公开(公告)号：US08581835B2

公开(公告)日：2013-11-12

申请号：US13115544

申请日：2011-05-25

申请人： Tokuro Ozawa

发明人： Tokuro Ozawa

IPC分类号： G09G3/34

CPC分类号： G09G3/344 ,  G09G2300/08 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0256 ,  G09G2310/06 ,  G09G2320/0204

摘要： An electro-optical device includes a pixel circuit, and a driving circuit. The pixel circuit includes a driving transistor, a first capacitive element, an electro-optical element, and a switch. The driving circuit controls the switch to be turned off, varies a potential such that the driving transistor is turned on, during a first period, sets a potential at a control terminal to a compensation initial value by controlling the switch to be turned on, during a second period, supplies a grayscale potential corresponding to a designated grayscale, varies a driving potential such that the driving transistor is turned on, during a third period, and varies a voltage between the control terminal and a first terminal with the passage of time, during a fourth period.

摘要翻译： 电光装置包括像素电路和驱动电路。 像素电路包括驱动晶体管，第一电容元件，电光元件和开关。 驱动电路控制开关被切断，改变在驱动晶体管导通期间的电位，在第一时间段期间，通过控制开关导通来将控制端子处的电位设置为补偿初始值 提供与指定灰度相对应的灰度级电位，在第三时段期间改变驱动电位使得驱动晶体管导通，并随着时间改变控制端与第一端之间的电压， 在第四个时期。

公开(公告)号：US08144083B2

公开(公告)日：2012-03-27

申请号：US11420172

申请日：2006-05-24

申请人： Kasori Takahashi ,  Eiji Kanda ,  Tokuro Ozawa

发明人： Kasori Takahashi ,  Eiji Kanda ,  Tokuro Ozawa

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G3/3291 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/043 ,  G09G2360/144

摘要： A method for driving a light-emitting device in which a plurality of pixel circuits are arranged in correspondence with the intersection of a plurality of scanning lines and a plurality data lines, the pixel circuit having a light-emitting element and a driving transistor that controls the current amount of a driving current flowing the light-emitting device, comprises repeating the process within unit period including a first period and a second period following the first period, wherein the second period process includes selecting one scanning line of the plurality of scanning lines, and supplying and holding a data voltage corresponding to the luminance of the light-emitting element to a gate of the driving transistor via the data lines with respect to the plurality pixel circuits connected the selected scanning lines, and wherein the first period process includes selecting two or more scanning lines of the plurality of scanning lines, and correcting the unbalance of the driving current output from the driving transistor in the plurality of pixel circuits connected to the selected scanning lines.

摘要翻译： 一种用于驱动与多条扫描线和多条数据线相交的多个像素电路配置的发光装置的方法，该像素电路具有发光元件和驱动晶体管，其控制 流过发光装置的驱动电流的当前量包括在包括第一周期之后的第一周期和第二周期的单元周期内重复处理，其中第二周期处理包括选择多条扫描线中的一条扫描线 并且相对于与所选择的扫描线连接的多个像素电路经由数据线将与发光元件的亮度相对应的数据电压提供给驱动晶体管的栅极，并且其中第一周期处理包括选择 多条扫描线中的两条或更多条扫描线，并且校正驱动路线的不平衡 从连接到所选择的扫描线的多个像素电路中的驱动晶体管输出。

公开(公告)号：US20090160840A1

公开(公告)日：2009-06-25

申请号：US12379036

申请日：2009-02-11

申请人： Tokuro Ozawa ,  Ryoichi Nozawa

发明人： Tokuro Ozawa ,  Ryoichi Nozawa

IPC分类号： G06F3/038 ,  G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2320/0252 ,  G09G2320/043

摘要： To reduce time for writing a target voltage in the gate of a driving transistor. In a first period, a transistor 211 is switched on to allow a driving transistor 210 to function as a diode and transistors 212 and 213 are switched on to electrically connect the drain of the driving transistor 210 to a data line 112, to which an initial voltage is applied, such that the initial voltage is applied to the gate of the driving transistor 210. In a second period, a transistor 212 is switched off such that the gate of the driving transistor 210 is maintained to have an off voltage corresponding to the power source. In a third period, the transistor 211 is switched off such that the voltage of the data line 112 is converted into a grayscale voltage to maintain the gate of the driving transistor at the target voltage. In a fourth period, the driving transistor 210 flows the current corresponding to the maintained gate voltage to an OLED element 230.

公开(公告)号：US20080129197A1

公开(公告)日：2008-06-05

申请号：US12003915

申请日：2008-01-03

申请人： Tokuro Ozawa ,  Ayae Endo ,  Ryoichi Nozawa

发明人： Tokuro Ozawa ,  Ayae Endo ,  Ryoichi Nozawa

IPC分类号： H05B33/00

CPC分类号： H01L27/3244 ,  H01L27/3211 ,  H01L27/3239 ,  H01L27/3276 ,  H01L51/0005

摘要： A method of manufacturing an electro-optical device having a plurality of unit regions arranged in a matrix on a surface of a flat plate-shaped base substrate. In each of the plurality of unit regions, a pixel electrode is formed. A counter electrode is formed on an opposite side to the base substrate with respect to the pixel electrodes. In pixel regions, which are first unit regions constituting a predetermined image among the plurality of unit regions, OLED elements are selectively formed. The OLED elements are interposed between the respective pixel electrodes and the counter electrode. In non-pixel regions, which are second unit regions other than the first unit regions among the plurality of unit regions, insulators are formed. The insulators are interposed between the respective pixel electrodes and the counter electrode.

摘要翻译： 一种制造具有在平板状基底基板的表面上以矩阵排列的多个单位区域的电光装置的制造方法。 在多个单位区域的每一个中，形成像素电极。 相对于像素电极，在与基底基板相反的一侧形成对电极。 在构成多个单位区域中的预定图像的第一单位区域的像素区域中，选择性地形成OLED元件。 OLED元件插入在各个像素电极和对电极之间。 在除了多个单位区域中的第一单位区域以外的第二单位区域的非像素区域中，形成绝缘体。 绝缘体插入在各个像素电极和对电极之间。

公开(公告)号：US20070296652A1

公开(公告)日：2007-12-27

申请号：US11889892

申请日：2007-08-17

申请人： Yoichi Imamura ,  Toshiyuki Kasai ,  Tokuro Ozawa

发明人： Yoichi Imamura ,  Toshiyuki Kasai ,  Tokuro Ozawa

IPC分类号： G09G3/30

CPC分类号： G09G3/3241 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/043 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0254 ,  G09G2310/0256 ,  G09G2320/0261 ,  G09G2320/043

摘要： The invention provides an electro-optical device having circuits for driving electro-optical elements, such as organic EL elements, and a driving device, which can employ driving elements having low driving ability, such as α-TFTs. By providing a charge storage capacitor between the source electrode and the gate electrode of a driving transistor which is between power sources, the electro-optical device can allow the driving transistor to control a driving current, even when an electro-optical element is connected to the source side of the driving transistor. In addition, driving data can be stored in the charge storage capacitor by applying a predetermined voltage to the source electrode of the driving transistor.

摘要翻译： 本发明提供一种电光装置，其具有用于驱动诸如有机EL元件的电光元件的电路，以及可以采用诸如α-TFT之类的具有低驱动能力的驱动元件的驱动装置。 通过在源电极之间的驱动晶体管的源电极和栅电极之间设置电荷存储电容器，即使将电光元件连接到电光元件也可以允许驱动晶体管控制驱动电流 驱动晶体管的源极侧。 此外，通过向驱动晶体管的源电极施加预定电压，可以将驱动数据存储在电荷存储电容器中。

公开(公告)号：US20070109485A1

公开(公告)日：2007-05-17

申请号：US11651548

申请日：2007-01-10

申请人： Tsukasa Eguchi ,  Shinsuke Fujikawa ,  Tokuro Ozawa

发明人： Tsukasa Eguchi ,  Shinsuke Fujikawa ,  Tokuro Ozawa

IPC分类号： G02F1/1345

CPC分类号： G02F1/1345 ,  G02F1/1309 ,  G02F1/13452

摘要： The present invention provides a systems and methods to perform an electrical test on a substrate assembly used as a TFT array substrate of a liquid-crystal device without detaching a mounted external IC. The substrate assembly can include a substrate, a peripheral circuit embedded in the substrate, a first wiring arranged on the substrate, and an external IC, mounted on the substrate, and having a first terminal connected to an interconnection portion arranged on the first wiring. The substrate assembly can further include a second wiring which extends from the interconnection portion in such a manner that the second wiring is routed in a portion of the substrate facing the integrated circuit, and a first external circuit connection terminal arranged on the second wiring in a portion of the substrate not facing the integrated circuit. The external IC is thus tested through the external circuit connection terminal.

摘要翻译： 本发明提供了一种用于在用作液晶装置的TFT阵列基板的基板组件上执行电测试而不拆卸安装的外部IC的系统和方法。 基板组件可以包括基板，嵌入在基板中的外围电路，布置在基板上的第一布线和安装在基板上的外部IC，并且具有连接到布置在第一布线上的互连部分的第一端子。 基板组件还可以包括从布线部分延伸的第二布线，使得第二布线在面向集成电路的基板的一部分中布线，以及布置在第二布线上的第一外部电路连接端子 衬底的不面向集成电路的部分。 外部IC通过外部电路连接端子进行测试。

公开(公告)号：US20060092148A1

公开(公告)日：2006-05-04

申请号：US11243427

申请日：2005-10-05

申请人： Tokuro Ozawa ,  Ryoichi Nozawa

发明人： Tokuro Ozawa ,  Ryoichi Nozawa

IPC分类号： G09G5/00

CPC分类号： G09G3/3233 ,  G09G3/2025 ,  G09G3/2081 ,  G09G3/22 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2300/0866 ,  G09G2300/0876

摘要： An electro-optical device includes a plurality of pixel circuits that are disposed to correspond to intersections of a plurality of scanning lines and a plurality of data lines, a scanning line driving circuit that sequentially selects the plurality of scanning lines to apply a selection voltage to the selected scanning line, a data line driving circuit that applies any one of an on voltage and an off voltage to the plurality of data lines in accordance with gray-scale levels of pixel circuits corresponding to intersections of the data lines and the selected scanning line by the scanning line driving circuit, and a signal supply circuit that supplies a driving signal, of which the level periodically changes, to a signal supply line. Each of the pixel circuits has a first transistor in which, when the on voltage is applied to a gate electrode, a first terminal is connected to a second terminal, an electro-optical element that is connected to the first terminal of the first transistor, a first capacitor one end of which is connected to the second terminal of the first transistor and simultaneously the other end of which is connected to the signal supply line, a second capacitor one end of which is connected to the gate electrode of the first transistor, and a second transistor in which, when the selection voltage is applied to a gate electrode connected to a corresponding scanning line, a first terminal connected to a corresponding data line is connected to a second terminal connected to one end of the second capacitor.

公开(公告)号：US20050237283A1

公开(公告)日：2005-10-27

申请号：US11091544

申请日：2005-03-29

申请人： Tokuro Ozawa ,  Eiji Kanda ,  Ryoichi Nozawa

发明人： Tokuro Ozawa ,  Eiji Kanda ,  Ryoichi Nozawa

IPC分类号： H01L51/50 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  H05B33/14

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/043

摘要： To reduce a time for applying a target voltage to a gate of a driving transistor. During an initializing period, both ends of a capacitive element become a short-circuited state by turning on transistors, so that node A and B becomes a voltage made by subtracting the threshold voltage Vthp of the driving transistor from a power source voltage VEL. During a writing period, the transistor is turned on and a data signal X-j is supplied to change the voltage at the node B as much as a voltage corresponding the current which is to flow into an OLED element. The node A is changed from the threshold voltage as much as the value obtained by dividing the voltage change by capacity ratio. During a light-emitting period, the transistor is turned on, so that the current corresponding to the voltage at the node A flows through the OLED element.

摘要翻译： 以减少将目标电压施加到驱动晶体管的栅极的时间。 在初始化期间，电容元件的两端通过导通晶体管而成为短路状态，使得节点A和B成为通过减去驱动晶体管的阈值电压V th thp而得到的电压 从电源电压V EL EL。 在写入周期期间，晶体管导通，并且提供数据信号X-j以将节点B处的电压改变为与流入OLED元件的电流相对应的电压。 节点A的阈值电压与通过将电压变化除以容量比得到的值相同。 在发光周期期间，晶体管导通，使得与节点A处的电压相对应的电流流过OLED元件。

公开(公告)号：US06864874B1

公开(公告)日：2005-03-08

申请号：US09689658

申请日：2000-10-13

申请人： Tokuro Ozawa

发明人： Tokuro Ozawa

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  G09G5/00 ,  H01L29/786

CPC分类号： G09G3/3685 ,  G09G2310/027

摘要： An electro-optical device is provided that can accurately supply voltages, which correspond to analog image signals, to pixels without being affected by switching noise and leakage, and that can perform high speed sampling of analog image signals. An analog image signal is first held in a capacitor. Thereafter, this analog image signal is converted by an A/D converter into a digital signal in a time that is shorter than one horizontal scanning period. Subsequently, the digital signal is held in a latch. Further, when the analog image signal is applied to a data line, the transfer of the digital signal from the latch to another latch and the D/A conversion thereof by a D/A converter are performed.

摘要翻译： 提供了一种电光装置，可以将精确地对应于模拟图像信号的电压提供给像素而不受切换噪声和泄漏的影响，并且可以对模拟图像信号进行高速采样。 模拟图像信号首先保持在电容器中。 此后，该模拟图像信号在比一个水平扫描周期短的时间内由A / D转换器转换成数字信号。 随后，数字信号被保持在锁存器中。 此外，当将模拟图像信号施加到数据线时，执行数字信号从锁存器到另一个锁存器的转换以及D / A转换器的D / A转换。

公开(公告)号：US20050001794A1

公开(公告)日：2005-01-06

申请号：US10828438

申请日：2004-04-21

申请人： Hayato Nakanishi ,  Tokuro Ozawa ,  Takashi Miyazawa

发明人： Hayato Nakanishi ,  Tokuro Ozawa ,  Takashi Miyazawa

IPC分类号： H05B33/12 ,  G09G3/00 ,  G09G3/20 ,  G09G3/30 ,  G09G3/32 ,  H01L51/50

CPC分类号： G09G3/006 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/02 ,  G09G2330/028 ,  G09G2330/12

摘要： To suppress an off leak current of a switching element arranged along a data line to control degradation of tonal gradation in an arrangement in which an organic electro-luminescent element OLED is driven using a current programming method, a first switching element is set to be in a non-conductive state and a second switching element is set to be in a conductive state during a normal mode. During a test mode, the first switching element is set to be in a conductive state while the second switching element is set to be in a non-conductive state.

摘要翻译： 为了抑制沿着数据线布置的开关元件的泄漏电流，以控制使用当前编程方法驱动有机电致发光元件OLED的布置中的色调等级的劣化，将第一开关元件设置为 在正常模式期间将非导通状态和第二开关元件设置为导通状态。 在测试模式期间，第一开关元件被设置为处于导通状态，而第二开关元件被设定为非导通状态。