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    Gate driving circuit and display device including the same
    1.
    发明授权
    Gate driving circuit and display device including the same 有权

    公开(公告)号：US11636821B2

    公开(公告)日：2023-04-25

    申请号：US17170720

    申请日：2021-02-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Seung-Woon Shin ,  Woon-Rok Jang ,  In-Won Jin

    IPC: G09G3/36

    Abstract: A gate driving circuit includes: a plurality of driving stages, each driving stage configured to provide a gate signal to a corresponding gate line among a plurality of gate lines, wherein each of the plurality of driving stages includes: a first transistor electrically connected between a first clock terminal and a gate output terminal, the first transistor including a gate electrode electrically connected to a first node, the first clock terminal to receive a first clock signal; a second transistor configured to transmit a first carry signal to the first node; and a third transistor electrically connected between the first node and a first voltage terminal, the third transistor including a gate electrode electrically connected to the first voltage terminal, the first voltage terminal to receive a first voltage, wherein the gate output terminal is electrically connected to the corresponding gate line.

    Pixel and display apparatus having the same
    2.
    发明授权
    Pixel and display apparatus having the same 有权

    公开(公告)号：US11640791B2

    公开(公告)日：2023-05-02

    申请号：US17665853

    申请日：2022-02-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Sung-Jae Park ,  Seung-Woon Shin ,  Woon-Rok Jang

    IPC: G09G3/3233

    Abstract: A pixel includes a capacitor including a first electrode and a second electrode, a first transistor which generates a driving current, a second transistor which applies a data voltage to the first electrode of the capacitor, a third transistor which applies an initialization voltage to the second electrode of the capacitor, a fourth transistor which generates a leakage current in response to a dimming signal, and a light emitting element which emits light based on a residual driving current, where the residual driving current is obtained by subtracting the leakage current from the driving current.

    Display device
    3.
    发明授权
    Display device 有权

    公开(公告)号：US11415831B2

    公开(公告)日：2022-08-16

    申请号：US16896148

    申请日：2020-06-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seung-Woon Shin ,  Jongwoon Kim ,  Kyu-Jin Park ,  Woon-Rok Jang ,  Tae-Seok Ha

    IPC: G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  G02F1/1362 ,  G02F1/1335

    Abstract: A display device may include a backlight unit, a display panel, and a backlight driver, and a panel driver. The backlight unit may include light source blocks including a first light source block. The display panel may include dimming regions including a first dimming region and respectively overlapping the light source blocks. The first dimming region may overlap the first light source block. The backlight driver may control a turn-on period and a turn-off period of each of the light source blocks. The panel driver may sequentially provide scan signals to the dimming regions for controlling light transmission of the dimming regions. A turn-off period of the first light source block may start before a scan period of the first dimming region and may end after the scan period of the first dimming region. The first dimming region may receive corresponding scan signals in the scan period.

    Display device and method of operating the same
    6.
    发明授权
    Display device and method of operating the same 有权

    公开(公告)号：US11263989B2

    公开(公告)日：2022-03-01

    申请号：US17101355

    申请日：2020-11-23

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seung-Woon Shin ,  Sang Won Kim ,  Jong Woon Kim ,  Kyu-Jin Park ,  Woon-Rok Jang ,  Tae-Seok Ha

    IPC: G09G3/36

    Abstract: A display device includes a display panel, a data driver, a gate driver, and a controller. The display panel includes a plurality of pixels. The data driver provides data voltages to the plurality of pixels through data lines during an active period of a frame period and provides a blank voltage to the plurality of pixels through the data lines during a blank period of the frame period. The gate driver provides a gate-on voltage to the plurality of pixels through gate lines during the active period and provides a gate-off voltage to the plurality of pixels through the gate lines during the blank period. The controller controls the data driver and the gate driver. The blank voltage increases and the gate-off voltage increases, when a time in the blank period reaches a predetermined time.

    Pixel circuit, display apparatus including the same and method of driving the same
    8.
    发明授权
    Pixel circuit, display apparatus including the same and method of driving the same 有权

    公开(公告)号：US11727835B2

    公开(公告)日：2023-08-15

    申请号：US17568289

    申请日：2022-01-04

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae-Seok Ha ,  Kyoungsoo Kim ,  Kyu-Jin Park ,  Sung-Jae Park ,  Seung-Woon Shin ,  Ho Lee ,  Woon-Rok Jang

    IPC: G09G3/00

    CPC classification number: G09G3/006 ,  G09G2310/0275 ,  G09G2330/028

    Abstract: A pixel circuit includes a light emitting element including a first electrode and a second electrode, a first switching element including a control electrode, a second switching element, a third switching element, a sensing resistor and a fourth switching element. The first switching element applies a first power voltage to the first electrode of the light emitting element. The second switching element applies a data voltage to the control electrode of the first switching element. The third switching element senses a signal of the first electrode of the light emitting element. The sensing resistor includes a first end connected to the second electrode of the light emitting element and a second end which receives a second power voltage. The fourth switching element senses a signal of the second electrode of the light emitting element.

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