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    Source driver and driving system for driving LED panel, and display system
    1.
    发明授权
    Source driver and driving system for driving LED panel, and display system 有权

    公开(公告)号：US12062329B2

    公开(公告)日：2024-08-13

    申请号：US18139682

    申请日：2023-04-26

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Yu-Sheng Ma ,  Jhih-Siou Cheng ,  Chun-Fu Lin

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2300/06 ,  G09G2310/0202 ,  G09G2310/0272 ,  G09G2320/0233 ,  G09G2330/025

    Abstract: A source driver and a driving system for driving an LED panel, and an LED display system are provided. The driving system includes: a plurality of source drivers, for respectively supplying driving currents to channels of different portions on the LED panel, and each source driver includes: a plurality of driving circuits, which are in one-to-one correspondence with the plurality of channels on the LED panel, and are connected to a same current control line, each driving circuit being configured to supply a driving current to a corresponding channel, wherein, the supplied driving current is associated with a voltage on the current control line which the driving circuit is connected with. When one or more driving circuits switch between a non-driving state and a driving state, the driving current being supplied by the driving circuit(s) being in the driving state in the plurality of source drivers is compensated.

    LIGHT-EMITTING DIODE PANEL AND DRIVING DEVICE THEREOF
    3.
    发明公开
    LIGHT-EMITTING DIODE PANEL AND DRIVING DEVICE THEREOF 审中-公开

    公开(公告)号：US20240046856A1

    公开(公告)日：2024-02-08

    申请号：US18365247

    申请日：2023-08-04

    Applicant: Novatek Microelectronics Corp.

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

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0275 ,  G09G2310/0267 ,  G09G2310/0251 ,  G09G2330/04

    Abstract: A light-emitting diode (LED) panel and a driving device therefore is provided. The driving device includes a source driver and a scan driver. The source driver is coupled to a plurality of data lines disposed in the LED panel. The source driver outputs driving currents to the data lines in any one of a plurality of scan line periods, to drive an LED array of the LED panel. The scan driver is coupled to a plurality of scan lines disposed in the LED panel, wherein the scan driver scans the scan lines during the plurality of scan line periods. In an active period of any one of the scan line periods, the scan driver applies an enable voltage to a current scan line among the scan lines, and the scan driver applies a pre-charge voltage to other scan line among the scan lines.

    DISPLAY DEVICE AND DRIVER THEREOF
    4.
    发明公开
    DISPLAY DEVICE AND DRIVER THEREOF 审中-公开

    公开(公告)号：US20230306900A1

    公开(公告)日：2023-09-28

    申请号：US18205199

    申请日：2023-06-02

    Applicant: NOVATEK MICROELECTRONICS CORP.

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

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2320/064 ,  G09G2330/021

    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 charge path circuit configured to be connected in parallel with the driving circuit, and to be turned on during the turn-on period of the channel switch to form a charge path; and a discharge path circuit configured to be connected in parallel with the driving circuit, and to be turned-on after the channel switch is turned off, to form a discharge path.

    Source driver and driving circuit thereof
    5.
    发明授权
    Source driver and driving circuit thereof 有权

    公开(公告)号：US11217152B1

    公开(公告)日：2022-01-04

    申请号：US17111449

    申请日：2020-12-03

    Applicant: NOVATEK Microelectronics Corp.

    Inventor： Yu-Sheng Ma ,  Jhih-Siou Cheng ,  Chun-Fu Lin ,  Tso-Sheng Chan ,  Ren-Chieh Yang

    IPC: G09G3/32

    Abstract: The present invention provides a source driver for driving a light emitting diode panel. The source driver includes a buffer including an output terminal; and a plurality of driving circuits coupled to the buffer. Each of the plurality of driving circuits includes a constant current transistor including a gate controlled by a node voltage of the output terminal of the buffer; and a compensation unit for compensating the node voltage of the output terminal of the buffer.

    Light-emitting diode panel and driving device thereof
    6.
    发明授权
    Light-emitting diode panel and driving device thereof 有权

    公开(公告)号：US12243472B2

    公开(公告)日：2025-03-04

    申请号：US18365247

    申请日：2023-08-04

    Applicant: Novatek Microelectronics Corp.

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

    IPC: G09G3/32

    Abstract: A light-emitting diode (LED) panel and a driving device therefore is provided. The driving device includes a source driver and a scan driver. The source driver is coupled to a plurality of data lines disposed in the LED panel. The source driver outputs driving currents to the data lines in any one of a plurality of scan line periods, to drive an LED array of the LED panel. The scan driver is coupled to a plurality of scan lines disposed in the LED panel, wherein the scan driver scans the scan lines during the plurality of scan line periods. In an active period of any one of the scan line periods, the scan driver applies an enable voltage to a current scan line among the scan lines, and the scan driver applies a pre-charge voltage to other scan line among the scan lines.

    Display device and driver thereof
    7.
    发明授权
    Display device and driver thereof 有权

    公开(公告)号：US12190793B2

    公开(公告)日：2025-01-07

    申请号：US18205199

    申请日：2023-06-02

    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 charge path circuit configured to be connected in parallel with the driving circuit, and to be turned on during the turn-on period of the channel switch to form a charge path; and a discharge path circuit configured to be connected in parallel with the driving circuit, and to be turned-on after the channel switch is turned off, to form a discharge path.

    SOURCE DRIVER AND DRIVING SYSTEM FOR DRIVING LED PANEL, AND DISPLAY SYSTEM
    8.
    发明公开
    SOURCE DRIVER AND DRIVING SYSTEM FOR DRIVING LED PANEL, AND DISPLAY SYSTEM 审中-公开

    公开(公告)号：US20230351948A1

    公开(公告)日：2023-11-02

    申请号：US18139682

    申请日：2023-04-26

    Applicant: NOVATEK MICROELECTRONICS CORP.

    Inventor： Yu-Sheng Ma ,  Jhih-Siou Cheng ,  Chun-Fu Lin

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0272 ,  G09G2310/0202 ,  G09G2320/0233 ,  G09G2330/025 ,  G09G2300/06

    Abstract: A source driver and a driving system for driving an LED panel, and an LED display system are provided. The driving system includes: a plurality of source drivers, for respectively supplying driving currents to channels of different portions on the LED panel, and each source driver includes: a plurality of driving circuits, which are in one-to-one correspondence with the plurality of channels on the LED panel, and are connected to a same current control line, each driving circuit being configured to supply a driving current to a corresponding channel, wherein, the supplied driving current is associated with a voltage on the current control line which the driving circuit is connected with. When one or more driving circuits switch between a non-driving state and a driving state, the driving current being supplied by the driving circuit(s) being in the driving state in the plurality of source drivers is compensated.

    Method of controlling display panel and control circuit using the same
    9.
    发明授权
    Method of controlling display panel and control circuit using the same 有权

    公开(公告)号：US11557249B2

    公开(公告)日：2023-01-17

    申请号：US17169519

    申请日：2021-02-07

    Applicant: NOVATEK Microelectronics Corp.

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

    IPC: G09G3/3216 ,  G09G3/3266

    Abstract: The present invention provides a method of controlling a display panel. The display panel includes a plurality of subpixels and a plurality of scan lines coupled to the plurality of subpixels. The method includes steps of: scanning a first scan line among the plurality of scan lines to turn on at least one of the plurality of subpixels coupled to the first scan line during a subframe period among a display frame period; and discharging a second scan line among the plurality of scan lines during a non-display period following the subframe period. Wherein, the second scan line is different from the first scan line.

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