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    • 55. 发明授权
    • Method for driving light-emitting device
    • 驱动发光装置的方法
    • US09035852B2
    • 2015-05-19
    • US13466613
    • 2012-05-08
    • Jun KoyamaHiroyuki Miyake
    • Jun KoyamaHiroyuki Miyake
    • G09G3/30G09G3/32
    • G09G3/30G09G3/3233G09G5/18G09G2300/0861
    • A method for driving a light-emitting device comprises steps of: supplying a first potential to a drain of a transistor and a second potential being lower than the first potential to a cathode of a light-emitting element; supplying a third potential which is lower than a potential obtained by adding the threshold voltage of the transistor, the threshold voltage of the light-emitting element, and the second potential to a gate electrode of the transistor, and a fourth potential being lower than a potential obtained by subtracting the threshold voltage of the transistor from the third potential to the source of the transistor; stopping supply of the fourth potential to the source of the transistor; and supplying a potential of an image signal to the gate electrode of the transistor.
    • 一种用于驱动发光器件的方法,包括以下步骤:向晶体管的漏极提供第一电位,将低于第一电位的第二电位提供给发光元件的阴极; 提供低于通过将晶体管的阈值电压,发光元件的阈值电压和第二电位加到晶体管的栅电极而获得的电位的第三电位,并且第四电位低于 通过从晶体管的第三电位减去晶体管的阈值电压而获得的电位; 停止向晶体管的源极供应第四电位; 以及向晶体管的栅电极提供图像信号的电位。
    • 58. 发明授权
    • Semiconductor display device
    • 半导体显示装置
    • US08294154B2
    • 2012-10-23
    • US13179824
    • 2011-07-11
    • Shunpei YamazakiJun KoyamaYoshifumi TanadaHiroyuki MiyakeKei Takahashi
    • Shunpei YamazakiJun KoyamaYoshifumi TanadaHiroyuki MiyakeKei Takahashi
    • H01L29/04
    • H01L27/3276H01L27/124H01L27/1266
    • A semiconductor display device using a light-emitting element, which can suppress luminance unevenness among pixels due to the potential drop of a wiring, is provided. Power supply lines to which a power supply potential is supplied are electrically connected to each other in a display region where a plurality of pixels are arranged. Further, an interlayer insulating film is formed over a wiring (an auxiliary power supply line) for electrically connecting the power supply lines to each other in the display region and a gate electrode of a transistor included in a pixel; and the power supply lines are formed over the interlayer insulating film which is formed over the auxiliary power supply line and the gate electrode. Furthermore, a wiring (an auxiliary wiring) formed over the interlayer insulating film is electrically or directly connected to the auxiliary power supply line.
    • 提供一种使用能够抑制由于布线的电位下降引起的像素之间的亮度不均匀的发光元件的半导体显示装置。 供给电源电位的电源线在布置有多个像素的显示区域中彼此电连接。 此外,在用于将显示区域中的电源线彼此电连接并且包括在像素中的晶体管的栅电极的布线(辅助电源线)上形成层间绝缘膜; 并且在辅助电源线和栅电极之间形成的层间绝缘膜上形成电源线。 此外,形成在层间绝缘膜上的布线(辅助布线)与辅助电源线电连接或直接连接。