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    Display device
    11.
    发明授权
    Display device 有权

    公开(公告)号：US11295662B2

    公开(公告)日：2022-04-05

    申请号：US17191588

    申请日：2021-03-03

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae-Hyeon Jeon ,  Yu-Chol Kim ,  Jihye Kim ,  Jin-Wook Yang ,  Donggyu Lee ,  Jakyoung Jin

    IPC: G09G3/3233 ,  G09G3/32

    Abstract: A display device includes a display panel including a pixel, a voltage line supplying a power voltage to the pixel, and a reference voltage line supplying one of a reference voltage and the power voltage to the pixel; a mode selector configured to output one of a first selection signal and a second selection signal according to an operation mode of the display panel; and a switch configured to provide the reference voltage or the power voltage to the reference voltage line in response to one of the first selection signal and the second selection signal.

    Pixel, display device including pixel, and pixel driving method
    13.
    发明授权
    Pixel, display device including pixel, and pixel driving method 有权

    公开(公告)号：US12008952B2

    公开(公告)日：2024-06-11

    申请号：US18224452

    申请日：2023-07-20

    Applicant: Samsung Display Co., LTD.

    Inventor： Jin-Wook Yang ,  Yu-Chol Kim ,  Donggyu Lee ,  Jae-Hyeon Jeon

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0216 ,  G09G2310/0267 ,  G09G2330/028

    Abstract: A pixel includes: a light-emitting element including an anode and a cathode, a first transistor including a first and a second electrode and a gate electrode connected with a first node, a third transistor connected between the second electrode of the first transistor and the first node and including a gate electrode connected with a first scan line, a sixth transistor connected between the second electrode of the first transistor and the anode and including a gate electrode connected with a first emission line, and a seventh transistor connected between the anode and an initialization voltage line and including a gate electrode connected with a second scan line. During an initialization period, the third, sixth, and seventh transistors are turned on such that an initialization voltage from the initialization voltage line is transferred to the gate electrode of the first transistor.

    Organic light emitting diode display device supporting a partial driving mode
    15.
    发明授权
    Organic light emitting diode display device supporting a partial driving mode 有权

    公开(公告)号：US10861397B2

    公开(公告)日：2020-12-08

    申请号：US16717795

    申请日：2019-12-17

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jae-Hyeon Jeon ,  Jihye Kim

    IPC: G09G3/3266 ,  G09G3/3275

    Abstract: An OLED display device includes a display panel including first and second partial panel regions, a scan driver configured to sequentially apply scan signals to the first and second partial panel regions in a normal driving mode, and to sequentially apply the scan signals to a driven one of the first and second partial panel regions in a partial driving mode, and a data driver configured to apply data signals to the first and second partial panel regions in the normal driving mode, and to apply the data signals to the driven one of the first and second partial panel regions in the partial driving mode. In the partial driving mode, the scan driver is configured to sequentially apply diode initialization signals to the driven one of the first and second partial panel regions, and to concurrently apply the diode initialization signals to a non-driven one of the first and second partial panel regions.

    PIXEL DRIVER AND DISPLAY DEVICE INCLUDING THE SAME
    16.
    发明申请
    PIXEL DRIVER AND DISPLAY DEVICE INCLUDING THE SAME 审中-公开

    公开(公告)号：US20200335037A1

    公开(公告)日：2020-10-22

    申请号：US16740022

    申请日：2020-01-10

    Applicant: SAMSUNG DISPLAY CO,, LTD.

    Inventor： WONTAE KIM ,  Jihye Kim ,  Jae-Hyeon Jeon

    IPC: G09G3/3225 ,  G09G3/3275 ,  G09G3/3266

    Abstract: A pixel driver includes a plurality of stages. Each of the plurality of stages includes a pixel driving signal generator configured to generate a pixel driving signal, a shift register configured to receive image data and the pixel driving signal and to generate an output control signal for determining whether to output the pixel driving signal based on the image data and the pixel driving signal, and a selection circuit configured to selectively output the pixel driving signal in response to the output control signal.

    Display device and driving method thereof
    17.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US12300153B2

    公开(公告)日：2025-05-13

    申请号：US18120627

    申请日：2023-03-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Sehyuk Park ,  Donggyu Lee ,  Jae-Hyeon Jeon ,  Jin-Wook Yang

    IPC: G09G3/32

    Abstract: A display device includes a display panel including a pixel which receives a luminance control voltage, a driving controller which receives an input image signal and a control signal and provides an output image signal to the display panel, and a voltage generator which generates the luminance control voltage in response to a voltage control signal from the driving controller. The driving controller determines a current operating frequency based on the control signal, and outputs the voltage control signal based on a difference value between the current operating frequency and a previous operating frequency and an operating time of the previous operating frequency when the current operating frequency is different from the previous operating frequency, where the luminance control voltage is changed from a first voltage level to a second voltage level based on the voltage control signal.

    Drive controller and electronic device including same
    19.
    发明授权
    Drive controller and electronic device including same 有权

    公开(公告)号：US12165594B2

    公开(公告)日：2024-12-10

    申请号：US18196659

    申请日：2023-05-12

    Applicant: Samsung Display Co., LTD.

    Inventor： Donggyu Lee ,  Hongsoo Kim ,  Sehyuk Park ,  Youngha Sohn ,  Jin-Wook Yang ,  Jae-Hyeon Jeon

    IPC: G09G3/3258 ,  G09G3/3233

    Abstract: An electronic device includes a display panel which includes a plurality of pixels and displays an image at each of multiple frames, a driving circuit which drives the multiple frames at multiple operating frequencies, a voltage generator which provides a voltage to the display panel, and a drive controller. The drive controller includes a representative frequency calculator which calculates a representative frequency, based on operating frequencies of ‘n’ number of frames before one frame of the multiple frames, and a compensating signal calculator which outputs a compensating signal, based on the representative frequency and a count number in the one frame. The drive controller transmits the compensating signal to the voltage generator, the voltage includes a reference voltage, the voltage generator generates the reference voltage based on the compensating signal, and the voltage generator provides the reference voltage to each of the plurality of pixels.

    Display device including a fifth transistor connected between the power line and the light emitting diode
    20.
    发明授权
    Display device including a fifth transistor connected between the power line and the light emitting diode 有权

    公开(公告)号：US12063830B2

    公开(公告)日：2024-08-13

    申请号：US18200646

    申请日：2023-05-23

    Applicant: Samsung Display Co., Ltd.

    Inventor： Donggyu Lee ,  Jihye Kim ,  Jin-Wook Yang ,  Jae-Hyeon Jeon

    IPC: H01L29/08 ,  H10K59/121 ,  H10K59/131

    CPC classification number: H10K59/131 ,  H10K59/1213 ,  H10K59/1216

    Abstract: A display device includes a display panel including a plurality of pixels. At least one of the pixel includes a light emitting diode, a first transistor connected between a power line receiving a power source voltage and an anode of the light emitting diode, a second transistor connected between a data line and a first reference node, a first capacitor connected between the power line and the first reference node, a second capacitor connected between the first reference node and a second reference node, a third transistor connected between the first refence node and a reference voltage line receiving a reference voltage, a fourth transistor connected between an initialization voltage line receiving an initialization voltage and a drain of the first transistor, and a fifth transistor connected between the drain of the first transistor and the anode of the light emitting diode.

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