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    Digital to Analog Converter and Source Driver Chip Thereof
    41.
    发明申请
    Digital to Analog Converter and Source Driver Chip Thereof 有权
    数模转换器和源驱动器芯片

    公开(公告)号：US20140009373A1

    公开(公告)日：2014-01-09

    申请号：US13736091

    申请日：2013-01-08

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Jhih-Siou Cheng ,  Ju-Lin Huang ,  Pang-Chan Hung

    IPC: G09G3/36

    CPC classification number: G09G3/36 ,  G09G3/3685 ,  G09G2310/027

    Abstract: A digital to analog converter for a source driver chip of a liquid crystal display device is disclosed. The digital to analog converter comprises an output terminal for outputting an output voltage, a plurality of receiving terminals for receiving a plurality of Gamma voltages, and a plurality of transmission paths comprising a plurality of first-type transistors coupled between the plurality of receiving terminals and the output terminal, respectively, for outputting one of the plurality of Gamma voltages as the output voltage according to a digital select signal; wherein a first transmission path corresponding to a first receiving terminal receiving a first Gamma voltage closest to a middle voltage among the plurality of Gamma voltages has lower on-resistance than other transmission paths among the plurality of transmission paths when a same source-to-gate voltage is applied.

    Abstract translation: 公开了一种用于液晶显示装置的源极驱动器芯片的数模转换器。 数模转换器包括用于输出输出电压的输出端子，用于接收多个伽马电压的多个接收端子以及耦合在多个接收端子之间的多个第一型晶体管的多个传输路径，以及多个传输路径 输出端子，用于根据数字选择信号输出多个伽马电压中的一个作为输出电压; 其中对应于接收第一接收端的第一传输路径，当多个伽马电压中的最接近中间电压的第一伽马电压具有相同的源极到栅极之间的多个传输路径中的其它传输路径的导通电阻较低 施加电压。

    CHIP PACKAGE
    42.
    发明申请
    CHIP PACKAGE 有权
    芯片包装

    公开(公告)号：US20140004725A1

    公开(公告)日：2014-01-02

    申请号：US13674903

    申请日：2012-11-12

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Jhih-Siou Cheng ,  Tzu-Chiang Lin ,  Chia-En Wu ,  Chun-Yung Cho ,  Cheng-Hung Chen ,  Ju-Lin Huang

    IPC: H01R12/51

    CPC classification number: H01L23/60 ,  H01L23/5389 ,  H01L24/17 ,  H01L25/0655 ,  H01L2224/16137 ,  H01L2224/16195 ,  H01L2924/0002 ,  H02H9/02 ,  H05K9/0067 ,  H01L2924/00

    Abstract: A chip package structure includes a package body, a first lead and a second lead. Elements embedded inside the package body include a core circuit having at least one first connection terminal, at least one ESD protection circuit having at least one second connection terminal, at least one third connection terminal and at least one interconnection structure. The interconnection structure is electrically connected to the second connection terminal and the third connection terminal. The first lead on the package body is electrically connected to the second connection terminal and an external circuit. The second lead on the package body electrically connects the first connection terminal and the third connection terminal. The second lead and the first lead are separate in structure.

    Abstract translation: 芯片封装结构包括封装体，第一引线和第二引线。 嵌入在封装体内的元件包括具有至少一个第一连接端子，至少一个ESD保护电路的至少一个第二连接端子，至少一个第三连接端子和至少一个互连结构的芯电路。 互连结构电连接到第二连接端子和第三连接端子。 封装主体上的第一引线电连接到第二连接端子和外部电路。 封装体上的第二引线电连接第一连接端子和第三连接端子。 第二个引线和第一个引线在结构上是分开的。

    Display apparatus and method for noise reduction
    45.
    发明授权
    Display apparatus and method for noise reduction 有权

    公开(公告)号：US11367390B2

    公开(公告)日：2022-06-21

    申请号：US16429049

    申请日：2019-06-02

    Applicant: Novatek Microelectronics Corp.

    Inventor： Keko-Chun Liang ,  Yu-Hsiang Wang ,  Jhih-Siou Cheng ,  Yi-Chuan Liu ,  Ju-Lin Huang

    IPC: G09G3/3233 ,  G09G3/3275

    Abstract: A display apparatus and a method for noise reduction are introduced. The method comprises steps of sensing a first pixel signal being superimposed by noises from a first pixel through a first sensing line in a first phase of a sensing operation and sensing a first noise signal from the first sensing line in a second phase of the sensing operation. The method further comprises steps of sensing a second noise signal from a second sensing line in the first phase of the sensing operation, and sensing a third noise signal from the second sensing line in the second phase of the sensing operation. The method further removes the noises that are superimposed to the first pixel signal according to a difference between the first pixel signal and the first noise signal and a difference between the second noise signal and the third noise signal to generate a denoised sensing value of the first pixel.

    Output circuit with ESD protection
    46.
    发明授权
    Output circuit with ESD protection 有权

    公开(公告)号：US11296500B2

    公开(公告)日：2022-04-05

    申请号：US16821947

    申请日：2020-03-17

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Jhih-Siou Cheng ,  Ju-Lin Huang ,  Chia-En Wu

    IPC: H02H9/04 ,  H01L27/02

    Abstract: The present invention provides an output circuit with electrostatic discharge (ESD) protection in a semiconductor chip of a source driver. The source driver is configured to drive a display panel. The output circuit includes an output buffer, an output pad, a switch and a first resistor. The switch is coupled between the output buffer and the output pad, wherein data voltages for driving the display panel are transmitted from the output buffer to the output pad via the switch. The switch includes a first metal oxide semiconductor (MOS) transistor, which includes a first terminal coupled to the output pad, a bulk terminal and a gate terminal. The first resistor is coupled between the bulk terminal of the first MOS transistor and a first power supply terminal.

    SOURCE DRIVER AND CALIBRATION METHOD THEREOF
    48.
    发明申请
    SOURCE DRIVER AND CALIBRATION METHOD THEREOF 有权

    公开(公告)号：US20210350731A1

    公开(公告)日：2021-11-11

    申请号：US16867483

    申请日：2020-05-05

    Applicant: Novatek Microelectronics Corp.

    Inventor： Yi-Yang Tsai ,  Po-Hsiang Fang ,  Jhih-Siou Cheng ,  Ju-Lin Huang

    IPC: G09G3/00 ,  G09G3/3291

    Abstract: A source driver and a calibration method thereof are provided. The source driver for driving and sensing a display panel of the disclosure includes a sensing circuit, an analog-to-digital converter circuit and a digital arithmetic circuit. The sensing circuit is configured to receive a reference signal through a sensing channel when the source driver is operated in a calibration mode. The analog-to-digital converter circuit is coupled to the sensing circuit, and configured to convert the reference signal to a digital reference signal. The digital arithmetic circuit is coupled to the analog-to-digital converter circuit, and configured to obtain a calibration parameter according to the digital reference signal. The source driver calibrates a sensing path for sensing a display panel according to the calibration parameter when the source driver is operated in a sensing mode.

    DISPLAY DEVICE AND DRIVER THEREOF
    49.
    发明申请
    DISPLAY DEVICE AND DRIVER THEREOF 有权

    公开(公告)号：US20210343232A1

    公开(公告)日：2021-11-04

    申请号：US17242807

    申请日：2021-04-28

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Yu-Sheng Ma ,  Jhih-Siou Cheng ,  Chun-Fu Lin ,  Jin-Yi Lin ,  Ju-Lin Huang

    IPC: G09G3/32

    Abstract: The present disclosure relates to a driver for driving a light emitting unit array of a display device, the driver including: a plurality of driving units, each of the plurality of driving units includes: a driving circuit configured to provide a driving current to a corresponding column of light emitting units in the light emitting unit array according to a pulse width modulation signal, during a turn-on period of a channel switch; a regulating circuit configured to be connected in parallel with the driving circuit and be turned on according to the pulse width modulation signal to form a path with the corresponding column of the light emitting units, such that a current associated with the light emitting units flows through the path.

    DISPLAY DRIVER AND DISPLAY DRIVING METHOD
    50.
    发明申请
    DISPLAY DRIVER AND DISPLAY DRIVING METHOD 有权

    公开(公告)号：US20210304675A1

    公开(公告)日：2021-09-30

    申请号：US16827713

    申请日：2020-03-24

    Applicant: Novatek Microelectronics Corp.

    Inventor： Jhih-Siou Cheng ,  Po-Hsiang Fang ,  Chieh-An Lin ,  Keko-Chun Liang ,  Ju-Lin Huang

    IPC: G09G3/3258

    Abstract: A display driver and a display driving method are provided. The display driving is adapted for driving a display panel and sensing an electrical characteristic of the display panel. The display driver includes a first amplifier circuit. The first amplifier circuit is coupled to the display panel. The first amplifier circuit includes a first driving circuit, a first sensing circuit and a first operational amplifier. The first operational amplifier is coupled to the display panel through a first driving line and a first sensing line. The first driving circuit is configured to provide a first driving signal to the display panel through the first operational amplifier and the first driving line during a driving period. The first sensing circuit is configured to receive a first sensing signal from the display panel through the first operational amplifier and the first sensing line during a first sensing period.

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