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1. 发明申请

WO2006062965A3 AN OLED DISPLAY WITH AGING COMPENSATION 审中-公开
公开(公告)号：WO2006062965A3
公开(公告)日：2006-06-15
申请号：PCT/US2005/044097
申请日：2005-12-06
申请人： EASTMAN KODAK COMPANY , COK, Ronald, Steven , LEON, Felipe, Antonio
发明人： COK, Ronald, Steven , LEON, Felipe, Antonio
IPC分类号： G09G3/32
摘要： An OLED display, comprising: a) a substrate (10); b) independently controlled light emitting elements (12) formed on the substrate, the light emitting elements having an output that changes with time or use; c) active-matrix circuits formed on the substrate for driving the light-emitting elements wherein the performance of some portion of the active matrix circuitry is altered in response to incident radiation, and wherein an incident light absorbing or reflecting layer prevents light from irradiating the portion responsive to incident radiation; d) a current measuring device (14) for sensing the total current used by the display to produce a current signal; and e) a controller (15) responsive to the current signal for calculating a correction signal for the light emitting elements and applying the correction signal to input image signals to produce corrected input image signals that compensate for the changes in the output of the light emitting elements.

2. 发明申请

WO2007053783A1 AN OLED DISPLAY WITH AGING COMPENSATION 审中-公开
标题翻译：具有老化补偿的OLED显示器
公开(公告)号：WO2007053783A1
公开(公告)日：2007-05-10
申请号：PCT/US2006/043187
申请日：2006-11-07
申请人： EASTMAN KODAK COMPANY , COK, Ronald, Steven , LEON, Felipe, Antonio
发明人： COK, Ronald, Steven , LEON, Felipe, Antonio
IPC分类号： G09G3/32
CPC分类号： G09G3/3216 , G09G3/3225 , G09G2320/0285 , G09G2320/029 , G09G2320/041 , G09G2320/043 , G09G2320/0693 , G09G2340/10
摘要： Compensating image signals for driving an OLED display having a plurality of light-emitting elements having outputs that change with time or use, comprising: a) obtaining a measured or estimated first value of the current used by individual elements in response to known image signals; b) specifying multiple groups of elements, wherein at least one of the specified groups contains at least one element common to another specified group; c) measuring total currents used by each of the specified groups in response to known image signals; d) forming an estimated second value of the current used by individual elements based on the measured total currents, e) calculating correction values for individual elements based on the difference between the first and second current values, and f) employing the correction values to compensate image signals for the changes in the output of the elements and produce compensated image signals.
摘要翻译：补偿图像信号，用于驱动具有多个具有随时间或使用变化的输出的发光元件的OLED显示器，包括：a）响应于已知的图像信号获得各个元件使用的电流的测量或估计的第一值; b）指定多组元素，其中指定组中的至少一个包含至少一个与另一指定组共有的元素; c）响应于已知图像信号测量每个指定组使用的总电流; d）基于所测量的总电流形成各个元件使用的电流的估计第二值，e）基于第一和第二电流值之间的差计算各个元件的校正值，以及f）采用校正值进行补偿图像信号用于元件输出的变化并产生补偿的图像信号。

3. 发明申请

WO2010053514A1 ELECTROLUMINESCENT DISPLAY WITH COMPENSATION OF EFFICIENCY VARIATIONS 审中-公开
标题翻译：具有效率变化补偿的电致发光显示器
公开(公告)号：WO2010053514A1
公开(公告)日：2010-05-14
申请号：PCT/US2009/005833
申请日：2009-10-27
申请人： EASTMAN KODAK COMPANY , LEON, Felipe, Antonio
发明人： LEON, Felipe, Antonio
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2310/0297 , G09G2320/0233 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： An electroluminescent (EL) subpixel (60) having a readout transistor (80) is driven by a current source (160) when the drive transistor (70) is non-conducting. This produces an emitter-voltage signal from which an aging signal representing the efficiency of the EL emitter (50) can be computed. The aging signal is used to adjust an input signal (85) to produce a compensated drive signal (95) to compensate for changes in efficiency of the EL emitter.
摘要翻译：当驱动晶体管（70）不导通时，具有读出晶体管（80）的电致发光（EL）子像素（60）由电流源（160）驱动。这产生一个发射极 - 电压信号，由此可以计算代表EL发射极（50）效率的老化信号。老化信号用于调整输入信号（85）以产生补偿的驱动信号（95），以补偿EL发射器的效率变化。

4. 发明申请

WO2008091329A1 OLED DISPLAY WITH AGING AND EFFICIENCY COMPENSATION 审中-公开
标题翻译：具有老化和有效补偿的OLED显示
公开(公告)号：WO2008091329A1
公开(公告)日：2008-07-31
申请号：PCT/US2007/025474
申请日：2007-12-13
申请人： EASTMAN KODAK COMPANY , LEON, Felipe, Antonio , PARRETT, Gary , WHITE, Christopher, J.
发明人： LEON, Felipe, Antonio , PARRETT, Gary , WHITE, Christopher, J.
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/3241 , G09G2300/0814 , G09G2300/0819 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/041 , G09G2320/043 , G09G2320/045
摘要： Compensated drive circuit adjusting for changes in the threshold voltage of a drive transistor and for aging of an OLED device, comprising: a data line carrying analog data representative of the brightness level, and a select line; the drive transistor connected to a power supply and to the OLED device such that when the select line is activated and a voltage from the data line is applied to the gate electrode of such transistor and current proportional to the applied voltage will flow through the drain and source electrodes through the OLED device; circuitry for measuring first and second parameters associated with the drive circuitry and responsive to the measured first and second parameters for computing offset voltages to adjust for changes in the threshold voltage of the drive transistors and for aging of the OLED device.
摘要翻译：补偿驱动电路调节驱动晶体管的阈值电压的变化和OLED器件的老化，包括：承载代表亮度级的模拟数据的数据线和选择线; 所述驱动晶体管连接到电源和所述OLED器件，使得当所述选择线被激活并且来自所述数据线的电压被施加到所述晶体管的栅电极时，与所施加的电压成比例的电流将流过所述漏极，并且源极通过OLED器件; 用于测量与驱动电路相关联的第一和第二参数的电路，并响应于测量的第一和第二参数来计算偏移电压，以调整驱动晶体管的阈值电压的变化和OLED器件的老化。

5. 发明申请

WO2010059189A1 ELECTROLUMINESCENT DISPLAY INITIAL NON-UNIFORMITTY-COMPENSATED DRIVE SIGNAL 审中-公开
标题翻译：电致发光显示器初始非均匀补偿驱动信号
公开(公告)号：WO2010059189A1
公开(公告)日：2010-05-27
申请号：PCT/US2009/006075
申请日：2009-11-12
申请人： EASTMAN KODAK COMPANY , LEON, Felipe, Antonio , WHITE, Chrisopher, Jason , PARRETT, Gary , PRIMERANO, Bruno
发明人： LEON, Felipe, Antonio , WHITE, Chrisopher, Jason , PARRETT, Gary , PRIMERANO, Bruno
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/2092 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693 , G09G2360/16
摘要： An electroluminescent (EL) panel with 2T1C subpixels is compensated for initial nonuniformity ("mura"). The current of each subpixel is measured at a selected time to provide a status signal representing the characteristics of the subpixel. A compensator receives a linear code value and changes it according to the status signals. A linear source driver drives the panel with the changed code values.
摘要翻译：具有2T1C子像素的电致发光（EL）面板被补偿初始不均匀性（“mura”）。在选定的时刻测量每个子像素的电流，以提供表示子像素的特性的状态信号。补偿器接收线性代码值，并根据状态信号进行更改。线性源驱动器驱动面板更改的代码值。

6. 发明申请

WO2010080113A1 DIGITAL-DRIVE ELECTROLUMINESCENT DISPLAY WITH AGING COMPENSATION 审中-公开
标题翻译：具有老化补偿功能的数字驱动电致发光显示器
公开(公告)号：WO2010080113A1
公开(公告)日：2010-07-15
申请号：PCT/US2009/006594
申请日：2009-12-16
申请人： GLOBAL OLED TECHNOLOGY LLC. , LEVEY, Charles, I. , LEON, Felipe, Antonio , HAMER, John, W. , PARRETT, Gary , WHITE, Christopher, Jason
发明人： LEVEY, Charles, I. , LEON, Felipe, Antonio , HAMER, John, W. , PARRETT, Gary , WHITE, Christopher, Jason
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/2022 , G09G2300/0819 , G09G2320/0295 , G09G2320/041 , G09G2320/043 , G09G2320/045
摘要： An electroluminescent (EL) subpixel driven by a digital-drive scheme has a readout transistor driven by a current source when the drive transistor is non-conducting. This produces an emitter-voltage signal from which an aging signal representing the efficiency of the EL emitter can be computed. The aging signal is used to determine the loss in current of the subpixel when active, and an input signal is adjusted to provide increased on-time to compensate for voltage rise and efficiency loss of the EL emitter. Variations due to temperature can also be compensated for.
摘要翻译：由数字驱动方案驱动的电致发光（EL）子像素在驱动晶体管不导通时具有由电流源驱动的读出晶体管。这产生一个发射极 - 电压信号，由此可以计算代表EL发射器的效率的老化信号。老化信号用于确定有源时子像素的电流损耗，并调整输入信号以提供增加的导通时间，以补偿EL发射极的电压上升和效率损失。温度变化也可以补偿。

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