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1. 发明授权

US07636074B2 Active matrix display compensating apparatus 有权
标题翻译：有源矩阵显示补偿装置
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。

2. 发明申请

US20090160740A1 ELECTROLUMINESCENT DISPLAY COMPENSATED ANALOG TRANSISTOR DRIVE SIGNAL 有权
标题翻译：电致发光显示补偿模拟晶体管驱动信号
公开(公告)号：US20090160740A1
公开(公告)日：2009-06-25
申请号：US11962182
申请日：2007-12-21
申请人： Felipe A. Leon , Christopher J. White , Gary Parrett , Bruno Primerano
发明人： Felipe A. Leon , Christopher J. White , Gary Parrett , Bruno Primerano
IPC分类号： G09G3/30
CPC分类号： G09G3/3291 , G09G3/3233 , G09G2300/0417 , G09G2320/029 , G09G2320/043 , G09G2320/045
摘要： Apparatus for providing an analog drive transistor control signal to the gate electrode of a drive transistor in a drive circuit that applies current to an EL device, the drive circuit including a first supply electrode of the drive transistor and the EL device connected to a second supply electrode of the drive transistor, comprising a measuring circuit for measuring the current passing through the supply electrodes at different times to provide an aging signal representing variations in the characteristics of the drive transistor and EL device caused by operation of the drive transistor and EL device over time; a compensator for changing a linear code value in response to the aging signal to compensate for the variations in the characteristics of the drive transistor and EL device; and a linear source driver for producing the analog drive transistor control signal in response to the changed linear code value.
摘要翻译：一种用于向施加电流至EL器件的驱动电路中的驱动晶体管的栅电极提供模拟驱动晶体管控制信号的装置，所述驱动电路包括驱动晶体管的第一电源电极和连接到第二电源的EL器件驱动晶体管的电极，包括用于测量在不同时间通过供电电极的电流的测量电路，以提供表示由驱动晶体管和EL器件的操作引起的驱动晶体管和EL器件的特性变化的老化信号时间; 补偿器，用于响应于老化信号改变线性代码值，以补偿驱动晶体管和EL器件的特性的变化; 以及用于响应于改变的线性代码值产生模拟驱动晶体管控制信号的线性源极驱动器。

3. 发明授权

US07355574B1 OLED display with aging and efficiency compensation 有权
标题翻译： OLED显示屏具有老化和效率补偿
公开(公告)号：US07355574B1
公开(公告)日：2008-04-08
申请号：US11626563
申请日：2007-01-24
申请人： Felipe A. Leon , Gary Parrett , Christopher J. White
发明人： Felipe A. Leon , Gary Parrett , Christopher J. White
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。

4. 发明授权

US08299983B2 Electroluminescent display with initial nonuniformity compensation 有权
标题翻译：具有初始不均匀性补偿的电致发光显示
公开(公告)号：US08299983B2
公开(公告)日：2012-10-30
申请号：US12258388
申请日：2008-10-25
申请人： Charles I. Levey , Gary Parrett
发明人： Charles I. Levey , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： A method of compensating for differences in characteristics of a plurality of electroluminescent (EL) subpixels having readout transistors, includes providing a first voltage source connected through a first switch to each subpixel's drive transistor and a second voltage source connected through a second switch to each subpixel's EL emitter; providing a current source connected through a third switch, and a current sink connected through a fourth switch, to the readout transistor; providing a test voltage to a subpixel; closing only the first and fourth switches and measuring the readout transistor voltage to provide a first signal representative of characteristics of the drive transistor; closing only the second and third switches and measuring the voltage to provide a second signal representative of characteristics of the EL emitter; repeating for each subpixel; and using the first and second signals for each subpixel to compensate for differences in characteristics of the EL subpixels.
摘要翻译：一种补偿具有读出晶体管的多个电致发光（EL）子像素的特性差异的方法，包括：通过第一开关连接到每个子像素的驱动晶体管的第一电压源和通过第二开关连接到每个子像素的第二电压源 EL发射器提供通过第三开关连接的电流源和通过第四开关连接的电流源到读出晶体管; 向子像素提供测试电压; 仅关闭第一和第四开关并测量读出晶体管电压以提供表示驱动晶体管特性的第一信号; 仅关闭第二和第三开关并测量电压以提供代表EL发射器特性的第二信号; 每个子像素重复; 并且为每个子像素使用第一和第二信号来补偿EL子像素的特性差异。

5. 发明申请

US20100123649A1 COMPENSATED DRIVE SIGNAL FOR ELECTROLUMINESCENT DISPLAY 有权
标题翻译：用于电致发光显示器的补偿驱动信号
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。

6. 发明申请

US20100103082A1 ELECTROLUMINESCENT DISPLAY WITH INITIAL NONUNIFORMITY COMPENSATION 有权
标题翻译：具有初始非均匀性补偿的电致发光显示器
公开(公告)号：US20100103082A1
公开(公告)日：2010-04-29
申请号：US12258388
申请日：2008-10-25
申请人： Charles I. Levey , Gary Parrett
发明人： Charles I. Levey , Gary Parrett
IPC分类号： G09G3/30
CPC分类号： G09G3/3233 , G09G2300/0819 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： A method of compensating for differences in characteristics of a plurality of electroluminescent (EL) subpixels having readout transistors, includes providing a first voltage source connected through a first switch to each subpixel's drive transistor and a second voltage source connected through a second switch to each subpixel's EL emitter; providing a current source connected through a third switch, and a current sink connected through a fourth switch, to the readout transistor; providing a test voltage to a subpixel; closing only the first and fourth switches and measuring the readout transistor voltage to provide a first signal representative of characteristics of the drive transistor; closing only the second and third switches and measuring the voltage to provide a second signal representative of characteristics of the EL emitter; repeating for each subpixel; and using the first and second signals for each subpixel to compensate for differences in characteristics of the EL subpixels.
摘要翻译：一种补偿具有读出晶体管的多个电致发光（EL）子像素的特性差异的方法，包括：通过第一开关连接到每个子像素的驱动晶体管的第一电压源和通过第二开关连接到每个子像素的第二电压源 EL发射器提供通过第三开关连接的电流源和通过第四开关连接的电流源到读出晶体管; 向子像素提供测试电压; 仅关闭第一和第四开关并测量读出晶体管电压以提供表示驱动晶体管特性的第一信号; 仅关闭第二和第三开关并测量电压以提供代表EL发射器特性的第二信号; 每个子像素重复; 并且为每个子像素使用第一和第二信号来补偿EL子像素的特性差异。

7. 发明申请

US20080001855A1 ACTIVE MATRIX DISPLAY COMPENSATION 有权
标题翻译：主动矩阵显示补偿
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。

8. 发明申请

US20110279014A1 OLED DEVICE WITH EMBEDDED CHIP DRIVING 审中-公开
标题翻译：具有嵌入式芯片驱动的OLED设备
公开(公告)号：US20110279014A1
公开(公告)日：2011-11-17
申请号：US13191975
申请日：2011-07-27
申请人： Dustin L. Winters , John W. Hamer , Gary Parrett , Christopher Bower , Etienne Menard
发明人： Dustin L. Winters , John W. Hamer , Gary Parrett , Christopher Bower , Etienne Menard
IPC分类号： H01J1/62 , H01J9/00
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。

9. 发明授权

US07859501B2 OLED display with aging and efficiency compensation 有权
标题翻译： OLED显示屏具有老化和效率补偿
公开(公告)号：US07859501B2
公开(公告)日：2010-12-28
申请号：US11766823
申请日：2007-06-22
申请人： Charles I. Levey , Gary Parrett
发明人： Charles I. Levey , Gary Parrett
IPC分类号： G09G3/36
CPC分类号： G09G3/3233 , G09G2300/0417 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： A method of compensating for changes in an OLED drive circuit, includes: providing a drive transistor; providing a first voltage source and a first switch; providing an OLED device connected to the drive transistor. Voltages are measured and used to compensate for changes in the OLED drive transistor.
摘要翻译：补偿OLED驱动电路的变化的方法包括：提供驱动晶体管; 提供第一电压源和第一开关; 提供连接到驱动晶体管的OLED器件。电压被测量并用于补偿OLED驱动晶体管的变化。

10. 发明申请

US20100123699A1 ELECTROLUMINESCENT DISPLAY INITIAL-NONUNIFORMITY-COMPENSATED DRIVE SIGNAL 有权
标题翻译：电致发光显示器初始非均匀性补偿驱动信号
公开(公告)号：US20100123699A1
公开(公告)日：2010-05-20
申请号：US12274559
申请日：2008-11-20
申请人： Felipe A. Leon , Christopher J. White , Gary Parrett , Bruno Primerano
发明人： Felipe A. Leon , Christopher J. White , Gary Parrett , Bruno Primerano
IPC分类号： G06F3/038
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。

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