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    Pixel circuit
    41.
    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
    42.
    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
    43.
    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
    48.
    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.

    Display device and driving circuit thereof for improving the accuracy of gamma tuning
    50.
    发明授权
    Display device and driving circuit thereof for improving the accuracy of gamma tuning 有权
    显示装置及其驱动电路，用于提高伽马调谐的精度

    公开(公告)号：US09460681B2

    公开(公告)日：2016-10-04

    申请号：US14550635

    申请日：2014-11-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Hyun-Sik Hwang ,  Joon-Chul Goh ,  Won-Sik Oh

    IPC: G09G3/36

    CPC classification number: G09G3/3688 ,  G09G3/3607 ,  G09G3/3614 ,  G09G2300/0443 ,  G09G2310/027 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0673

    Abstract: A display device and a driving circuit thereof are disclosed. In one aspect, the display device includes a display panel, a gamma reference voltage generator, a data driver and a driving controller. The display panel includes a plurality of pixels, each pixel including first and second sub-pixels. The gamma reference voltage generator generates one or more first gamma reference voltages each having a high gamma value greater than a reference gamma value, and one or more second gamma reference voltages each having a low gamma value less than the reference gamma value. The data driver generates a data voltage based at least in part on one or more of the first and second gamma reference voltages, and provides the data voltage to the first and second sub-pixels. The driving controller determines a gamma value and a data voltage output pattern according to a driving method of the display panel.

    Abstract translation: 公开了一种显示装置及其驱动电路。 一方面，显示装置包括显示面板，伽马参考电压发生器，数据驱动器和驱动控制器。 显示面板包括多个像素，每个像素包括第一和第二子像素。 伽马参考电压发生器产生每个具有大于参考伽马值的高伽马值的一个或多个第一伽马参考电压，以及每个具有小于参考伽马值的低伽马值的一个或多个第二伽马参考电压。 数据驱动器至少部分地基于第一和第二伽马参考电压中的一个或多个产生数据电压，并且将数据电压提供给第一和第二子像素。 驱动控制器根据显示面板的驱动方法来确定伽马值和数据电压输出模式。

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