality of driving electrodes. Each of the receiving electrodes has a hexagonal electrode structure. Each of the driving electrodes includes a main region. Each of the main regions has a quadrilateral electrode structure. The area of each driving electrode is larger than that of each receiving electrode. By using the foregoing electrode structure, the capacitive touch panel can not only provide sensing signals with less noise but also increase the intensity of input signals to enhance the signal to noise ratio.

    Abstract translation: 提供了一种电容触摸面板的电极结构，其包括多个接收电极和多个驱动电极。 每个接收电极具有六边形电极结构。 每个驱动电极包括主区域。 每个主要区域具有四边形电极结构。 每个驱动电极的面积大于每个接收电极的面积。 通过使用上述电极结构，电容式触摸面板不仅可以提供具有较小噪声的感测信号，而且可以增加输入信号的强度，从而提高信噪比。

    ELECTRONIC DEVICE AND METHOD FOR PERFORMING FINGERPRINT SENSING CONTROL
    9.
    发明申请
    ELECTRONIC DEVICE AND METHOD FOR PERFORMING FINGERPRINT SENSING CONTROL 有权

    公开(公告)号：US20230021934A1

    公开(公告)日：2023-01-26

    申请号：US17960136

    申请日：2022-10-05

    Applicant: Novatek Microelectronics Corp.

    Inventor： Shih-Cheng Chen ,  Cho-Hsuan Jhang ,  Chih-Peng Hsia ,  Shiang-Fei Wang ,  Su-Wei Lien

    IPC: G06F3/041 ,  G06F3/042 ,  G06V10/22 ,  G06V40/13 ,  G06V40/12

    Abstract: An electronic device, and a method for performing fingerprint sensing control on a display panel are provided. A sensing region of the display panel is divided into a plurality of fingerprint zones. The electronic device determines at least one target fingerprint zone from the fingerprint zones according to a touch location, wherein the fingerprint zones are coupled to a plurality of scanning groups, each of the scanning groups comprises one or more scanning lines, the at least one target fingerprint zone is coupled to a first scanning group and a second scanning group other than the first scanning group among the plurality of scanning groups. The electronic device scans the first scanning group with a first speed, and scans the second scanning group with a second speed higher than the first speed or skips scanning the second scanning group.

    COLUMN ANALOG-TO-DIGITAL CONVERTER AND LOCAL COUNTING METHOD THEREOF
    10.
    发明申请
    COLUMN ANALOG-TO-DIGITAL CONVERTER AND LOCAL COUNTING METHOD THEREOF 有权

    公开(公告)号：US20220345147A1

    公开(公告)日：2022-10-27

    申请号：US17241075

    申请日：2021-04-27

    Applicant: Novatek Microelectronics Corp.

    Inventor： Chih-Peng Hsia ,  Cho-Hsuan Jhang ,  Su-Wei Lien

    IPC: H03M1/50 ,  H03M1/82 ,  H03K5/156 ,  H03K5/135

    Abstract: A column analog-to-digital converter and the local counting method is provided. The column analog-to-digital converter includes a plurality of analog-to-digital converters in parallel. Each of the analog-to-digital converters includes a comparator and a counting circuit. The comparator compares the ramp voltage with one of the plurality of column signals to generate a comparator output signal. The counting circuit generates a local clock by means of a voltage-controlled oscillator of the counting circuit according to the base clock and the comparator output signal, counts the base clock and the local clock respectively to generate a first counting output and a second counting output, and combines the first counting output with the second counting output to generate the counting output.

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