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    Pixel, display device including pixel, and pixel driving method
    2.
    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.

    Pixel, driver and display device having the same
    4.
    发明授权
    Pixel, driver and display device having the same 有权

    公开(公告)号：US12033566B2

    公开(公告)日：2024-07-09

    申请号：US18127341

    申请日：2023-03-28

    Applicant: Samsung Display Co., Ltd.

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

    IPC: G09G3/32

    CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08

    Abstract: A display device includes: a pixel electrically connected to a data line, a write scan line, an initialization scan line, a compensation scan line, a transmission control line, and an emission control line; a first driving circuit configured to provide a write scan signal to the write scan line and a second driving circuit configured to receive a plurality of clock signals, each of which has a time duration of one unit horizontal period and provide an initialization scan signal, a compensation scan signal, a transmission control signal, and an emission control signal to the initialization scan line, the compensation scan line, the transmission control line, and the emission control line, respectively. Each of the initialization scan signal and the compensation scan signal has an activation interval of one unit horizontal periods or more.

    Display device
    5.
    发明授权
    Display device 有权

    公开(公告)号：US11972730B2

    公开(公告)日：2024-04-30

    申请号：US18126650

    申请日：2023-03-27

    Applicant: Samsung Display Co., Ltd.

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

    IPC: G09G5/00 ,  G09G3/3233

    CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0264 ,  G09G2310/08 ,  G09G2330/021

    Abstract: A display device includes: a display panel and a panel driver for driving the display panel during a plurality of driving frames whose frequencies are varied. Among the driving frames, a first driving frame having a first frequency includes a first write period, and a second driving frame having a second frequency lower than the first frequency includes a second write period and a variable blank period. The panel driver includes a data driver and a driving controller. Each of the first and second write periods includes N horizontal periods (N is an integer number equal to or greater than 1), each of the N horizontal periods has a first duration, and each of the first and second write periods has a second duration corresponding to N times of the first duration. The driving controller applies a training synchronizing signal to the data driver during the variable blank period.

    Display device and driving method thereof
    7.
    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
    9.
    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
    10.
    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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