VOLTAGE DRIVING METHOD AND DEVICE FOR TOUCH DISPLAY PANEL, AND TOUCH DISPLAY PANEL

    公开(公告)号:US20210333972A1

    公开(公告)日:2021-10-28

    申请号:US16472010

    申请日:2018-11-23

    Abstract: The present disclosure provides a voltage driving method and device for a touch display panel, and a touch display panel, which includes a common electrode extending in a first direction and a plurality of columns of touch electrodes extending parallel to each other in a second direction. The voltage driving method includes: applying a first scanning voltage to two outermost columns of touch electrodes during a first period of a first touch cycle including a plurality of periods, the first scanning voltage being equal to a reference voltage; detecting a first output voltage output by the two outermost columns of touch electrodes during the first period; and adjusting, based on the detected first output voltage, the scanning voltage applied to the two outermost columns of touch electrodes during a first period of a second touch cycle immediately after the first touch cycle, to a second scanning voltage.

    SHIFT REGISTER CIRCUIT, DRIVING CIRCUIT, DISPLAY DEVICE, AND DRIVING METHOD

    公开(公告)号:US20210223902A1

    公开(公告)日:2021-07-22

    申请号:US16633231

    申请日:2019-02-20

    Inventor: Lei WANG Jigang SUN

    Abstract: A shift register circuit, a driving circuit, a display device and a driving method. The shift register circuit including P shift registers that are cascaded and a bypass output circuit, wherein each of the P shift registers includes a first scan output terminal, the first scan output terminal is configured to output a first scan signal, the bypass output circuit includes Q control terminals and a second scan output, the Q control terminals of the bypass output circuit are configured to receive the first scan signal, and the bypass output circuit is configured to output a second scan signal under control of the first scan signal received by the Q control terminals respectively, P is an integer greater than or equal to 2, and Q is an integer less than or equal to P.

    CAPACITANCE COMPENSATION MODULE AND METHOD, SELF-CAPACITIVE TOUCH DISPLAY PANEL AND DISPLAY DEVICE

    公开(公告)号:US20210191538A1

    公开(公告)日:2021-06-24

    申请号:US16079132

    申请日:2018-02-01

    Abstract: The present disclosure provides a capacitance compensation module, a capacitance compensation method, a self-capacitive touch display panel and a self-capacitive touch display device. The capacitance compensation module includes: a detection circuitry configured to detect an initial capacitance of a capacitor formed between each of the plurality of touch electrodes and the ground when the touch electrode is not being touched; a determination circuitry connected to the detection circuitry, and configured to determine whether the touch electrode is an abnormal touch electrode in accordance with the initial capacitance and output a compensation control signal when the touch electrode is the abnormal touch electrode; and a compensation circuitry connected to the determination circuitry and configured to, upon the receipt of the compensation control signal, apply a compensation voltage to the abnormal touch electrode, so as to enable the initial capacitance of the capacitor formed between the abnormal touch electrode and the ground to be within a standard capacitance range.

    CURRENT COMPARISON CIRCUIT, DISPLAY DEVICE AND DRIVING METHOD THEREOF

    公开(公告)号:US20200005695A1

    公开(公告)日:2020-01-02

    申请号:US16096607

    申请日:2018-05-15

    Abstract: A current comparison circuit for use in a display device. The display device is configured to be supplied with a plurality of power supply voltages for powering a digital portion and an analog portion of the display device through respective power supplying paths. The current comparison circuit includes a plurality of comparator circuits, each of which is configured to compare a current on a respective one of the power supplying paths with a respective reference value and to output the respective comparison value. A combination of the respective comparison values output by the comparator circuits indicates a type of content being displayed by the display device.

    VOLTAGE CONTROL CIRCUIT AND METHOD, PANEL AND DISPLAY APPARATUS

    公开(公告)号:US20190179353A1

    公开(公告)日:2019-06-13

    申请号:US16176369

    申请日:2018-10-31

    Abstract: The present application provides a voltage control circuit and method, a panel and a display apparatus. The voltage control circuit includes: a comparison circuit configured to compare a first voltage with a second voltage, output a first signal in a case where a difference between the first voltage and the second voltage exceeds a thresholds range, and output a second signal in a case where the difference between the first voltage and the second voltage is within the thresholds range; a compensation circuit coupled to the comparison circuit, and configured to compensate the first voltage in response to the first signal output by the comparison circuit; and a latch circuit coupled to the comparison circuit and the compensation circuit, and configured to latch the first voltage in response to the second signal output by the comparison circuit.

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