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    • 79. 发明授权
    • Flat panel display with thin film transistor
    • 带薄膜晶体管的平板显示器
    • US07009207B2
    • 2006-03-07
    • US10989643
    • 2004-11-17
    • Jae-Bon KooJi-Yong ParkUl-Ho LeeJin-Soo KimJin-Woung JungChang-Gyu Lee
    • Jae-Bon KooJi-Yong ParkUl-Ho LeeJin-Soo KimJin-Woung JungChang-Gyu Lee
    • H01L29/04
    • H01L29/78696H01L27/1285H01L27/1296H01L29/04H01L29/7866
    • A flat panel display capable of lowering an on-current of a driving thin film transistor (TFT), maintaining high switching properties of a switching TFT, maintaining uniform brightness using the driving TFT, and maintaining a life span of a light emitting device while the same voltages are applied to the switching TFT and the driving TFT without changing a size of an active layer. The flat panel display includes a light emitting device, a switching thin film transistor including a semiconductor active layer having a channel area for transferring a data signal to the light emitting device, and a driving thin film transistor including a semiconductor active layer having a channel area for driving the light emitting device. A predetermined amount of current flows through the light emitting device according to the data signal. The channel area of the switching thin film transistor has crystal grains with at least one of different sized or different shaped crystal grains than the crystal grains in the channel area of the driving thin film transistor.
    • 一种平板显示器,其能够降低驱动薄膜晶体管(TFT)的导通电流,保持开关TFT的高开关特性,使用驱动TFT保持均匀的亮度,并且保持发光器件的寿命,同时 在不改变有源层的尺寸的情况下,向开关TFT和驱动TFT施加相同的电压。 平板显示器包括发光器件,包括具有用于将数据信号传输到发光器件的沟道区域的半导体有源层的开关薄膜晶体管,以及包括具有沟道面积的半导体有源层的驱动薄膜晶体管 用于驱动发光装置。 预定量的电流根据数据信号流过发光器件。 开关薄膜晶体管的沟道区域具有与驱动薄膜晶体管的沟道区域中的晶粒不同尺寸或不同形状的晶粒中的至少一种的晶粒。