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    DRIVING CIRCUIT OF A TOUCH DISPLAY PANEL FOR REDUCING PARASITIC CAPACITANCES
    11.
    发明申请
    DRIVING CIRCUIT OF A TOUCH DISPLAY PANEL FOR REDUCING PARASITIC CAPACITANCES 有权

    公开(公告)号：US20220187940A1

    公开(公告)日：2022-06-16

    申请号：US17686422

    申请日：2022-03-04

    Applicant: Novatek Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao ,  Liang-Chi Cheng

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

    Abstract: A driving circuit configured to drive a touch display panel is provided. The driving circuit includes a signal generating circuit and a sensor driving circuit. The signal generating circuit is configurable to be coupled to gate lines of the touch display panel via a gate control circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and provides the modulated first driving signal and the modulated second driving signal to the gate control circuit to drive the gate lines during a sensing period. The sensor driving circuit is configurable to be coupled to sensor pads of the touch display panel. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. A method for driving a touch display panel is also provided.

    Current driving digital pixel apparatus for micro light emitting device array
    13.
    发明授权
    Current driving digital pixel apparatus for micro light emitting device array 有权

    公开(公告)号：US11257419B2

    公开(公告)日：2022-02-22

    申请号：US16503651

    申请日：2019-07-05

    Applicant: Novatek Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao

    IPC: G09G3/32 ,  G09G3/20

    Abstract: A current driving digital pixel apparatus including a power rail, a common rail, a micro light emitting device, and a current driver is provided. The power rail is configured to supply a source current. The micro light emitting device is electrically coupled to the common rail. The current driver includes a first switching device electrically coupled to the power rail and a current mirror device electrically coupled between the first switching device and the micro light emitting device. The current mirror device receives the source current from the power rail through the first switching device and supplies a current to the micro light emitting device. The first switching device is a low voltage device and the current mirror device is a medium voltage device.

    Driving circuit and a method for driving a display panel having a touch panel
    15.
    发明授权
    Driving circuit and a method for driving a display panel having a touch panel 有权

    公开(公告)号：US10809855B2

    公开(公告)日：2020-10-20

    申请号：US15086073

    申请日：2016-03-31

    Applicant: Novatek Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao ,  Liang-Chi Cheng

    IPC: G06F3/044 ,  G06F3/041 ,  G09G3/20 ,  G09G3/36

    Abstract: A driving circuit configured to drive a display panel having a touch panel is provided. The driving circuit includes a signal generating circuit, a sensor driving circuit, and a source driving circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and drives the gate lines with the modulated first driving signal and the modulated second driving signal during a sensing period. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. The data lines are controlled to be electrically floating during the sensing period. In addition, a method for driving a display panel having a touch panel is also provided.

    DRIVING CIRCUIT AND A METHOD FOR DRIVING A DISPLAY PANEL HAVING A TOUCH PANEL
    16.
    发明申请
    DRIVING CIRCUIT AND A METHOD FOR DRIVING A DISPLAY PANEL HAVING A TOUCH PANEL 审中-公开
    驱动电路和驱动具有触控面板的显示面板的方法

    公开(公告)号：US20170052614A1

    公开(公告)日：2017-02-23

    申请号：US15086073

    申请日：2016-03-31

    Applicant: Novatek Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao ,  Liang-Chi Cheng

    IPC: G06F3/044 ,  G06F3/041

    Abstract: A driving circuit configured to drive a display panel having a touch panel is provided. The driving circuit includes a signal generating circuit, a sensor driving circuit, and a source driving circuit. The signal generating circuit modulates a plurality of voltage signals on a first driving signal and a second driving signal, and drives the gate lines with the modulated first driving signal and the modulated second driving signal during a sensing period. The sensor driving circuit modulates the voltage signals on a third driving signal, and drives the sensor pads with the modulated third driving signal during the sensing period. The data lines are controlled to be electrically floating during the sensing period. In addition, a method for driving a display panel having a touch panel is also provided.

    Abstract translation: 提供一种配置为驱动具有触摸面板的显示面板的驱动电路。 驱动电路包括信号发生电路，传感器驱动电路和源极驱动电路。 信号发生电路在第一驱动信号和第二驱动信号上调制多个电压信号，并且在感测周期期间用调制的第一驱动信号和调制的第二驱动信号来驱动栅极线。 传感器驱动电路对第三驱动信号的电压信号进行调制，并在感测期间以调制的第三驱动信号驱动传感器焊盘。 数据线在感测期间被控制为电浮动。 此外，还提供了一种用于驱动具有触摸面板的显示面板的方法。

    Pixel circuit of display panel
    17.
    发明公开
    Pixel circuit of display panel 审中-公开

    公开(公告)号：US20240161694A1

    公开(公告)日：2024-05-16

    申请号：US18244313

    申请日：2023-09-11

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao

    IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

    CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/08

    Abstract: A pixel circuit of a display panel includes a driving transistor, a first capacitor, a second capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor and a light emitting device. The driving transistor includes a first terminal, a second terminal and a gate terminal. The first capacitor is coupled to the gate terminal of the driving transistor. The second capacitor is connected to the first terminal of the driving transistor. The first transistor is coupled to the second terminal of the driving transistor. The second transistor is coupled to the second capacitor. The third transistor is coupled between the first terminal and the gate terminal of the driving transistor. The fourth transistor is coupled to the first terminal of the driving transistor. The fifth transistor is coupled to the driving transistor. The light emitting device is coupled to the fourth transistor.

    LED DRIVING APPARATUS FOR DRIVING AN LED ARRAY
    20.
    发明申请
    LED DRIVING APPARATUS FOR DRIVING AN LED ARRAY 有权

    公开(公告)号：US20210375196A1

    公开(公告)日：2021-12-02

    申请号：US17402646

    申请日：2021-08-16

    Applicant: Novatek Microelectronics Corp.

    Inventor： Sheng-Wen Hsiao

    IPC: G09G3/32

    Abstract: An LED driving apparatus for driving an LED array including a plurality of digital-to-analog converters and a plurality of data latch circuits is provided. Each of the digital-to-analog converters is coupled to a corresponding LED, and outputs a driving current according to n-bits pixel data to drive the corresponding LED. Each of the plurality of data latch circuits stores the n-bits pixel data, and is coupled to a corresponding digital-to-analog converter to control the n-bits pixel data to be written into the corresponding digital-to-analog converter. Each of digital-to-analog converters includes n sub-driving current generating circuits. Each of the n sub-driving current generating circuits generates a sub-driving current having a current value corresponding to a bit order of a bit of the n-bits pixel data. The driving current is generated by summing up n sub-driving currents.

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