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    BACKLIGHT UNIT
    1.
    发明申请
    BACKLIGHT UNIT 有权
    背光单元

    公开(公告)号：US20160143103A1

    公开(公告)日：2016-05-19

    申请号：US14841464

    申请日：2015-08-31

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wonhyoung KANG ,  Mingyu KIM ,  Taegon IM ,  Songyi HAN ,  Jintaek HONG

    IPC: H05B33/08

    CPC classification number: H05B33/0815 ,  G09G3/3406 ,  G09G3/3426 ,  H05B33/0845 ,  H05B33/0851 ,  H05B33/089 ,  H05B37/0245 ,  H05B37/0263 ,  H05B37/029 ,  H05B37/032

    Abstract: A backlight unit includes: a light source configured to emit light based on a driving current; and a backlight controller receiving a digital dimming signal that defines a length of an output period of the driving current from a pulse width modulator and configured to, when a duty ratio of the driving current is less than a reference duty ratio, modulates the duty ratio of the driving current so that the duty ratio of the driving current is equal to or greater than the reference duty ratio and decrease a duty ratio of the digital dimming signal.

    Abstract translation: 背光单元包括：被配置为基于驱动电流发光的光源; 以及背光控制器，其接收数字调光信号，所述数字调光信号限定来自脉宽调制器的驱动电流的输出周期的长度，并且被配置为当所述驱动电流的占空比小于参考占空比时，调制所述占空比 使得驱动电流的占空比等于或大于参考占空比，并降低数字调光信号的占空比。

    METHOD OF GENERATING CORRECTION DATA FOR DISPLAY DEVICE, AND DISPLAY DEVICE STORING CORRECTION DATA
    2.
    发明申请
    METHOD OF GENERATING CORRECTION DATA FOR DISPLAY DEVICE, AND DISPLAY DEVICE STORING CORRECTION DATA 审中-公开

    公开(公告)号：US20200098303A1

    公开(公告)日：2020-03-26

    申请号：US16577757

    申请日：2019-09-20

    Applicant: Samsung Display Co., LTD.

    Inventor： Mingyu KIM ,  Juneyoung LEE ,  Hyungwoo YIM ,  Hoi Sik MOON

    IPC: G09G3/20

    Abstract: In a method of generating correction data for a display device, an image is captured, a plurality of correction values are obtained at a plurality of sampling positions based on the captured image, whether a frequency criterion about a total number of overflow correction values is satisfied is determined, the overflow correction values being the correction values outside at least one reference range whether an adjacency criterion about a number of the overflow correction values at sampling positions adjacent to a sampling position of the each of the overflow correction values is satisfied is determined, a bit shift operation is selectively performed on the plurality of correction values according to whether the frequency and/or adjacency criterion is satisfied, and correction data representing the plurality of correction values on which the bit shift operation is performed, and bit shift information about the bit shift operation are stored in the display device.

    DISPLAY APPARATUS AND METHOD OF DRIVING DISPLAY PANEL USING THE SAME
    3.
    发明申请
    DISPLAY APPARATUS AND METHOD OF DRIVING DISPLAY PANEL USING THE SAME 审中-公开

    公开(公告)号：US20200175910A1

    公开(公告)日：2020-06-04

    申请号：US16701753

    申请日：2019-12-03

    Applicant: Samsung Display Co., Ltd.

    Inventor： Mingyu KIM ,  Hoisik MOON ,  Hee Joon KIM ,  Juneyoung LEE

    IPC: G09G3/20

    Abstract: A display apparatus includes a display panel, a driving controller, a gate driver and a data driver. The display panel includes a plurality of gate lines, a plurality of data lines and a plurality of pixels. The pixels are connected to the gate lines and the data lines. The driving controller determines a compensating value of a present data signal based on a previous data signal and the present data signal which are applied to a same data line of the data lines. The gate driver outputs a gate signal to the gate line. The data driver generates a data voltage based on the present data signal and the compensating value and outputs the data voltage to the same data line.

    SPOT DETECTION DEVICE, SPOT DETECTION METHOD, AND DISPLAY DEVICE
    4.
    发明申请
    SPOT DETECTION DEVICE, SPOT DETECTION METHOD, AND DISPLAY DEVICE 有权

    公开(公告)号：US20210035275A1

    公开(公告)日：2021-02-04

    申请号：US16894660

    申请日：2020-06-05

    Applicant: Samsung Display Co., Ltd.

    Inventor： Seyun KIM ,  HOISIK MOON ,  Mingyu KIM ,  Sangcheol PARK ,  Jae-Seok CHOI

    IPC: G06T7/00

    Abstract: Provided is a spot detection device including an imager configured to capture a display panel displaying a first image of a first grayscale and a second image of a second grayscale different from the first grayscale and generate image data, and a spot detector configured to receive the image data from the imager in order to detect a spot. The image data includes first image data obtained by capturing the first image, second image data obtained by capturing the second image, and a plurality of third image data obtained by capturing portions of the first image.

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