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    Display apparatus and method of driving display panel using the same
    11.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US10937353B2

    公开(公告)日：2021-03-02

    申请号：US16546092

    申请日：2019-08-20

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kyunho Kim ,  Sangan Kwon ,  Neung-Beom Lee ,  Jun Pyo Lee ,  Sungjin Kim ,  Ukjae Jang

    IPC: G09G3/20

    Abstract: A display apparatus includes a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of subpixels, the subpixels being connected to the gate lines and the data lines, a driving controller configured to analyze input image data and to determine a driving mode from among one of a first driving mode and a second driving mode, a gate driver configured to output gate signals having timings different from one another to the gate lines in the first driving mode and to output gate signals having the same timing to at least two gate lines in the second driving mode, and a data driver configured to output data voltages to the data lines.

    Display device having varied driving frequency in the boundary region and driving method thereof
    12.
    发明授权
    Display device having varied driving frequency in the boundary region and driving method thereof 有权

    公开(公告)号：US11942043B2

    公开(公告)日：2024-03-26

    申请号：US17991197

    申请日：2022-11-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Changnoh Yoon ,  Soon-Dong Kim ,  Sangan Kwon ,  Seungjae Lee ,  Junheyung Jung

    IPC: G09G3/3275 ,  G09G3/3266

    CPC classification number: G09G3/3275 ,  G09G3/3266 ,  G09G2310/0278

    Abstract: Provided is a display device. The display device includes a display panel including a plurality of pixels respectively connected to a plurality of data lines and a plurality of scan lines, a data driving circuit configured to drive the plurality of data lines, a scan driving circuit configured to drive the plurality of scan lines, and a driving controller configured to divide the display panel into a first display region and a second display region during a multi-frequency mode, and control the data driving circuit and the scan driving circuit so as to drive the first display region at a first driving frequency and drive the second display region at a second driving frequency lower than the first driving frequency, wherein, during the multi-frequency mode, the driving controller sets a frequency for each of horizontal lines in a boundary region, which is adjacent to the first display region, in the second display region to a third driving frequency between the first driving frequency and the second driving frequency.

    Display apparatus and method of driving the same
    15.
    发明授权
    Display apparatus and method of driving the same 有权

    公开(公告)号：US11887523B2

    公开(公告)日：2024-01-30

    申请号：US16844887

    申请日：2020-04-09

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hyo Jin Lee ,  Sangan Kwon ,  Jinyoung Roh

    IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/3275

    CPC classification number: G09G3/2007 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2320/0247

    Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; and a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a driving mode of the display apparatus to one of a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data, wherein the driving controller is configured to determine the driving frequency of the display panel using a flicker value varied according to a grayscale value of the input image data and a luminance setting value.

    Display apparatus and method of driving the same
    16.
    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.

    Display apparatus and method of driving display panel using the same
    18.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11620952B2

    公开(公告)日：2023-04-04

    申请号：US17587325

    申请日：2022-01-28

    Applicant: Samsung Display Co., Ltd.

    Inventor： HongSoo Kim ,  Sangan Kwon ,  Jinyoung Roh ,  Sehyuk Park ,  Sukhun Lee ,  Hyojin Lee

    IPC: G09G3/3266 ,  G09G3/3275

    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel displays an image based on input image data. The gate driver outputs a gate signal to a gate line of the display panel. The data driver outputs a data voltage to a data line of the display panel. The driving controller controls operations of the gate driver and the data driver and drive a still image display area and a video image display area of a display area of the display panel in different driving frequencies. The driving controller includes a still image determiner which divides the input image data into a plurality of still image determining blocks, respectively determines whether the still image determining blocks represent a still image or a video image and determines a boundary between the still image display area and the video image display area.

    Display apparatus and method of driving display panel using the same
    19.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11462145B2

    公开(公告)日：2022-10-04

    申请号：US16992011

    申请日：2020-08-12

    Applicant: Samsung Display Co., Ltd.

    Inventor： Suk Hun Lee ,  Sangan Kwon ,  Hong Soo Kim ,  Jin Young Roh ,  Sehyuk Park ,  Hyo Jin Lee

    IPC: G09G3/20

    Abstract: A display apparatus includes a display panel displaying an image based on an input image data, a data driver outputting a data voltage to a data line, and a driving controller determining a driving frequency of the display panel based on the input image data. The driving controller includes a flicker value storage configured to store flicker values for grayscale values corresponding to the input image data, a voltage drop determiner configured to adjust a flicker value of the flicker values based on a voltage drop of the display panel, a still image determiner configured to determine whether the input image data is a still image or a video image, and a driving frequency determiner configured to determine the driving frequency of the display panel using the flicker value based on the input image data being the still image.

    Display device and method of driving the same
    20.
    发明授权
    Display device and method of driving the same 有权

    公开(公告)号：US11380269B2

    公开(公告)日：2022-07-05

    申请号：US17460553

    申请日：2021-08-30

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Hyo Jin Lee ,  Sangan Kwon ,  Hui Nam ,  Jinyoung Roh ,  Sehyuk Park

    IPC: G09G3/30 ,  G09G3/36 ,  G09G3/3291

    Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.

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