公开(公告)号：US07903056B2

公开(公告)日：2011-03-08

申请号：US11770144

申请日：2007-06-28

申请人： Somei Kawasaki ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Takanori Yamashita

IPC分类号： G09G3/12 ,  G09G3/30 ,  G09G5/00 ,  G09G5/10 ,  G06F3/038

CPC分类号： G09G3/3283 ,  G09G2320/0233

摘要： A voltage-current converting converts a voltage signal into a current signal. In an example operation, a source of a transistor is connected to a first power source, the source is connected to an input terminal via a coupling capacitor, and a gate and a drain of the transistor are connected to a second power source so that current flows between the source and the drain while a constant voltage is applied to the input terminal. To output the current signal, the drain is disconnected from the second power source, the voltage signal is supplied from the input terminal to the holding capacitor via the coupling capacitor, the coupling capacitor is disconnected from the input terminal, the gate is disconnected from the second power source, the drain is connected to the second power source, and the source is connected to an output terminal.

摘要翻译： 电压 - 电流转换将电压信号转换为电流信号。 在示例性操作中，晶体管的源极连接到第一电源，源极通过耦合电容器连接到输入端子，并且晶体管的栅极和漏极连接到第二电源，使得电流 在输入端子施加恒定电压时在源极和漏极之间流动。 为了输出电流信号，漏极与第二电源断开，电压信号通过耦合电容器从输入端子提供给保持电容器，耦合电容器与输入端子断开，栅极与 第二电源，漏极连接到第二电源，源连接到输出端。

公开(公告)号：US20090121980A1

公开(公告)日：2009-05-14

申请号：US12091230

申请日：2007-06-29

申请人： Somei Kawasaki ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Takanori Yamashita

IPC分类号： G09G3/30

CPC分类号： G09G3/30 ,  G09G3/20 ,  G09G3/3283 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/0272 ,  G09G2310/0297 ,  G09G2320/0233 ,  H01L27/1296 ,  H01L27/3244

摘要： A display apparatus has a plurality of column-current generating circuits for supplying signal currents respectively to the corresponding columns of a plurality of EL devices that are arranged two-dimensionally. Each of the column-current generating circuits includes two or more transistor devices the gates, sources and drains of which are respectively connected in parallel so as to function as a single transistor. The transistor devices are arranged at a pitch equal to or n-times of the alignment period in the row direction of the EL devices and at a constant pitch equal to the alignment period in the column direction of the EL devices.

摘要翻译： 显示装置具有多个用于将信号电流分别提供给二维布置的多个EL器件的相应列的列电流产生电路。 每个列电流产生电路包括两个或更多个晶体管器件，其栅极，源极和漏极分别并联连接，以用作单个晶体管。 晶体管器件以等于EL器件的行方向的取向周期等于或n倍的间距并且以等于EL器件的列方向上的取向周期的恒定间距排列。

公开(公告)号：US20070097037A1

公开(公告)日：2007-05-03

申请号：US11552233

申请日：2006-10-24

申请人： Takanori Yamashita ,  Somei Kawasaki

发明人： Takanori Yamashita ,  Somei Kawasaki

IPC分类号： G09G3/30

CPC分类号： G09G3/3258 ,  G09G2300/0439 ,  G09G2300/0842 ,  G09G2300/0895 ,  G09G2310/0262 ,  G09G2310/0275 ,  G09G2320/0209

摘要： An active matrix-type display apparatus, includes a plurality of pixels 101, each comprising a display device and an active element, arranged two-dimensionally; a plurality of data signal lines 102 extending in a direction; and a plurality of power lines 103 extending in a direction perpendicular to the data signal lines. The power lines 103 have a line width, at intersections of the data signal lines 102 and the power lines 103, smaller than that at a position other than the intersections. Alternatively, at the intersections, each of the power line 103 is branched into a plurality of power lines 103 so that a sum of line widths of the branched power line power lines 103 is smaller than a line width of the power lines 103 at the position other than the intersections.

摘要翻译： 有源矩阵型显示装置包括多个像素101，每个像素包括二维布置的显示装置和有源元件; 沿方向延伸的多条数据信号线102; 以及沿垂直于数据信号线的方向延伸的多条电源线103。 电源线103在数据信号线102和电源线103的交点处具有比在交叉点以外的位置处的线宽小的线宽。 或者，在交叉点处，电力线103分支成多个电力线103，使得分支电力线电力线103的线宽的总和小于电力线103的位置的线宽 除了十字路口。

公开(公告)号：US07872617B2

公开(公告)日：2011-01-18

申请号：US11539442

申请日：2006-10-06

申请人： Takanori Yamashita ,  Somei Kawasaki

发明人： Takanori Yamashita ,  Somei Kawasaki

IPC分类号： G09G3/32

CPC分类号： G09G3/325 ,  G09G3/3283 ,  G09G2300/0842 ,  G09G2310/0297 ,  G09G2320/0242 ,  G09G2320/0666 ,  G09G2330/021

摘要： A display apparatus includes a matrix display unit including light-emitting devices that emit light of one of a plurality of colors with a brightness corresponding to a current and pixel circuits that drive the light-emitting devices, a plurality of column control circuits that receive input image signals and generate and output current-data signals, and a plurality of data lines each provided for each column of the matrix display unit to transfer the current-data signal output from the column control circuit to one of the pixel circuits in the column. The light-emitting devices have different current-luminance efficiencies depending on colors of emitted lights, and the plurality of data lines are divided into sets of data lines, each set of data lines transferring the current-data signals of the plurality of colors to the pixel circuits, and the number of data lines in the set of data lines is equal to the number of colors. In addition, one set of the column control circuits, comprised of a number larger than a number of colors of the display unit, is provided for one set of the data lines, comprised of a number equal to the number of colors.

摘要翻译： 显示装置包括：矩阵显示单元，包括发光装置，该发光装置发射具有与驱动发光装置的电流和像素电路对应的亮度的多种颜色之一的光;多个列控制电路，其接收输入 图像信号，并且生成和输出电流数据信号，以及多个数据线，每个数据线被提供给矩阵显示单元的每列，以将从列控制电路输出的当前数据信号传送到列中的像素电路之一。 发光装置根据发光的颜色具有不同的电流 - 亮度效率，并且将多条数据线划分成数据线组，每组数据线将多种颜色的当前数据信号传送到 像素电路，数据线组中的数据线的数量等于颜色数。 此外，对于一组数据线提供一组列数控制电路，其数量大于显示单元的颜色数量，其数量等于颜色数量。

公开(公告)号：US20080042944A1

公开(公告)日：2008-02-21

申请号：US11770144

申请日：2007-06-28

申请人： Somei Kawasaki ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Takanori Yamashita

IPC分类号： G09G3/30 ,  H02M11/00

CPC分类号： G09G3/3283 ,  G09G2320/0233

摘要： A voltage-current converting circuit turns on a transistor M1a to give a blanking signal to the gate of a transistor M5a (PMOS transistor) through capacities C1a and C2a, and turns on a transistor M3a with the transistor M5a diode-connected to supply a current from a power source voltage VCC. Next, the voltage-current converting circuit turns off the transistor M3a to intercept the supply of the current, and then resets the capacities C1a and C2a so that the gate of the transistor M5a may take a threshold voltage. Next, the voltage-current converting circuit turns off a transistor M7a to intercept the current path between the drain of the transistor M5a and the ground potential GND. In this state, the voltage-current converting circuit turns on the transistor M5a to give the video signal to the gate of the transistor M5a through the capacities C1a and C2a. Next, the voltage-current converting circuit turns on the transistor M6a to form a current path between the transistor M5a and a signal line data. Then, the voltage-current converting circuit outputs the current generated between the source of the transistor M5a and the drain thereof from the source side to the signal line data.

摘要翻译： 电压 - 电流转换电路接通晶体管M1a，通过电容C 1 a和C 2 a向晶体管M 5 a（PMOS晶体管）的栅极产生消隐信号，并将晶体管M 3 a与 晶体管M 5被二极管连接以从电源电压VCC提供电流。 接下来，电压 - 电流转换电路关闭晶体管M3a以截取电流的供应，然后使电容C 1 a和C 2 a复位，使得晶体管M 5a的栅极可以采用阈值电压 。 接下来，电压 - 电流转换电路关断晶体管M7a以截取晶体管M 5a的漏极和地电位GND之间的电流路径。 在该状态下，电压 - 电流转换电路使晶体管M5a导通，通过电容C 1 a和C 2 a将视频信号提供给晶体管M5a的栅极。 接下来，电压 - 电流转换电路接通晶体管M6a，以形成晶体管M5a和信号线数据之间的电流路径。 然后，电压 - 电流转换电路将从源极侧的晶体管M 5a的源极和漏极之间产生的电流输出到信号线数据。

公开(公告)号：US08248332B2

公开(公告)日：2012-08-21

申请号：US12182582

申请日：2008-07-30

申请人： Somei Kawasaki ,  Fujio Kawano

发明人： Somei Kawasaki ,  Fujio Kawano

IPC分类号： G09G3/30

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2320/043

摘要： An active matrix display apparatus includes two-dimensionally arranged pixel circuits, each of which includes a display element, and a plurality of signal lines and scanning lines connected to the pixel circuits. Each of the pixel circuits include a drive transistor and a capacitor, with one terminal of the capacitor being connected to a control terminal of the drive transistor and a second terminal of the capacitor being connected to a first main conductive terminal of the drive transistor and a lighting power source. In a writing operation period, a current flowing to the signal line is conducted into the drive transistor, and in a lighting operation period, a current conducting in the drive transistor is injected into the display element. At a time during the writing operation period, a potential of the lighting power source is changed toward a potential of the signal line to depress the current conducting in the drive transistor and is kept for a period, during which the current conducting in the drive transistor partially recovers from the depression. After the writing operation period, the potential of the lighting power source is restored.

摘要翻译： 有源矩阵显示装置包括二维排列的像素电路，每个像素电路包括显示元件，以及连接到像素电路的多条信号线和扫描线。 每个像素电路包括驱动晶体管和电容器，其中电容器的一个端子连接到驱动晶体管的控制端子，并且电容器的第二端子连接到驱动晶体管的第一主导电端子和 照明电源。 在写入操作期间，流入信号线的电流被导入驱动晶体管，在点亮运转期间，将驱动晶体管导通的电流注入显示元件。 在写入操作期间的时刻，点亮电源的电位向信号线的电位变化，使得驱动晶体管中的导通电压下降，并保持一段时间，在此期间，驱动晶体管 部分恢复从抑郁症。 在写入操作期后，照明电源的电位恢复。

公开(公告)号：US07929038B2

公开(公告)日：2011-04-19

申请号：US11559555

申请日：2006-11-14

申请人： Kohichi Nakamura ,  Somei Kawasaki

发明人： Kohichi Nakamura ,  Somei Kawasaki

IPC分类号： H04N5/222 ,  H01J63/04 ,  G09G3/30 ,  H01L27/14

CPC分类号： G09G3/3283 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0842 ,  G09G2300/0861 ,  H01L27/3276

摘要： A display apparatus includes a display area, in which pixels each including an EL device and a pixel circuit are arranged in a matrix on a substrate, and a column control circuit for controlling the pixel circuit column by column. The EL device is disposed between a lower pixel electrode and an upper transparent electrode on the substrate. The pixel electrode is electrically connected to the pixel circuit, and the transparent electrode is electrically connected to a common interconnecting line via a contact hole. The contact hole and the common interconnecting line are disposed to surround a periphery of the display area. The column control circuit is divided into two circuits one of which is disposed between the contact hole and the display area and the other of which is disposed outside the area between the contact hole and the display area.

摘要翻译： 显示装置包括显示区域，其中包括EL器件和像素电路的像素以矩阵形式布置在衬底上，以及列控制电路，用于逐列地控制像素电路。 EL元件设置在基板上的下部像素电极与上部透明电极之间。 像素电极与像素电路电连接，并且透明电极经由接触孔与公共互连线电连接。 接触孔和公共互连线设置成围绕显示区域的周边。 列控制电路被分成两个电路，其中之一设置在接触孔和显示区域之间，另一个设置在接触孔和显示区域之间的区域之外。

公开(公告)号：US20070146246A1

公开(公告)日：2007-06-28

申请号：US11559609

申请日：2006-11-14

申请人： Kohichi Nakamura ,  Somei Kawasaki

发明人： Kohichi Nakamura ,  Somei Kawasaki

IPC分类号： G09G3/30

CPC分类号： H01L27/3276 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861

摘要： A display apparatus capable of preventing thermal deterioration of an organic EL layer to improve a reliability without increasing a frame area thereof includes a display area, a circuit and wiring area, a pixel circuit common supply line, a contact hole, an external connection terminal, and an adhesion area. In the display area, EL devices and pixel circuits are arranged in a matrix. In the contact hole, a common voltage line and a transparent electrode electrically connected to an output of the EL device are electrically connected to each other. To the external connection terminal, an image signal, a control signal, and electric power are externally supplied. The contact hole and the common voltage line are disposed to surround a peripheral of the display area. To the pixel circuit common supply line, the electric power is supplied from the external connection terminal. In a peripheral portion of the display area where the external connection terminal is disposed, the pixel circuit common supply line is disposed outside the contact hole and the common voltage line with respect to the display area.

摘要翻译： 一种能够防止有机EL层的热劣化以提高可靠性而不增加其框架面积的显示装置包括显示区域，电路和布线区域，像素电路公共供电线，接触孔，外部连接端子， 和粘合区域。 在显示区域中，EL器件和像素电路被布置成矩阵。 在接触孔中，电连接到EL器件的输出的公共电压线和透明电极彼此电连接。 外部连接端子外部提供图像信号，控制信号和电力。 接触孔和公共电压线被设置成围绕显示区域的外围。 对于像素电路公共电源线，电力从外部连接端子供给。 在设置有外部连接端子的显示区域的周边部分中，像素电路公共供电线路相对于显示区域设置在接触孔和公共电压线的外侧。

公开(公告)号：US06860576B2

公开(公告)日：2005-03-01

申请号：US10462640

申请日：2003-06-17

申请人： Somei Kawasaki ,  Hiroyuki Maru

发明人： Somei Kawasaki ,  Hiroyuki Maru

IPC分类号： B41J2/05 ,  H03F3/45 ,  B41J29/38 ,  B41J2/36

CPC分类号： B41J2/04513 ,  B41J2/0457 ,  B41J2/0458

摘要： Power consumed by a resistor connected between a first power supply and a drive control circuit is controlled by a power driving circuit connected to a second power supply. When the value of current that flows into the resistor fluctuates, the value of current output from power driving circuit to a control terminal of the drive control circuit is controlled in such a manner that power consumed is the same as that when the resistance value of the resistor is a set value. As a result, the value of power consumed by the resistor is rendered substantially constant without being influenced by a variation in the resistance value of the driven resistor or by the power supply voltage. If such a drive circuit is used in driving the printhead of a printing apparatus, stabilized drive can be achieved with the minimum margin, power consumption can be suppressed and the lifetime of the printhead can be prolonged.

摘要翻译： 连接在第一电源和驱动控制电路之间的电阻器所消耗的功率由连接到第二电源的电力驱动电路控制。 当流入电阻器的电流值波动时，从驱动电路输出到驱动控制电路的控制端子的电流值被控制成使得功耗与 电阻是一个设定值。 结果，电阻器消耗的功率值基本上是恒定的，而不受驱动电阻器的电阻值的变化或电源电压的影响。 如果这样的驱动电路用于驱动打印装置的打印头，则可以以最小的余量实现稳定的驱动，能够抑制功耗并延长打印头的使用寿命。

公开(公告)号：US06807244B2

公开(公告)日：2004-10-19

申请号：US09736852

申请日：2000-12-14

申请人： Somei Kawasaki ,  Fujio Kawano

发明人： Somei Kawasaki ,  Fujio Kawano

IPC分类号： H03D324

CPC分类号： H03L7/16 ,  H03L7/081 ,  H03L7/0996 ,  H03L7/0998

摘要： The invention proposes a frequency synthesizer for generating an output signal having a frequency associated with that of a reference clock, in which a control oscillating circuit generates a clock signal group including a plurality of clock signals having a phase difference associated with the period of the output signal, and the oscillating frequency of the control oscillating circuit is controlled in accordance with the phase difference between a comparison clock generated by selectively using the plurality of clock signals, and the reference clock.

摘要翻译： 本发明提出了一种用于产生具有与参考时钟的频率相关联的频率的输出信号的频率合成器，其中控制振荡电路产生包括具有与输出周期相关联的相位差的多个时钟信号的时钟信号组 信号，并且根据通过选择性地使用多个时钟信号产生的比较时钟与参考时钟之间的相位差来控制控制振荡电路的振荡频率。