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Patent Agency Ranking
1.发明授权Driving method for local dimming of liquid crystal display device and apparatus using the same 有权液晶显示装置及其装置的局部调光的驱动方法公开(公告)号：US08531385B2
公开(公告)日：2013-09-10
申请号：US12869520
申请日：2010-08-26
Applicant: Dong-Woo Kim , Si-Hoon Lee , Kyo-Hyuck Choo
Inventor： Dong-Woo Kim , Si-Hoon Lee , Kyo-Hyuck Choo
CPC classification number: G09G3/3426 , G09G2320/0646 , G09G2360/16
Abstract: A driving method for local dimming of a Liquid Crystal Display (LCD) device and an apparatus using the same are disclosed. The driving method includes determining a dimming value of each of a plurality of local dimming blocks into which a backlight unit is divided to be driven on a block basis by analyzing input image data on a block basis, detecting a high gray area concentrated with high gray levels from each local dimming block based on the analysis of the input image data, and generating position information about the high gray area according to a distance between the high gray area in the block and an adjacent block, and compensating the dimming value of each of the plurality of local dimming blocks by spatial filtering using a spatial filter having a different filter size or different filter coefficients for local dimming blocks according to the position information about the high gray area in the local dimming block.
Abstract translation: 公开了一种用于液晶显示器（LCD）器件的局部调光的驱动方法及其使用方法。 所述驱动方法包括：通过以块为基础分析输入图像数据来确定多个局部调光块中的每一个的调光值，通过以块为基础分析输入图像数据，将背光单元划分成要以块为基础驱动的多个局部调光块， 基于对输入图像数据的分析，从每个局部调光块的电平开始，并且根据块中的高灰度区域与相邻块之间的距离生成关于高灰度区域的位置信息，并且补偿每个区域的调光块的调光值 根据关于本地调光块中的高灰度区域的位置信息，通过使用具有不同滤波器尺寸或不同滤波器系数的空间滤波器对局部调光块进行空间滤波的多个局部调光块。
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2.发明申请DRIVING METHOD FOR LOCAL DIMMING OF LIQUID CRYSTAL DISPLAY DEVICE AND APPARATUS USING THE SAME 有权用于液晶显示装置的本地调光的驱动方法及其使用的装置公开(公告)号：US20110148941A1
公开(公告)日：2011-06-23
申请号：US12869520
申请日：2010-08-26
Applicant: Dong-Woo Kim , Si-Hoon Lee , Kyo-Hyuck Choo
Inventor： Dong-Woo Kim , Si-Hoon Lee , Kyo-Hyuck Choo
CPC classification number: G09G3/3426 , G09G2320/0646 , G09G2360/16
Abstract: A driving method for local dimming of a Liquid Crystal Display (LCD) device and an apparatus using the same are disclosed. The driving method includes determining a dimming value of each of a plurality of local dimming blocks into which a backlight unit is divided to be driven on a block basis by analyzing input image data on a block basis, detecting a high gray area concentrated with high gray levels from each local dimming block based on the analysis of the input image data, and generating position information about the high gray area according to a distance between the high gray area in the block and an adjacent block, and compensating the dimming value of each of the plurality of local dimming blocks by spatial filtering using a spatial filter having a different filter size or different filter coefficients for local dimming blocks according to the position information about the high gray area in the local dimming block.
Abstract translation: 公开了一种用于液晶显示器（LCD）器件的局部调光的驱动方法及其使用方法。 所述驱动方法包括：通过以块为基础分析输入图像数据来确定多个局部调光块中的每一个的调光值，通过以块为基础分析输入图像数据，将背光单元划分成要以块为基础驱动的多个局部调光块， 基于对输入图像数据的分析，从每个局部调光块的电平开始，并且根据块中的高灰度区域与相邻块之间的距离生成关于高灰度区域的位置信息，并且补偿每个区域的调光块的调光值 根据关于本地调光块中的高灰度区域的位置信息，通过使用具有不同滤波器尺寸或不同滤波器系数的空间滤波器对局部调光块进行空间滤波的多个局部调光块。
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3.发明申请公开(公告)号：US20110141166A1
公开(公告)日：2011-06-16
申请号：US12962710
申请日：2010-12-08
Applicant: Hee Won Ahn , Si-Hoon Lee , Kyung-Joon Kwon , Kyo-Hyuck Choo
Inventor： Hee Won Ahn , Si-Hoon Lee , Kyung-Joon Kwon , Kyo-Hyuck Choo
CPC classification number: G09G3/3426 , G09G3/3648 , G09G2320/0242 , G09G2320/0646 , G09G2330/021 , G09G2360/16
Abstract: Disclosed herein is a local dimming driving method and device of a Liquid Crystal Display (LCD) device, which is capable of preventing color change due to gray scale saturation when data is compensated while enabling local dimming. The local dimming driving method of the LCD device includes detecting maximum values per pixel from input image data, analyzing the maximum values per pixel on a block-by-block basis, and determining local dimming values per block according to the analysis result, calculating a first gain value using the local dimming values per block, calculating a maximum gain value per pixel using the maximum value per pixel as a second gain value, selecting a smaller value of the first and second gain values as a final gain value, compensating the input image data using the final gain value, and controlling luminance of a backlight unit on the block-by-block basis using the local dimming value per block.
Abstract translation: 这里公开了一种液晶显示器（LCD）器件的局部调光驱动方法和装置，其能够在数据被补偿同时实现局部调光的同时防止灰度饱和引起的颜色变化。 LCD装置的局部调光驱动方法包括从输入图像数据检测每像素的最大值，逐块分析每像素的最大值，并根据分析结果确定每个块的局部调光值，计算 使用每块的局部调光值计算第一增益值，使用每像素的最大值计算每像素的最大增益值作为第二增益值，将第一和第二增益值的较小值选择为最终增益值，补偿输入 使用最终增益值的图像数据，并且使用每个块的局部调光值逐块地控制背光单元的亮度。
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4.发明授权公开(公告)号：US09087485B2
公开(公告)日：2015-07-21
申请号：US12962710
申请日：2010-12-08
Applicant: Hee-Won Ahn , Si-Hoon Lee , Kyung-Joon Kwon , Kyo-Hyuck Choo
Inventor： Hee-Won Ahn , Si-Hoon Lee , Kyung-Joon Kwon , Kyo-Hyuck Choo
CPC classification number: G09G3/3426 , G09G3/3648 , G09G2320/0242 , G09G2320/0646 , G09G2330/021 , G09G2360/16
Abstract: Disclosed herein is a local dimming driving method and device of a Liquid Crystal Display (LCD) device, which is capable of preventing color change due to gray scale saturation when data is compensated while enabling local dimming. The local dimming driving method of the LCD device includes detecting maximum values per pixel from input image data, analyzing the maximum values per pixel on a block-by-block basis, and determining local dimming values per block according to the analysis result, calculating a first gain value using the local dimming values per block, calculating a maximum gain value per pixel using the maximum value per pixel as a second gain value, selecting a smaller value of the first and second gain values as a final gain value, compensating the input image data using the final gain value, and controlling luminance of a backlight unit on the block-by-block basis using the local dimming value per block.
Abstract translation: 这里公开了一种液晶显示器（LCD）器件的局部调光驱动方法和装置，其能够在数据被补偿同时实现局部调光的同时防止灰度饱和引起的颜色变化。 LCD装置的局部调光驱动方法包括从输入图像数据检测每像素的最大值，逐块分析每像素的最大值，并根据分析结果确定每个块的局部调光值，计算 使用每块的局部调光值计算第一增益值，使用每像素的最大值计算每像素的最大增益值作为第二增益值，将第一和第二增益值的较小值选择为最终增益值，补偿输入 使用最终增益值的图像数据，并且使用每个块的局部调光值逐块地控制背光单元的亮度。
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5.发明授权公开(公告)号：US09606655B2
公开(公告)日：2017-03-28
申请号：US13227626
申请日：2011-09-08
Applicant: Kyo-Hyuck Choo , Jung-Hoon Seo , Sang-Soo Hwang , Sun-Yeop Kim
Inventor： Kyo-Hyuck Choo , Jung-Hoon Seo , Sang-Soo Hwang , Sun-Yeop Kim
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/042 , G06F3/044 , G09G3/3266 , G09G3/3275 , G09G3/3677 , G09G3/3688 , G09G2310/08
Abstract: A display device having touch sensors and a method of driving the same are disclosed. The display device includes a display panel including a pixel array including pixels and a touch sensor array including touch sensors formed in the pixel array, the pixel array being divided into blocks, a gate driver to sequentially drive a plurality of gate lines in the pixel array in a block unit, a data driver to drive a plurality of data lines in the pixel array when the gate lines are driven, a touch controller to sequentially drive the touch sensor arrays in the block unit, and a timing controller to divide one frame into at least one display mode at which the pixel array is driven and at least one touch sensing mode at which the touch sensor array is driven and to control the gate drive, the data driver and the touch controller so that the display mode and the touch sensing mode alternate.
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