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31. 发明申请

US20060176250A1 Method and system for programming and driving active matrix light emitting devcie pixel 有权
标题翻译：用于编程和驱动有源矩阵发光器件的方法和系统
公开(公告)号：US20060176250A1
公开(公告)日：2006-08-10
申请号：US11298240
申请日：2005-12-07
申请人： Arokia Nathan , Gholamreza Chaji , Peyman Servati
发明人： Arokia Nathan , Gholamreza Chaji , Peyman Servati
IPC分类号： G09G3/30
CPC分类号： G09G3/3258 , G09G3/3233 , G09G3/3696 , G09G2300/0465 , G09G2300/0842 , G09G2300/0852 , G09G2310/0262 , G09G2310/06 , G09G2310/061 , G09G2320/043
摘要： Method and system for programming and driving active matrix light emitting device pixel is provided. The pixel is a voltage programmed pixel circuit, and has a light emitting device, a driving transistor and a storage capacitor. The pixel has a programming cycle having a plurality of operating cycles, and a driving cycle. During the programming cycle, the voltage of the connection between the OLED and the driving transistor is controlled so that the desired gate-source voltage of a driving transistor is stored in a storage capacitor.
摘要翻译：提供了编程和驱动有源矩阵发光器件像素的方法和系统。像素是电压编程像素电路，并且具有发光器件，驱动晶体管和存储电容器。像素具有具有多个操作周期的编程周期和驱动周期。在编程周期期间，控制OLED和驱动晶体管之间的连接电压，使得驱动晶体管的期望的栅极 - 源极电压被存储在存储电容器中。

32. 发明申请

US20060158402A1 Method and system for programming, calibrating and driving a light emitting device display 有权
公开(公告)号：US20060158402A1
公开(公告)日：2006-07-20
申请号：US11304162
申请日：2005-12-15
申请人： Arokia Nathan , Gholamreza Chaji , Peyman Servati
发明人： Arokia Nathan , Gholamreza Chaji , Peyman Servati
IPC分类号： G09G3/32
CPC分类号： G01R19/0092 , G09G3/006 , G09G3/3208 , G09G3/3233 , G09G3/3241 , G09G3/3258 , G09G3/3283 , G09G3/3291 , G09G2300/0819 , G09G2300/0842 , G09G2310/0262 , G09G2310/027 , G09G2320/0285 , G09G2320/029 , G09G2320/0295 , G09G2320/043 , G09G2320/045 , G09G2320/0693
摘要： A method and system for programming, calibrating and driving a light emitting device display is provided. The system may include extracting a time dependent parameter of a pixel for calibration.

33. 发明申请

US20060149493A1 Method and system for calibrating a light emitting device display 有权
标题翻译：用于校准发光器件显示器的方法和系统
公开(公告)号：US20060149493A1
公开(公告)日：2006-07-06
申请号：US11291301
申请日：2005-12-01
申请人： Sanjiv Sambandan , Peyman Servati , Arokia Nathan
发明人： Sanjiv Sambandan , Peyman Servati , Arokia Nathan
IPC分类号： G06F19/00
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0417 , G09G2300/0842 , G09G2320/0233 , G09G2320/029 , G09G2320/0693
摘要： A method and system for calibrating a light emitting device display is provided. The display includes a plurality of pixel circuits, each having a light emitting device. The system for the calibration monitors current drawn from a row of the display array, and generates a correction parameter to correct brightness level of the light emitting device.
摘要翻译：提供了用于校准发光器件显示器的方法和系统。显示器包括多个像素电路，每个具有发光器件。用于校准的系统监视从显示阵列的行绘制的电流，并且产生校正参数以校正发光器件的亮度水平。

34. 发明申请

US20060027807A1 Pixel current driver for organic light emitting diode displays 有权
标题翻译：有机发光二极管显示器的像素电流驱动器
公开(公告)号：US20060027807A1
公开(公告)日：2006-02-09
申请号：US11247455
申请日：2005-10-11
申请人： Arokia Nathan , Peyman Servati , Kapil Sakariya
发明人： Arokia Nathan , Peyman Servati , Kapil Sakariya
IPC分类号： H01L29/04
CPC分类号： G09G3/3233 , G09G3/3241 , G09G2300/0804 , G09G2320/0223 , H01L27/12 , H01L27/283 , H01L27/3276
摘要： A pixel current driver comprises a plurality of thin film transistors (TFTs) each having dual gates and for driving OLED layers. A top gate of the dual gates is formed between a source and a drain of each of the thin film transistors, to thereby minimize parasitic capacitance. The top gate is grounded or electrically tied to a bottom gate. The plurality of thin film transistors may be two thin film transistors formed in voltage-programmed manner or five thin film transistors formed in a current-programmed ΔVT-compensated manner. Other versions of the current-programmed circuit with different numbers of thin film transistors are also presented that compensate for δVT. The OLED layer are continuous and vertically stacked on the plurality of thin film transistors to provide an aperture ratio close to 100%.
摘要翻译：像素电流驱动器包括多个薄膜晶体管（TFT），每个薄膜晶体管具有双栅极和用于驱动OLED层。在每个薄膜晶体管的源极和漏极之间形成双栅极的顶栅，从而使寄生电容最小化。顶门接地或电连接到底栅。多个薄膜晶体管可以是以电压编程方式形成的两个薄膜晶体管或以电流编程的DeltaV补偿方式形成的五个薄膜晶体管。还提供了具有不同数量的薄膜晶体管的电流编程电路的其他版本，其补偿deltaV 。 OLED层在多个薄膜晶体管上连续且垂直地堆叠，以提供接近100％的孔径比。

35. 发明授权

US06405143B1 Method and system for determining potential fields 失效
标题翻译：确定潜在领域的方法和系统
公开(公告)号：US06405143B1
公开(公告)日：2002-06-11
申请号：US09373574
申请日：1999-08-13
申请人： Hoan Huu Pham , Arokia Nathan
发明人： Hoan Huu Pham , Arokia Nathan
IPC分类号： G01R1500
CPC分类号： G06F17/5018
摘要： A method for determing the potential in a three-dimensional domain containing a source domain of source particles and a target domain of target particles involves assigning the source particles into source particle clusters and the target particles into target particle clusters, assigning a collection point to each of the clusters, and determing the inverse distance from each particle to the collection point of its respective cluster. A pseudo-particle representative of each particle within the cluster is defined at the collection point of each cluster in accordance with the determined inverse distances and the charge-like measure of each of the particles. The potential, and/or its gradient, at any of the target particles is then determined from the position and the charge-like measure of the associated pseudo-particle.
摘要翻译：用于确定含有源粒子的源区域和靶粒子的靶区域的三维域中的势的方法包括将源粒子分配到源粒子簇中，将目标粒子分配到目标粒子簇中，将收集点分配给每个并且确定从每个粒子到其相应簇的收集点的反向距离。根据确定的每个颗粒的反向距离和电荷样测量，在每个簇的收集点处定义代表簇内每个颗粒的伪粒子。然后，从相关联的伪粒子的位置和电荷样测量中确定任何靶粒子的电势和/或其梯度。

36. 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。

37. 发明申请

US20150234446A1 DYNAMIC SWITCHING OF POWER MODES FOR TOUCH SCREENS USING FORCE TOUCH 审中-公开
标题翻译：用力触摸触摸屏功率模式的动态切换
公开(公告)号：US20150234446A1
公开(公告)日：2015-08-20
申请号：US14624281
申请日：2015-02-17
申请人： Arokia Nathan , Jackson Chi-Sun Lai , Suk-Bae Cha , Corbin Church
发明人： Arokia Nathan , Jackson Chi-Sun Lai , Suk-Bae Cha , Corbin Church
IPC分类号： G06F1/32 , G06F3/044 , G06F3/041
CPC分类号： G06F1/3262 , G06F3/0414 , G06F3/0416 , G06F3/044 , G06F2203/04105
摘要： Switching of power modes for touch screens is disclosed. In example embodiments a touch detect mode may be activated for touchscreen operation. The touchscreen may be a projected capacitance screen that includes force sensing based on piezo electric sensors. The touch detect mode may be a low power mode in which at least one channel, but fewer than all channels of the touch screen are monitored. When is determined that a touch event has occurred a switch to a scan mode for touchscreen operation may be performed. Scan mode may be a higher power mode in which all channels of the touch screen are scanned at least for position sensing. The touch detect mode monitoring may be implemented by monitoring the total charge on the at least one channel and providing a voltage signal. When the voltage signal meets predetermined criteria an indication of a touch event may be generated.
摘要翻译：公开了触摸屏功率模式的切换。在示例实施例中，可以激活触摸检测模式用于触摸屏操作。触摸屏可以是投影电容屏幕，其包括基于压电传感器的力感测。触摸检测模式可以是低功率模式，其中监视至少一个通道，但是少于触摸屏的所有通道。当确定触摸事件已经发生时，可以执行切换到用于触摸屏操作的扫描模式。扫描模式可以是更高的功率模式，其中至少扫描触摸屏的所有通道以进行位置感测。可以通过监视至少一个通道上的总电荷并提供电压信号来实现触摸检测模式监视。当电压信号满足预定标准时，可以产生触摸事件的指示。

38. 发明授权

US08994617B2 Lifetime uniformity parameter extraction methods 有权
标题翻译：寿命均匀参数提取方法
公开(公告)号：US08994617B2
公开(公告)日：2015-03-31
申请号：US13050006
申请日：2011-03-17
申请人： Gholamreza Chaji , Javid Jaffari , Arokia Nathan
发明人： Gholamreza Chaji , Javid Jaffari , Arokia Nathan
IPC分类号： G09G3/30 , G09G3/00 , G09G3/32
CPC分类号： G09G3/006 , G09G3/3225 , G09G2320/0233 , G09G2320/0285 , G09G2320/029 , G09G2320/043 , G09G2320/045 , G09G2330/12 , G09G2360/14
摘要： A system and method for deriving a sequence of OLED non-uniformity test patterns. A pattern generator generates a full sequence of display patterns according to a transform function, such as a discrete cosine transformation or wavelet transformation. A driver drives a display with each of the sequence of patterns. A sensor senses a property of the display, such as a total current for the display, for each of the sequence of patterns. An extraction unit derives a pixel non-uniformity model using the sensed properties and an inverse of the transform function. Patterns that contribute less than a threshold amount to the non-uniformity model can be identified and deleted to derive a sparse sequence of patterns, which can be stored in a memory. The sparse sequence of patterns can be used to test the display and extract a set of pixel non-uniformity values. The pixel non-uniformity values can be used to generate a correction signal for the display.
摘要翻译：用于导出OLED非均匀性测试图案序列的系统和方法。模式发生器根据变换函数（如离散余弦变换或小波变换）生成完整的显示模式序列。驱动器驱动具有每个模式序列的显示器。对于每个图案序列，传感器感测显示器的属性，例如显示器的总电流。提取单元使用感测到的属性和变换函数的逆，得出像素非均匀性模型。可以识别和删除贡献小于非均匀性模型的阈值量的模式以导出可以存储在存储器中的模式的稀疏序列。模式的稀疏序列可用于测试显示并提取一组像素非均匀性值。可以使用像素非均匀性值来产生用于显示的校正信号。

39. 发明授权

US08947571B2 Gain adjustable sensor pixels, arrays and array systems and methods therefor 有权
标题翻译：增益可调传感器像素，阵列和阵列系统及其方法
公开(公告)号：US08947571B2
公开(公告)日：2015-02-03
申请号：US12936930
申请日：2009-04-09
申请人： G. Reza Chaji , Arokia Nathan
发明人： G. Reza Chaji , Arokia Nathan
IPC分类号： H04N5/363 , H04N3/14 , H04N5/355 , H01L27/146
CPC分类号： H04N3/1512 , H01L27/14609 , H04N3/155 , H04N5/35518 , H04N5/374
摘要： A sensor pixel including a sensor, charge storage, a reset block having a reset input, readout block, and a charge leakage gain adjustment block having a gain adjustment control input. The sensor, charge storage, reset block, readout block, and charge leakage gain adjustment block are each operatively connected to a node. Adjusting the gain of a sensor pixel by storing charge from a sensor in a charge storage connected to a node, leaking charge from the charge storage to reduce the charge at a node, and reading out a state of the pixel represented by the charge of a node.
摘要翻译：包括传感器，电荷存储器，具有复位输入的复位块，读出块和具有增益调节控制输入的电荷泄漏增益调节块的传感器像素。传感器，电荷存储器，复位块，读出块和电荷泄漏增益调节块各自可操作地连接到节点。通过从连接到节点的电荷存储器中的传感器存储电荷来调节传感器像素的增益，从电荷存储泄漏电荷以减少节点处的电荷，并且读出由电荷的代表的像素的状态节点。

40. 发明授权

US08497828B2 Sharing switch TFTS in pixel circuits 有权
标题翻译：在像素电路中共享切换TFTS
公开(公告)号：US08497828B2
公开(公告)日：2013-07-30
申请号：US12944477
申请日：2010-11-11
申请人： Gholamreza Chaji , Arokia Nathan
发明人： Gholamreza Chaji , Arokia Nathan
IPC分类号： G09G5/00
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 circuit and driving technique to improve the display resolution of an AMOLED display. Sharing of switch transistors between several sub-pixels in the display leads to improved manufacturing yield by minimizing the number of transistors used. The method also allows for conventional sequential scan driving to be used. The circuit includes a shared switch transistor connected between a voltage data line and a shared line that is connected to a reference voltage through a reference voltage transistor, a first pixel including a first light emitting device configured to be current driven by a first drive circuit connected to the shared line through a first storage device, a second pixel including a second light emitting device configured to be current driven by a second drive circuit connected to the shared line through a second storage device, and a reference current line configured to apply a bias current to the first and second drive circuits.
摘要翻译：一种用于提高AMOLED显示器的显示分辨率的电路和驱动技术。在显示器中的几个子像素之间共享开关晶体管通过最小化使用的晶体管的数量来提高制造产量。该方法还允许使用常规的顺序扫描驱动。该电路包括连接在通过参考电压晶体管连接到参考电压的电压数据线和共享线之间的共享开关晶体管，包括第一发光器件的第一像素，该第一发光器件被配置为由连接到第一驱动电路的电流驱动通过第一存储设备到共享线路，第二像素包括被配置为由通过第二存储设备连接到共享线路的第二驱动电路驱动的第二发光器件，以及被配置为施加偏置的参考电流线电流到第一和第二驱动电路。

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