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    Display device and driving method thereof
    11.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US10996504B2

    公开(公告)日：2021-05-04

    申请号：US16031429

    申请日：2018-07-10

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Se Hyuk Park ,  Hyo Jin Lee

    IPC: G09G3/32 ,  G02F1/1335 ,  G02F1/13357 ,  F21V8/00 ,  H01L25/075

    Abstract: A display device includes a first pixel including a first light emitting diode (“LED”) and a second LED having a color different from that of the first LED, a second pixel including a third LED having a same color as that of the first LED, a third pixel including a fourth LED having a same color as that of the first LED, and a color filter layer including a first color filter located on the first pixel, a second color filter that has a color different from a color of the first color filter and is located on the second pixel, and a third color filter that has a color different from the colors of the first and second color filters and is located on the third pixel.

    Pixel circuit
    12.
    发明授权
    Pixel circuit 有权

    公开(公告)号：US10977998B2

    公开(公告)日：2021-04-13

    申请号：US16943293

    申请日：2020-07-30

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyo Jin Lee ,  Joon-Chul Goh ,  Sangan Kwon ,  Hui Nam ,  Jin Young Roh ,  Sehyuk Park

    IPC: G09G3/3233 ,  G09G3/325 ,  G09G3/3275

    Abstract: A pixel circuit includes a main-circuit that controls an organic light-emitting element by controlling a driving current to flow into the organic light-emitting element and a sub-circuit including a first compensation transistor including a gate terminal which receives a first gate signal, a second compensation transistor including a gate terminal which receives a second gate signal, and an initialization transistor including a gate terminal which receives an initialization signal. Here, in a low-frequency driving mode, a driving frequency of the first gate signal is N hertz (Hz), a driving frequency of the initialization signal is N Hz, a driving frequency of the second gate signal is M Hz, the first compensation transistor and the initialization transistor are turned on during a first time duration in N non-light-emitting periods per second, and the second compensation transistor is turned on during a second time duration in M non-light-emitting periods per second.

    Display apparatus and method of driving display panel using the same
    13.
    发明授权
    Display apparatus and method of driving display panel using the same 有权

    公开(公告)号：US12014662B2

    公开(公告)日：2024-06-18

    申请号：US17397000

    申请日：2021-08-09

    Applicant: Samsung Display Co., Ltd.

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

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2310/0202 ,  G09G2310/0267 ,  G09G2310/027 ,  G09G2320/0247 ,  G09G2320/10 ,  G09G2330/023

    Abstract: A display apparatus includes a display panel, a gate driver, a data driver and a driving controller. The display panel including a gate line and a data line displays an image based on input image data. The gate driver outputs a gate signal to the gate line. The data driver outputs a data voltage to the data line. The driving controller includes an area divider dividing the input image data into first and second area data, a first variable frequency driver determining a first driving frequency of the first area data based on a flicker value according to a grayscale value and generating a first data signal of the first driving frequency and a second variable frequency driver determining a second driving frequency of the second area data based on a flicker value according to a grayscale value and generating a second data signal of the second driving frequency.

    Display device and method of driving display device
    20.
    发明授权
    Display device and method of driving display device 有权

    公开(公告)号：US11335234B1

    公开(公告)日：2022-05-17

    申请号：US17409865

    申请日：2021-08-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Se Hyuk Park ,  Jae Keun Lim ,  Hong Soo Kim ,  Jin Young Roh ,  Hyo Jin Lee

    IPC: G09G3/20

    Abstract: A display device according to an embodiment of the disclosure includes a timing controller, a scan driver including a plurality of stages connected to a plurality of clock signal lines and generating a plurality of scan signals in response to the scan start signal, a data driver configured to generate a plurality of data signals based on the image data, and a pixel portion including a plurality of pixels. One stage in the scan driver transmits a carry signal to 2n-th next stage. The timing controller selects any one of a normal frequency and low frequencies lower than the normal frequency as a driving frequency based on the input image data, and adjusts a clock duty of the plurality of clock signals so that a time required to output all of the plurality of scan signals during one frame is constant irrespective of the driving frequency.

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