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    Driving controller, display apparatus including the same and method of driving display panel using the same
    33.
    发明授权
    Driving controller, display apparatus including the same and method of driving display panel using the same 有权

    公开(公告)号：US11756472B2

    公开(公告)日：2023-09-12

    申请号：US17952627

    申请日：2022-09-26

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Heesook Park

    IPC: G09G3/20

    CPC classification number: G09G3/2003 ,  G09G2310/027 ,  G09G2320/0626 ,  G09G2320/0673

    Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary gray scale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

    Electronic device with improved overcurrent protection reliability and method for driving the same
    36.
    发明授权
    Electronic device with improved overcurrent protection reliability and method for driving the same 有权

    公开(公告)号：US11501702B2

    公开(公告)日：2022-11-15

    申请号：US17335501

    申请日：2021-06-01

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wonjin Seo ,  Eunjin Choi ,  Kihyun Pyun

    IPC: G09G3/3208 ,  H01L27/32

    Abstract: An electronic device includes a display panel which includes a plurality of light emitting elements and in which a plurality of areas is defined based on the plurality of light emitting elements, a compensation unit which calculates compensation values for image data provided to each of the plurality of areas, and a control unit which controls the output of the image data provided to the display panel based on the compensation values and the image data, where the control unit may include a correction unit which outputs a correction ratio of each of the plurality of areas based on the compensation values and a comparison unit which determines whether an input current of the image data is in a normal range based on the correction ratio.

    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE PERFORMING A SENSING OPERATION, AND METHOD OF SENSING DEGRADATION OF AN ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE
    37.
    发明申请
    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE PERFORMING A SENSING OPERATION, AND METHOD OF SENSING DEGRADATION OF AN ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE 有权

    公开(公告)号：US20220013049A1

    公开(公告)日：2022-01-13

    申请号：US17211370

    申请日：2021-03-24

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kihyun Pyun ,  Siduk Sung

    IPC: G09G3/00 ,  G09G3/3283

    Abstract: An organic light-emitting diode (OLED) display device includes a display panel including a plurality of pixels, the plurality of pixels being grouped into a plurality of pixel blocks, a nonvolatile memory configured to store previous accumulated block degradation information for the plurality of pixel blocks up to a previous driving period, a controller configured to calculate current block degradation information for the plurality of pixel blocks in a current driving period, to calculate current accumulated block degradation information for the plurality of pixel blocks up to the current driving period by adding the current block degradation information to the previous accumulated block degradation information in response to a power control signal indicating a power-off, and to determine whether a sensing operation for each of the plurality of pixel blocks is to be performed by comparing the current accumulated block degradation information for each of the plurality of pixel blocks with a sensing reference degradation amount, and a sensing circuit configured to selectively perform the sensing operation for each of the plurality of pixel blocks.

    Driving controller, display apparatus including the same and method of driving display panel using the same
    38.
    发明授权
    Driving controller, display apparatus including the same and method of driving display panel using the same 有权

    公开(公告)号：US11170691B2

    公开(公告)日：2021-11-09

    申请号：US17149610

    申请日：2021-01-14

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Wonjin Seo ,  Eunjin Choi

    IPC: G09G3/20

    Abstract: A driving controller set includes a net power control setter, a data clamper, a data line, and a data driver. The net power control setter may determine a first scale factor for adjusting a grayscale value of (N+1)-th frame data based on a load of N-th frame data and a net power control reference value. N is an integer equal to or greater than two. The data clamper may determine a second scale factor for adjusting a grayscale value of the N-th frame data based on a load of (N−1)-th frame data and the N-th frame data. A data signal may be generated using the first scale factor and/or the second scale factor. The data line may include a conductive material. The data driver may convert the data signal into a data voltage and may output the data voltage to the data line.

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