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    Light emitting device and driving method of the same
    1.
    发明授权
    Light emitting device and driving method of the same 有权
    发光装置及其驱动方法

    公开(公告)号：US08552933B2

    公开(公告)日：2013-10-08

    申请号：US10876714

    申请日：2004-06-28

    申请人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai ,  Ryota Fukumoto

    发明人： Jun Koyama ,  Mitsuaki Osame ,  Yu Yamazaki ,  Aya Anzai ,  Ryota Fukumoto

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3225 ,  G09G3/2022 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  H01L27/3262 ,  H01L2251/5323

    摘要： The invention provides a light emitting device and an element substrate in which a luminance variation of light emitting elements among pixels due to variation in characteristics of driving transistors can be suppressed even without suppressing the off-current of a switching transistor low or increasing the capacitance of a capacitor. A gate of a first transistor is connected to a first scan line, and a gate of a second transistor is connected to a second scan line. A connection between a signal line and a gate of a third transistor is controlled by the first transistor. The second transistor and the third transistor are connected in series between a pixel electrode of a light emitting element and a power supply line. The signal line, the second scan line and the power supply line are disposed in parallel, while the first scan line is crossed with the signal line, the second scan line and the power supply line.

    摘要翻译： 本发明提供了一种发光器件和元件衬底，其中即使不抑制开关晶体管的截止电流低或增加电容的电容，也可以抑制由于驱动晶体管的特性的变化而导致的像素之中的发光元件的亮度变化 一个电容器。 第一晶体管的栅极连接到第一扫描线，第二晶体管的栅极连接到第二扫描线。 信号线和第三晶体管的栅极之间的连接由第一晶体管控制。 第二晶体管和第三晶体管串联连接在发光元件的像素电极和电源线之间。 当第一扫描线与信号线，第二扫描线和电源线交叉时，信号线，第二扫描线和电源线并联布置。

    Display device and driving method of the same
    2.
    发明授权
    Display device and driving method of the same 有权
    显示装置及其驱动方法相同

    公开(公告)号：US07388562B2

    公开(公告)日：2008-06-17

    申请号：US10876734

    申请日：2004-06-28

    申请人： Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    发明人： Jun Koyama ,  Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3258 ,  G09G3/2022 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  H01L27/3244

    摘要： A display device in which the influence of a parasitic capacitance or a wiring capacitance is suppressed without lowering OFF-current of a switching transistor or increasing the capacitance of a capacitor, and a driving method thereof using area gray scale display in particular. The display device of the invention comprises a plurality of sub pixels each including a driving transistor whose gate potential is fixed, and area gray scale display is achieved. Specifically, each of the sub pixels comprises, in addition to the driving transistor, a switching transistor, a current controlling transistor connected in series with the driving transistor, and a light emitting element.

    摘要翻译： 特别是在不降低开关晶体管的截止电流或增加电容器的电容的情况下抑制寄生电容或布线电容的影响的显示装置及其驱动方法。 本发明的显示装置包括多个子像素，每个子像素包括其栅极电位固定的驱动晶体管，并且实现了区域灰度显示。 具体地，每个子像素除了驱动晶体管之外还包括开关晶体管，与驱动晶体管串联连接的电流控制晶体管和发光元件。

    Light emitting display device with reverse biasing circuit
    5.
    发明授权
    Light emitting display device with reverse biasing circuit 有权
    具有反向偏置电路的发光显示装置

    公开(公告)号：US07595775B2

    公开(公告)日：2009-09-29

    申请号：US11013932

    申请日：2004-12-17

    申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    IPC分类号： G09G3/30

    CPC分类号： G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2310/0254 ,  G09G2310/0256 ,  G09G2320/043

    摘要： A circuitry and a driving method thereof in which a reverse voltage is applied to a light emitting element to control the degradation thereof and improve reliability for a display device comprising a pixel circuit.A first power source line is connected to a signal line through a switching transistor and erasing transistor, and a current controlling transistor and driving transistor are connected in series between the first power source line and a light emitting element. An analog switch including first and second transistors whose gate electrodes are connected to the first and second power source lines respectively is provided. Further, a bias transistor whose gate electrode is connected to a third power source line, one of source and drain electrodes thereof is connected to the first power source line, and the other is connected to an output terminal of the analog switch and a scan line is provided.

    摘要翻译： 一种电路及其驱动方法，其中向发光元件施加反向电压以控制其劣化并提高包括像素电路的显示装置的可靠性。 第一电源线通过开关晶体管和擦除晶体管连接到信号线，并且电流控制晶体管和驱动晶体管串联连接在第一电源线和发光元件之间。 一种包括第一和第二晶体管的模拟开关，其栅极分别连接到第一和第二电源线。 此外，其栅电极连接到第三电源线的偏置晶体管，其源极和漏极之一连接到第一电源线，而另一个连接到模拟开关的输出端子和扫描线 被提供。

    Display device and driving method of the same
    8.
    发明授权
    Display device and driving method of the same 有权
    显示装置及其驱动方法相同

    公开(公告)号：US07471271B2

    公开(公告)日：2008-12-30

    申请号：US10860681

    申请日：2004-06-04

    申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    IPC分类号： G09G3/30 ,  G09G3/32 ,  G09G3/10

    CPC分类号： G09G3/3291 ,  G09G3/2022 ,  G09G3/3266 ,  G09G2300/043 ,  G09G2300/0823 ,  G09G2310/0254 ,  G09G2320/043

    摘要： The present invention provides a circuit configuration for applying a reverse voltage (or a reverse bias) for enhancing the reliability by controlling the degradation of the light emitting element in a display device having a pixel circuit, and a method thereof. A reverse voltage is applied to a pixel circuit having at least a switching transistor connected to a signal line, a driving transistor connected to a light emitting element, and a current controlling transistor connected to the driving transistor in series. A reverse voltage applying circuit includes an analog switch or a clocked inverter, and a reverse voltage applying transistor which is turned ON when a reverse voltage is applied.

    摘要翻译： 本发明提供一种用于通过控制具有像素电路的显示装置中的发光元件的劣化来提供反向电压（或反向偏置）以提高可靠性的电路配置及其方法。 反向电压被施加到具有至少连接到信号线的开关晶体管的像素电路，连接到发光元件的驱动晶体管和串联连接到驱动晶体管的电流控制晶体管。 反向电压施加电路包括模拟开关或时钟反相器，以及当施加反向电压时接通的反向电压施加晶体管。

    Display device and driving method of the same
    9.
    发明申请
    Display device and driving method of the same 有权
    显示装置及其驱动方法相同

    公开(公告)号：US20050001830A1

    公开(公告)日：2005-01-06

    申请号：US10860681

    申请日：2004-06-04

    申请人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    发明人： Mitsuaki Osame ,  Aya Anzai ,  Yu Yamazaki ,  Ryota Fukumoto

    IPC分类号： H01L51/50 ,  G09F9/30 ,  G09G3/14 ,  G09G3/20 ,  G09G3/30 ,  H01L27/32 ,  H01L29/786 ,  H04N5/66 ,  H05B33/14

    CPC分类号： G09G3/3291 ,  G09G3/2022 ,  G09G3/3266 ,  G09G2300/043 ,  G09G2300/0823 ,  G09G2310/0254 ,  G09G2320/043

    摘要： The present invention provides a circuit configuration for applying a reverse voltage (or a reverse bias) for enhancing the reliability by controlling the degradation of the light emitting element in a display device having a pixel circuit, and a method thereof. A reverse voltage is applied to a pixel circuit having at least a switching transistor connected to a signal line, a driving transistor connected to a light emitting element, and a current controlling transistor connected to the driving transistor in series. A reverse voltage applying circuit includes an analog switch or a clocked inverter, and a reverse voltage applying transistor which is turned ON when a reverse voltage is applied.

    摘要翻译： 本发明提供一种用于通过控制具有像素电路的显示装置中的发光元件的劣化来提供反向电压（或反向偏置）以提高可靠性的电路配置及其方法。 反向电压被施加到具有至少连接到信号线的开关晶体管的像素电路，连接到发光元件的驱动晶体管和串联连接到驱动晶体管的电流控制晶体管。 反向电压施加电路包括模拟开关或时钟反相器，以及当施加反向电压时接通的反向电压施加晶体管。

    Element substrate and light emitting device
    10.
    发明授权
    Element substrate and light emitting device 有权
    元件基板和发光器件

    公开(公告)号：US07742024B2

    公开(公告)日：2010-06-22

    申请号：US11549946

    申请日：2006-10-16

    申请人： Ryota Fukumoto ,  Aya Anzai ,  Yu Yamazaki ,  Mitsuaki Osame

    发明人： Ryota Fukumoto ,  Aya Anzai ,  Yu Yamazaki ,  Mitsuaki Osame

    IPC分类号： G09G3/30

    CPC分类号： G09G5/006 ,  G09G3/2022 ,  G09G3/3233 ,  G09G3/3275 ,  G09G2300/04 ,  G09G2300/0426 ,  G09G2300/0439 ,  G09G2300/0465 ,  G09G2300/08 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/061 ,  G09G2320/043 ,  H01L27/12 ,  H01L27/3244 ,  H01L27/3276

    摘要： No need of lowering off-current of a switching transistor, fewer luminance variations of a light emitting element between pixels due to characteristic variations of a driving transistor, and less risk of steps due to increase in the number of wirings. A video signal for light emission or non-emission of a pixel is input to a gate of a current controlling transistor operated in a linear region, which is connected in series with the driving transistor, through a switching transistor. Since a voltage Vds between a source and a drain of the current controlling transistor is small, small changes in a voltage Vgs between a gate and a source thereof do not affect a current flowing in a load. The current flowing in the light emitting element is determined by the driving transistor operated in a saturation region, and a fixed potential is input to the gate thereof during light emission.

    摘要翻译： 不需要降低开关晶体管的截止电流，由于驱动晶体管的特性变化，像素之间的发光元件的亮度变化较少，并且由于布线数量的增加而导致的步骤风险降低。 用于发光或不发射像素的视频信号通过开关晶体管输入到与驱动晶体管串联连接的线性区域中工作的电流控制晶体管的栅极。 由于电流控制晶体管的源极和漏极之间的电压Vds小，栅极和源极之间的电压Vgs的小的变化不影响在负载中流动的电流。 在发光元件中流动的电流由在饱和区域中工作的驱动晶体管确定，并且在发光期间将固定电位输入到其栅极。