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    • 7. 发明申请
    • RADIATION IMAGE PICKUP APPARATUS AND METHOD OF DRIVING THE SAME
    • 辐射图像拾取装置及其驱动方法
    • US20110204246A1
    • 2011-08-25
    • US13027328
    • 2011-02-15
    • Tsutomu TanakaMakoto TakatokuYasuhiro YamadaRyoichi Ito
    • Tsutomu TanakaMakoto TakatokuYasuhiro YamadaRyoichi Ito
    • G01T1/24H01L29/04H01L27/146
    • H01L27/14676G01T1/2018H04N5/2251H04N5/374H04N5/378
    • A radiation image pickup apparatus allowed to restore a change in characteristics in a pixel transistors caused by radiation, and a method of driving the same are provided. The radiation image pickup apparatus includes: a pixel section including a plurality of unit pixels and generating an electrical signal based on incident radiation, each of the unit pixels including one or more pixel transistors and a photoelectric conversion element; a drive section for selectively driving the unit pixels of the pixel section; and a characteristic restoring section including a first constant current source for annealing and a selector switch for changing a current path from the unit pixels to the first constant current source at the time of non-measurement of the radiation, and allowing an annealing current to flow through the pixel transistor, thereby restoring characteristics of the pixel transistor.
    • 允许放射线摄像装置恢复由辐射引起的像素晶体管的特性变化,以及其驱动方法。 放射线图像拾取装置包括:像素部分,包括多个单位像素,并且基于入射辐射产生电信号,每个单位像素包括一个或多个像素晶体管和光电转换元件; 用于选择性地驱动像素部分的单位像素的驱动部分; 以及特征恢复部,其包括用于退火的第一恒流源和用于在不测量辐射时改变从单位像素到第一恒定电流源的电流路径的选择器开关,并且允许退火电流流动 通过像素晶体管,从而恢复像素晶体管的特性。