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    Method for driving liquid crystal display device
    1.
    发明授权
    Method for driving liquid crystal display device 有权
    驱动液晶显示装置的方法

    公开(公告)号：US08866729B2

    公开(公告)日：2014-10-21

    申请号：US13240033

    申请日：2011-09-22

    申请人： Min Ha Keum ,  Tae Kwon Jung ,  Dae-Gwang Jang ,  Dong Hak Pyo ,  Hak-Mo Choi

    发明人： Min Ha Keum ,  Tae Kwon Jung ,  Dae-Gwang Jang ,  Dong Hak Pyo ,  Hak-Mo Choi

    IPC分类号： G09G3/36 ,  G09G3/34

    CPC分类号： G09G3/342 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

    摘要： A method of driving a light source unit of a liquid crystal display panel according to an exemplary embodiment of the present disclosure includes the steps of calculating average and maximum values of image signals applied to the liquid crystal panel; calculating a representative value of the image signals using the average and maximum values; determining the luminance of the light source unit according to the representative value and driving the light source unit accordingly. The representative value may be calculated from Lrep=(1−β)×Lavg+β×Lmax, where Lrep is a representative value, Lavg is an average value, Lmax is the maximum value, and β is a value that decreases as a difference between the maximum and average image signal values increases, and has a range between 0 and 1.

    摘要翻译： 根据本公开的示例性实施例的驱动液晶显示面板的光源单元的方法包括以下步骤：计算施加到液晶面板的图像信号的平均值和最大值; 使用平均值和最大值计算图像信号的代表值; 根据代表值确定光源单元的亮度，并相应地驱动光源单元。 代表值可以从Lrep =（1-＆bgr;）×Lavg +＆bgr;×Lmax计算，其中Lrep是代表值，Lavg是平均值，Lmax是最大值，＆bgr; 是随着最大和平均图像信号值之间的差值的增加而减小的值，并且具有在0和1之间的范围。

    Method of Driving a Display Panel and Display Apparatus for Performing the Same
    2.
    发明申请
    Method of Driving a Display Panel and Display Apparatus for Performing the Same 审中-公开
    驱动显示面板的方法及其显示装置

    公开(公告)号：US20120206502A1

    公开(公告)日：2012-08-16

    申请号：US13292645

    申请日：2011-11-09

    申请人： Tae-Kwon Jung ,  Dae-Gwang Jang ,  Dong-Hak Pyo ,  Min-Ha Keum ,  Hak-Mo Choi

    发明人： Tae-Kwon Jung ,  Dae-Gwang Jang ,  Dong-Hak Pyo ,  Min-Ha Keum ,  Hak-Mo Choi

    IPC分类号： G09G5/10

    CPC分类号： G09G3/342 ,  G09G3/3426 ,  G09G2320/0233 ,  G09G2320/0646 ,  G09G2340/16 ,  G09G2360/16

    摘要： A method of driving a display panel determines luminance coefficients of a plurality of light emitting blocks included in a light source module using a Gaussian function. A pixel luminance is determined using the luminance coefficient and dimming levels of the light emitting block. The pixel luminance is a luminance of light provided to each pixel of the display panel. Input data compensated using the pixel luminance to generate compensated data. The pixel luminance provided to the pixels is calculated by considering the luminance change due to the adjacent light emitting blocks. Thus, the luminance of the input data is accurately displayed.

    摘要翻译： 驱动显示面板的方法使用高斯函数来确定包含在光源模块中的多个发光块的亮度系数。 使用发光块的亮度系数和调光度确定像素亮度。 像素亮度是提供给显示面板的每个像素的光的亮度。 使用像素亮度补偿输入数据以产生补偿数据。 通过考虑由于相邻发光块引起的亮度变化来计算提供给像素的像素亮度。 因此，准确地显示输入数据的亮度。

    Method for Driving Liquid Crystal Display Device
    3.
    发明申请
    Method for Driving Liquid Crystal Display Device 有权
    驱动液晶显示装置的方法

    公开(公告)号：US20120194568A1

    公开(公告)日：2012-08-02

    申请号：US13240033

    申请日：2011-09-22

    申请人： Min Ha Keum ,  Tae Kwon Jung ,  Dae-Gwang Jang ,  Dong Hak Pyo ,  Hak-Mo Choi

    发明人： Min Ha Keum ,  Tae Kwon Jung ,  Dae-Gwang Jang ,  Dong Hak Pyo ,  Hak-Mo Choi

    IPC分类号： G09G3/36 ,  G09G5/10

    CPC分类号： G09G3/342 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

    摘要： A method of driving a light source unit of a liquid crystal display panel according to an exemplary embodiment of the present disclosure includes the steps of calculating average and maximum values of image signals applied to the liquid crystal panel; calculating a representative value of the image signals using the average and maximum values; determining the luminance of the light source unit according to the representative value and driving the light source unit accordingly. The representative value may be calculated from Lrep−(1−β)×Lavg+β×Lmax, where Lrep is a representative value, Lavg is an average value, Lmax is the maximum value, and β is a value that decreases as a difference between the maximum and average image signal values increases, and has a range between 0 and 1.

    摘要翻译： 根据本公开的示例性实施例的驱动液晶显示面板的光源单元的方法包括以下步骤：计算施加到液晶面板的图像信号的平均值和最大值; 使用平均值和最大值计算图像信号的代表值; 根据代表值确定光源单元的亮度，并相应地驱动光源单元。 代表值可以从Lrep-（1-＆bgr;）×Lavg +＆bgr;×Lmax计算，其中Lrep是代表值，Lavg是平均值，Lmax是最大值，＆bgr; 是随着最大和平均图像信号值之间的差值的增加而减小的值，并且具有在0和1之间的范围。

    Method of controlling backlight device and display apparatus using the same
    5.
    发明授权
    Method of controlling backlight device and display apparatus using the same 有权
    控制背光装置的方法及使用其的显示装置

    公开(公告)号：US08947470B2

    公开(公告)日：2015-02-03

    申请号：US13181148

    申请日：2011-07-12

    申请人： Dae-Gwang Jang ,  Tae Kwon Jung ,  Donghak Pyo ,  Min Ha Keum ,  Hak-Mo Choi

    发明人： Dae-Gwang Jang ,  Tae Kwon Jung ,  Donghak Pyo ,  Min Ha Keum ,  Hak-Mo Choi

    IPC分类号： G09G5/10 ,  G09G3/34

    CPC分类号： G09G3/3426 ,  G09G2320/0626 ,  G09G2360/16

    摘要： In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.

    摘要翻译： 在显示装置中，显示面板被分为调光区域，背光装置包括向调光区域提供光的光源块。 基于提供给调光区域的图像信号产生分别对应于调光区域的灰度值和最大灰度值。 检查平均灰度值和最大灰度值是否分别在第一和第二参考范围内。 根据检查结果选择至少两个参数中的一个，并且使用所选择的参数来确定分别对应于调光区域的代表亮度值。 基于代表亮度值控制光源块的占空比。 结果，当将显示装置应用于调光装置时，功耗降低。

    METHOD OF CONTROLLING BACKLIGHT DEVICE AND DISPLAY APPARATUS USING THE SAME
    6.
    发明申请
    METHOD OF CONTROLLING BACKLIGHT DEVICE AND DISPLAY APPARATUS USING THE SAME 有权
    控制背光装置的方法和使用其的显示装置

    公开(公告)号：US20120162276A1

    公开(公告)日：2012-06-28

    申请号：US13181148

    申请日：2011-07-12

    申请人： Dae-Gwang Jang ,  Tae Kwon Jung ,  Donghak Pyo ,  Min Ha Keum ,  Hak-Mo Choi

    发明人： Dae-Gwang Jang ,  Tae Kwon Jung ,  Donghak Pyo ,  Min Ha Keum ,  Hak-Mo Choi

    IPC分类号： G09G3/36 ,  G09G5/10

    CPC分类号： G09G3/3426 ,  G09G2320/0626 ,  G09G2360/16

    摘要： In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.

    摘要翻译： 在显示装置中，显示面板被分为调光区域，背光装置包括向调光区域提供光的光源块。 基于提供给调光区域的图像信号产生分别对应于调光区域的灰度值和最大灰度值。 检查平均灰度值和最大灰度值是否分别在第一和第二参考范围内。 根据检查结果选择至少两个参数中的一个，并且使用所选择的参数来确定分别对应于调光区域的代表亮度值。 基于代表亮度值控制光源块的占空比。 结果，当将显示装置应用于调光装置时，功耗降低。

    Method for driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus
    7.
    发明授权
    Method for driving a light source, light source apparatus for performing the method and display apparatus having the light source apparatus 有权
    用于驱动光源的方法，用于执行该方法的光源装置和具有该光源装置的显示装置

    公开(公告)号：US08643682B2

    公开(公告)日：2014-02-04

    申请号：US12640505

    申请日：2009-12-17

    申请人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

    发明人： Hyuk-Hwan Kim ,  Dae-Gwang Jang ,  Hyung-Ku Kang ,  Hyeon-Yong Jang

    IPC分类号： G09G5/10

    CPC分类号： G09G3/342 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2360/16

    摘要： A method of driving a light source includes: determining a location of pixel data of a display relative to a plurality of light-emitting blocks of a light source, obtaining a plurality of luminance values of the light-emitting blocks corresponding to the location by using a lookup table (LUT) storing the luminance values of the light-emitting blocks, generating a plurality of histograms corresponding to the light-emitting blocks, determining a plurality of target luminance values of the light-emitting blocks using the histograms, and driving the light-emitting blocks using the determined target luminance values. The luminance values of the light-emitting blocks are based on the location of the pixel data within an image block of the display corresponding to each light-emitting block. Each of the histograms indicates a frequency of each of the luminance values of a respective one of the light-emitting blocks.

    摘要翻译： 一种驱动光源的方法包括：确定显示器相对于光源的多个发光块的像素数据的位置，通过使用与多个发光块对应的发光块获得多个亮度值 存储发光块的亮度值的查找表（LUT），生成对应于发光块的多个直方图，使用直方图确定发光块的多个目标亮度值，并且驱动 使用所确定的目标亮度值的发光块。 发光块的亮度值基于与每个发光块相对应的显示器的图像块内的像素数据的位置。 每个直方图表示各个发光块的每个亮度值的频率。

    Method of driving a display apparatus to compensate for uneven backlighting
    10.
    发明授权
    Method of driving a display apparatus to compensate for uneven backlighting 有权
    驱动显示装置补偿不均匀背光的方法

    公开(公告)号：US08482509B2

    公开(公告)日：2013-07-09

    申请号：US12608763

    申请日：2009-10-29

    申请人： Weon-Jun Choe ,  Kyoung-Phil Kim ,  Dae-Gwang Jang

    发明人： Weon-Jun Choe ,  Kyoung-Phil Kim ,  Dae-Gwang Jang

    IPC分类号： G09G3/36

    CPC分类号： G09G3/342 ,  G09G3/3611 ,  G09G2310/066 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/0646 ,  G09G2340/16 ,  G09G2360/16

    摘要： A method for driving a display apparatus, according to one or more embodiments of the present invention, provides a luminance representative value of a unit light-emitting block that may be determined from an external image signal of a plurality of image blocks corresponding to the unit light-emitting block including a plurality of light sources. A luminance compensation value of the unit light-emitting block may be calculated by compensating the luminance representative value. Pixel data of the external image signal in a central area of the unit light-emitting block and a boundary area may be corrected based on the luminance compensation value. A driving signal may be provided to the unit light-emitting block based on the luminance compensation value. Accordingly, a phenomenon in which a boundary of the unit light-emitting block is visible is removed so that the display quality of all image may be enhanced.

    摘要翻译： 根据本发明的一个或多个实施例的用于驱动显示装置的方法提供了可以根据与单元对应的多个图像块的外部图像信号确定的单位发光块的亮度代表值 发光块包括多个光源。 可以通过补偿亮度代表值来计算单位发光块的亮度补偿值。 可以基于亮度补偿值来校正单位发光块的中心区域和边界区域中的外部图像信号的像素数据。 可以基于亮度补偿值将驱动信号提供给单元发光块。 因此，消除了单位发光块的边界可见的现象，从而可以提高全部图像的显示质量。