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    Display device and driving method thereof
    1.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US11727871B2

    公开(公告)日：2023-08-15

    申请号：US17361840

    申请日：2021-06-29

    Applicant: Samsung Display Co., Ltd.

    Inventor： Kihyun Pyun ,  Minyoung Park ,  Eunjin Choi

    IPC: G09G3/3233

    CPC classification number: G09G3/3233 ,  G09G2310/027 ,  G09G2320/0233 ,  G09G2320/0666

    Abstract: A display device includes a display panel which displays an image, a current compensator and a panel driver. The current compensator calculates a load based on input image data and compensates the input image data to output compensation image data having a target current corresponding to the load. The panel driver drives the display panel based on the compensation image data. The current compensator calculates the load for the input image data based on a combination of load weights calculated by different variables.

    Driving controller, display apparatus including the same and method of driving display panel using the same
    3.
    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：US11640783B2

    公开(公告)日：2023-05-02

    申请号：US17501998

    申请日：2021-10-14

    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.

    Screen saver controller, display device including the screen saver controller, and method of driving a display device including the screen saver controller
    4.
    发明授权
    Screen saver controller, display device including the screen saver controller, and method of driving a display device including the screen saver controller 有权

    公开(公告)号：US11557268B2

    公开(公告)日：2023-01-17

    申请号：US17457300

    申请日：2021-12-02

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Kihyun Pyun ,  Eunjin Choi

    IPC: G09G5/10

    Abstract: A screen saver controller includes a temperature calculator, a temperature comparator, an operator, and a screen saver data generator. The temperature calculator calculates temperature data of a display panel based on input image data. The temperature comparator receives the temperature data and a target temperature and compares a temperature of the display panel with the target temperature to generate temperature change data. The operator receives the temperature data and the temperature change data and generates operation data based on the temperature data and the temperature change data. The screen saver data generator receives the operation data and generates screen saver data based on the operation data. The screen saver controller adjusts a luminance of the display panel based on the screen saver data when operating in a first mode.

    Display device, method of driving display device, and electronic apparatus including display device
    5.
    发明授权
    Display device, method of driving display device, and electronic apparatus including display device 有权

    公开(公告)号：US12217677B2

    公开(公告)日：2025-02-04

    申请号：US18230668

    申请日：2023-08-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Eunjin Choi ,  Geonhwi Park ,  Jang-Mi Lee ,  Kihyun Pyun

    IPC: G09G3/3233 ,  G09G3/32

    Abstract: A display device includes a display panel displaying an image based on output image data, a voltage curve controller generating a converted peak luminance, a converted full white luminance, a converted peak grayscale, and a converted full white grayscale from a reference peak luminance and a reference full white luminance based on a gain mode and a gain value, and generating converted voltage curves including a first converted voltage curve from a first reference voltage curve based on the converted peak grayscale and the converted full white grayscale, and a driving voltage controller generating a driving voltage from the converted voltage curves based on a load and a maximum grayscale value of input image data. A voltage of the first converted voltage curve with respect to a peak grayscale is equal to a voltage of the first reference voltage curve with respect to the converted peak grayscale.

    Driving controller, display apparatus including the same and method of driving display panel using the same
    6.
    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：US11605338B2

    公开(公告)日：2023-03-14

    申请号：US17233260

    申请日：2021-04-16

    Applicant: Samsung Display Co., Ltd.

    Inventor： Eunjin Choi ,  Wonjin Seo ,  Kihyun Pyun

    IPC: G09G3/3208

    Abstract: A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.

    Electronic device with improved overcurrent protection reliability and method for driving the same
    10.
    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.

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