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    DATA DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME
    1.
    发明申请
    DATA DRIVING CIRCUIT AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220215805A1

    公开(公告)日：2022-07-07

    申请号：US17467482

    申请日：2021-09-07

    Applicant: Samsung Display Co., Ltd.

    Inventor： Tae Gon IM ,  Jong Jae LEE ,  Jun Pyo LEE ,  Byung Kil JEON ,  Won Hee LEE

    IPC: G09G3/3275 ,  G09G5/00

    Abstract: A display device includes a display panel having pixels. A timing controller generates a first control signal and data control signals. Data driving circuits each recover a data signal from a corresponding data control signal of the data control signals in response to the first control signal, generate a data voltage corresponding to the data signal, and provide the data voltage to the display panel. Each of the data driving circuits includes: a setting unit configured to acquire a setting value from the data control signal; an equalizer configured to compensate for distortion of the corresponding data control signal according to the setting value to output compensated data control signal; and a recoverer configured to recover a clock signal from the compensated data control signal and recover the data signal from the compensated data control signal based on the clock signal.

    DISPLAY DEVICE
    2.
    发明公开
    DISPLAY DEVICE 审中-公开

    公开(公告)号：US20230386393A1

    公开(公告)日：2023-11-30

    申请号：US18103542

    申请日：2023-01-31

    Applicant: Samsung Display Co., LTD.

    Inventor： Soo Yeon KIM ,  Tae Gon IM ,  Jong Jae LEE

    IPC: G09G3/32 ,  G09G3/3266

    CPC classification number: G09G3/32 ,  G09G3/3266 ,  G09G2310/0267 ,  G09G2310/061

    Abstract: A display device includes a pixel electrically connected to a first gate line and a second gate line and disposed in a first row, a pixel electrically connected to the second gate line and a reset line and disposed in a second row after the first row, a pixel electrically connected to a third gate line and a fourth gate line and disposed in a third row after the second row, and a gate driver supplying first to fourth gate signals to the first to fourth gate lines and supplying a reset signal to the reset line. The gate driver supplies the reset signal and the third gate signal of a same timing during an active period, and supplies the reset signal having a high level and the third gate signal having a low level during a rest period.

    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE SAME
    3.
    发明申请
    DATA DRIVER AND DISPLAY DEVICE INCLUDING THE SAME 有权

    公开(公告)号：US20220415261A1

    公开(公告)日：2022-12-29

    申请号：US17741766

    申请日：2022-05-11

    Applicant: Samsung Display Co., LTD.

    Inventor： Soo Yeon KIM ,  Tae Gon IM ,  Jong Jae LEE ,  Dae Gwang JANG

    IPC: G09G3/3275

    Abstract: A display device includes a display panel including data lines and pixels electrically connected to the data lines. The data driver supplies data signals to the data lines. The data driver includes: a first output buffer electrically connected to a first data line of the data lines, the first output buffer outputting a first data signal to the first data line; and a first comparator electrically connected to an output terminal of the first output buffer, the first comparator comparing a first slew rate of the first data signal with a first reference slew rate.

    DISPLAY DEVICE
    4.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20220383802A1

    公开(公告)日：2022-12-01

    申请号：US17739807

    申请日：2022-05-09

    Applicant: Samsung Display Co., LTD.

    Inventor： Soo Yeon KIM ,  Tae Gon IM ,  Jong Jae LEE ,  Dae Gwang JANG

    IPC: G09G3/32

    Abstract: A display device includes pixels; a sensing block generating first sensing data during a first sensing period, and generating second sensing data and third sensing data during a second sensing period; and a timing controller compensating first image data with second image data based on the first sensing data, the second sensing data, and the third sensing data. The sensing block generates the first sensing data corresponding to an initial channel voltage applied to each of sensing channels and at least one auxiliary sensing channel during the first sensing period, generates the second sensing data by sensing characteristic information of the pixels corresponding to an initialization voltage applied to the pixels during the second sensing period, and generates the third sensing data corresponding to a reference voltage applied to the at least one auxiliary sensing channel during the second sensing period.

    DISPLAY DEVICE HAVING POWER MANAGEMENT CIRCUIT
    5.
    发明申请
    DISPLAY DEVICE HAVING POWER MANAGEMENT CIRCUIT 有权

    公开(公告)号：US20210118391A1

    公开(公告)日：2021-04-22

    申请号：US16857106

    申请日：2020-04-23

    Applicant: Samsung Display Co., Ltd.

    Inventor： Gwangsoo AHN ,  Dae-Sik LEE ,  Jong Jae LEE

    IPC: G09G3/36

    Abstract: A power management circuit of a display device includes a voltage information storage comprising a first and second bank storing first and second voltage information corresponding to first and second voltage levels different from each other, a bank select pin receiving a bank select signal, a voltage information selecting circuit selectively outputting the first voltage information stored in the first bank or the second voltage information stored in the second bank in response to the bank select signal received through the bank select pin, and a DC-DC converter generating panel driving voltages having the first voltage levels based on the first voltage information when the first voltage information is output from the voltage information selecting circuit, and generating the panel driving voltages having the second voltage levels based on the second voltage information when the second voltage information is output from the voltage information selecting circuit.

    DISPLAY DEVICE
    8.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20230121344A1

    公开(公告)日：2023-04-20

    申请号：US17965576

    申请日：2022-10-13

    Applicant: Samsung Display Co., LTD.

    Inventor： Tae Gon IM ,  Jong Jae LEE ,  Dae Gwang JANG

    IPC: G09G3/32

    Abstract: A display device includes: a pixel unit including a plurality of pixels; a data driver configured to supply a data voltage to the pixels through data lines based on a source output enable signal; and a reference voltage controller configured to supply a reference voltage to the pixels through reference voltage lines, wherein each of the pixels includes a light emitting element between a first power source line and a second power source line, and wherein the reference voltage controller is configured to compensate for the reference voltage based on the source output enable signal, and to supply a compensated reference voltage to an anode electrode of the light emitting element.

    DISPLAY DEVICE
    9.
    发明申请
    DISPLAY DEVICE 有权

    公开(公告)号：US20220375414A1

    公开(公告)日：2022-11-24

    申请号：US17670621

    申请日：2022-02-14

    Applicant: Samsung Display Co., LTD.

    Inventor： Soo Yeon KIM ,  Tae Gon IM ,  Jong Jae LEE ,  Jun Pyo LEE

    IPC: G09G3/3275 ,  G09G3/3233

    Abstract: A display device includes a display panel including a pixel including a light emitting element emitting light and electrically connected to a data line and a sensing line, a timing controller varying a driving frequency of the display panel based on an input frequency of digital video data, and a data driver supplying a data voltage to the data line based on the digital video data during a data addressing period of a frame period and receiving a sensing signal from the sensing line during a sensing period. The data driver electrically connects the sensing line to an initialization voltage line during the data addressing period in case that the digital video data is changed, and electrically connects the sensing line to a high impedance during the data addressing period in case that the digital video data is not changed.

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