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    Liquid crystal display and driving method thereof
    1.
    发明授权
    Liquid crystal display and driving method thereof 有权

    公开(公告)号：US09847063B2

    公开(公告)日：2017-12-19

    申请号：US14523590

    申请日：2014-10-24

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Su Hyeong Park ,  Ung Gyu Min ,  Ji Myoung Seo ,  Cheol Woo Park ,  Ho Yong Jung

    IPC分类号： G09G5/00 ,  G09G3/36

    CPC分类号： G09G3/3614 ,  G09G3/3688 ,  G09G2310/0248 ,  G09G2330/021

    摘要： A liquid crystal display includes: a display panel; a signal controller configured to receive an input image signal and an input control signal, output an output image signal and an output control signal, and determine a charge sharing between two or more data lines having voltages in the same polarity; and a data driver configured to convert, based on the output control signal, the image signal into data voltages to be supplied to the data lines connected to the pixels, the data voltages having positive levels and negative levels. The data driver is further configured to perform a first charge sharing by short-circuiting first and second data lines that are adjacent to each other, and a second charge sharing by short-circuiting third and fourth data lines having data voltages in the same polarity, wherein the first charge sharing and the second charge sharing may not temporally overlap with each other.

    Display device and driving method thereof
    2.
    发明授权
    Display device and driving method thereof 有权
    显示装置及其驱动方法

    公开(公告)号：US08982108B2

    公开(公告)日：2015-03-17

    申请号：US13691365

    申请日：2012-11-30

    申请人： Samsung Display Co., Ltd.

    发明人： Kyoung Won Lee ,  Seung Seok Nam ,  Cheol Woo Park ,  Kyoung Ho Lim ,  Dae-Gwang Jang ,  Gi Geun Kim ,  Eun Ho Lee ,  Ung Gyu Min ,  Seok Ha Hong

    IPC分类号： G09G3/20

    CPC分类号： G09G3/20 ,  G09G2320/103 ,  G09G2340/0435 ,  G09G2360/16

    摘要： A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture.

    摘要翻译： 一种显示装置，包括：显示面板; 以及信号控制器，其控制用于驱动显示面板的信号，其中信号控制器包括代表值发生器，其顺序地操作一帧的图像数据的一部分，其中代表值发生器将最后位置数字移动到另一位置数位 并且生成表示对应于图像数据的一部分的帧图像的一部分的代表值; 在其中存储代表值的存储部分; 以及比较器，其比较当前帧和现有帧的代表值，以确定帧图像的部分是静止图像还是运动图像，并且信号控制器控制用于驱动显示面板的信号，使得用于 静止图像低于运动图像的驱动频率。

    Display device and driving method thereof
    4.
    发明授权
    Display device and driving method thereof 有权

    公开(公告)号：US09928772B2

    公开(公告)日：2018-03-27

    申请号：US15075835

    申请日：2016-03-21

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Seok Ha Hong ,  Dae-Gwang Jang ,  Byung Sun Kim ,  Sang Mi Kim ,  Ung Gyu Min ,  Hyun Sik Hwang ,  Gi Geun Kim ,  Kyoung Won Lee

    IPC分类号： G09G3/20 ,  G09G3/36

    摘要： A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.

    Display device and driving method thereof
    6.
    发明授权
    Display device and driving method thereof 有权
    显示装置及其驱动方法

    公开(公告)号：US09293106B2

    公开(公告)日：2016-03-22

    申请号：US14146792

    申请日：2014-01-03

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Seok Ha Hong ,  Dae-Gwang Jang ,  Byung Sun Kim ,  Sang Mi Kim ,  Ung Gyu Min ,  Hyun Sik Hwang ,  Gi Geun Kim ,  Kyoung Won Lee

    IPC分类号： G09G3/36

    CPC分类号： G09G3/2092 ,  G09G3/2003 ,  G09G3/3648 ,  G09G3/3696 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/103 ,  G09G2340/0435

    摘要： A controller controls the driving frequency and voltages for a display device. If image data corresponds to a moving picture, the controller drives a data driver and a gate driver at a moving picture frequency. If image data corresponds to a still image, drives the data driver and the gate driver at a still image frequency lower frequency than the moving picture frequency. When the still image is to be displayed, the signal controller also controls leakage current of a thin film transistor of a pixel based on a representative value of the image data, such that positive leakage current applied for a positive data voltage is equal to negative leakage current applied for a negative data voltage.

    摘要翻译： 控制器控制显示装置的驱动频率和电压。 如果图像数据对应于运动图像，则控制器以运动图像频率驱动数据驱动器和栅极驱动器。 如果图像数据对应于静止图像，则以比运动图像频率更低的静止图像频率驱动数据驱动器和栅极驱动器。 当要显示静止图像时，信号控制器还基于图像数据的代表值来控制像素的薄膜晶体管的泄漏电流，使得为正数据电压施加的正的漏电流等于负泄漏 电流施加负数据电压。