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公开(公告)号：US06870322B1
公开(公告)日：2005-03-22
申请号：US10628934
申请日：2003-07-29
CPC分类号： G09G3/3216 , G09G3/3225 , G09G2320/0238 , G09G2320/029 , G09G2320/041 , G09G2320/046
摘要： An organic EL display device which individually controls the amount of current of organic EL elements, which are arranged in a matrix of pixels, according to an input image signal, comprising total current detection circuitry for detecting the total current flowing to all the organic EL elements arranged in the pixel matrix, offset voltage setting circuitry for determining an offset voltage to offset the input image signal so as to apply a voltage which causes the current to start flowing to the organic EL elements according to a black level of the input image signal, and offset voltage control circuitry for controlling the offset voltage, which is responsive to the offset voltage setting circuitry, according to the total current detected by the total current detection circuitry.
摘要翻译： 一种有机EL显示装置，其根据输入图像信号单独地控制排列成像素矩阵的有机EL元件的电流量，该总电流检测电路用于检测流向所有有机EL元件的总电流 偏移电压设置电路，用于确定偏移电压以偏移输入图像信号，以便根据输入图像信号的黑电平施加使电流开始流向有机EL元件的电压， 以及偏移电压控制电路，用于根据由总电流检测电路检测到的总电流来控制响应于偏移电压设置电路的偏移电压。
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公开(公告)号：US07982695B2
公开(公告)日：2011-07-19
申请号：US12418743
申请日：2009-04-06
IPC分类号： G09G3/30
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：US20090256783A1
公开(公告)日：2009-10-15
申请号：US12417916
申请日：2009-04-03
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0866 , G09G2320/0276
摘要： An electroluminescent display device having a first and a second power supply; a respective power supply line for each row, wherein each power supply line is placed along a horizontal direction and is connected to the respective first electrodes of the driving TFTs of the pixels in the corresponding row; a plurality of switches, each connected to one or more power supply lines, for selectively connecting the corresponding one or more power supply lines to either the first or the second power supply; a gate driver for selecting a gate line; and a selecting circuit for controlling the plurality of switches, wherein the selecting circuit causes the power supply line corresponding to the selected gate line to be connected to the first power supply, and the one or more power supply lines not corresponding to the selected gate line to be connected to the second power supply.
摘要翻译： 一种具有第一和第二电源的电致发光显示装置; 每行的相应电源线，其中每个电源线沿着水平方向放置，并且连接到相应行中的像素的驱动TFT的各自的第一电极; 多个开关，各自连接到一个或多个电源线，用于选择性地将相应的一个或多个电源线连接到第一或第二电源; 用于选择栅极线的栅极驱动器; 以及用于控制所述多个开关的选择电路，其中所述选择电路使与所选择的栅极线相对应的电源线连接到所述第一电源，并且所述一个或多个电源线不对应于所选择的栅极线 连接到第二电源。
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公开(公告)号：US20090207106A1
公开(公告)日：2009-08-20
申请号：US12369175
申请日：2009-02-11
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2310/0218 , G09G2320/0223 , G09G2320/0285 , G09G2330/021 , G09G2330/028
摘要： On a panel, a plurality of PVDD lines, each of which corresponds to a horizontal line of pixels and supplies power to the pixels of the horizontal line, are provided. A voltage drop correction unit that obtains a voltage drop before reaching the pixel, based on resistance in the plurality of power supply lines and currents flowing therein, and corrects display data so as to cancel the obtained voltage drop of the pixel. A display unevenness correction unit that corrects uneven brightness caused by a variation in a TFT characteristic of the pixel by performing a calculation using display data of the pixel and obtained correction data of the pixel.
摘要翻译： 在面板上，提供了多个PVDD线，每个PVDD线对应于水平线像素并且向水平线的像素供电。 一种电压降校正单元，其基于多个电源线中的电阻和在其中流动的电流来获得在到达像素之前的电压降，并校正显示数据，以抵消所获得的像素的电压降。 一种显示不均匀性校正单元，其通过使用像素的显示数据和所获得的像素的校正数据进行计算来校正由像素的TFT特性的变化引起的不均匀的亮度。
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公开(公告)号：US07973745B2
公开(公告)日：2011-07-05
申请号：US12369175
申请日：2009-02-11
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2310/0218 , G09G2320/0223 , G09G2320/0285 , G09G2330/021 , G09G2330/028
摘要： On a panel, a plurality of PVDD lines, each of which corresponds to a horizontal line of pixels and supplies power to the pixels of the horizontal line, are provided. A voltage drop correction unit that obtains a voltage drop before reaching the pixel, based on resistance in the plurality of power supply lines and currents flowing therein, and corrects display data so as to cancel the obtained voltage drop of the pixel. A display unevenness correction unit that corrects uneven brightness caused by a variation in a TFT characteristic of the pixel by performing a calculation using display data of the pixel and obtained correction data of the pixel.
摘要翻译： 在面板上，提供了多个PVDD线，每个PVDD线对应于水平线像素并且向水平线的像素供电。 一种电压降校正单元，其基于多个电源线中的电阻和在其中流动的电流来获得在到达像素之前的电压降，并校正显示数据，以抵消所获得的像素的电压降。 一种显示不均匀性校正单元，其通过使用像素的显示数据和所获得的像素的校正数据进行计算来校正由像素的TFT特性的变化引起的不均匀的亮度。
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公开(公告)号：US20090225072A1
公开(公告)日：2009-09-10
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：US07345660B2
公开(公告)日：2008-03-18
申请号：US10748007
申请日：2003-12-30
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0842 , G09G2320/0223 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/043 , G09G2320/0626
摘要： An organic electroluminescent display device in which display pixels containing organic electroluminescent elements are arranged in a matrix, comprising: a correction value formula storage section for storing a correction value formula or coefficients thereof that prescribes a relationship of pixel positions for display and brightness correction data of those pixels; a correction value output section for receiving the input of data for the positions of respective pixels, and outputs correction values for the respective pixels using the correction value formula or coefficients thereof stored in said correction value formula storage section; and the correction value output section corrects brightness data for each pixel using the correction value from said correction value output section according to the pixel position, to thereby perform display to the respective display pixels.
摘要翻译： 一种有机电致发光显示装置，其中包含有机电致发光元件的显示像素布置在矩阵中，包括：校正值公式存储部分，用于存储校正值公式或其系数，其规定用于显示的像素位置和亮度校正数据的关系 那些像素 校正值输出部分，用于接收各个像素的位置的数据输入，并且使用存储在所述校正值公式存储部分中的校正值公式或其系数输出各个像素的校正值; 并且校正值输出部分根据像素位置使用来自所述校正值输出部分的校正值来校正每个像素的亮度数据，从而对各个显示像素执行显示。
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公开(公告)号：US07164400B2
公开(公告)日：2007-01-16
申请号：US10767288
申请日：2004-01-28
IPC分类号： G09G3/30
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：US08207957B2
公开(公告)日：2012-06-26
申请号：US12417916
申请日：2009-04-03
IPC分类号： G09G5/00
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0866 , G09G2320/0276
摘要： An electroluminescent display device having a first and a second power supply; a respective power supply line for each row, wherein each power supply line is placed along a horizontal direction and is connected to the respective first electrodes of the driving TFTs of the pixels in the corresponding row; a plurality of switches, each connected to one or more power supply lines, for selectively connecting the corresponding one or more power supply lines to either the first or the second power supply; a gate driver for selecting a gate line; and a selecting circuit for controlling the plurality of switches, wherein the selecting circuit causes the power supply line corresponding to the selected gate line to be connected to the first power supply, and the one or more power supply lines not corresponding to the selected gate line to be connected to the second power supply.
摘要翻译： 一种具有第一和第二电源的电致发光显示装置; 每行的相应电源线，其中每个电源线沿着水平方向放置，并且连接到相应行中的像素的驱动TFT的各自的第一电极; 多个开关，各自连接到一个或多个电源线，用于选择性地将相应的一个或多个电源线连接到第一或第二电源; 用于选择栅极线的栅极驱动器; 以及用于控制所述多个开关的选择电路，其中所述选择电路使与所选择的栅极线相对应的电源线连接到所述第一电源，并且所述一个或多个电源线不对应于所选择的栅极线 连接到第二电源。
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公开(公告)号：US07834825B2
公开(公告)日：2010-11-16
申请号：US10599029
申请日：2005-03-17
IPC分类号： G09G3/30
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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