公开(公告)号：US08749471B2

公开(公告)日：2014-06-10

申请号：US12959204

申请日：2010-12-02

申请人： Hyeonyong Jang ,  Ho-young Kim ,  Hyung-Ku Kang ,  Hak-Mo Choi

发明人： Hyeonyong Jang ,  Ho-young Kim ,  Hyung-Ku Kang ,  Hak-Mo Choi

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3611 ,  G09G2310/0237 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2320/062

摘要： An impulsively driven liquid crystal display includes a display panel displaying an image in response to a gate signal and a data signal, a panel driving circuit providing the gate signal and the data signal to the display panel using an image signal and a control signal, a backlight unit including a plurality of light sources that blink at once to provide a light to the display panel, and a backlight control circuit. The backlight control circuit automatically detects an existence of text information from a received image signal, and if the text is detected to be present, adjusts the blinking timing of the light sources to correspond with the area on the display panel where the text will be displayed, the adjustment being a function of a liquid crystal response delay time of liquid crystals used in the display panel.

摘要翻译： 脉冲驱动液晶显示器包括响应于门信号和数据信号显示图像的显示面板，使用图像信号和控制信号向显示面板提供门信号和数据信号的面板驱动电路， 包括立即闪烁以向显示面板提供光的多个光源的背光单元和背光控制电路。 背光控制电路根据接收到的图像信号自动检测文本信息的存在，并且如果检测到文本存在，则调整光源的闪烁定时以对准显示面板上显示文本的区域 ，调整是显示面板中使用的液晶的液晶响应延迟时间的函数。

公开(公告)号：US20110175859A1

公开(公告)日：2011-07-21

申请号：US12959204

申请日：2010-12-02

申请人： Hyeonyong JANG ,  Ho-young Kim ,  Hyung-Ku Kang ,  Hak-Mo Choi

发明人： Hyeonyong JANG ,  Ho-young Kim ,  Hyung-Ku Kang ,  Hak-Mo Choi

IPC分类号： G06F3/038 ,  G09G3/36

CPC分类号： G09G3/3406 ,  G09G3/3611 ,  G09G2310/0237 ,  G09G2310/08 ,  G09G2320/0261 ,  G09G2320/062

摘要： An impulsively driven liquid crystal display includes a display panel displaying an image in response to a gate signal and a data signal, a panel driving circuit providing the gate signal and the data signal to the display panel using an image signal and a control signal, a backlight unit including a plurality of light sources that blink at once to provide a light to the display panel, and a backlight control circuit. The backlight control circuit automatically detects an existence of text information from a received image signal, and if the text is detected to be present, adjusts the blinking timing of the light sources to correspond with the area on the display panel where the text will be displayed, the adjustment being a function of a liquid crystal response delay time of liquid crystals used in the display panel.

摘要翻译： 脉冲驱动液晶显示器包括响应于门信号和数据信号显示图像的显示面板，使用图像信号和控制信号向显示面板提供门信号和数据信号的面板驱动电路， 包括立即闪烁以向显示面板提供光的多个光源的背光单元和背光控制电路。 背光控制电路根据接收到的图像信号自动检测文本信息的存在，并且如果检测到文本存在，则调整光源的闪烁定时以对准显示面板上显示文本的区域 ，调整是显示面板中使用的液晶的液晶响应延迟时间的函数。

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。

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。

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。

公开(公告)号：US08767000B2

公开(公告)日：2014-07-01

申请号：US13190920

申请日：2011-07-26

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

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

IPC分类号： G09G5/02

CPC分类号： G09G3/342 ,  G09G3/2044 ,  G09G3/3611 ,  G09G2320/0242 ,  G09G2320/0271 ,  G09G2320/064 ,  G09G2320/0666 ,  G09G2340/16 ,  G09G2360/16

摘要： A data processing method compensates a color of input data for a present frame of a display panel of a display apparatus to generate color compensating data. Dimming levels of a plurality of light emitting blocks included in a light source module for the display panel are determined using the color compensating data. Compensating data of the present frame is generated using the color compensating data and compensating coefficient data including the dimming levels.

摘要翻译： 数据处理方法补偿显示装置的显示面板的当前帧的输入数据的颜色，以生成颜色补偿数据。 使用颜色补偿数据确定包括在用于显示面板的光源模块中的多个发光块的调光等级。 使用颜色补偿数据和包括调光水平的补偿系数数据来生成本帧的补偿数据。

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。

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。