专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08654052B2 Method and device for driving local dimming in liquid crystal display device 有权
标题翻译：用于驱动液晶显示装置局部调光的方法和装置
公开(公告)号：US08654052B2
公开(公告)日：2014-02-18
申请号：US13177964
申请日：2011-07-07
申请人： Jung-Hwan Lee , Kyung-Joon Kwon , Dong-Woo Kim , Hee-Won Ahn
发明人： Jung-Hwan Lee , Kyung-Joon Kwon , Dong-Woo Kim , Hee-Won Ahn
IPC分类号： G09G3/36
CPC分类号： G09G3/3426 , G09G3/3648 , G09G2320/0646 , G09G2320/066 , G09G2360/16
摘要： The present invention provides method and device for driving local dimming in a liquid crystal display device which enables adaptive application of a gradation roll-off according to an image characteristic. The method for driving local dimming in a liquid crystal display device includes the steps of determining a local dimming value of each light emitting block by analyzing a received image data light emitting block by light emitting block of a backlight unit, producing a pixel compensating coefficient on a light quantity change of each pixel by using the local dimming value of each light emitting block, producing a required gradient value by compensating the received image data by using the pixel compensating coefficient, and producing maximum required gradient values for one frame and an average value of the maximum required gradient values for one frame, determining a roll-off end point of a gradient roll-off section according to the maximum required gradient value, and determining a roll-off starting point of the gradient roll-off section according to the average of the maximum required gradient values, setting a gradient change curve of the gradient roll-off section by using the roll-off starting point and end point, and producing a gain value of each pixel from the gradient change curve, and forwarding an output gradient value by correcting the required gradient value by using the gain value of each pixel.
摘要翻译：本发明提供一种用于驱动液晶显示装置中的局部调光的方法和装置，其能够根据图像特性自动应用渐变滚降。用于驱动液晶显示装置中的局部调光的方法包括以下步骤：通过背光单元的发光块分析接收的图像数据发光块来确定每个发光块的局部调光值，产生像素补偿系数通过使用每个发光块的局部调光值，每个像素的光量变化，通过使用像素补偿系数补偿接收到的图像数据并产生一帧的最大所需梯度值并产生平均值，产生所需的梯度值的一帧的最大所需梯度值，根据最大所需梯度值确定梯度滚降部分的滚降终点，并根据所述梯度滚降部分的滚降起点确定最大所需梯度值的平均值，通过使用滚动设置梯度滚降部分的梯度变化曲线离开起点和终点，并从梯度变化曲线产生每个像素的增益值，并通过使用每个像素的增益值校正所需的梯度值来转发输出梯度值。

2. 发明授权

US08259059B2 Driving system capable of improving contrast ratio for liquid crystal display device, liquid crystal display device including the same, and driving method using the same 有权
标题翻译：能够提高液晶显示装置的对比度的驱动系统，包括该液晶显示装置的液晶显示装置及使用其的驱动方法
公开(公告)号：US08259059B2
公开(公告)日：2012-09-04
申请号：US12230418
申请日：2008-08-28
申请人： Joon Ha Park , Sang Kyu Park , Jae Woo Lee , Hee Jung Hong , Kyung Joon Kwon
发明人： Joon Ha Park , Sang Kyu Park , Jae Woo Lee , Hee Jung Hong , Kyung Joon Kwon
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2320/064 , G09G2320/0646 , G09G2320/066 , G09G2330/021
摘要： A driving system for a liquid crystal display device includes a system unit to supply image data to be displayed on a liquid crystal panel, the system unit generating a system dimming signal, an inverter unit to control luminance of a backlight unit, the inverter unit receiving the system dimming signal, and a control unit to control display of images on the liquid crystal panel, the control unit receiving the system dimming signal from the inverter unit and outputting a control dimming signal to the inverter unit, wherein the inverter unit adjusts luminance of the backlight unit using the control dimming signal input from the control unit.
摘要翻译：液晶显示装置的驱动系统包括：系统单元，用于提供要显示在液晶面板上的图像数据;系统单元产生系统调光信号;逆变器单元，控制背光单元的亮度;逆变器单元接收系统调光信号，以及控制单元，用于控制液晶面板上的图像显示，控制单元接收来自逆变器单元的系统调光信号，并向控制单元输出控制调光信号，其中逆变器单元调节亮度背光单元使用从控制单元输入的控制调光信号。

3. 发明申请

US20110141004A1 DRIVING METHOD FOR LOCAL DIMMING OF LIQUID CRYSTAL DISPLAY DEVICE AND APPARATUS USING THE SAME 有权
标题翻译：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：US20110141004A1
公开(公告)日：2011-06-16
申请号：US12836372
申请日：2010-07-14
申请人： Kyung-Joon Kwon , Dong-Woo Kim , Chang-Kyun Park
发明人： Kyung-Joon Kwon , Dong-Woo Kim , Chang-Kyun Park
IPC分类号： G09G3/36
CPC分类号： G09G3/3426 , G09G2320/0646 , G09G2360/16
摘要： 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 assigning a first block index to each of a plurality of blocks into which backlight unit is divided, detecting a connection order of the blocks in the backlight unit, arranging the first block indexes according to the block connection order, storing first block index ordering information that specifies the arranged first block indexes, retrieving the stored first block index ordering information, generating second block index information that specifies second block indexes corresponding to the first block indexes of the backlight unit, determining a local dimming value for each block by analyzing input data on a block basis according to the second block index information, rearranging the local dimming values arranged based on the second block index information according to the first block index ordering information, and driving the plurality of blocks respectively using the rearranged local dimming values of the plurality of blocks.
摘要翻译：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。所述驱动方法包括对背光单元划分成的多个块中的每一个分配第一块索引，检测背光单元中的块的连接顺序，根据块连接顺序排列第一块索引，存储第一块指定排列的第一块索引的索引排序信息，检索所存储的第一块索引排序信息，生成指定对应于背光单元的第一块索引的第二块索引的第二块索引信息，通过以下方式确定每个块的局部调光值根据第二块索引信息，以块为基础分析输入数据，根据第一块索引排序信息重新排列基于第二块索引信息排列的局部调光值，并分别使用重新排列的局部调光值驱动多个块的多个块。

4. 发明授权

US07782283B2 Apparatus and method for driving liquid crystal display device 有权
标题翻译：用于驱动液晶显示装置的装置和方法
公开(公告)号：US07782283B2
公开(公告)日：2010-08-24
申请号：US11633994
申请日：2006-12-05
申请人： Hee Jung Hong , Kyung Joon Kwon
发明人： Hee Jung Hong , Kyung Joon Kwon
IPC分类号： G09G3/36 , G09G5/00 , G09G5/10 , G06F3/038
CPC分类号： G09G3/3413 , G02F2001/133613 , G09G3/3426 , G09G3/3648 , G09G2320/064 , G09G2340/06
摘要： An apparatus and method for driving an LCD device is provided. The apparatus includes an LCD panel that is comprised of red, green, blue and white sub-pixels. A data converter converts input data of three colors into input data of four colors. A data driver converts the input data of four colors into a video signal, and supplies the video signal to each sub-pixel. A gate driver supplies a scan pulse to each sub-pixel. A timing controller arranges the input data of four colors supplied from the data converter and then supplies the arranged data to the data driver. A backlight unit is comprised of LEDs of at least five colors to emit the light to the LCD panel. A backlight controller controls the backlight unit in accordance with the input data of three colors and the sub-frame control signal.
摘要翻译：提供一种用于驱动LCD装置的装置和方法。该装置包括由红色，绿色，蓝色和白色子像素组成的LCD面板。数据转换器将三种颜色的输入数据转换为四种颜色的输入数据。数据驱动器将四种颜色的输入数据转换为视频信号，并将视频信号提供给每个子像素。栅极驱动器向每个子像素提供扫描脉冲。定时控制器布置从数据转换器提供的四种颜色的输入数据，然后将排列的数据提供给数据驱动器。背光单元由至少五种颜色的LED组成，以将光发射到LCD面板。背光控制器根据三种颜色的输入数据和子帧控制信号控制背光单元。

5. 发明授权

US07719512B2 Liquid crystal display and method for driving the same 有权
标题翻译：液晶显示器及其驱动方法
公开(公告)号：US07719512B2
公开(公告)日：2010-05-18
申请号：US11433426
申请日：2006-05-15
申请人： Kyung Joon Kwon
发明人： Kyung Joon Kwon
IPC分类号： G09G3/36
CPC分类号： G09G3/3426 , G09G3/3648 , G09G2320/0238 , G09G2320/0646 , G09G2360/16
摘要： A liquid crystal display (LCD) and corresponding driving method. The LCD includes a liquid crystal display panel for displaying images, a gate driver and a source driver for supplying scan signals and analog pixel signals to gate and data lines of the liquid crystal panel, a backlight unit having a side radiation type LED array that is driven sectionally by a plurality of unit areas to irradiate light to the liquid crystal display panel, and a luminance controller for controlling a luminance of the LED array by unit areas according to surrounding units areas.
摘要翻译：液晶显示器（LCD）及相应的驱动方法。 LCD包括用于显示图像的液晶显示面板，用于向液晶面板的栅极和数据线提供扫描信号和模拟像素信号的栅极驱动器和源极驱动器，具有侧面辐射型LED阵列的背光单元，由多个单位区域驱动，以将光照射到液晶显示面板;以及亮度控制器，用于根据周围单位区域对单元区域控制LED阵列的亮度。

6. 发明授权

US07580019B2 Method and apparatus for driving liquid crystal display device 有权
标题翻译：用于驱动液晶显示装置的方法和装置
公开(公告)号：US07580019B2
公开(公告)日：2009-08-25
申请号：US11150542
申请日：2005-06-10
申请人： Hee Jung Hong , Kyung Joon Kwon
发明人： Hee Jung Hong , Kyung Joon Kwon
IPC分类号： G09G3/36 , G09G5/00 , G06F3/038
CPC分类号： G09G3/2092 , G09G2320/0252 , G09G2320/0285 , G09G2340/02 , G09G2340/16 , G09G2360/18
摘要： A driving method and apparatus of a liquid crystal display device is described. Data from a current frame is compressed and delayed by a frame memory. Compressed data of the current frame and the compressed data of a previous frame from the frame memory are restored. The restored data of the previous frame is compared with the restored data of the current frame to determine a modulated portion for the current frame in accordance with the comparison result. The current frame data is modulated by adding the modulated portion to the current frame data. Only a single frame memory is disposed within the driving apparatus.
摘要翻译：描述了液晶显示装置的驱动方法和装置。来自当前帧的数据被帧存储器压缩和延迟。恢复当前帧的压缩数据和来自帧存储器的先前帧的压缩数据。将前一帧的恢复数据与当前帧的恢复数据进行比较，以根据比较结果确定当前帧的调制部分。通过将调制部分添加到当前帧数据来调制当前帧数据。只有单个帧存储器设置在驱动装置内。

7. 发明授权

US08427419B2 Local dimming driving method and device of liquid crystal display device 有权
标题翻译：液晶显示装置的局部调光驱动方法及装置
公开(公告)号：US08427419B2
公开(公告)日：2013-04-23
申请号：US12853811
申请日：2010-08-10
申请人： Hee-Won Ahn , Hee-Jung Hong , Kyung-Joon Kwon , Dong-Woo Kim
发明人： Hee-Won Ahn , Hee-Jung Hong , Kyung-Joon Kwon , Dong-Woo Kim
IPC分类号： G09G3/36 , G09G5/10 , G09F13/08
CPC分类号： G09G3/3426 , G02F2001/133601 , G09G2320/064 , G09G2320/0646
摘要： Disclosed herein is a local dimming driving method and device of an LCD device, which is capable of minimizing luminance deviation at the same gray scale due to a dimming difference between blocks. The local dimming driving method of the LCD device includes analyzing input image data in units of blocks and determining a local dimming value per block, performing spatial filtering with respect to the local dimming value per block, repeating spatial filtering by a predetermined repeat count, and controlling luminance of a backlight unit on a block-by-block basis using the local dimming value per block controlled by spatial filtering.
摘要翻译：这里公开了一种LCD装置的局部调光驱动方法和装置，其能够由于块之间的调光差异而使相同灰度处的亮度偏差最小化。 LCD装置的局部调光驱动方法包括以块为单位分析输入图像数据，并确定每块的局部调光值，对每块的局部调光值进行空间滤波，以预定的重复计数重复空间滤波，以及使用每个由空间滤波控制的块的局部调光值逐块地控制背光单元的亮度。

8. 发明授权

US08363003B2 Method of driving liquid crystal display device 有权
公开(公告)号：US08363003B2
公开(公告)日：2013-01-29
申请号：US12289212
申请日：2008-10-22
申请人： Kyung-Joon Kwon , Hee-Won Ahn , Sung-Soo Kim
发明人： Kyung-Joon Kwon , Hee-Won Ahn , Sung-Soo Kim
IPC分类号： G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2320/0646 , G09G2330/021 , G09G2360/16
摘要： A method of driving a liquid crystal display device includes inputting source image data, each of which has one of m gray level values, wherein m is a natural number, defining T error data from the source image data, wherein the error data have top k gray level values, and T and k are a natural number, generating conversion image data having larger gray level values than the source image data using one having a largest gray level value from the source image data excluding the error data, inputting the conversion image data to a liquid crystal panel, controlling a brightness of a backlight unit in accordance with the conversion image data, forming a bitmap corresponding to the conversion image data, wherein the bitmap shows positional distribution of pixels with the error data, counting error areas by scanning the bitmap, wherein each of the error areas includes the predetermined number of the pixels having the error data, and controlling the T according to the number of the error.

9. 发明授权

US08179391B2 Mobile display device driving apparatus and method that can reduce power consumption 有权
标题翻译：可降低功耗的移动显示装置驱动装置和方法
公开(公告)号：US08179391B2
公开(公告)日：2012-05-15
申请号：US11638024
申请日：2006-12-13
申请人： Hee Jung Hong , Kyung Joon Kwon
发明人： Hee Jung Hong , Kyung Joon Kwon
IPC分类号： G09G5/00 , G09G3/36
CPC分类号： G09G3/3406 , G09G3/3611 , G09G2300/0452 , G09G2320/0606 , G09G2320/0646 , G09G2330/021 , G09G2340/06 , G09G2360/144
摘要： A mobile display device driving apparatus and method which can reduce power consumption are disclosed. The driving apparatus includes a liquid crystal panel having a plurality of liquid crystal cells each formed in sub-pixel areas of four colors, a battery charged with a voltage, a power saving mode signal generator that detects the remaining power of the battery and generates a power saving mode signal based on the detected power to set a power saving mode of the liquid crystal panel. A controller sets a gain value in response to the power saving mode signal, converts external three-color input data into four-color data based on the set gain value and generates a dimming signal in response to the power saving mode signal. A panel driver displays an image based on the four-color data on the liquid crystal panel. An inverter generates a lamp drive voltage based on the dimming signal, and a backlight unit generates light in response to the lamp drive voltage and irradiates the generated light to the liquid crystal panel.
摘要翻译：公开了能够降低功耗的移动显示装置的驱动装置和方法。驱动装置包括具有多个液晶单元的液晶面板，每个液晶单元分别形成为四种颜色的子像素区域，带有电压的电池;功率保存模式信号发生器，其检测电池的剩余电量并产生基于检测到的功率的省电模式信号来设置液晶面板的省电模式。控制器响应于省电模式信号设置增益值，基于设定的增益值将外部三色输入数据转换为四色数据，并响应于省电模式信号产生调光信号。面板驱动程序根据液晶面板上的四色数据显示图像。逆变器基于调光信号产生灯驱动电压，并且背光单元响应于灯驱动电压产生光，并将所产生的光照射到液晶面板。

10. 发明申请

US20120056907A1 METHOD AND DEVICE FOR DRIVING LOCAL DIMMING IN LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：用于驱动液晶显示装置中的本地调光的方法和装置
公开(公告)号：US20120056907A1
公开(公告)日：2012-03-08
申请号：US13177964
申请日：2011-07-07
申请人： Jung-Hwan Lee , Kyung-Joon Kwon , Dong-Woo Kim , Hee-Won Ahn
发明人： Jung-Hwan Lee , Kyung-Joon Kwon , Dong-Woo Kim , Hee-Won Ahn
IPC分类号： G09G5/10 , G09G3/36
CPC分类号： G09G3/3426 , G09G3/3648 , G09G2320/0646 , G09G2320/066 , G09G2360/16
摘要： The present invention provides method and device for driving local dimming in a liquid crystal display device which enables adaptive application of a gradation roll-off according to an image characteristic. The method for driving local dimming in a liquid crystal display device includes the steps of determining a local dimming value of each light emitting block by analyzing a received image data light emitting block by light emitting block of a backlight unit, producing a pixel compensating coefficient on a light quantity change of each pixel by using the local dimming value of each light emitting block, producing a required gradient value by compensating the received image data by using the pixel compensating coefficient, and producing maximum required gradient values for one frame and an average value of the maximum required gradient values for one frame, determining a roll-off end point of a gradient roll-off section according to the maximum required gradient value, and determining a roll-off starting point of the gradient roll-off section according to the average of the maximum required gradient values, setting a gradient change curve of the gradient roll-off section by using the roll-off starting point and end point, and producing a gain value of each pixel from the gradient change curve, and forwarding an output gradient value by correcting the required gradient value by using the gain value of each pixel.
摘要翻译：本发明提供一种用于驱动液晶显示装置中的局部调光的方法和装置，其能够根据图像特性自动应用渐变滚降。用于驱动液晶显示装置中的局部调光的方法包括以下步骤：通过背光单元的发光块分析接收到的图像数据发光块来确定每个发光块的局部调光值，产生像素补偿系数通过使用每个发光块的局部调光值，每个像素的光量变化，通过使用像素补偿系数补偿接收到的图像数据并产生一帧的最大所需梯度值并产生平均值，产生所需的梯度值的一帧的最大所需梯度值，根据最大所需梯度值确定梯度滚降部分的滚降终点，并根据所述梯度滚降部分的滚降起点确定最大所需梯度值的平均值，通过使用滚动设置梯度滚降部分的梯度变化曲线离开起点和终点，并从梯度变化曲线产生每个像素的增益值，并通过使用每个像素的增益值校正所需的梯度值来转发输出梯度值。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式