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公开(公告)号：US20090256854A1
公开(公告)日：2009-10-15
申请号：US12418743
申请日：2009-04-06
CPC分类号： G09G3/3233 , G09G2320/0285 , G09G2320/0295
摘要： Displaying an image with unevenness correction by measuring Vgs-Id characteristics of the transistors in a subset of pixels; approximating each characteristic using an equation of the form Id=(a(Vgs−b))c; calculating a value c′ using the approximations; measuring the characteristics of the remaining pixels; approximating each of those characteristics by an equation of the same form, using c′ as the power for all of the approximations, calculating corrected image signals for each pixel using the respective approximations of the corresponding pixels of the display device to correct for unevenness; and applying the corrected image signals to the corresponding pixels of the display device to display a corresponding image with unevenness correction.
摘要翻译： 通过测量像素子集中的晶体管的Vgs-Id特性来显示具有不均匀性校正的图像; 使用形式Id =（a（Vgs-b））c的等式近似每个特征; 使用近似计算值c'; 测量剩余像素的特性; 使用c'作为所有近似的功率，通过相同形式的方程近似这些特征中的每一个，使用显示装置的相应像素的各个近似来计算每个像素的校正图像信号，以校正不均匀性; 以及将校正后的图像信号应用到显示装置的相应像素，以显示具有不均匀校正的相应图像。
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公开(公告)号：US20070210996A1
公开(公告)日：2007-09-13
申请号：US10599029
申请日：2005-03-17
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G2300/0842 , G09G2320/0285 , G09G2320/029 , G09G2320/043
摘要： An organic EL display apparatus including in each display pixel an organic EL element. A drive transistor supplies a drive current that depends on brightness data and having the display pixels arranged in a matrix form. The display includes a correction gain storage unit for storing display pixel positions and a correction gain for correcting the slope of the brightness-data-based drive current of the drive transistors in the display pixels; and a correction unit for correcting pixel-by-pixel brightness data depending on the pixel position using the correction gain stored in the correction gain storage unit into brightness data for the pixel to generate corrected brightness data, each of the display pixels is displayed by driving its drive transistor in response to the data generated by the correction gain storage unit and the correction unit and supplying the corresponding organic EL element with the drive current.
摘要翻译： 一种在每个显示像素中包括有机EL元件的有机EL显示装置。 驱动晶体管提供取决于亮度数据并具有以矩阵形式布置的显示像素的驱动电流。 显示器包括用于存储显示像素位置的校正增益存储单元和用于校正显示像素中的驱动晶体管的基于亮度数据的驱动电流的斜率的校正增益; 以及校正单元，用于使用存储在校正增益存储单元中的校正增益将根据像素位置的逐像素亮度数据校正为像素的亮度数据以产生校正亮度数据，每个显示像素通过驱动显示 其驱动晶体管响应于由校正增益存储单元和校正单元产生的数据，并向对应的有机EL元件提供驱动电流。
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公开(公告)号：US06919691B2
公开(公告)日：2005-07-19
申请号：US10629488
申请日：2003-07-29
CPC分类号： G09G3/3208 , G09G2320/0238 , G09G2320/0242 , G09G2320/0276 , G09G2320/0285 , G09G2320/041 , G09G2320/043 , G09G2360/145
摘要： An organic EL display device which displays by individually controlling an amount of current of organic EL elements, which are arranged in a matrix, according to an input image signal, comprising: a lookup table for storing gamma compensation data for compensating an image signal; storage means for storing an equation for performing gamma compensation of the input image signal; and table data generation means for generating table lookup data and storing such data in the lookup table on the basis of the equation stored in the storage means, and wherein the table data generated by the table data generation means is stored in the lookup table by an initialization operation to perform gamma compensation of the input image signal.
摘要翻译： 一种有机EL显示装置，其通过根据输入图像信号单独地控制排列成矩阵的有机EL元件的电流量来显示，包括：查找表，用于存储用于补偿图像信号的伽马补偿数据; 存储装置，用于存储用于对所述输入图像信号执行伽马补偿的等式; 以及表数据生成装置，用于根据存储在存储装置中的方程，生成表查找数据并将这些数据存储在查找表中，并且其中由表数据生成装置生成的表数据通过 执行输入图像信号的伽马补偿的初始化操作。
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公开(公告)号：US08416234B2
公开(公告)日：2013-04-09
申请号：US12393435
申请日：2009-02-26
IPC分类号： G09G5/00
CPC分类号： G09G3/3233 , G09G2320/0223 , G09G2320/0276 , G09G2320/0285 , G09G2320/043 , G09G2320/0673
摘要： To compensate for voltage drop on a power supply line. In a display device, pixel data is supplied to each of a plurality of pixels arranged in a matrix form and display is performed. Each pixel has a self-emissive element. A horizontal direction power supply line (horizontal direction PVDD) which supplies a power supply to each pixel is provided, and one end of the horizontal PVDD line is connected to a vertical power supply line (vertical PVDD line) that is connected to an external power supply terminal. Correction data corresponding to a voltage drop to the horizontal PVDD line due to a resistance in the vertical PVDD line is then obtained through a calculation based on pixel data, and the input pixel data is corrected using the correction data so as to reduce the influence of the voltage drop on the pixel current.
摘要翻译： 补偿电源线上的电压降。 在显示装置中，将像素数据提供给以矩阵形式布置的多个像素中的每一个，并执行显示。 每个像素具有自发射元件。 设置向每个像素供给电源的水平方向供电线（水平方向PVDD），并且水平PVDD线的一端连接到与外部电源连接的垂直电源线（垂直PVDD线） 供应终端。 然后通过基于像素数据的计算，获得对应于由于垂直PVDD线中的电阻而导致的对水平PVDD线的电压降的校正数据，并且使用校正数据来校正输入像素数据，以便减小 像素电流上的电压降。
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公开(公告)号：US07646362B2
公开(公告)日：2010-01-12
申请号：US10812546
申请日：2004-03-29
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/08 , G09G2300/0842 , G09G2310/027 , G09G2320/0626 , G09G2320/066 , G09G2330/021
摘要： A display device, for carrying out image display on a display panel by controlling current flowing in display elements for each pixel based on image data, including display setting circuitry for setting a relationship between image data and current values for current flowing in display elements in response to an input adjustment signal, to set contrast or brightness; estimation circuitry for estimating panel current flowing in all pixels when carrying out display for the display panel based on the image data; and current control circuitry for controlling actual panel current by correcting the set contrast or brightness based on the panel current estimated by the estimation circuitry.
摘要翻译： 一种显示装置，用于通过基于图像数据控制在每个像素的显示元件中流动的电流，在显示面板上进行图像显示，所述图像数据包括显示设置电路，用于设置用于响应于在显示元件中流动的电流的图像数据和当前值之间的关系 到输入调整信号，设置对比度或亮度; 估计电路，用于估计基于所述图像数据执行所述显示面板的显示时在所有像素中流动的面板电流; 以及电流控制电路，用于通过基于由估计电路估计的面板电流校正设置的对比度或亮度来控制实际面板电流。
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公开(公告)号：US20050052350A1
公开(公告)日：2005-03-10
申请号：US10767288
申请日：2004-01-28
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0809 , G09G2300/0842 , G09G2310/027 , G09G2320/0238 , G09G2320/029 , G09G2320/04 , G09G2320/041 , G09G2320/0626 , G09G2360/144 , G09G2360/16
摘要： To appropriately adjust luminance and a black level even when characteristics of an organic EL display element should be changed due to an environmental change or heat self-generation, to display a stable image. A current detector detects a level of a total panel current flowing in an organic EL panel. The detected level is subjected to A/D conversion before being supplied to an adder. Meanwhile, a video signal is supplied to a current calculator 24 to be converted into data corresponding to the level of a total panel current, before being supplied to the adder. The adder then compares an average total panel current level, estimated based on a video signal, and an actual total panel current level, to obtain a difference so that a black level for image data to be supplied to the panel is adjusted according to the difference.
摘要翻译： 即使在有机EL显示元件的特性由于环境变化或热自发而变化的情况下也能适当地调节亮度和黑色电平，以显示稳定的图像。 电流检测器检测在有机EL面板中流动的总面板电流的电平。 检测到的电平在被提供给加法器之前经受A / D转换。 同时，在被提供给加法器之前，将视频信号提供给电流计算器24，以转换成对应于总面板电流的电平的数据。 然后，加法器比较基于视频信号估计的平均总面板电流电平和实际总面板电流电平，以获得差值，以便根据差异来调整要提供给面板的图像数据的黑电平 。
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公开(公告)号：US20050023986A1
公开(公告)日：2005-02-03
申请号：US10629488
申请日：2003-07-29
CPC分类号： G09G3/3208 , G09G2320/0238 , G09G2320/0242 , G09G2320/0276 , G09G2320/0285 , G09G2320/041 , G09G2320/043 , G09G2360/145
摘要： An organic EL display device which displays by individually controlling an amount of current of organic EL elements, which are arranged in a matrix, according to an input image signal, comprising: a lookup table for storing gamma compensation data for compensating an image signal; storage means for storing an equation for performing gamma compensation of the input image signal; and table data generation means for generating table lookup data and storing such data in the lookup table on the basis of the equation stored in the storage means, and wherein the table data generated by the table data generation means is stored in the lookup table by an initialization operation to perform gamma compensation of the input image signal.
摘要翻译： 一种有机EL显示装置，其通过根据输入图像信号单独地控制排列成矩阵的有机EL元件的电流量而显示，包括：查找表，用于存储用于补偿图像信号的伽马补偿数据; 存储装置，用于存储用于对输入图像信号进行伽马补偿的等式; 以及表数据生成装置，用于根据存储在存储装置中的方程，生成表查找数据并将这些数据存储在查找表中，并且其中由表数据生成装置生成的表数据被存储在查找表中 执行输入图像信号的伽马补偿的初始化操作。
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公开(公告)号：US20070273701A1
公开(公告)日：2007-11-29
申请号：US11685225
申请日：2007-03-13
申请人： Seiichi Mizukoshi , Makoto Kohno , Kouichi Onomura
发明人： Seiichi Mizukoshi , Makoto Kohno , Kouichi Onomura
CPC分类号： G09G3/20 , G09G2320/0276 , G09G2320/0285 , G09G2340/0492
摘要： After a look-up table applies y correction to each of R, G, and B signals, a multiplier multiplies a y corrected signal by a gain. An adder adds an offset to an output of the multiplier and supplies a resultant gain/offset corrected signal to a display panel. Memories store entropy coded correction data, which can be expanded by corresponding expansion circuits and supplied to the multiplier and the adder, respectively.
摘要翻译： 在查询表对R，G和B信号中的每一个进行y校正之后，乘法器将y校正信号乘以增益。 加法器将偏移量加到乘法器的输出端，并将所得的增益/偏移校正信号提供给显示面板。 存储器存储熵编码校正数据，其可以由相应的扩展电路扩展并分别提供给乘法器和加法器。
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公开(公告)号：US08330678B2
公开(公告)日：2012-12-11
申请号：US11424245
申请日：2006-06-15
申请人： Makoto Kohno , Kouichi Onomura , Seiichi Mizukoshi
发明人： Makoto Kohno , Kouichi Onomura , Seiichi Mizukoshi
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G5/06 , G09G2300/0842 , G09G2320/0233 , G09G2320/0242 , G09G2320/0285 , G09G2320/029 , G09G2320/043 , G09G2360/147
摘要： Nonuniformity in an organic EL display device is effectively detected. All display pixels of an organic EL panel are turned on and the display is photographed with a digital camera. A computer performs image processing of the photographed image to detect an area in which unevenness exists. Then, a V-I curve of each pixel in the area is measured to calculate necessary correction values. The calculated correction values are stored in a memory for use in correcting a signal input to the organic EL panel.
摘要翻译： 有效地检测有机EL显示装置的不均匀性。 打开有机EL面板的所有显示像素，并用数码相机拍摄显示器。 计算机执行拍摄图像的图像处理以检测存在不均匀的区域。 然后，测量该区域中每个像素的V-I曲线以计算必要的校正值。 所计算的校正值被存储在用于校正输入到有机EL面板的信号的存储器中。
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公开(公告)号：US20090237334A1
公开(公告)日：2009-09-24
申请号：US12401126
申请日：2009-03-10
申请人： Seiichi Mizukoshi , Makoto Kohno , Kouichi Onomura
发明人： Seiichi Mizukoshi , Makoto Kohno , Kouichi Onomura
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G5/006 , G09G2300/0819 , G09G2310/04 , G09G2320/0233 , G09G2320/0285 , G09G2340/02 , G09G2360/12 , G09G2360/18
摘要： An OLED display having a correction circuit for producing corrected image data in response to the first image data and in response to correction data to correct for brightness unevenness due to TFT variations; a memory for storing first image data or correction data; a switch effective in first and second states in response to a function switching signal having first and second conditions, respectively; and circuitry for causing the switch to be in the first state to connect the memory to the image input signal interface and to provide the stored first image data to the panel as the second image data; and for causing the switch to be in the second state to connect the memory to the correction circuit, provide the stored correction data to the correction circuit, and provide the corrected image data to the panel as the second image data.
摘要翻译： 一种OLED显示器，其具有用于响应于第一图像数据产生校正图像数据的校正电路，并且响应于校正数据以校正由于TFT变化引起的亮度不均匀; 用于存储第一图像数据或校正数据的存储器; 分别响应于具有第一和第二条件的功能切换信号而在第一和第二状态下有效的开关; 以及用于使开关处于第一状态以将存储器连接到图像输入信号接口并将存储的第一图像数据提供给面板作为第二图像数据的电路; 并且为了使开关处于第二状态以将存储器连接到校正电路，将存储的校正数据提供给校正电路，并将修正后的图像数据作为第二图像数据提供给面板。
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