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公开(公告)号：US07636074B2
公开(公告)日：2009-12-22
申请号：US11427104
申请日：2006-06-28
申请人： John W. Hamer , Gary Parrett
发明人： John W. Hamer , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0866 , G09G2310/0254 , G09G2310/0256 , G09G2320/0295 , G09G2320/043
摘要： An apparatus for determining an adjustment to a signal voltage for compensating for changes in the threshold voltage (Vth) for a drive transistor in a pixel drive circuit in an active matrix OLED display having at least one OLED light-emitting pixel, comprising: the pixel drive circuit having a data line, a power supply line, a drive transistor; the drive transistor being electrically connected to the power supply line and to the OLED light-emitting pixel; the switch transistor being electrically connected to the gate electrode of the drive transistor and to the data line; first means for applying a first voltage to the power supply line; second means for applying a second voltage to the power supply line opposite in polarity to the first voltage; third means for producing a threshold-voltage-related signal on the data line; and fourth means responsive to the threshold-voltage-related signal for calculating the adjustment to the signal voltage.
摘要翻译： 一种用于确定用于补偿具有至少一个OLED发光像素的有源矩阵OLED显示器中的像素驱动电路中的驱动晶体管的阈值电压（Vth）的变化的用于补偿信号电压的调整的装置，包括：所述像素 具有数据线的驱动电路，电源线，驱动晶体管; 驱动晶体管电连接到电源线和OLED发光像素; 开关晶体管电连接到驱动晶体管的栅电极和数据线; 用于向所述电源线施加第一电压的第一装置; 将第二电压施加到与第一电压极性相反的电源线的第二装置; 用于在数据线上产生阈值电压相关信号的第三装置; 以及响应阈值电压相关信号的第四装置，用于计算对信号电压的调整。
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公开(公告)号：US08130182B2
公开(公告)日：2012-03-06
申请号：US12337668
申请日：2008-12-18
IPC分类号： G09G3/30
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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公开(公告)号：US20100123649A1
公开(公告)日：2010-05-20
申请号：US12272222
申请日：2008-11-17
申请人： John W. Hamer , Gary Parrett , Charles I. Levey
发明人： John W. Hamer , Gary Parrett , Charles I. Levey
IPC分类号： G09G3/30
CPC分类号： G09G3/3225 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Compensation is performed for initial nonuniformity or aging of drive transistors and electroluminescent (EL) emitters in 3T1C EL subpixels of an EL display, such as an organic light-emitting diode (OLED) display. A readout transistor connected to the EL emitter is used to readout the voltage of the emitter and compensation for ΔVth, ΔVEL, and OLED efficiency loss is performed using a model. Measurements are taken during a frame by driving a target subpixel at a higher luminance for a shorter time, then using the remaining time in the frame to measure. Measurements can be taken with an A/D converter or with a ramp generator and comparator. Compensation is performed for each subpixel individually.
摘要翻译： 对于诸如有机发光二极管（OLED）显示器的EL显示器的3T1C EL子像素中的驱动晶体管和电致发光（EL）发射体的初始不均匀性或老化，进行补偿。 连接到EL发射器的读出晶体管用于读出发射极的电压，并且使用模型进行补偿以达到＆Dgr; Vth，＆Dgr，VEL和OLED效率损失。 通过在更短的时间内以更高的亮度驱动目标子像素，然后使用帧中的剩余时间来测量，在帧期间进行测量。 可以用A / D转换器或斜坡发生器和比较器进行测量。 对每个子像素分别执行补偿。
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公开(公告)号：US20080001855A1
公开(公告)日：2008-01-03
申请号：US11427139
申请日：2006-06-28
申请人： John W. Hamer , Gary Parrett
发明人： John W. Hamer , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0847 , G09G2320/0233 , G09G2320/0295 , G09G2320/043
摘要： An apparatus for selecting a stressing voltage for compensating for changes in the threshold voltages (Vth) for drive transistors in pixel drive circuits in an active matrix OLED display having a plurality of OLED light-emitting pixels arranged in an array, comprising: each pixel drive circuit being electrically connected to a data line and a power supply line, and having a drive transistor; each drive transistor being electrically connected to its corresponding power supply line and to its corresponding OLED light-emitting pixel; each switch transistor being electrically connected to the gate electrode of its corresponding drive transistor and to its corresponding data line; first means for applying a first voltage to the power supply lines; second means for applying a second voltage to the power supply lines opposite in polarity to the first voltage; third means for producing a plurality of threshold-voltage-related signals on the data lines; fourth means responsive to the plurality of threshold-voltage-related signals for producing an average threshold-voltage-related signal; and fifth means responsive to the threshold-voltage-related signals for selecting the stressing voltage.
摘要翻译： 一种用于选择应力电压的装置，用于补偿具有排列在多个OLED发光像素的有源矩阵OLED显示器中的像素驱动电路中的驱动晶体管的阈值电压（V SUB）的变化 阵列，包括：每个像素驱动电路电连接到数据线和电源线，并且具有驱动晶体管; 每个驱动晶体管电连接到其对应的电源线和其相应的OLED发光像素; 每个开关晶体管电连接到其对应的驱动晶体管的栅电极及其对应的数据线; 用于向所述电源线施加第一电压的第一装置; 将第二电压施加到与第一电压极性相反的电源线的第二装置; 用于在数据线上产生多个阈值电压相关信号的第三装置; 响应于所述多个阈值电压相关信号以产生平均阈值电压相关信号的第四装置; 以及响应于所述阈值电压相关信号用于选择所述应力电压的第五装置。
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公开(公告)号：US20110279014A1
公开(公告)日：2011-11-17
申请号：US13191975
申请日：2011-07-27
CPC分类号： H01L27/3248 , H01L27/322 , H01L27/3255 , H01L27/3276 , H01L2227/323
摘要： An electroluminescent device having a plurality of current driven pixels arranged in rows and columns, such that when current is provided to a pixel it produces light, including each pixel having first and second electrodes and current responsive electroluminescent media disposed between the first and second electrodes; at least one chiplet having a thickness less than 20 micrometers; including transistor drive circuitry for controlling the operation of at least four pixels, the chiplet being mounted on a substrate and having connection pads; a planarization layer disposed over at least a portion of the chiplet; a first conductive layer over the planarization layer and connected to at least one of the connection pads; and a structure for providing electrical signals through the first conductive layer and at least one of the connection pads of the chiplet so that the transistor drive circuitry of the chiplet controls current to the four pixels.
摘要翻译： 一种具有排列成行和列的多个电流驱动像素的电致发光器件，使得当电流被提供给像素时，其产生光，包括具有第一和第二电极的每个像素以及设置在第一和第二电极之间的电流响应电致发光介质; 至少一个具有小于20微米厚度的小穗; 包括用于控制至少四个像素的操作的晶体管驱动电路，所述小芯片安装在衬底上并具有连接焊盘; 布置在所述小芯片的至少一部分上的平坦化层; 平坦化层上的第一导电层，并连接到至少一个连接焊盘; 以及用于通过第一导电层和小芯片的至少一个连接焊盘提供电信号的结构，使得小芯片的晶体管驱动电路控制电流到四个像素。
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公开(公告)号：US08358256B2
公开(公告)日：2013-01-22
申请号：US12272222
申请日：2008-11-17
申请人： John W. Hamer , Gary Parrett , Charles I. Levey
发明人： John W. Hamer , Gary Parrett , Charles I. Levey
IPC分类号： G09G3/30
CPC分类号： G09G3/3225 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Compensation is performed for initial nonuniformity or aging of drive transistors and electroluminescent (EL) emitters in 3T1C EL subpixels of an EL display, such as an organic light-emitting diode (OLED) display. A readout transistor connected to the EL emitter is used to readout the voltage of the emitter and compensation for ΔVth, ΔVEL, and OLED efficiency loss is performed using a model. Measurements are taken during a frame by driving a target subpixel at a higher luminance for a shorter time, then using the remaining time in the frame to measure. Measurements can be taken with an A/D converter or with a ramp generator and comparator. Compensation is performed for each subpixel individually.
摘要翻译： 对于诸如有机发光二极管（OLED）显示器的EL显示器的3T1C EL子像素中的驱动晶体管和电致发光（EL）发射体的初始不均匀性或老化，进行补偿。 连接到EL发射器的读出晶体管用于读出发射极的电压，并且使用模型进行补偿以达到＆Dgr; Vth，＆Dgr，VEL和OLED效率损失。 通过在更短的时间内以更高的亮度驱动目标子像素，然后使用帧中的剩余时间来测量，在帧期间进行测量。 可以用A / D转换器或斜坡发生器和比较器进行测量。 对每个子像素分别执行补偿。
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公开(公告)号：US07999454B2
公开(公告)日：2011-08-16
申请号：US12191478
申请日：2008-08-14
CPC分类号： H01L27/3248 , H01L27/322 , H01L27/3255 , H01L27/3276 , H01L2227/323
摘要： An electroluminescent device having a plurality of current driven pixels arranged in rows and columns, such that when current is provided to a pixel it produces light, including each pixel having first and second electrodes and current responsive electroluminescent media disposed between the first and second electrodes; at least one chiplet having a thickness less than 20 micrometers; including transistor drive circuitry for controlling the operation of at least four pixels, the chiplet being mounted on a substrate and having connection pads; a planarization layer disposed over at least a portion of the chiplet; a first conductive layer over the planarization layer and connected to at least one of the connection pads; and a structure for providing electrical signals through the first conductive layer and at least one of the connection pads of the chiplet so that the transistor drive circuitry of the chiplet controls current to the four pixels.
摘要翻译： 一种具有排列成行和列的多个电流驱动像素的电致发光器件，使得当电流被提供给像素时，其产生光，包括具有第一和第二电极的每个像素以及设置在第一和第二电极之间的电流响应电致发光介质; 至少一个具有小于20微米厚度的小穗; 包括用于控制至少四个像素的操作的晶体管驱动电路，所述小芯片安装在衬底上并具有连接焊盘; 布置在所述小芯片的至少一部分上的平坦化层; 平坦化层上的第一导电层，并连接到至少一个连接焊盘; 以及用于通过第一导电层和小芯片的至少一个连接焊盘提供电信号的结构，使得小芯片的晶体管驱动电路控制电流到四个像素。
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公开(公告)号：US20100039030A1
公开(公告)日：2010-02-18
申请号：US12191478
申请日：2008-08-14
IPC分类号： H01J1/62
CPC分类号： H01L27/3248 , H01L27/322 , H01L27/3255 , H01L27/3276 , H01L2227/323
摘要： An electroluminescent device having a plurality of current driven pixels arranged in rows and columns, such that when current is provided to a pixel it produces light, including each pixel having first and second electrodes and current responsive electroluminescent media disposed between the first and second electrodes; at least one chiplet having a thickness less than 20 micrometers; including transistor drive circuitry for controlling the operation of at least four pixels, the chiplet being mounted on a substrate and having connection pads; a planarization layer disposed over at least a portion of the chiplet; a first conductive layer over the planarization layer and connected to at least one of the connection pads; and a structure for providing electrical signals through the first conductive layer and at least one of the connection pads of the chiplet so that the transistor drive circuitry of the chiplet controls current to the four pixels.
摘要翻译： 一种具有排列成行和列的多个电流驱动像素的电致发光器件，使得当电流被提供给像素时，其产生光，包括具有第一和第二电极的每个像素以及设置在第一和第二电极之间的电流响应电致发光介质; 至少一个具有小于20微米厚度的小穗; 包括用于控制至少四个像素的操作的晶体管驱动电路，所述小芯片安装在衬底上并具有连接焊盘; 布置在所述小芯片的至少一部分上的平坦化层; 平坦化层上的第一导电层，并连接到至少一个连接焊盘; 以及用于通过第一导电层和小芯片的至少一个连接焊盘提供电信号的结构，使得小芯片的晶体管驱动电路控制电流到四个像素。
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公开(公告)号：US07642997B2
公开(公告)日：2010-01-05
申请号：US11427139
申请日：2006-06-28
申请人： John W. Hamer , Gary Parrett
发明人： John W. Hamer , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0847 , G09G2320/0233 , G09G2320/0295 , G09G2320/043
摘要： An apparatus for selecting a stressing voltage for compensating for changes in the threshold voltages (Vth) for drive transistors in pixel drive circuits in an active matrix OLED display having a plurality of OLED light-emitting pixels arranged in an array is disclosed.
摘要翻译： 公开了一种用于选择用于补偿具有排列成阵列的多个OLED发光像素的有源矩阵OLED显示器中的像素驱动电路中的驱动晶体管的阈值电压（Vth）的变化的应力电压的装置。
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公开(公告)号：US20080001854A1
公开(公告)日：2008-01-03
申请号：US11427104
申请日：2006-06-28
申请人： John W. Hamer , Gary Parrett
发明人： John W. Hamer , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0842 , G09G2300/0866 , G09G2310/0254 , G09G2310/0256 , G09G2320/0295 , G09G2320/043
摘要： An apparatus for determining an adjustment to a signal voltage for compensating for changes in the threshold voltage (Vth) for a drive transistor in a pixel drive circuit in an active matrix OLED display having at least one OLED light-emitting pixel, comprising: the pixel drive circuit having a data line, a power supply line, a drive transistor; the drive transistor being electrically connected to the power supply line and to the OLED light-emitting pixel; the switch transistor being electrically connected to the gate electrode of the drive transistor and to the data line; first means for applying a first voltage to the power supply line; second means for applying a second voltage to the power supply line opposite in polarity to the first voltage; third means for producing a threshold-voltage-related signal on the data line; and fourth means responsive to the threshold-voltage-related signal for calculating the adjustment to the signal voltage.
摘要翻译： 一种用于确定用于补偿具有至少一个OLED发光像素的有源矩阵OLED显示器中的像素驱动电路中的驱动晶体管的阈值电压（Vth）的变化的用于补偿信号电压的调整的装置，包括：所述像素 具有数据线的驱动电路，电源线，驱动晶体管; 驱动晶体管电连接到电源线和OLED发光像素; 开关晶体管电连接到驱动晶体管的栅电极和数据线; 用于向所述电源线施加第一电压的第一装置; 将第二电压施加到与第一电压极性相反的电源线的第二装置; 用于在数据线上产生阈值电压相关信号的第三装置; 以及响应阈值电压相关信号的第四装置，用于计算对信号电压的调整。
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