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公开(公告)号：US20070269118A1
公开(公告)日：2007-11-22
申请号：US11749827
申请日：2007-05-17
IPC分类号： G06K9/36
CPC分类号： G09G3/3688 , G09G3/3611 , G09G2330/06 , G09G2340/02 , G09G2340/06 , G09G2350/00 , G09G2360/16 , G09G2360/18 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/186 , H04N19/196 , H04N19/423 , H04N19/426 , H04N19/428 , H04N19/70
摘要： An image processing circuit has a color information converter configured to convert image data including a plurality of color information into luminance data and color difference data, an activity detector whether amount of activity predetermined according to differences between the luminance data in a plurality of pixels in each of pixel blocks and differences between the color difference data in the plurality of pixels exceeds a predetermined first threshold value for each pixel block including a plurality of pixels adjacent to each other, and a encoding unit configured to perform a first encoding process by generating m (m is an integer of three or larger) representative values corresponding to the luminance data and the color difference data in the plurality of pixels in the pixel block that the activity detector determines to exceed the first threshold value, and perform a second encoding process by generating n (n is an integer of two or more and the integer larger than m) representative values corresponding to the luminance data and the color difference data in the plurality of pixels in the pixel block that the activity detector determines not to exceed the first threshold value, to generate encoded data.
摘要翻译： 图像处理电路具有颜色信息转换器，被配置为将包括多个颜色信息的图像数据转换为亮度数据和色差数据，活动检测器，根据每个中的多个像素中的亮度数据之间的差异来预定的活动量 的像素块和所述多个像素中的色差数据之间的差异对于包括彼此相邻的多个像素的每个像素块超过预定的第一阈值，以及编码单元，被配置为通过产生m（ m是三个以上的整数）代表值，其对应于活动检测器判定为超过第一阈值的像素块中的多个像素中的亮度数据和色差数据，并且通过生成 n（n是2以上的整数，大于m的整数）表示 对应于活动检测器确定不超过第一阈值的像素块中的多个像素中的亮度数据和色差数据的相关值，以生成编码数据。
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公开(公告)号：US07676528B2
公开(公告)日：2010-03-09
申请号：US11231762
申请日：2005-09-22
IPC分类号： G09G5/00
CPC分类号： G06F3/1415 , G09G3/2096 , G09G3/3688 , G09G5/006 , G09G5/008 , G09G2310/027 , G09G2330/06 , G09G2340/16 , G09G2370/045 , G09G2370/047
摘要： An image data processing apparatus includes: a data dividing unit dividing arithmetic image data into arithmetic pixel data corresponding to a signal line of a display device; an adder adding first data and second data; and a data delaying unit delaying the added data, wherein the first data is the divided arithmetic pixel data from the data dividing unit, and the second data is the delayed added arithmetic pixel data from the data delaying unit.
摘要翻译： 图像数据处理装置包括：数据划分单元，将运算图像数据分割成与显示装置的信号线对应的算术像素数据; 加法器，其添加第一数据和第二数据; 以及数据延迟单元延迟所添加的数据，其中所述第一数据是来自所述数据分割单元的分割的运算像素数据，并且所述第二数据是来自所述数据延迟单元的延迟加法运算像素数据。
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公开(公告)号：US07027027B2
公开(公告)日：2006-04-11
申请号：US10226198
申请日：2002-08-23
IPC分类号： G09G3/36
CPC分类号： H03F3/211 , G09G3/3614 , G09G2310/027 , H03F1/0277 , H03F2203/45371 , H03F2203/7236 , H03K5/2481
摘要： A differential amplifying circuit according to the present invention, comprising: a first differential pair having first and second transistors of the same conduction type, which outputs differential output signals in accordance with differential input signals supplied to gate terminals of said first and second transistors from differential output terminals; a second differential pair having third and fourth transistors having the same conduction type as that of said first and second transistors with threshold voltages different from each other, which outputs differential output signals in accordance with said differential input signals supplied to gate terminals of said third and fourth transistors from said differential output terminals; a bias supply part which supplies bias current to said first and second differential parts; and a differential pair control part which controls whether or not to operate said second differential pair.
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公开(公告)号：US06806860B2
公开(公告)日：2004-10-19
申请号：US09964465
申请日：2001-09-28
IPC分类号： G09G336
CPC分类号： G09G3/3696 , G09G3/2011 , G09G3/3688 , G09G2310/027 , G09G2330/021 , G09G2360/16
摘要： There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.
摘要翻译： 公开了一种液晶驱动电路，其被配置为将数字灰度数据的模拟电压提供给多条信号线中的每条信号线，所述电路包括：参考电压产生电路，被配置为输出对应于每个所述数字 灰度数据; 多个缓冲放大器，被配置为单独地执行所述各个模拟参考电压的缓冲; 灰度模式电路，被配置为基于从外部提供的灰度模式信号来确定所述数字灰度数据的灰度数; 以及放大器使能电路，被配置为基于所述灰度级模式电路的输出信号将所述多个缓冲放大器中的每一个设置为使能状态或禁用状态。
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公开(公告)号：US08159433B2
公开(公告)日：2012-04-17
申请号：US12190719
申请日：2008-08-13
CPC分类号： G09G3/3648 , G09G2320/0252 , G09G2320/0261 , G09G2320/0285 , G09G2340/16
摘要： A liquid crystal drive apparatus includes: a storage unit storing an enhancement correction coefficient having (1/2n)×m below a decimal point where n is 3 or 4, and m is an integer which is at least 0 and less than 2n; a frame memory holding digital image information of a second frame located one frame before a first frame; a first computation unit computing a difference between digital image information of the first frame and digital image information of the second frame; a second computation unit computing enhancement image information for conducting enhancement display of an image on a liquid crystal panel on the basis of the difference and the enhancement correction coefficient; a third computation unit computing addition information by adding the digital image information of the second frame to the enhancement image information; and a drive signal generation unit generating a drive signal on the basis of the addition information to drive the liquid crystal panel.
摘要翻译： 液晶驱动装置包括：存储单元，其存储具有小于n或3的小数点以下的（1 / 2n）×m的增强校正系数，m是至少为0且小于2n的整数; 保持位于第一帧之前一帧的第二帧的数字图像信息的帧存储器; 第一计算单元，计算第一帧的数字图像信息和第二帧的数字图像信息之间的差; 第二计算单元，基于所述差和所述增强校正系数，计算用于在液晶面板上进行图像的增强显示的增强图像信息; 第三计算单元通过将第二帧的数字图像信息与增强图像信息相加来计算加法信息; 以及驱动信号生成单元，根据加法信息生成驱动信号，驱动液晶面板。
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公开(公告)号：US20080117237A1
公开(公告)日：2008-05-22
申请号：US12016511
申请日：2008-01-18
CPC分类号： G09G3/3696 , G09G3/2011 , G09G3/3688 , G09G2310/027 , G09G2330/021 , G09G2360/16
摘要： There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.
摘要翻译： 公开了一种液晶驱动电路，其被配置为将数字灰度数据的模拟电压提供给多条信号线中的每条信号线，所述电路包括：参考电压产生电路，被配置为输出对应于每个所述数字 灰度数据; 多个缓冲放大器，被配置为单独地执行所述各个模拟参考电压的缓冲; 灰度模式电路，被配置为基于从外部提供的灰度模式信号来确定所述数字灰度数据的灰度数; 以及放大器使能电路，被配置为基于所述灰度级模式电路的输出信号将所述多个缓冲放大器中的每一个设置为使能状态或禁用状态。
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公开(公告)号：US20070279574A1
公开(公告)日：2007-12-06
申请号：US11754704
申请日：2007-05-29
IPC分类号： G02F1/13
CPC分类号： G09G3/3648 , G09G3/3688 , G09G2320/0252 , G09G2320/0261 , G09G2320/103 , G09G2360/18
摘要： A liquid crystal display device comprising: a memory which receives an image signal, and which stores image data; and a correction data generation circuit that performs overdrive processing when the image data is a moving image, the correction data generation circuit having: a subtracter which performs subtraction processing after receiving previous frame image data outputted from the memory and current frame image data; a multiplier which performs multiplication processing by a predetermined multiplication factor after receiving a result of subtraction by the subtracter; and an adder which performs addition processing after receiving a result of multiplication by the multiplier and the current frame image data or the previous frame image data outputted from the memory.
摘要翻译： 一种液晶显示装置，包括：存储器，其接收图像信号，并存储图像数据; 以及校正数据生成电路，其在图像数据为运动图像时进行过驱动处理，所述校正数据生成电路具有：减法器，在从所述存储器输出的前一帧图像数据和当前帧图像数据之后进行减法处理; 乘法器，其在接收到减法器的减法结果之后，通过预定乘法因子执行乘法处理; 以及加法器，其在接收到乘法器的乘法结果和当前帧图像数据或从存储器输出的前一帧图像数据之后执行加法处理。
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公开(公告)号：US20060221099A1
公开(公告)日：2006-10-05
申请号：US11231762
申请日：2005-09-22
IPC分类号： G09G5/00
CPC分类号： G06F3/1415 , G09G3/2096 , G09G3/3688 , G09G5/006 , G09G5/008 , G09G2310/027 , G09G2330/06 , G09G2340/16 , G09G2370/045 , G09G2370/047
摘要： An image data processing apparatus includes: a data dividing unit dividing arithmetic image data into arithmetic pixel data corresponding to a signal line of a display device; an adder adding first data and second data; and a data delaying unit delaying the added data, wherein the first data is the divided arithmetic pixel data from the data dividing unit, and the second data is the delayed added arithmetic pixel data from the data delaying unit.
摘要翻译： 图像数据处理装置包括：数据划分单元，将运算图像数据分割成与显示装置的信号线对应的算术像素数据; 加法器，其添加第一数据和第二数据; 以及数据延迟单元延迟所添加的数据，其中所述第一数据是来自所述数据分割单元的分割的运算像素数据，并且所述第二数据是来自所述数据延迟单元的延迟加法运算像素数据。
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公开(公告)号：US06411162B1
公开(公告)日：2002-06-25
申请号：US09813958
申请日：2001-03-22
IPC分类号： H03F345
摘要： In an amplifier device, a negative output voltage (−) of a differential amplifier stage corresponding to an input signal voltage (Vin) is supplied to the gate of Output transistor M25 for charging electrical charges to Capacitive load (80). A current corresponding to a positive output voltage (+) of the differential amplifier stage is supplied to Node (A) through which the gate of Output transistor M26 for discharging electrical charges from Capacitive load (80) is connected to Constant current source (4). This current becomes a value (Iy+&Dgr;I) according to the voltage (Vin). By changing the gate voltage of Output transistor M26, it enters ON, and the electrical charges are discharged as a current I3 from Capacitive load (80). The voltage (Vin) is converted to a current by Voltage-current converter (1), and Current-voltage converter (2) then converts this current to a voltage. It is thereby possible to increase the driving ability of Output transistor M26 and to perform a response operation at high speed with low power consumption only by changing the current corresponding to the positive output voltage (+) of the differential pair.
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公开(公告)号：US08188993B2
公开(公告)日：2012-05-29
申请号：US12405410
申请日：2009-03-17
CPC分类号： G09G3/3611 , G09G2320/0261 , G09G2340/16 , H04N5/208
摘要： A liquid crystal drive device includes: a frame memory retaining image information of a second frame immediately preceding a first frame; a first calculator calculating a first difference between image information of the first frame and the image information of the second frame; an edge enhancement processor performing edge enhancement processing of the first frame for each of pixels of the first frame and outputting edge enhancement image information; a selector selecting and outputting the edge enhancement image information or image information of the first frame; a second calculator calculating a second difference between an output of the selector and the image information of the second frame; an enhancement coefficient calculator multiplying an output of the second calculator by an enhancement correction coefficient; and a third calculator calculating sum information by adding together an output of the enhancement coefficient calculator and the image information of the second frame.
摘要翻译： 液晶驱动装置包括：帧存储器，其保持紧接在第一帧之前的第二帧的图像信息; 计算第一帧的图像信息和第二帧的图像信息之间的第一差异的第一计算器; 边缘增强处理器对第一帧的每个像素执行第一帧的边缘增强处理并输出边缘增强图像信息; 选择器，选择并输出第一帧的边缘增强图像信息或图像信息; 计算所述选择器的输出和所述第二帧的图像信息之间的第二差的第二计算器; 增强系数计算器将所述第二计算器的输出乘以增强校正系数; 以及第三计算器，通过将所述增强系数计算器的输出和所述第二帧的图像信息相加在一起来计算和信息。
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