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    Display device
    52.
    发明授权
    Display device 有权

    公开(公告)号：US11514855B2

    公开(公告)日：2022-11-29

    申请号：US17219729

    申请日：2021-03-31

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jaekeun Lim ,  Hongsoo Kim ,  Jinyoung Roh ,  Sehyuk Park ,  Hyojin Lee

    IPC: G09G3/3258

    Abstract: A display device includes a pixel, wherein the pixel includes a light emitting element, a first transistor connected to a first power line and the light emitting element and controlled by a voltage of a first node, a second transistor connected to a data line and the first transistor and controlled by an i-th scan signal, a third-first transistor connected to the first transistor and a second node and controlled by a first control signal, a third transistor connected to the second node and the first node and controlled by a second control signal, and a dummy transistor including a first electrode receiving a reference voltage, a second electrode connected to the second node, and a control electrode connected to an emission line.

    Display device and method of driving display device
    53.
    发明授权
    Display device and method of driving display device 有权

    公开(公告)号：US11468815B2

    公开(公告)日：2022-10-11

    申请号：US17548960

    申请日：2021-12-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hongsoo Kim ,  Jaekeun Lim ,  Jinyoung Roh ,  Hyojin Lee

    IPC: G09G3/20

    Abstract: A display device includes a display panel including a first display region and a second display region surrounding the first display region, where a first pixel having a first size is disposed in the first display region, and a second pixel having a second size is disposed in the second display region, a gate driver which applies a gate signal to a gate line, a data driver which applies a data voltage to a data line, and a timing controller which controls the gate driver and the data driver. The gate line includes a first gate line connected to both the first pixel and the second pixel, and a second gate line connected only to the second pixel. The data line includes a first data line which does not transmit the data voltage to the second pixel connected to the second gate line, and a second data line which transmits the data voltage to the second pixel connected to the second gate line.

    Display device and driving method of the same
    54.
    发明授权
    Display device and driving method of the same 有权

    公开(公告)号：US11455958B2

    公开(公告)日：2022-09-27

    申请号：US17347468

    申请日：2021-06-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hyojin Lee ,  Hui Nam ,  Jinyoung Roh ,  Bong Hyun You ,  Eunho Lee

    IPC: G09G3/3275

    Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.

    Display device and method of driving the same
    55.
    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.

    Display apparatus and method of driving display panel using the same
    56.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11348508B2

    公开(公告)日：2022-05-31

    申请号：US16989073

    申请日：2020-08-10

    Applicant: SAMSUNG DISPLAY CO., LTD.

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

    IPC: G09G3/20 ,  G09G3/3291

    Abstract: A display apparatus includes a display panel, a data driver and a driving controller. The display panel is configured to display an image based on input image data. The data driver is configured to output a data voltage to the display panel. The driving controller includes a frequency adjuster circuit configured to determine a driving frequency of the display panel, and a dithering circuit configured to change a grayscale value of the input image data according to frames. The frequency adjuster circuit is configured to determine the driving frequency of the display panel based on the input image data and based on whether the dithering part is activated.

    Display apparatus and method of driving display panel using the same
    57.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11263980B2

    公开(公告)日：2022-03-01

    申请号：US16669521

    申请日：2019-10-31

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Hyojin Lee ,  Jinyoung Roh

    IPC: G09G3/3291

    Abstract: A display apparatus including a display panel, a gate driver, a data driver, an emission driver, and a driving controller. The display panel includes a pixel including a switching element of a first type and a switching element of a second type. The driving controller determines a driving frequency of the switching element of the first type to be a first driving frequency and a driving frequency of the switching element of the second type to be a second driving frequency less than the first driving frequency in a low frequency driving mode. The driving controller determines the second driving frequency based on a difference of a luminance of a writing frame in which the data voltage is written in the pixel and a luminance of a holding frame in which the written data voltage in the pixel is maintained without writing the data voltage.

    Display apparatus and method of driving display panel using the same
    60.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11069295B2

    公开(公告)日：2021-07-20

    申请号：US16579476

    申请日：2019-09-23

    Applicant: Samsung Display Co., Ltd.

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

    IPC: G09G3/3258 ,  G09G3/3266 ,  G09G3/3291

    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver outputs a data write gate signal having a corresponding active level and a data initialization gate signal having a corresponding active level to the pixel in a writing frame, outputs the data write gate signal not having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a holding frame and outputs the data write gate signal having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a writing compensation frame. The data driver outputs a data voltage to the pixel. The emission driver outputs an emission signal to the pixel.

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