Method for driving light-emitting device
    21.
    发明授权
    Method for driving light-emitting device 有权
    驱动发光装置的方法

    公开(公告)号:US08957836B2

    公开(公告)日:2015-02-17

    申请号:US11730617

    申请日:2007-04-03

    IPC分类号: G09G3/30 G09G3/32

    摘要: A light emitting device capable of suppressing drop in luminance or luminance unevenness of a light emitting element due to deterioration of an electro luminescent material and capable of switching an image direction vertically to horizontally without a frame memory additionally provided. The light emitting device of the invention comprises in each pixel first to fourth transistors, a light emitting element, and a signal line. The first transistor and the second transistor control the connection between the signal line and a gate of the third transistor, the fourth transistor controls a current value supplied to the light emitting element, and the third transistor selects whether the current is supplied to the light emitting element or not. Further, the first transistor and the second transistor are switched separately.

    摘要翻译: 一种发光装置,其能够抑制由于电致发光材料的劣化导致的发光元件的亮度或亮度不均匀性的下降,并能够在没有帧存储器的情况下垂直地水平切换图像方向。 本发明的发光器件在每个像素中包括第一至第四晶体管,发光元件和信号线。 第一晶体管和第二晶体管控制信号线与第三晶体管的栅极之间的连接,第四晶体管控制提供给发光元件的电流值,第三晶体管选择电流是否被提供给发光 元素或不。 此外,第一晶体管和第二晶体管分开切换。

    Display device
    22.
    发明授权
    Display device 有权
    显示设备

    公开(公告)号:US08674908B2

    公开(公告)日:2014-03-18

    申请号:US13413687

    申请日:2012-03-07

    IPC分类号: G09G3/30

    CPC分类号: H01L27/3276 H01L27/12

    摘要: A display device with high-definition, in which display unevenness due to a voltage drop in a wiring or display unevenness due to a variation in characteristics of TFTs are suppressed. The display device of the invention comprises a first wiring for transmitting a video signal and a second wiring for supplying a current to a light emitting element. The first wiring and the second wiring extend parallel to each other, and are formed so as to overlap with each other at least partly with an insulating layer interposed therebetween.

    摘要翻译: 具有高清晰度的显示装置,其中由于TFT的特性变化引起的布线中的电压降或显示不均匀性引起的显示不均匀性被抑制。 本发明的显示装置包括用于传输视频信号的第一布线和用于向发光元件提供电流的第二布线。 第一布线和第二布线彼此平行地延伸,并且形成为至少部分地彼此重叠,并且隔着绝缘层。

    Light emitting display device with reverse biasing circuit
    26.
    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

    IPC分类号: G09G3/30

    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, semiconductor device, and electronic device
    27.
    发明授权
    Display device, semiconductor device, and electronic device 有权
    显示装置,半导体装置和电子装置

    公开(公告)号:US07589698B2

    公开(公告)日:2009-09-15

    申请号:US10801542

    申请日:2004-03-17

    IPC分类号: G09G3/30

    CPC分类号: H01L29/78696 H01L27/1296

    摘要: When an electrical characteristic of the TFT varies, display unevenness such as brightness unevenness or gradation unevenness is occurred in a display image. According to the present invention, a display device in which variation of an electrical characteristic of a TFT is reduced, and display unevenness is reduced is provided. To obtain the display device, the fluctuation ratio of ON current value in a saturation region of adjacent TFTs is set to be equal to or less than ±12% in a TFT array substrate in which a plurality of TFTs are arranged.

    摘要翻译: 当TFT的电特性变化时,在显示图像中发生诸如亮度不均匀或灰度不匀的显示不均匀。 根据本发明,提供了一种其中TFT的电特性的变化减小并且显示不均匀性减小的显示装置。 为了获得显示装置,在布置多个TFT的TFT阵列基板中,将相邻TFT的饱和区域中的导通电流值的波动比设定为±12%以下。

    Display Device and Electronic Device
    28.
    发明申请
    Display Device and Electronic Device 有权
    显示设备和电子设备

    公开(公告)号:US20090174333A1

    公开(公告)日:2009-07-09

    申请号:US12348574

    申请日:2009-01-05

    IPC分类号: H05B37/02

    摘要: A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1:L2/W2=1:2 to 1:10.

    摘要翻译: 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件,与发光元件串联连接的驱动晶体管,监视发光元件,与监视发光元件串联连接的限幅晶体管,用于供给 到监视发光元件的恒定电流,以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端,并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L1和沟道宽度W1以及限制晶体管的沟道长度L2和沟道宽度W2满足L1 / W1:L2 / W2 = 1:2至1:10。

    Display device and electronic device
    29.
    发明授权
    Display device and electronic device 有权
    显示设备和电子设备

    公开(公告)号:US07482629B2

    公开(公告)日:2009-01-27

    申请号:US11123209

    申请日:2005-05-06

    IPC分类号: H01L29/04

    摘要: A display device where the influence of variations in current of the light emitting element due to changes in ambient temperature and changes with time can be suppressed. The display device of the invention has a light emitting element, a driving transistor connected in series to the light emitting element, a monitoring light emitting element, a limiter transistor connected in series to the monitoring light emitting element, a constant current source for supplying a constant current to the monitoring light emitting element, and a circuit for outputting a potential equal to an inputted potential. A first electrode of the light emitting element is connected to an output terminal of the circuit through the driving transistor, and a first electrode of the monitoring light emitting element is connected to an input terminal of the circuit through the limiter transistor. The channel length L1 and the channel width W1 of the driving transistor, and the channel length L2 and the channel width W2 of the limiter transistor satisfy L1/W1: L2/W2=1:2 to 1:10.

    摘要翻译: 可以抑制由于环境温度的变化而随着时间的变化而影响发光元件的电流的变化的显示装置。 本发明的显示装置具有发光元件,与发光元件串联连接的驱动晶体管,监视发光元件,与监视发光元件串联连接的限幅晶体管,用于供给 到监视发光元件的恒定电流,以及用于输出等于输入电位的电位的电路。 发光元件的第一电极通过驱动晶体管连接到电路的输出端,并且监控发光元件的第一电极通过限幅晶体管连接到电路的输入端。 驱动晶体管的沟道长度L1和沟道宽度W1以及限制晶体管的沟道长度L2和沟道宽度W2满足L1 / W1:L2 / W2 = 1:2至1:10。