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    Display apparatus and method of driving display panel of the same
    22.
    发明授权
    Display apparatus and method of driving display panel of the same 有权

    公开(公告)号：US11475838B2

    公开(公告)日：2022-10-18

    申请号：US17328392

    申请日：2021-05-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Soon-Dong Kim ,  Sangan Kwon ,  Taehoon Kim ,  Hui Nam ,  Junheyung Jung

    IPC: G09G3/3233 ,  G09G5/14 ,  G09G3/3266

    Abstract: A display apparatus includes a display panel including a pixel to display an image based on input image data, a driving controller which determines a driving frequency of a first display area of the display panel to be a first driving frequency and determines a driving frequency of a second display area of the display panel to be a second driving frequency less than the first driving frequency when the first display area displays a moving image and the second display area of the display panel displays a still image, and an emission driver which outputs a moving image emission signal corresponding to the first driving frequency and a still image emission signal corresponding to the second driving frequency to the display panel. A width of a non-emission period of the still image emission signal is greater than a width of a non-emission period of the moving image emission signal.

    Scan driver and display device having the same
    23.
    发明授权
    Scan driver and display device having the same 有权

    公开(公告)号：US11423843B2

    公开(公告)日：2022-08-23

    申请号：US17342585

    申请日：2021-06-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Taehoon Kim ,  Sangan Kwon ,  Soon-Dong Kim ,  Hui Nam ,  Bonghyun You ,  Changnoh Yoon ,  Jaekeun Lim

    IPC: G09G3/3266 ,  G09G3/3225

    Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.

    Display device
    24.
    发明授权
    Display device 有权

    公开(公告)号：US11367400B2

    公开(公告)日：2022-06-21

    申请号：US17217373

    申请日：2021-03-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： Taehoon Kim ,  Soon-Dong Kim ,  Changnoh Yoon ,  Sangan Kwon ,  Eun Sil Yun

    IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/3233

    Abstract: A display device includes a display panel including a first image unit and a second image unit, a data driver which applies data voltages to the display panel, a first scan driver which applies write scan signals to the display panel, a second scan driver which applies compensation scan signals and initialization scan signals to the display panel, and a masking part connected to the second scan driver and which selectively applies the initialization scan signals to the second image unit.

    Display apparatus and method of driving the same
    28.
    发明授权
    Display apparatus and method of driving the same 有权

    公开(公告)号：US11869400B2

    公开(公告)日：2024-01-09

    申请号：US17566385

    申请日：2021-12-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sangan Kwon ,  Soon-Dong Kim ,  Taehoon Kim ,  Eun Sil Yun ,  Changnoh Yoon

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2300/0842 ,  G09G2310/027 ,  G09G2310/0267 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2340/0435

    Abstract: A display apparatus is disclosed that comprises a display panel. The display panel includes a display region that includes a first display area and a second display area. A data driver is configured to provide a data voltage to the display region. A gate driver is configured to provide a compensation gate signal and an initialization gate signal to the display region. The gate driver includes a first stage and a second stage. A driving controller is configured to control the gate driver and the data driver. The driving controller is configured to determine a first driving frequency for the first display area and a second driving frequency for the second display area. The second stage is configured to provide the compensation gate signal having a pulse duration shorter than a pulse duration of the compensation gate signal provided to the display region by the first stage.

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