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    Pixel circuit
    42.
    发明授权
    Pixel circuit 有权

    公开(公告)号：US11094258B2

    公开(公告)日：2021-08-17

    申请号：US16932031

    申请日：2020-07-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Joon-Chul Goh ,  Sangan Kwon ,  Jinyoung Roh ,  Hyojin Lee

    IPC: G09G3/325 ,  G09G3/3275

    Abstract: A pixel circuit includes: a main circuit including: a driving transistor that includes a gate terminal connected to a first node, a first terminal connected to a second node, and a second terminal connected to a third node; and an organic light-emitting element connected to the driving transistor and configured to control the organic light-emitting element by controlling a driving current corresponding to a data signal applied via a data line to flow into the organic light-emitting element; and a sub circuit including: a first compensation transistor that includes a gate terminal configured to receive a first gate signal, a first terminal connected to the first node, and a second terminal connected to a fourth node; and a second compensation transistor that includes a gate terminal configured to receive a second gate signal, a first terminal connected to the fourth node, and a second terminal connected to the third node.

    Pixel circuit
    43.
    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 with frame masking driving scheme and electronic system including the same
    44.
    发明授权
    Display apparatus with frame masking driving scheme and electronic system including the same 有权

    公开(公告)号：US10964250B2

    公开(公告)日：2021-03-30

    申请号：US16420400

    申请日：2019-05-23

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Mun-San Park ,  Joon-Chul Goh ,  Woo-Mi Bae ,  Kyoung-Won Lee

    IPC: G09G5/10 ,  G09G3/20

    Abstract: A display apparatus includes a display panel and a timing controller. The timing controller generates first output image data based on input image data and sets a driving frequency of the display panel as a first frequency in a first operation mode. The timing controller converts the input image data into second output image data and sets the driving frequency of the display panel as a second frequency lower than the first frequency in a second operation mode. The display panel displays a first image based on the first frequency and the first output image data in the first operation mode. The first image is represented by X grayscales. The display panel displays a second image based on the second frequency and the second output image data in the second operation mode. The second image is represented by Y grayscales, where Y is less than X.

    Display device having security function
    49.
    发明授权
    Display device having security function 有权

    公开(公告)号：US09665739B2

    公开(公告)日：2017-05-30

    申请号：US14626558

    申请日：2015-02-19

    Applicant: Samsung Display Co., LTD.

    Inventor： Yun-Ki Baek ,  Ho-Seok Son ,  Joon-Chul Goh ,  Mun-San Park

    IPC: G06F21/00 ,  G06F21/84 ,  G06F21/44

    CPC classification number: G06F21/84 ,  G06F21/44

    Abstract: Display device includes timing controller, display panel, data driver, and scan driver. The timing controller includes an authentication processing unit configured to generate an authentication result based on an authentication control signal. The timing controller converts an input image data signal to data driver control signal and scan driver control signal when the authentication result represents success. The timing controller deactivates the data driver control signal and the scan driver control signal when the authentication result represents fail. The display panel includes plurality of pixels. The data driver generates plurality of data signals based on the data driver control signal and provides the data signals to the pixels through plurality of data signal lines. The scan driver generates plurality of scan signals based on the scan driver control signal and provides the scan signals to the pixels through plurality of scan signals lines.

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