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    Adaptive black clipping circuit, display device including the same and adaptive black clipping method
    4.
    发明授权
    Adaptive black clipping circuit, display device including the same and adaptive black clipping method 有权

    公开(公告)号：US10121425B2

    公开(公告)日：2018-11-06

    申请号：US14825376

    申请日：2015-08-13

    Applicant: Samsung Display Co., Ltd.

    Inventor： Ik-Hyun Ahn ,  Yoon-Gu Kim ,  Woo-Joo Lee ,  Bong-Im Park

    IPC: G09G3/36 ,  G09G3/34

    Abstract: An adaptive black clipping circuit in a display device includes a data corrector, a register, a pattern detector and a clipping selector. The data corrects input image data to generate corrected image data such that the corrected image data is equal to or greater than a black clipping value where the black clipping value corresponds to the input image data having a grayscale value of zero and the black clipping value is greater than zero. The register stores and provides configuration data. The pattern detector generates a pattern detection signal based on the input image data corresponding to a plurality of rows. The clipping selector selects one of the corrected image data and the configuration data in response to the pattern detection signal to provide output image data.

    Timing controller, display apparatus having the same and signal processing method thereof
    5.
    发明授权
    Timing controller, display apparatus having the same and signal processing method thereof 有权

    公开(公告)号：US10679546B2

    公开(公告)日：2020-06-09

    申请号：US15948483

    申请日：2018-04-09

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Ik-Hyun Ahn ,  Jae-Hyoung Park

    IPC: G09G3/20 ,  H03K9/08 ,  G09G3/36

    Abstract: A timing controller includes a count control circuit, a pulse width detector, and a pulse generator. The count control circuit receives an external enable signal. Pulses of the external enable signal include an effective and a blank period of image data. The count control circuit counts pulse widths of each of the pulses. The pulse width detector receives the counted pulse widths, compares a pulse width of a present pulse with pulse widths of previous pulses, and detects a pulse width of a previous pulse that has a pulse width smaller than the pulse width of the present pulse. The pulse generator generates three output pulses having pulse widths that are one-third a period of the detected previous pulse. The pulse generator outputs the first, second and third pulses as an internal enable signal.

    Data driver and display apparatus including the same
    8.
    发明授权
    Data driver and display apparatus including the same 有权

    公开(公告)号：US09691341B2

    公开(公告)日：2017-06-27

    申请号：US14698979

    申请日：2015-04-29

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Ik-Hyun Ahn ,  Yoon-Gu Kim ,  Bong-Im Park

    IPC: G09G3/36

    CPC classification number: G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2310/08 ,  G09G2320/0276

    Abstract: A data driver includes a digital-to-analog converter, a control signal output circuit, and an output buffer. The digital-to-analog converter generates first data voltages and second data voltages based on image data and a polarity control signal. Each first data voltage has a positive polarity, and each second data voltage has a negative polarity. The control signal output circuit outputs a first output control signal and a second output control signal based on the polarity control signal. A phase of the second output control signal is different from a phase of the first output control signal. The output buffer outputs the first data voltages based on the first output control signal and outputs the second data voltages based on the second output control signal.

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