公开(公告)号：US07692643B2

公开(公告)日：2010-04-06

申请号：US11283743

申请日：2005-11-22

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： G06F3/038

CPC分类号： G09G3/325 ,  G09G2300/0842 ,  G09G2310/0248 ,  G09G2320/0223

摘要： An active matrix type display apparatus includes a plurality of pixel circuits each having an electroluminescent element EL, a 1st FET to control a current flowing in the EL, and a 2nd FET provided between a gate and a drain of the 1st FET. The plurality of pixel circuits are arranged in a matrix and have every column connected to a data line. The 2nd FET is turned on for a predetermined time period, and an image data current flowing in the data line is supplied to the gate and drain of the 1st FET, thereby writing a current value of the image data current. A preliminary charging circuit is connected to the data line. Before the writing operation in the predetermined time period is expired, a current of a predetermined current value is applied to the image data current so that a gate-source voltage of the 1st FET is equal to or larger than a threshold value.

摘要翻译： 有源矩阵型显示装置包括各自具有电致发光元件EL的多个像素电路，用于控制在EL中流动的电流的第一FET，以及设置在第一FET的栅极与漏极之间的第二FET。 多个像素电路被布置成矩阵并且每列连接到数据线。 第二FET导通预定的时间段，并且流过数据线的图像数据电流被提供给第一FET的栅极和漏极，从而写入图像数据电流的当前值。 预充电电路连接到数据线。 在预定时间段内的写入操作期满之前，将预定电流值的电流施加到图像数据电流，使得第一FET的栅极 - 源极电压等于或大于阈值。

公开(公告)号：US20070229410A1

公开(公告)日：2007-10-04

申请号：US11687881

申请日：2007-03-19

申请人： Takanori YAMASHITA ,  Masami Iseki ,  Somei Kawasaki

发明人： Takanori YAMASHITA ,  Masami Iseki ,  Somei Kawasaki

IPC分类号： G09G3/30

CPC分类号： G09G3/325 ,  G09G3/2003 ,  G09G3/3283 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0272 ,  G09G2310/0297 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0666

摘要： A display apparatus includes a color display unit including pixels arranged in a matrix. The pixels includes first pixels for blue, second pixels for green, and third pixels for red, data lines connected to corresponding columns in the color display unit, and column-driving circuits connected to the columns in the color display unit and configured to convert input video-signal voltages into color-data-signal currents to be supplied to the color pixels and output the currents to the data lines. Voltage-current conversion gains of the column-driving circuits supplying color-data-signal currents to the first color pixels are set larger than those of the column-driving circuits supplying color-data-signal currents to the second and third color pixels, each of which has a luminance efficiency relative to a current higher than those of the first color pixels.

摘要翻译： 显示装置包括彩色显示单元，其包括以矩阵形式布置的像素。 像素包括用于蓝色的第一像素，用于绿色的第二像素和用于红色的第三像素，连接到彩色显示单元中的相应列的数据线，以及连接到彩色显示单元中的列的列驱动电路， 将视频信号电压转换为彩色数据信号电流，以提供给彩色像素并将电流输出到数据线。 将向第一颜色像素提供彩色数据信号电流的列驱动电路的电压 - 电流转换增益设置为大于向第二和第三彩色像素提供彩色数据信号电流的列驱动电路的电压 - 电流转换增益， 其中相对于比第一彩色像素高的电流具有亮度效率。

公开(公告)号：US20060120357A1

公开(公告)日：2006-06-08

申请号：US11290578

申请日：2005-12-01

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： H04L12/66

CPC分类号： G09G3/3283 ,  G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0233

摘要： Even if characteristics of transistors differ every circuit, in order to suppress an influence by the different characteristics and stabilize the programming operation to a control electrode of a drive transistor even if a data signal is small, there is provided a programming apparatus for programming signals which are supplied to a circuit array (61, 62) having a plurality of circuits each having transistors (M11, M12), first switching elements (M21, M22) connected to control electrodes of the transistors, and second switching elements (M31, M32) each connected to one main electrode of each of the transistors. The programming apparatus has: a current generating circuit (M3, M4) which is connected in common to each of the second switching elements of the circuit array and generates a current corresponding to a current flowing in the transistor of the selected circuit; and an operational amplifier (OPAMP1) which is connected in common to each of the first switching elements of the circuit array and supplies the program signal to the control electrode of the transistor of the selected circuit. A data signal and a signal corresponding to the current generated by the current generating circuit are inputted to the operational amplifier.

摘要翻译： 即使每个电路的晶体管的特性不同，为了抑制不同特性的影响，即使数据信号较小，也能将编程操作稳定在驱动晶体管的控制电极上，因此提供了一种用于对信号进行编程的编程装置 被提供给具有多个电路的电路阵列（61,62），每个电路各自具有晶体管（M 11，M 12），连接到晶体管的控制电极的第一开关元件（M 21，M 22）和第二开关元件 M 31，M 32），每个连接到每个晶体管的一个主电极。 编程装置具有：电流产生电路（M 3，M 4），其共同连接到电路阵列的每个第二开关元件，并产生与流过所选电路的晶体管的电流相对应的电流; 以及与电路阵列的每个第一开关元件共同连接的运算放大器（运算放大器1），并将编程信号提供给所选电路的晶体管的控制电极。 将数据信号和与电流产生电路产生的电流对应的信号输入到运算放大器。

公开(公告)号：US07903053B2

公开(公告)日：2011-03-08

申请号：US11275011

申请日：2005-12-01

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： G09G3/30

CPC分类号： G09G3/3283 ,  G09G3/325 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0223

摘要： A matrix display apparatus includes a plurality of current-driven display devices arranged along row and column directions, a first circuit provided for each of the display devices, a plurality of data lines arranged for each column, with the data lines supplying an image data signal to a plurality of pixel circuits included in each one of the columns, and a plurality of row scanning lines for transmitting a scanning signal for selecting row by row the plurality of pixel circuits. The first circuit includes a field effect transistor for supplying one of the display devices with a current, which has a control electrode and two principal electrodes, a first switch connecting the control electrode and one of the principal electrodes of the field effect transistor, and a second switch having one terminal connected to the one of the principal electrodes of the field effect transistor and having another terminal connected to one of the data lines along the column of the first circuit. The first circuits in the column are connected in successively divided manner to the plurality of the data lines through the second switch.

摘要翻译： 一种矩阵显示装置，包括沿着列和列方向排列的多个电流驱动显示装置，为每个显示装置设置的第一电路，为每列布置的多条数据线，数据线提供图像数据信号 涉及包括在每列中的多个像素电路，以及多条行扫描线，用于发送用于逐行选择的多个像素电路的扫描信号。 第一电路包括用于向显示装置中的一个提供电流的场效应晶体管，其具有控制电极和两个主电极，连接控制电极和场效应晶体管的主电极之一的第一开关，以及 第二开关具有连接到场效应晶体管的一个主电极的一个端子，并且具有连接到沿着第一电路的列的数据线之一的另一端子。 列中的第一电路通过第二开关以连续分割的方式连接到多条数据线。

公开(公告)号：US07817114B2

公开(公告)日：2010-10-19

申请号：US10994310

申请日：2004-11-23

申请人： Masami Iseki ,  Somei Kawasaki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Masami Iseki ,  Somei Kawasaki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： H03K5/153

CPC分类号： G09G3/3283 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0289 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/045

摘要： A display apparatus includes a plurality of pixel circuits, wherein each of the pixel circuits comprises a light emitting element, a drive transistor for supplying the light emitting element with a current, as a driving current, of a quantity corresponding to a potential between a gate and a source of the drive transistor, a first switch for controlling a flow of the current supplied to the light emitting element, a second switch for switching between a first state of setting the potential between the gate and the source of the drive transistor and a second state of holding the potential between the gate and the source of the drive transistor, and a circuit for supplying the first switch with a signal for switching a state of controlling the flowing of the current of the driving current. In addition, a circuit supplies the second switch with a signal for switching the second switch between the first and second states, and a circuit sets the potential between the gate and the source of the driving transistor at a potential to flow the driving current so as to set the light emitting element at a low level driving state, at a time of starting a power source or a waiting state of the power source, and under a state that the first switch suppresses the flowing of the driving current and the second switch is at the first state.

摘要翻译： 显示装置包括多个像素电路，其中每个像素电路包括发光元件，用于向发光元件提供与栅极之间的电位相对应的电流作为驱动电流的驱动晶体管 以及驱动晶体管的源极，用于控制提供给发光元件的电流的第一开关，用于在设定驱动晶体管的栅极和源极之间的电位的第一状态之间切换的第二开关和 保持驱动晶体管的栅极和源极之间的电位的第二状态，以及用于向第一开关提供用于切换控制驱动电流的电流的状态的状态的信号的电路。 此外，电路为第二开关提供用于在第一和第二状态之间切换第二开关的信号，并且电路将驱动晶体管的栅极和源极之间的电位设置为使驱动电流流过，从而 将发光元件设定在低电平驱动状态，在启动电源或电源的等待状态时，在第一开关抑制驱动电流和第二开关的流动的状态下 在第一个状态。

公开(公告)号：US20060114194A1

公开(公告)日：2006-06-01

申请号：US11283743

申请日：2005-11-22

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： G09G3/30

CPC分类号： G09G3/325 ,  G09G2300/0842 ,  G09G2310/0248 ,  G09G2320/0223

摘要： An active matrix type display apparatus in which a plurality of pixel circuits each having an electroluminescent element EL, a 1st FET to control a current flowing in the EL, and a 2nd FET provided between a gate and a drain of the 1st FET are arranged in a matrix, the plurality of pixel circuits arranged in one direction are connected to a data line every column, the 2nd FET is turned on for a predetermined time period, and an image data current flowing in the data line is supplied to the gate and drain of the 1st FET, thereby writing a current value of the image data current. A preliminary charging circuit is connected to the data line. Before the writing operation in the predetermined time period is expired, a current of a predetermined current value is applied to the image data current so that a gate-source voltage of the 1st FET is equal to or larger than a threshold value. Thus, writing imperfection due to a variation in threshold voltage of the 1st FET is solved.

摘要翻译： 一种有源矩阵型显示装置，其中分别具有电致发光元件EL的多个像素电路，用于控制在EL中流动的电流的第一FET，以及设置在第一FET的栅极和漏极之间的第二FET设置在 矩阵，沿一个方向布置的多个像素电路每列连接到数据线，第二FET导通预定时间段，并且流过数据线的图像数据电流被提供给栅极和漏极 从而写入图像数据电流的当前值。 预充电电路连接到数据线。 在预定时间段内的写入操作期满之前，将预定电流值的电流施加到图像数据电流，使得第一FET的栅极 - 源极电压等于或大于阈值。 因此，解决了由于第一FET的阈值电压的变化引起的写入缺陷。

公开(公告)号：US20060132395A1

公开(公告)日：2006-06-22

申请号：US11275011

申请日：2005-12-01

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： G09G3/22

CPC分类号： G09G3/3283 ,  G09G3/325 ,  G09G2300/0426 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2320/0223

摘要： A current programming apparatus having two data lines for a pixel line is presented. An image data current is supplied to the first and the second data lines alternatively by switching M1 and M2 complementally. By switching M7 and M8 on during the switches M1 and M2 turn on respectively, a constant current is supplied to the data line to which the data current is not supplied. The scanning signals are applied so as to write a constant current into pixels immediately before the data current is written. Thus a write-in defect by a fluctuation in the threshold voltages is prevented.

摘要翻译： 提出了一种具有用于像素线的两条数据线的当前编程设备。 通过互补地切换M 1和M 2，将图像数据电流交替地提供给第一和第二数据线。 通过在开关M 1和M 2分别导通时切换M 7和M 8导通，向不提供数据电流的数据线提供恒定电流。 施加扫描信号，以便在写入数据电流之前将恒定电流写入像素。 因此，防止了由阈值电压的波动引起的写入缺陷。

公开(公告)号：US20050122150A1

公开(公告)日：2005-06-09

申请号：US10994310

申请日：2004-11-23

申请人： Masami Iseki ,  Somei Kawasaki ,  Fujio Kawano ,  Takanori Yamashita

发明人： Masami Iseki ,  Somei Kawasaki ,  Fujio Kawano ,  Takanori Yamashita

IPC分类号： G09G3/30 ,  G09F9/30 ,  G09G3/20 ,  G09G3/32 ,  H03K5/153

CPC分类号： G09G3/3283 ,  G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0289 ,  G09G2330/021 ,  G09G2330/026 ,  G09G2330/045

摘要： The present application discloses a driver having a configuration comprising: a drive transistor for supplying a current of the quantity corresponding to a gate potential, into the element as a driving current; a first switch installed in the path of the driving current passing between the element and the drive transistor, for controlling the flow of the driving current; a second switch for switching between the first state of setting the gate potential of the drive transistor and the second state of keeping the set gate potential; a circuit for supplying a signal for controlling the flow of the driving current in a restricted state to the first switch, for a predetermined period in a period after the starting the supply of the potential for driving the drive transistor from a power source and until start of driving the element in a normal operation; a circuit for supplying a signal for setting the second switch at the first state, to the second switch: and a circuit for interrupting a signal for setting the gate potential while the second switch is in the first state in the predetermined period.

摘要翻译： 本申请公开了一种驱动器，其具有如下结构：驱动晶体管，用于将与栅极电位相对应的量的电流作为驱动电流提供到元件中; 安装在通过元件和驱动晶体管之间的驱动电流的路径中的第一开关，用于控制驱动电流的流动; 第二开关，用于在设置驱动晶体管的栅极电位的第一状态和保持所设置的栅极电位的第二状态之间切换; 在开始从电源驱动驱动晶体管的电位开始到起动之间的期间内，将预定时间段提供用于将限制状态下的驱动电流的流动控制到第一开关的电路 在正常操作中驱动元件; 用于向第二开关提供用于将第二开关设置的信号的电路提供给第二开关;以及用于在第二开关处于预定周期中处于第一状态时中断用于设置栅极电位的信号的电路。

公开(公告)号：US08305325B2

公开(公告)日：2012-11-06

申请号：US12063306

申请日：2007-03-30

申请人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano

发明人： Somei Kawasaki ,  Masami Iseki ,  Fujio Kawano

IPC分类号： G09G3/36

CPC分类号： G09G3/3241 ,  G09G3/3275 ,  G09G2300/0408 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0297

摘要： A color display apparatus includes a display unit having electro-optical elements arranged in a row direction and a column direction, scanning lines provided in respective rows of the electro-optical elements to select respective rows, and data lines provided in respective columns and supplying data signals to electro-optical elements in the row which the scanning lines select, and conversion circuits each of which receives a digital video signal and converts the digital video signal to an analog video signal. In addition, a first dispersion circuit receives the analog video signals outputted from the conversion circuits and exchanges an arrangement of the analog video signals to output to bus lines, column drive circuits sample the analog video signals in the bus lines in a time sharing manner and generate and output the data signals, and a second dispersion circuit receives the data signals outputted from the column drive circuits and rearranges the data signals to output to the data lines. The rearranging of the data signals by the second dispersion circuit restores the exchanging of the arrangement by the first dispersion circuit.

摘要翻译： 一种彩色显示装置，包括具有排列成行方向和列方向的电光元件的显示单元，设置在电光元件的各行中的扫描线，以选择各行，以及设置在各列中的数据线，并提供数据 信号到扫描线选择的行中的电光元件，以及各自接收数字视频信号并将数字视频信号转换为模拟视频信号的转换电路。 此外，第一色散电路接收从转换电路输出的模拟视频信号并交换模拟视频信号的布置以输出到总线，列驱动电路以时分方式对总线中的模拟视频信号进行采样， 产生并输出数据信号，第二色散电路接收从列驱动电路输出的数据信号，并重新排列数据信号以输出到数据线。 由第二色散电路重新排列数据信号，恢复由第一色散电路进行的配置的交换。

公开(公告)号：US07532207B2

公开(公告)日：2009-05-12

申请号：US10790738

申请日：2004-03-03

申请人： Somei Kawasaki ,  Fujio Kawano ,  Masami Iseki

发明人： Somei Kawasaki ,  Fujio Kawano ,  Masami Iseki

IPC分类号： G09G3/1029

CPC分类号： G09G3/3283 ,  G09G3/006 ,  G09G3/325 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/029 ,  G09G2320/043

摘要： For making outputs of a drive circuits accurate, the drive circuit is composed of a plurality of current signal generation circuits for outputting a current signal to each of a plurality of output units, a current signal output line to which outputs of the plurality of current signal generation circuits are commonly connected, a correction value output circuit for outputting a correction value obtained by evaluating the output of one or more specific circuits of the plurality of current signal generation circuits on a basis of current values output through the current signal output line, and a correction circuit for correcting an image signal supplied to the current signal generation circuits by means of the correction value.

摘要翻译： 为了使驱动电路的输出精确，驱动电路由多个电流信号生成电路构成，用于向多个输出单元中的每一个输出电流信号，电流信号输出线，多个电流信号的输出 通常连接发电电路，校正值输出电路，用于输出通过基于通过电流信号输出线输出的电流值来评估多个电流信号发生电路的一个或多个特定电路的输出而获得的校正值，以及 校正电路，用于通过校正值校正提供给当前信号发生电路的图像信号。