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41. 发明授权

US08471875B2 Method and system for driving light emitting display 有权
标题翻译：用于驱动发光显示器的方法和系统
公开(公告)号：US08471875B2
公开(公告)日：2013-06-25
申请号：US12510780
申请日：2009-07-28
申请人： G. Reza Chaji , Kongning Li , Vasudha Gupta , Arokia Nathan
发明人： G. Reza Chaji , Kongning Li , Vasudha Gupta , Arokia Nathan
IPC分类号： G09G5/10
CPC分类号： G09G3/3696 , G09G3/20 , G09G3/3266 , G09G3/3275 , G09G3/3677 , G09G3/3688 , G09G2300/0452 , G09G2310/0218 , G09G2310/0267 , G09G2310/027 , G09G2310/0286 , G09G2310/0294 , G09G2310/0297 , G09G2320/0276 , G09G2320/0673
摘要： A display system includes a driver for operating a panel having a plurality of pixels arranged by a plurality of first lines and at least one second line The driver includes a driver output unit for providing to the panel a single driver output for activating the plurality of first lines, the single driver output being demultiplexed on the panel to activate each first line.
摘要翻译：显示系统包括用于操作具有由多个第一线和至少一条第二线布置的多个像素的面板的驱动器。驱动器包括驱动器输出单元，用于向面板提供用于激活多个第一线的单个驱动器输出线路，单个驱动器输出在面板上解复用以激活每个第一行。

42. 发明申请

US20130027381A1 METHOD AND SYSTEM FOR PROGRAMMING, CALIBRATING AND DRIVING A LIGHT EMITTING DEVICE DISPLAY 有权
公开(公告)号：US20130027381A1
公开(公告)日：2013-01-31
申请号：US13568784
申请日：2012-08-07
申请人： Arokia Nathan , Gholamreza Reza Chaji , Peyman Servati
发明人： Arokia Nathan , Gholamreza Reza 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.

43. 发明授权

US08253665B2 Method and system for driving an active matrix display circuit 有权
标题翻译：用于驱动有源矩阵显示电路的方法和系统
公开(公告)号：US08253665B2
公开(公告)日：2012-08-28
申请号：US11651099
申请日：2007-01-09
申请人： Arokia Nathan , G. Reza Chaji
发明人： Arokia Nathan , G. Reza Chaji
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/3266 , G09G2300/0417 , G09G2300/0426 , G09G2300/043 , G09G2300/0809 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/0251 , G09G2310/0254 , G09G2310/0262 , G09G2310/061 , G09G2310/066 , G09G2320/029 , G09G2320/043 , G09G2320/045
摘要： A method and system for driving an active matrix display is provided. The system includes a drive circuit for a pixel having a light emitting device. The drive circuit includes a drive transistor for driving the light emitting device. The system includes a mechanism for adjusting the gate voltage of the drive transistor.
摘要翻译：提供了一种用于驱动有源矩阵显示器的方法和系统。该系统包括用于具有发光器件的像素的驱动电路。驱动电路包括用于驱动发光器件的驱动晶体管。该系统包括用于调节驱动晶体管的栅极电压的机构。

44. 发明申请

US20110227964A1 LIFETIME UNIFORMITY PARAMETER EXTRACTION METHODS 有权
标题翻译： LIFETIME均质参数提取方法
公开(公告)号：US20110227964A1
公开(公告)日：2011-09-22
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： G09G5/10
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。

45. 发明授权

US07889159B2 System and driving method for active matrix light emitting device display 有权
标题翻译：有源矩阵发光器件显示的系统和驱动方法
公开(公告)号：US07889159B2
公开(公告)日：2011-02-15
申请号：US11274957
申请日：2005-11-15
申请人： Arokia Nathan , Gholamreza Reza Chaji , Peyman Servati
发明人： Arokia Nathan , Gholamreza Reza Chaji , Peyman Servati
IPC分类号： G09G3/32
CPC分类号： G09G3/3233 , G09G3/3241 , G09G2300/043 , G09G2300/0819 , G09G2300/0842 , G09G2300/0852 , G09G2300/0861 , G09G2310/0251 , G09G2320/043
摘要： Active matrix light emitting device display and its driving technique is provided. The pixel includes a light emitting device and a plurality of transistors. A capacitor may be used to store a voltage applied to a driving transistor so that a current through the light emitting device is independent of any shifts of the transistor and light emitting device characteristics. A bias data and a programming data are provided to the pixel circuit in accordance with a driving scheme.
摘要翻译：提供了有源矩阵发光器件的显示及其驱动技术。像素包括发光器件和多个晶体管。可以使用电容器来存储施加到驱动晶体管的电压，使得通过发光器件的电流与晶体管和发光器件特性的任何偏移无关。根据驱动方案，将偏置数据和编程数据提供给像素电路。

46. 发明授权

US07800565B2 Method and system for programming and driving active matrix light emitting device pixel 有权
标题翻译：用于编程和驱动有源矩阵发光器件像素的方法和系统
公开(公告)号：US07800565B2
公开(公告)日：2010-09-21
申请号：US11298240
申请日：2005-12-07
申请人： Arokia Nathan , Gholamreza Reza Chaji , Peyman Servatl
发明人： Arokia Nathan , Gholamreza Reza Chaji , Peyman Servatl
IPC分类号： G09G3/32
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。

47. 发明授权

US07629633B2 Vertical thin film transistor with short-channel effect suppression 有权
标题翻译：具有短沟道效应抑制的垂直薄膜晶体管
公开(公告)号：US07629633B2
公开(公告)日：2009-12-08
申请号：US11332483
申请日：2006-01-17
申请人： Isaac Wing Tak Chan , Arokia Nathan
发明人： Isaac Wing Tak Chan , Arokia Nathan
IPC分类号： H01L31/112
CPC分类号： H01L29/78642 , H01L29/66787 , H01L29/78696
摘要： A vertical thin film transistor (TFT) structure allows for a channel length to be scaled down, below that allowed by lateral TFT structures, to nanoscale (i.e., below 100 nm). However, while reducing the channel length, short-channel effects have been found in previous VTFT structures. Aspects of the new vertical TFT structure allow for the suppression of some of the short-channel effects. Advantageously, the capability of defining nanoscale channel length with short-channel effect suppression allows for p-channel vertical TFTs, where previously these were impractical. Furthermore, in aspects of the vertical TFT structure, the gate electrode is entirely vertical and by eliminating the horizontal overlap of the gate electrode over the drain electrode that present in earlier vertical TFT structures, parasitic gate-to-drain capacitance is eliminated. The vertical TFT structure provides size advantages over lateral TFTs and, furthermore, allows a TFT to be built at the intersection of electrode lines in an active-matrix configuration.
摘要翻译：垂直薄膜晶体管（TFT）结构允许将沟道长度按比例缩小到低于横向TFT结构允许的长度，达到纳米尺度（即，低于100nm）。然而，在减少通道长度的同时，在以前的VTFT结构中也发现了短通道效应。新的垂直TFT结构的方面允许抑制一些短信道效应。有利地，通过短沟道效应抑制来限定纳米尺度通道长度的能力允许p沟道垂直TFT，其中先前是不切实际的。此外，在垂直TFT结构的方面，栅极完全是垂直的，并且通过消除在较早的垂直TFT结构中存在的漏极上的栅电极的水平重叠，消除了寄生栅 - 漏电容。垂直TFT结构提供了超过横向TFT的尺寸优点，此外，允许在有源矩阵配置的电极线的交叉处构建TFT。

48. 发明申请

US20090262101A1 PIXEL CIRCUIT, DISPLAY SYSTEM AND DRIVING METHOD THEREOF 有权
标题翻译：像素电路，显示系统及其驱动方法
公开(公告)号：US20090262101A1
公开(公告)日：2009-10-22
申请号：US12424185
申请日：2009-04-15
申请人： Arokia Nathan , G. Reza Chaji , J. Marcel Dionne
发明人： Arokia Nathan , G. Reza Chaji , J. Marcel Dionne
IPC分类号： G09G5/00
CPC分类号： G09G3/3233 , G09G3/3291 , G09G2300/0819 , G09G2300/0842 , G09G2310/0254 , G09G2310/0256 , G09G2320/043 , G09G2320/045 , G09G2320/048 , G09G2330/027
摘要： A display system and method for the same is provided. A display includes a plurality of pixels, each having a light emitting device and a driving transistor for driving the light emitting device, the driving transistor and the light emitting device being coupled in series between a first power supply and a second power supply. The method includes: at a first frame, programming a pixel with a first programming voltage different from a programming voltage for a valid image, and charging at least one of the first power supply and the second power supply so that at least one of the driving transistor and the light emitting device is under a negative bias. The pixel circuit includes: a light emitting device; a driving transistor for driving the light emitting device, the driving transistor having a gate terminal, a first terminal coupled to the light emitting device, and a second terminal; a storage capacitor; a first switch transistor coupled to a data line for providing a programming data and the gate terminal of the driving transistor; and a second switch transistor for reducing a threshold voltage shift of the driving transistor, the storage capacitor and the second switch transistor being coupled in parallel to the gate terminal of the driving transistor and the first terminal of the driving transistor. The method includes: at a first cycle, implementing an image display operation having programming the pixel circuit for a valid image and driving the light emitting device; and at a second cycle, implementing a relaxation operation for reducing a stress on the pixel circuit, including: selecting a relaxation switch transistor coupled to the storage capacitor in parallel.
摘要翻译：提供了一种显示系统及其方法。显示器包括多个像素，每个像素具有发光器件和用于驱动发光器件的驱动晶体管，驱动晶体管和发光器件串联耦合在第一电源和第二电源之间。该方法包括：在第一帧处，编程具有不同于有效图像的编程电压的第一编程电压的像素，以及对第一电源和第二电源中的至少一个进行充电，使得至少一个驱动晶体管，发光器件处于负偏压状态。像素电路包括：发光器件; 用于驱动所述发光器件的驱动晶体管，所述驱动晶体管具有栅极端子，耦合到所述发光器件的第一端子和第二端子; 存储电容器; 耦合到用于提供编程数据的数据线和驱动晶体管的栅极端子的第一开关晶体管; 以及用于减小驱动晶体管的阈值电压偏移的第二开关晶体管，存储电容器和第二开关晶体管并联耦合到驱动晶体管的栅极端子和驱动晶体管的第一端子。该方法包括：在第一周期，实现具有用于有效图像的像素电路编程并驱动发光器件的图像显示操作; 并且在第二周期，实现用于减小像素电路上的应力的松弛操作，包括：选择并联耦合到存储电容器的松弛开关晶体管。

49. 发明申请

US20090212287A1 THIN FILM TRANSISTOR AND METHOD FOR FORMING THE SAME 审中-公开
标题翻译：薄膜晶体管及其形成方法
公开(公告)号：US20090212287A1
公开(公告)日：2009-08-27
申请号：US12259405
申请日：2008-10-28
申请人： Arokia Nathan , Andrei Sazonov , Mohammed Reza Esmaeili Rad
发明人： Arokia Nathan , Andrei Sazonov , Mohammed Reza Esmaeili Rad
IPC分类号： H01L29/786 , H01L21/336
CPC分类号： H01L29/04 , H01L29/66765 , H01L29/7866 , H01L29/78696
摘要： A thin film transistor (TFT) and the method of forming the same is provided. The method of forming the TFT on a surface of a substrate, includes the steps of: forming a gate electrode; deposing a gate dielectric on the gate electrode; forming a nanocrystalline silicon (nc-Si) layer and an amorphous silicon (a-Si:H) layer above the gate dielectric, so that the thickness of the nc-Si layer is less than 30 nm thereby reducing off-current; and forming a source/drain electrode. The TFT includes: a gate electrode on a substrate, a gate dielectric on the gate electrode; a nc-Si layer having a thickness less than 30 nm, thereby reducing off-current; an a-Si:H layer; and a source/drain electrode.
摘要翻译：提供薄膜晶体管（TFT）及其形成方法。在基板的表面上形成TFT的方法包括以下步骤：形成栅电极; 在栅电极上去除栅极电介质; 在栅极电介质上方形成纳米晶硅（nc-Si）层和非晶硅（a-Si：H）层，使得nc-Si层的厚度小于30nm，从而减少截止电流; 并形成源极/漏极。 TFT包括：基板上的栅极电极，栅电极上的栅极电介质; 厚度小于30nm的nc-Si层，从而减少截止电流; a-Si：H层; 和源/漏电极。

50. 发明授权

US07573452B2 Integrated multiplexer/de-multiplexer for active-matrix display/imaging arrays 有权
标题翻译：用于有源矩阵显示/成像阵列的集成多路复用器/解复用器
公开(公告)号：US07573452B2
公开(公告)日：2009-08-11
申请号：US10487034
申请日：2002-08-15
申请人： Arokia Nathan , Karim S. Karim , Nitin Mohan , Anil Kumar , Kapil Sakariya
发明人： Arokia Nathan , Karim S. Karim , Nitin Mohan , Anil Kumar , Kapil Sakariya
IPC分类号： G09G3/36
CPC分类号： G09G3/3677
摘要： Integrated multiplexer/de-multiplexer for a pixel array is provided. A drive circuit having the de-multiplexer is provided to a gate line arranged for a pixel array. A pixel is selected using the drive circuit. A read circuit having the multiplexer is provided to a data line arranged for the pixel array. Data output from a pixel is read using the read circuit.
摘要翻译：提供了用于像素阵列的集成多路复用器/去多路复用器。具有去多路复用器的驱动电路被提供给布置用于像素阵列的栅极线。使用驱动电路选择像素。具有多路复用器的读取电路被提供给布置用于像素阵列的数据线。使用读取电路读取来自像素的数据输出。

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