公开(公告)号：US08848117B2

公开(公告)日：2014-09-30

申请号：US13470037

申请日：2012-05-11

申请人： Gak Seok Lee ,  Jaehyoung Park ,  Kichul Shin ,  Youn Hak Jeong ,  Tae Kwon Jung ,  Haksun Chang

发明人： Gak Seok Lee ,  Jaehyoung Park ,  Kichul Shin ,  Youn Hak Jeong ,  Tae Kwon Jung ,  Haksun Chang

IPC分类号： G02F1/1335

CPC分类号： G02F1/13471 ,  G02F1/1392 ,  G02F2203/50 ,  H04N13/337 ,  H04N13/341 ,  H04N13/398 ,  H04N2213/002

摘要： A display apparatus includes a shutter panel and a display panel that alternately displays a left-eye image and a right-eye image in a 3D mode. The shutter panel includes dual-frequency liquid crystals in which a polarity of dielectric constant anisotropy is changed according to a frequency of the driving voltage to selectively delay a phase of the left-eye image or the right-eye image, which pass through the dual-frequency liquid crystals. The dual-frequency liquid crystals have a fast response speed to the low voltage, and thus a cross-talk phenomenon between the left-eye image and the right-eye image may be prevented.

摘要翻译： 显示装置包括快门面板和显示面板，其以3D模式交替显示左眼图像和右眼图像。 快门面板包括双频液晶，其中根据驱动电压的频率改变介电常数各向异性的极性，以选择性地延迟通过双重图像的左眼图像或右眼图像的相位 频率液晶。 双频液晶具有对低电压的快速响应速度，因此可以防止左眼图像和右眼图像之间的串扰现象。

公开(公告)号：US08599225B2

公开(公告)日：2013-12-03

申请号：US12969809

申请日：2010-12-16

申请人： Tae Kwon Jung ,  Dongmin Yeo ,  Byungchoon Yang ,  Yong-Hoon Kwon

发明人： Tae Kwon Jung ,  Dongmin Yeo ,  Byungchoon Yang ,  Yong-Hoon Kwon

IPC分类号： G09G5/10

CPC分类号： G09G3/3607 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/0626 ,  G09G2360/16

摘要： A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.

公开(公告)号：US20110227957A1

公开(公告)日：2011-09-22

申请号：US12969809

申请日：2010-12-16

申请人： Tae Kwon Jung ,  Dongmin Yeo ,  Byungchoon Yang ,  Yong-Hoon Kwon

发明人： Tae Kwon Jung ,  Dongmin Yeo ,  Byungchoon Yang ,  Yong-Hoon Kwon

IPC分类号： G09G5/10 ,  G09G3/36

CPC分类号： G09G3/3607 ,  G09G3/3413 ,  G09G3/3426 ,  G09G2320/0626 ,  G09G2360/16

摘要： A plurality of gray-scale values is extracted from image signals corresponding to a dimming area to calculate a mean value of the gray-scale values, and at least one of a variance, a standard deviation, a kurtosis, a skewness, a central moment, and an image moment is calculated using the mean value. Then, a representative gray-scale value corresponding to the dimming area is determined using the calculated values, and a dimming function for the light sources included in the dimming area is determined based on the representative gray-scale value. Then, the light sources included in the dimming area are driven based on the dimming function.

摘要翻译： 从对应于调光区域的图像信号中提取多个灰度值，以计算灰度值的平均值，以及方差，标准偏差，峰度，偏度，中心时刻 ，并使用平均值计算图像力矩。 然后，使用所计算的值确定与调光区域对应的代表灰度值，并且基于代表灰度值来确定包括在调光区域中的光源的调光功能。 然后，基于调光功能驱动包括在调光区域中的光源。

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。

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。