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    Source driver
    1.
    发明授权
    Source driver 有权

    公开(公告)号：US10964280B2

    公开(公告)日：2021-03-30

    申请号：US16290967

    申请日：2019-03-04

    Applicant: Novatek Microelectronics Corp.

    Inventor： Cheng-Tsu Hsieh ,  Ching-Wen Hou

    IPC: G09G3/36 ,  G02F1/133

    Abstract: A source driver including a first output buffer, a second output buffer and a plurality of switches is provided. The first output buffer is connected to an output line. The second output buffer is connected to another output line. During a charge-sharing period, the first switch and the fourth switch are not conducted, and the second switch, the third switch, the fifth switch and the sixth switch are conducted. A first node, a second node and the output lines are connected together to perform a charge-sharing operation during the charge-sharing period. Based on the circuit structure of the source driver, the efficiency of the charge-sharing operation is improved and the chip area of the source driver is reduced.

    Electronic device and display driver chip
    2.
    发明授权
    Electronic device and display driver chip 有权

    公开(公告)号：US11176861B2

    公开(公告)日：2021-11-16

    申请号：US17088600

    申请日：2020-11-04

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Syang-Yun Tzeng ,  Cheng-Tsu Hsieh ,  Ching-Wen Hou ,  Ying-Hsiang Wang ,  Ping Chen

    IPC: G09G3/00

    Abstract: An electronic device includes a substrate and a display driver chip bonded on the substrate. The display driver chip includes a plurality of operational amplifiers, and each of the operational amplifiers has a first stage and a second stage. The first stage includes a first power input terminal. The second stage includes a first power input terminal and an output terminal for outputting an output voltage. The first power input terminal of the first stage is connected to a first metal trace of the substrate, and the first power input terminal of the second stage is connected to a second metal trace of the substrate. The first power input terminal of the first stage and the first power input terminal of the second stage are both provided with a first voltage level.

    LIQUID CRYSTAL DISPLAY APPARATUS, SOURCE DRIVER AND METHOD FOR CONTROLLING POLARITY OF DRIVING SIGNALS THEREOF
    4.
    发明申请
    LIQUID CRYSTAL DISPLAY APPARATUS, SOURCE DRIVER AND METHOD FOR CONTROLLING POLARITY OF DRIVING SIGNALS THEREOF 有权
    液晶显示装置，源驱动器及其控制驱动信号极性的方法

    公开(公告)号：US20160203779A1

    公开(公告)日：2016-07-14

    申请号：US14716890

    申请日：2015-05-20

    Applicant: Novatek Microelectronics Corp.

    Inventor： Ching-Wen Hou ,  Shun-Hsun Yang ,  Tse-Hung Wu

    IPC: G09G3/36

    CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2370/08 ,  G09G2370/14

    Abstract: A liquid crystal display apparatus, a source driver, and a method for controlling polarity of driving signals thereof are provided. The source driver includes a signal receiving interface, a decoder, and a controller. The signal receiving interface receives an image data stream or a data input/output indication signal. The decoder obtains polarity controlling information from the image data stream or the data input/output indication signal. The controller receives the polarity controlling information and decides driving polarities of a plurality of source driving signals generated by the source driver according to the polarity controlling information.

    Abstract translation: 提供一种用于控制其驱动信号的极性的液晶显示装置，源极驱动器和方法。 源驱动器包括信号接收接口，解码器和控制器。 信号接收接口接收图像数据流或数据输入/输出指示信号。 解码器从图像数据流或数据输入/输出指示信号获得极性控制信息。 控制器接收极性控制信息，并根据极性控制信息确定由源极驱动器产生的多个源极驱动信号的驱动极性。

    SOURCE DRIVER
    7.
    发明申请
    SOURCE DRIVER 审中-公开

    公开(公告)号：US20200286438A1

    公开(公告)日：2020-09-10

    申请号：US16290967

    申请日：2019-03-04

    Applicant: Novatek Microelectronics Corp.

    Inventor： Cheng-Tsu Hsieh ,  Ching-Wen Hou

    IPC: G09G3/36 ,  G02F1/133

    Abstract: A source driver including a first output buffer, a second output buffer and a plurality of switches is provided. The first output buffer is connected to an output line. The second output buffer is connected to another output line. During a charge-sharing period, the first switch and the fourth switch are not conducted, and the second switch, the third switch, the fifth switch and the sixth switch are conducted. A first node, a second node and the output lines are connected together to perform a charge-sharing operation during the charge-sharing period. Based on the circuit structure of the source driver, the efficiency of the charge-sharing operation is improved and the chip area of the source driver is reduced.

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