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1. 发明申请

WO2008066695A2 ACTIVE MATRIX DISPLAY COMPENSATING METHOD 审中-公开
标题翻译：有源矩阵显示补偿方法
公开(公告)号：WO2008066695A2
公开(公告)日：2008-06-05
申请号：PCT/US2007/023801
申请日：2007-11-15
申请人： EASTMAN KODAK COMPANY , LEVEY, Charles, L. , HAMER, John, William
发明人： LEVEY, Charles, L. , HAMER, John, William
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/006 , G09G2300/0842 , G09G2320/0295 , G09G2320/043
摘要： Compensating for changes in the threshold voltage of the drive transistor of an OLED drive circuit, the drive transistor includes a first electrode, second electrode, and gate electrode; connecting a first voltage source to the first electrode, and an OLED device to the second electrode and to a second voltage source; providing a test voltage to the gate electrode and connecting to the OLED drive circuit a test circuit that includes an adjustable current mirror causing voltage applied to the current mirror to be at a first test level; providing a test voltage to the gate electrode of the drive transistor and connecting the test circuit to the OLED device producing a second test level after the drive transistor and the OLED device age; and using the first and second test levels to calculate changes in the voltage applied to the gate electrode to compensate for drive transistor aging.
摘要翻译：补偿OLED驱动电路的驱动晶体管的阈值电压的变化，所述驱动晶体管包括第一电极，第二电极和栅电极; 将第一电压源连接到所述第一电极，将OLED器件连接到所述第二电极和第二电压源; 向所述栅电极提供测试电压并且将包括可调电流镜的测试电路连接到所述OLED驱动电路，所述可调电流镜使施加到所述电流镜的电压处于第一测试电平; 在所述驱动晶体管和所述OLED器件老化之后，向所述驱动晶体管的栅电极提供测试电压并将所述测试电路连接到所述OLED器件，以产生第二测试电平; 并使用第一和第二测试电平来计算施加到栅电极的电压的变化，以补偿驱动晶体管老化。

2. 发明申请

WO2009145881A1 COMPENSATION SCHEME FOR MULTI-COLOR ELECTROLUMINESCENT DISPLAY 审中-公开
标题翻译：多色电致发光显示器的补偿方案
公开(公告)号：WO2009145881A1
公开(公告)日：2009-12-03
申请号：PCT/US2009/003168
申请日：2009-05-22
申请人： EASTMAN KODAK COMPANY , LEVEY, Charles, L. , WINTERS, Dustin , HAMER, John, W.
发明人： LEVEY, Charles, L. , WINTERS, Dustin , HAMER, John, W.
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/2003 , G09G2300/0426 , G09G2300/0443 , G09G2300/0452 , G09G2300/0465 , G09G2300/0842 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/046
摘要： A method of compensating for changes in the characteristics of transistors and electroluminescent devices in an electroluminescent display, includes: providing an electroluminescent display having a two-dimensional array of subpixels arranged forming each pixel having at least three subpixels of different colors, with each having an electroluminescent device and a drive transistor, wherein each electroluminescent device is driven by the corresponding drive transistor; providing in each pixel a readout circuit for one of the subpixels of a specific color having a first readout transistor and a second readout transistor connected in series; using the readout circuit to derive a correction signal based on the characteristics of at least one of the transistors in the specific color subpixel, or the electroluminescent device in the specific color subpixel, or both; and using the correction signal to adjust the drive signals.
摘要翻译：一种补偿电致发光显示器中的晶体管和电致发光器件的特性变化的方法包括：提供具有二维阵列阵列的电致发光显示器，所述子像素布置成每个具有至少三个不同颜色的子像素的像素，每个具有不同颜色的子像素电致发光器件和驱动晶体管，其中每个电致发光器件由相应的驱动晶体管驱动; 在每个像素中提供具有串联连接的第一读出晶体管和第二读出晶体管的特定颜色的子像素之一的读出电路; 使用读出电路基于特定颜色子像素中的至少一个晶体管或特定颜色子像素中的电致发光器件或两者的特性导出校正信号; 并使用校正信号调整驱动信号。

3. 发明申请

WO2009073090A1 ELECTROLUMINESCENT DISPLAY WITH INTERLEAVED 3T1C COMPENSATION 审中-公开
标题翻译：具有3T1C补偿功能的电致发光显示器
公开(公告)号：WO2009073090A1
公开(公告)日：2009-06-11
申请号：PCT/US2008/012996
申请日：2008-11-21
申请人： EASTMAN KODAK COMPANY , WHITE, Christopher Jason , LEVEY, Charles, L. , MILLER, Michael Eugene , LEON, Felipe Antonio
发明人： WHITE, Christopher Jason , LEVEY, Charles, L. , MILLER, Michael Eugene , LEON, Felipe Antonio
IPC分类号： G09G3/32
CPC分类号： G09G3/3225 , G09G3/007 , G09G2300/0417 , G09G2300/0426 , G09G2300/0465 , G09G2310/0232 , G09G2320/029 , G09G2320/043 , G09G2320/045 , G09G2320/046 , G09G2320/0626
摘要： A method of compensating for changes in the characteristics of transistors and EL devices in an EL display, includes providing an EL display having a two-dimensional array of EL devices arranged in rows and columns, wherein each EL device is driven by a drive circuit in response to a drive signal; providing a first drive circuit for an EL device having three transistors and providing a second drive circuit for an EL device having only two transistors, and wherein a first column in the display includes at least one first drive circuit and an adjacent second column includes at least one second drive circuit; deriving a correction signal based on the characteristics of a transistor in a first drive circuit, or the EL device; and using the correction signal to adjust the drive signals applied to the first drive circuit and one or more adjacent second drive circuits.
摘要翻译：一种补偿EL显示器中的晶体管和EL器件的特性变化的方法包括提供具有排列成行和列的EL器件的二维阵列的EL显示器，其中每个EL器件由驱动电路驱动响应驱动信号; 为具有三个晶体管的EL器件提供第一驱动电路，并为仅具有两个晶体管的EL器件提供第二驱动电路，并且其中显示器中的第一列包括至少一个第一驱动电路和相邻的第二列至少包括一秒驱动电路; 基于第一驱动电路中的晶体管或EL器件的特性导出校正信号; 以及使用所述校正信号来调整施加到所述第一驱动电路和一个或多个相邻的第二驱动电路的驱动信号。

4. 发明申请

WO2008066695A3 ACTIVE MATRIX DISPLAY COMPENSATING METHOD 审中-公开
标题翻译：主动矩阵显示补偿方法
公开(公告)号：WO2008066695A3
公开(公告)日：2008-08-21
申请号：PCT/US2007023801
申请日：2007-11-15
申请人： EASTMAN KODAK CO , LEVEY CHARLES L , HAMER JOHN WILLIAM
发明人： LEVEY CHARLES L , HAMER JOHN WILLIAM
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/006 , G09G2300/0842 , G09G2320/0295 , G09G2320/043
摘要： Compensating for changes in the threshold voltage of the drive transistor of an OLED drive circuit, the drive transistor includes a first electrode, second electrode, and gate electrode; connecting a first voltage source to the first electrode, and an OLED device to the second electrode and to a second voltage source; providing a test voltage to the gate electrode and connecting to the OLED drive circuit a test circuit that includes an adjustable current mirror causing voltage applied to the current mirror to be at a first test level; providing a test voltage to the gate electrode of the drive transistor and connecting the test circuit to the OLED device producing a second test level after the drive transistor and the OLED device age; and using the first and second test levels to calculate changes in the voltage applied to the gate electrode to compensate for drive transistor aging.
摘要翻译：补偿OLED驱动电路的驱动晶体管的阈值电压的变化，驱动晶体管包括第一电极，第二电极和栅电极; 将第一电压源连接到第一电极，将OLED器件连接到第二电极和第二电压源; 向所述栅电极提供测试电压并连接到所述OLED驱动电路，所述测试电路包括可施加电流镜的电压处于第一测试电平的可调电流镜; 向驱动晶体管的栅电极提供测试电压并将测试电路连接到OLED器件，在驱动晶体管和OLED器件老化之后产生第二测试电平; 并且使用第一和第二测试电平来计算施加到栅电极的电压的变化以补偿驱动晶体管老化。

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