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    • 2. 发明申请
    • Driver, display and recorder
    • 驱动程序,显示和录像机
    • US20050122150A1
    • 2005-06-09
    • US10994310
    • 2004-11-23
    • Masami IsekiSomei KawasakiFujio KawanoTakanori Yamashita
    • Masami IsekiSomei KawasakiFujio KawanoTakanori Yamashita
    • G09G3/30G09F9/30G09G3/20G09G3/32H03K5/153
    • G09G3/3283G09G3/3241G09G3/325G09G3/3266G09G2300/0842G09G2300/0861G09G2310/0289G09G2330/021G09G2330/026G09G2330/045
    • 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.
    • 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。
    • 3. 发明授权
    • Driver with driving current interruption
    • 驱动电流中断驱动
    • US07817114B2
    • 2010-10-19
    • US10994310
    • 2004-11-23
    • Masami IsekiSomei KawasakiFujio KawanoTakanori Yamashita
    • Masami IsekiSomei KawasakiFujio KawanoTakanori Yamashita
    • H03K5/153
    • G09G3/3283G09G3/3241G09G3/325G09G3/3266G09G2300/0842G09G2300/0861G09G2310/0289G09G2330/021G09G2330/026G09G2330/045
    • 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.
    • 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。
    • 4. 发明申请
    • Current programming apparatus, active matrix type display apparatus, and current programming method
    • 现行编程装置,有源矩阵型显示装置和现行编程方法
    • US20060114194A1
    • 2006-06-01
    • US11283743
    • 2005-11-22
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • G09G3/30
    • G09G3/325G09G2300/0842G09G2310/0248G09G2320/0223
    • 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.
    • 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。
    • 6. 发明申请
    • Programming circuit, light emitting device using the same, and display device
    • 编程电路,使用相同的发光装置和显示装置
    • US20060120357A1
    • 2006-06-08
    • US11290578
    • 2005-12-01
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • H04L12/66
    • G09G3/3283G09G3/325G09G2300/0842G09G2300/0861G09G2320/0233
    • 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.
    • 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。
    • 7. 发明授权
    • Current programming apparatus, matrix display apparatus and current programming method
    • 当前编程设备,矩阵显示设备和当前编程方法
    • US07903053B2
    • 2011-03-08
    • US11275011
    • 2005-12-01
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • Somei KawasakiMasami IsekiFujio KawanoTakanori Yamashita
    • G09G3/30
    • G09G3/3283G09G3/325G09G2300/0426G09G2300/0861G09G2310/0251G09G2320/0223
    • 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.
    • 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。
    • 10. 发明授权
    • Current programming apparatus and matrix type display apparatus
    • 现行编程设备和矩阵式显示设备
    • US07969392B2
    • 2011-06-28
    • US11283862
    • 2005-11-22
    • Takanori YamashitaMasami IsekiFujio Kawano
    • Takanori YamashitaMasami IsekiFujio Kawano
    • G09G3/30G09G3/10
    • G09G3/325G09G2300/0861G09G2320/029G09G2320/043
    • A matrix type display apparatus includes a pixel circuit unit including electroluminescent elements and pixel circuits driving the electroluminescent elements arranged in a matrix, a plurality of data lines, each corresponding to a column of the pixel circuits for supplying a data current to the pixel circuits, and predetermined current setting circuits for supplying to the data lines a predetermined current for reducing a current to be supplied to the data lines, according to a setting by a reference current unrelated to a displaying, at a time of black displaying of the electroluminescent elements. In addition, switches are arranged corresponding to each of the data lines between the pixel circuits and the predetermined current setting circuits, and a row scanning circuit controls on and off of the switches. The row scanning circuit turns off the switches to disconnect the pixel circuit unit and the predetermined current setting circuits, and sets the predetermined current in the predetermined current setting circuits, and thereafter, the row scanning circuit turns on the switches to connect the pixel circuit unit and the predetermined current setting circuits, and to supply the data lines with the data current and the predetermined current.
    • 矩阵型显示装置包括:像素电路单元,包括电致发光元件和驱动排列成矩阵的电致发光元件的像素电路;多个数据线,分别对应于用于向像素电路提供数据电流的像素电路列, 以及预定电流设定电路,用于在电致发光元件的黑色显示时,根据与显示无关的参考电流的设置,向数据线提供用于减少要提供给数据线的电流的预定电流。 此外,开关对应于像素电路和预定电流设置电路之间的每条数据线布置,并且行扫描电路控制开关的导通和关断。 行扫描电路关闭开关以断开像素电路单元和预定电流设置电路,并将预定电流设置在预定电流设置电路中,之后行扫描电路接通开关以连接像素电路单元 和预定的电流设定电路,并向数据线提供数据电流和预定电流。