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    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
    21.
    发明申请
    DISPLAY DEVICE AND METHOD OF DRIVING THE SAME 审中-公开

    公开(公告)号：US20190057631A1

    公开(公告)日：2019-02-21

    申请号：US16058225

    申请日：2018-08-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jaehoon Lee ,  Kyoungho Lim ,  Seokha Hong

    IPC: G09G3/00 ,  G09G3/36

    Abstract: A display device includes a pixel column including first to n-th pixels connected to a same data line and different gate lines from each other, a data driving chip which outputs a test data voltage in a test mode and outputs image data voltages in a normal mode, a sensing circuit which is electrically connected to the data line and the data driving chip in the test mode, senses a current output to the first pixel during a first period, and senses a current output to an i-th pixel during a second period, and a signal controller which compares a reference charge amount calculated based on the current sensed during the first period to a first charge amount calculated based on the current sensed during the second period and compensates for a level of an image data voltage applied to the i-th pixel among the image data voltages based on the compared result.

    DISPLAY DEVICE AND METHOD OF DRIVING DISPLAY DEVICE
    23.
    发明申请
    DISPLAY DEVICE AND METHOD OF DRIVING DISPLAY DEVICE 有权

    公开(公告)号：US20230040791A1

    公开(公告)日：2023-02-09

    申请号：US17882612

    申请日：2022-08-08

    Applicant: Samsung Display Co., LTD.

    Inventor： NAMJAE LIM ,  Sungjae Park ,  Seungho Park ,  Seunghwan Park ,  Jaehoon Lee ,  Jinho Lee ,  Youngwoon Choi

    IPC: G09G3/3291 ,  G09G3/3266

    Abstract: A display device includes a display panel, a luminance compensator, and a data driver. The display panel includes a plurality of pixels. The luminance compensator is configured to calculate a scaling factor based on a target current, a black image current, and a sensing current. The target current is calculated based on an input current input to the display panel. The sensing current is measured from the display panel. The data driver is configured to generate a data voltage based on input image data to supply the data voltage to the pixels. The data voltage has a voltage level adjusted based on the scaling factor.

    Display device and method for driving the same
    24.
    发明授权
    Display device and method for driving the same 有权

    公开(公告)号：US10431171B2

    公开(公告)日：2019-10-01

    申请号：US15665935

    申请日：2017-08-01

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Heendol Kim ,  Jaihyun Koh ,  Bonghyun You ,  Jaehoon Lee ,  Dongwon Park

    IPC: G09G3/36

    Abstract: A method includes applying a common voltage to a display panel, digitally converting a feedback common voltage from the display panel, detecting an effective ripple signal exceeding a reference value based on the digitally converted feedback common voltage, comparing a total number of effective ripple signals detected during a first frame period with a threshold value, determining whether the effective ripple signals of the first frame period are crosstalk inducing signals based on a comparison result, and determining whether to change a polarity pattern of image data signals to be applied to the display panel during a second frame period based on a determination result in terms of the crosstalk inducing signal.

    Apparatus and method of driving a variable rate display
    25.
    发明授权
    Apparatus and method of driving a variable rate display 有权

    公开(公告)号：US10360839B2

    公开(公告)日：2019-07-23

    申请号：US15812188

    申请日：2017-11-14

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Heendol Kim ,  Jai-Hyun Koh ,  Jaehoon Lee

    IPC: G09G3/20 ,  G06T1/20 ,  G06T1/60

    Abstract: A display apparatus includes a frame memory storing an input image signal having first and second reference blank durations respectively corresponding to a first frame and a second frame. A blank controller circuit determines a second delay blank duration based on the first and second reference blank durations and a first delay blank duration, a signal delay part generates an output image signal having the first and second delay blank durations corresponding to the first frame and second frame, respectively, is based on the stored input image signal, and a display panel displays an image based on the output image signal. The display apparatus may reduce or prevent flicker caused by variations in driving frequency that may be variable on a per-frame basis. A blank duration of a frame is controller, or a frame may be inserted in a blank duration based on blank durations of adjacent frames.

    Display apparatus and driving method of pixel
    28.
    发明授权
    Display apparatus and driving method of pixel 有权

    公开(公告)号：US12217684B2

    公开(公告)日：2025-02-04

    申请号：US18435919

    申请日：2024-02-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jaehoon Lee ,  Jihyun Ka ,  Seokje Seong ,  Joosun Yoon

    IPC: G09G3/3233

    Abstract: Provided are a pixel configured to receive a first initialization voltage during a first period between a writing period of a first scan period and a first emission period of a frame and to receive a second initialization voltage different from the first initialization voltage from a start time point of a second period before a second emission period of a second scan period subsequent to the first scan period, a display apparatus including the pixel, and a driving method of the display apparatus.

    Pixel of a display device, and display device
    29.
    发明授权
    Pixel of a display device, and display device 有权

    公开(公告)号：US11984063B2

    公开(公告)日：2024-05-14

    申请号：US17960470

    申请日：2022-10-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jaehoon Lee

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0278 ,  G09G2320/0233 ,  G09G2320/045

    Abstract: A pixel includes: a first transistor including a gate coupled to a first node, a first terminal, and a second terminal coupled to a second node; a first capacitor coupled between the first and second nodes; a second transistor including a gate receiving a first signal, a first terminal coupled to a data line, and a second terminal coupled to the first node; a third transistor including a gate receiving a second signal, a first terminal receiving a reference voltage, and a second terminal coupled to the first node; a fourth transistor including a gate receiving a third signal, a first terminal coupled to the second node, and a second terminal receiving an initialization voltage; a light emitting element including an anode; and a fifth transistor including a gate receiving a fourth signal, a first terminal coupled to the second node, and a second terminal coupled to the anode.

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