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    Display device and driving method thereof
    2.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11710449B2

    公开(公告)日：2023-07-25

    申请号：US17831272

    申请日：2022-06-02

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jin Pil Kim ,  Kang Hee Lee ,  Joon Chul Goh ,  Jae Sung Bae

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2320/0257 ,  G09G2320/0276

    Abstract: A display device includes an afterimage compensator generating output grayscales by applying at least one of first and second weights to input grayscales when the input grayscales correspond to a still image, and pixels displaying an image based on the output grayscales. The afterimage compensator applies the first weight having an initial value greater than 1 to the input grayscales of a first group, and converges the first weight to 1, and applies the second weight having initial values less than 1 to the input grayscales of a second group, and converges the second weights to 1.

    Display apparatus and display system
    3.
    发明授权
    Display apparatus and display system 有权

    公开(公告)号：US11355052B2

    公开(公告)日：2022-06-07

    申请号：US16700187

    申请日：2019-12-02

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae-Jong Jun ,  Jae Sung Bae ,  Sanghyun Lee ,  Daeki Park ,  Namjae Lim

    IPC: G09G3/20 ,  G09G5/14 ,  G06F3/14

    Abstract: A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, generates final image data by compensating the input image data to increase luminances of pixels disposed in at least one edge portion of the display panel among the plurality of pixels, and drives the display panel based on the final image data. The input image data for a pixel of the pixels is compensated based on a compensation constant determined according to a position of the pixel when the input image data for the pixel represents a gray level higher than or equal to a first reference gray level, and is compensated based on a reduced compensation constant that is reduced from the determined compensation constant when the input image data for the pixel represents the gray level lower than the first reference gray level.

    Display device supporting variable frame mode, and method of operating display device
    4.
    发明授权
    Display device supporting variable frame mode, and method of operating display device 有权

    公开(公告)号：US11043184B2

    公开(公告)日：2021-06-22

    申请号：US16523479

    申请日：2019-07-26

    Applicant: Samsung Display Co., Ltd.

    Inventor： Taehyeong An ,  Jai-Hyun Koh ,  Hoi Sik Moon ,  Jae Sung Bae ,  Namjae Lim ,  Nam-Gon Choi

    IPC: G09G5/00

    Abstract: A display device includes a display panel comprising a plurality of pixels, a data driver configured to generate data voltages based on a gamma reference voltage, and to provide the data voltages to the plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, and a controller configured to control the data driver and the gate driver. The controller is configured to initialize the gamma reference voltage when a blank period starts in a frame period comprising an active period and the blank period, and to change the gamma reference voltage when a duration of the blank period reaches at least one threshold time.

    Display apparatus and method of driving display panel using the same
    5.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US11302261B2

    公开(公告)日：2022-04-12

    申请号：US16833734

    申请日：2020-03-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jinpil Kim ,  Namjae Lim ,  Hoisik Moon ,  Jae Sung Bae

    IPC: G09G3/3275 ,  G09G3/36

    Abstract: A display apparatus includes a display panel, a driving controller and a data driver. The display panel is configured to display an image. The driving controller is configured to generate a compensated image data for compensating a decrease of a luminance of an edge portion of the display panel based on input image data. The data driver is configured to output a data voltage to the display panel based on the compensated image data. The driving controller is configured to generate the compensated image data by comparing a maximum value among subpixel grayscale values of the input image data to which a luminance compensating coefficient is applied and a maximum grayscale value of the input image data. The luminance compensating coefficient is configured to be determined according to a location in the display panel.

    Display device and degradation compensating method thereof
    8.
    发明授权
    Display device and degradation compensating method thereof 有权

    公开(公告)号：US12165556B2

    公开(公告)日：2024-12-10

    申请号：US17883848

    申请日：2022-08-09

    Applicant: Samsung Display Co., LTD.

    Inventor： Seok Ha Hong ,  Joon Chul Goh ,  Dong Joon Kwag ,  Hyung Jin Kim ,  Ji Eun Park ,  Jae Sung Bae ,  Young Soo Hwang

    IPC: G09G3/20

    Abstract: A display device includes a display part, a degradation compensator that generates a first compensated grayscale value by compensating for a first grayscale value corresponding to a first pixel, and generates a second compensated grayscale value by compensating for a second grayscale value corresponding to a second pixel, and a data driver that generates a first data signal based on the first compensated grayscale value to supply the first data signal to the first pixel, and generates a second data signal based on the second compensated grayscale value to supply the second data signal to the second pixel. A second degradation curve is defined by a first degradation coefficient corresponding to a first degradation curve, and a second degradation coefficient corresponding to a first estimated degradation curve for the light conversion particles of a second color calculated by applying the first degradation curve.

    Display apparatus and display system
    9.
    发明授权
    Display apparatus and display system 有权

    公开(公告)号：US11056067B2

    公开(公告)日：2021-07-06

    申请号：US16701913

    申请日：2019-12-03

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae-Jong Jun ,  Daeki Park ,  Namjae Lim ,  Jae Sung Bae ,  Sanghyun Lee

    IPC: G09G3/36 ,  G09G5/14

    Abstract: A display apparatus includes a display panel including a plurality of pixels, and a driver which receives input image data, divides a border portion of the display panel into edge regions and corner regions, generates final image data by compensating the input image data such that luminances of the edge regions are increased by a first multiplicative factor and luminances of the corner regions are increased by a second multiplicative factor greater than the first multiplicative factor, and drives the display panel based on the final image data.

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