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1. 发明申请

US20130099692A1 SYSTEM AND METHOD FOR FAST COMPENSATION PROGRAMMING OF PIXELS IN A DISPLAY 有权
标题翻译：用于显示器中像素快速补偿编程的系统和方法
公开(公告)号：US20130099692A1
公开(公告)日：2013-04-25
申请号：US13481789
申请日：2012-05-26
申请人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma , Arokia Nathan
发明人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma , Arokia Nathan
IPC分类号： H05B37/02
CPC分类号： G09G3/3233 , G09G3/3283 , G09G3/3291 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2310/0259 , G09G2310/0262 , G09G2310/027 , G09G2310/066 , G09G2320/0233 , G09G2320/043 , G09G2330/021 , G09G2330/023 , H05B37/02
摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. To increase programming time, the pixel circuits may be pre-charged or a biasing current may be applied to charge and/or discharge a data line and/or the driving device. Aspects of the present disclosure allow for the biasing current to drain partially through the storage device to allow the portion of the biasing current applied to the driving device to remain small while the data line discharges. Furthermore, the present disclosure provides display architectures and operation schemes for display arranged in segments each including a plurality of pixel circuits.0
摘要翻译：提供了用于编程具有减少的编程时间的电路的电路。这种电路包括诸如用于存储显示信息的电容器的存储装置，并且用于确保诸如驱动晶体管的驱动装置根据显示信息驱动发光装置。为了增加编程时间，可以对像素电路进行预充电，或者可以施加偏置电流来对数据线和/或驱动装置进行充电和/或放电。本公开的方面允许偏置电流部分地通过存储装置排出，以允许施加到驱动装置的偏置电流的一部分在数据线放电时保持较小。此外，本公开提供了显示器的显示架构和操作方案，其布置成包括多个像素电路的段。 0

2. 发明授权

US09370075B2 System and method for fast compensation programming of pixels in a display 有权
标题翻译：用于显示器中像素的快速补偿编程的系统和方法
公开(公告)号：US09370075B2
公开(公告)日：2016-06-14
申请号：US13481789
申请日：2012-05-26
申请人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma , Arokia Nathan
发明人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma , Arokia Nathan
IPC分类号： H05B37/02 , G09G3/32
CPC分类号： G09G3/3233 , G09G3/3283 , G09G3/3291 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2310/0259 , G09G2310/0262 , G09G2310/027 , G09G2310/066 , G09G2320/0233 , G09G2320/043 , G09G2330/021 , G09G2330/023 , H05B37/02
摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. To increase programming time, the pixel circuits may be pre-charged or a biasing current may be applied to charge and/or discharge a data line and/or the driving device. Aspects of the present disclosure allow for the biasing current to drain partially through the storage device to allow the portion of the biasing current applied to the driving device to remain small while the data line discharges. Furthermore, the present disclosure provides display architectures and operation schemes for display arranged in segments each including a plurality of pixel circuits.
摘要翻译：提供了用于编程具有减少的编程时间的电路的电路。这种电路包括诸如用于存储显示信息的电容器的存储装置，并且用于确保诸如驱动晶体管的驱动装置根据显示信息驱动发光装置。为了增加编程时间，可以对像素电路进行预充电，或者可以施加偏置电流来对数据线和/或驱动装置进行充电和/或放电。本公开的方面允许偏置电流部分地通过存储装置排出，以允许施加到驱动装置的偏置电流的一部分在数据线放电时保持较小。此外，本公开提供了显示器的显示架构和操作方案，其布置成包括多个像素电路的段。

3. 发明申请

US20130100173A1 SYSTEMS AND METHODS FOR OPERATING PIXELS IN A DISPLAY TO MITIGATE IMAGE FLICKER 有权
标题翻译：用于在显示器中操作像素以减轻图像抖动的系统和方法
公开(公告)号：US20130100173A1
公开(公告)日：2013-04-25
申请号：US13481788
申请日：2012-05-26
申请人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma
发明人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma
IPC分类号： G09G5/10
CPC分类号： G09G5/10 , G09G3/3275 , G09G2300/0861 , G09G2310/0224 , G09G2310/0251 , G09G2320/029 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.
摘要翻译：提供了用于编程具有减少的编程时间的电路的电路。这种电路包括诸如用于存储显示信息的电容器的存储装置，并且用于确保诸如驱动晶体管的驱动装置根据显示信息驱动发光装置。本公开提供了用于在通过在发射阶段之间引入空闲相位来显示视频内容以减少闪烁感知的驱动方案，以增加显示器的有效刷新率。还公开了驱动方案，用于通过确保在利用通过复用器连接到多个数据线的驱动器的显示阵列中刷新编程信息来减少串扰的影响。

4. 发明授权

US09881587B2 Systems and methods for operating pixels in a display to mitigate image flicker 有权
公开(公告)号：US09881587B2
公开(公告)日：2018-01-30
申请号：US13481788
申请日：2012-05-26
申请人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma
发明人： Gholamreza Chaji , Jackson Chi Sun Lai , Yaser Azizi , Maran Ran Ma
IPC分类号： G09G3/32 , G09G5/10 , G09G3/3275
CPC分类号： G09G5/10 , G09G3/3275 , G09G2300/0861 , G09G2310/0224 , G09G2310/0251 , G09G2320/029 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer.

5. 发明授权

US08283967B2 Stable current source for system integration to display substrate 有权
标题翻译：稳定的电流源用于系统集成显示衬底
公开(公告)号：US08283967B2
公开(公告)日：2012-10-09
申请号：US12944488
申请日：2010-11-11
申请人： Gholamreza Chaji , Jackson Chi Sun Lai
发明人： Gholamreza Chaji , Jackson Chi Sun Lai
IPC分类号： H03K17/16
CPC分类号： G09G5/18 , G09G3/3225 , G09G3/3283 , G09G3/3291 , G09G2300/0465 , G09G2300/0814 , G09G2300/0819 , G09G2300/0852 , G09G2310/0218 , G09G2310/0262 , G09G2320/0233 , G09G2320/0693
摘要： A technique to implement a stable and high impedance current sink or source onto a display substrate using a single device. The high output current source or sink circuit includes an input that receives a fixed reference current and provides the reference current to a node in the current source or sink circuit during a calibration operation of the current source or sink circuit. The circuit further includes a first transistor and a second transistor series-connected to the node such that the reference current adjusts the voltage at the node to allow the reference current to pass through the series-connected transistors during the calibration operation. The circuit includes one or more storage devices connected to the node, and an output transistor connected to the node to source or sink an output current from current stored in the one or more storage devices to a drive an active matrix display with a bias current corresponding to the output current.
摘要翻译：使用单个器件在显示器基板上实现稳定且高阻抗的电流吸收器或源的技术。高输出电流源或宿电路包括接收固定参考电流并在当前源或宿电路的校准操作期间将参考电流提供给电流源或宿电路中的节点的输入。电路还包括串联连接到节点的第一晶体管和第二晶体管，使得参考电流调节节点处的电压，以允许参考电流在校准操作期间通过串联连接的晶体管。该电路包括连接到该节点的一个或多个存储装置，以及连接到该节点的输出晶体管，以将输出电流从存储在一个或多个存储装置中的电流输出或吸收到具有对应于偏置电流的有源矩阵显示器的驱动器到输出电流。

6. 发明申请

US20110109350A1 Stable Current Source for System Integration to Display Substrate 有权
标题翻译：用于系统集成到显示基板的稳定电流源
公开(公告)号：US20110109350A1
公开(公告)日：2011-05-12
申请号：US12944488
申请日：2010-11-11
申请人： Gholamreza Chaji , Jackson Chi Sun Lai
发明人： Gholamreza Chaji , Jackson Chi Sun Lai
IPC分类号： H03K3/00
CPC分类号： G09G5/18 , G09G3/3225 , G09G3/3283 , G09G3/3291 , G09G2300/0465 , G09G2300/0814 , G09G2300/0819 , G09G2300/0852 , G09G2310/0218 , G09G2310/0262 , G09G2320/0233 , G09G2320/0693
摘要： A technique to implement a stable and high impedance current sink or source onto a display substrate using a single device. The high output current source or sink circuit includes an input that receives a fixed reference current and provides the reference current to a node in the current source or sink circuit during a calibration operation of the current source or sink circuit. The circuit further includes a first transistor and a second transistor series-connected to the node such that the reference current adjusts the voltage at the node to allow the reference current to pass through the series-connected transistors during the calibration operation. The circuit includes one or more storage devices connected to the node, and an output transistor connected to the node to source or sink an output current from current stored in the one or more storage devices to a drive an active matrix display with a bias current corresponding to the output current.
摘要翻译：使用单个器件在显示器基板上实现稳定且高阻抗的电流吸收器或源的技术。高输出电流源或宿电路包括接收固定参考电流并在当前源或宿电路的校准操作期间将参考电流提供给电流源或宿电路中的节点的输入。电路还包括串联连接到节点的第一晶体管和第二晶体管，使得参考电流调节节点处的电压，以允许参考电流在校准操作期间通过串联连接的晶体管。电路包括连接到节点的一个或多个存储装置和连接到节点的输出晶体管，以将来自存储在一个或多个存储装置中的电流的输出电流源流或吸收到具有对应于偏置电流的有源矩阵显示器的驱动器到输出电流。

7. 发明授权

US08914246B2 System and methods for aging compensation in AMOLED displays 有权
标题翻译： AMOLED显示屏老化补偿系统和方法
公开(公告)号：US08914246B2
公开(公告)日：2014-12-16
申请号：US12956842
申请日：2010-11-30
申请人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
发明人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
IPC分类号： G01R31/00 , G09G3/32 , G09G3/00
CPC分类号： G09G3/006 , G01R31/44 , G09G3/3233 , G09G3/3283 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors.
摘要翻译：公开了提供用于显示装置的老化补偿的基线测量的方法和系统。示例性显示系统具有多个有源像素和参考像素。公共输入信号被提供给参考像素和多个有源像素。测量参考像素的输出并将其与有源像素的输出进行比较，以确定老化效应。还可以使用第二可变参考电流和正在测试的设备的输出（诸如像素之一）将显示系统应用于当前比较器的第一已知参考电流。调整可变参考电流，直到第二个电流和被测器件的输出等于第一个电流。在显示系统操作期间，被测器件的结果电流存储在查询表中，用于老化测量的基线。也可以通过确定诸如OLED和驱动晶体管等像素部件中的短路的异常来测试显示系统来确定生产缺陷。

8. 发明申请

US20120293478A1 SYSTEM AND METHODS FOR EXTRACTION OF THRESHOLD AND MOBILITY PARAMETERS IN AMOLED DISPLAYS 有权
公开(公告)号：US20120293478A1
公开(公告)日：2012-11-22
申请号：US13112468
申请日：2011-05-20
申请人： Gholamreza Chaji , Yaser Azizi
发明人： Gholamreza Chaji , Yaser Azizi
IPC分类号： G09G5/00 , G09G3/30
CPC分类号： G09G3/006 , G01R19/0092 , G09G3/3233 , G09G3/3258 , G09G3/3266 , G09G3/3291 , G09G2300/043 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0866 , G09G2310/0251 , G09G2310/0291 , G09G2310/08 , G09G2320/0233 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2330/028 , H03F3/2171
摘要： Disclosed is a system and method to improve the extraction of transistor and OLED parameters in an AMOLED display for compensation of programming voltages to improve image quality. A pixel circuit includes an organic light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input to provide the programming signal, and a storage device to store the programming signal. A charge-pump amplifier has a current input and a voltage output. The charge-pump amplifier includes an operational amplifier in negative feedback configuration. The feedback is provided by a capacitor connected between the output and the inverting input of the operational amplifier. A common-mode voltage source drives the non-inverting input of the operational amplifier. An electronic switch is coupled across the capacitor to reset the capacitor. A switch module including the input is coupled to the output of the pixel circuit and an output is coupled to the input of the charge-pump amplifier. The switch module includes a set of electronic switches that may be controlled by external control signals to steer current in and out of the pixel circuit and provide a discharge path between the pixel circuit and the charge-pump amplifier and isolating the charge-pump amplifier from the pixel circuit. A controller is coupled to the pixel circuit, charge-pump amplifier and the switch module. The controller controls input signals to the pixel circuit, charge-pump amplifier and switch module in a predetermined sequence to produce an output voltage value which is a function of a parameter of the pixel circuit. The sequence includes providing a program voltage to the programming input to either pre-charge an internal capacitance of the pixel circuit to a charge level and transfer the charge to the charge-pump amplifier via the switch module to generate the output voltage value or provide a current from the pixel circuit to the charge-pump amplifier via the switch module to produce the output voltage value by integration over a certain period of time.

9. 发明授权

US08576217B2 System and methods for extraction of threshold and mobility parameters in AMOLED displays 有权
标题翻译： AMOLED显示屏中提取阈值和移动性参数的系统和方法
公开(公告)号：US08576217B2
公开(公告)日：2013-11-05
申请号：US13112468
申请日：2011-05-20
申请人： Gholamreza Chaji , Yaser Azizi
发明人： Gholamreza Chaji , Yaser Azizi
IPC分类号： G06F3/038 , G09G5/00
CPC分类号： G09G3/006 , G01R19/0092 , G09G3/3233 , G09G3/3258 , G09G3/3266 , G09G3/3291 , G09G2300/043 , G09G2300/0465 , G09G2300/0819 , G09G2300/0842 , G09G2300/0866 , G09G2310/0251 , G09G2310/0291 , G09G2310/08 , G09G2320/0233 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2330/028 , H03F3/2171
摘要： Disclosed is a system and method to improve the extraction of transistor and OLED parameters in an AMOLED display for compensation of programming voltages to improve image quality. A pixel circuit includes an organic light emitting device, a drive device to provide a programmable drive current to the light emitting device, a programming input to provide the programming signal, and a storage device to store the programming signal. A charge-pump amplifier has a current input and a voltage output. The charge-pump amplifier includes an operational amplifier in negative feedback configuration. The feedback is provided by a capacitor connected between the output and the inverting input of the operational amplifier. A common-mode voltage source drives the non-inverting input of the operational amplifier. An electronic switch is coupled across the capacitor to reset the capacitor.
摘要翻译：公开了一种改进AMOLED显示器中晶体管和OLED参数提取的系统和方法，用于补偿编程电压以提高图像质量。像素电路包括有机发光器件，向发光器件提供可编程驱动电流的驱动器件，用于提供编程信号的编程输入端以及用于存储编程信号的存储器件。电荷泵放大器具有电流输入和电压输出。电荷泵放大器包括负反馈配置的运算放大器。反馈由连接在运算放大器的输出和反相输入端之间的电容器提供。共模电压源驱动运算放大器的非反相输入。电子开关耦合在电容器两端以复位电容器。

10. 发明申请

US20110130981A1 SYSTEM AND METHODS FOR AGING COMPENSATION IN AMOLED DISPLAYS 有权
标题翻译：用于在AMOLED显示器中老化补偿的系统和方法
公开(公告)号：US20110130981A1
公开(公告)日：2011-06-02
申请号：US12956842
申请日：2010-11-30
申请人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
发明人： Gholamreza Chaji , Joseph Marcel Dionne , Yaser Azizi , Javid Jaffari , Abbas Hormati , Tong Liu , Stefan Alexander
IPC分类号： G06F19/00 , G09G5/10 , G01R31/28
CPC分类号： G09G3/006 , G01R31/44 , G09G3/3233 , G09G3/3283 , G09G2300/0842 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045
摘要： Methods and systems to provide baseline measurements for aging compensation for a display device are disclosed. An example display system has a plurality of active pixels and a reference pixel. Common input signals are provided to the reference pixel and the plurality of active pixels. The outputs of the reference pixel is measured and compared to the output of the active pixels to determine aging effects. The display system may also be tested applying a first known reference current to a current comparator with a second variable reference current and the output of a device under test such as one of the pixels. The variable reference current is adjusted until the second current and the output of the device under test is equivalent of the first current. The resulting current of the device under test is stored in a look up table for a baseline for aging measurements during the display system operation. The display system may also be tested to determine production flaws by determining anomalies such as short circuits in pixel components such as OLEDs and drive transistors.
摘要翻译：公开了提供用于显示装置的老化补偿的基线测量的方法和系统。示例性显示系统具有多个有源像素和参考像素。公共输入信号被提供给参考像素和多个有源像素。测量参考像素的输出并将其与有源像素的输出进行比较，以确定老化效应。还可以使用第二可变参考电流和正在测试的设备的输出（诸如像素之一）将显示系统应用于当前比较器的第一已知参考电流。调整可变参考电流，直到第二个电流和被测器件的输出等于第一个电流。在显示系统操作期间，被测器件的结果电流存储在查询表中，用于老化测量的基线。也可以通过确定诸如OLED和驱动晶体管等像素部件中的短路的异常来测试显示系统来确定生产缺陷。

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