Photoelectric conversion apparatus, driving method and x-ray image pickup apparatus using the same
    9.
    发明授权
    Photoelectric conversion apparatus, driving method and x-ray image pickup apparatus using the same 失效
    光电转换装置,驱动方法和使用其的x射线摄像装置

    公开(公告)号:US06476867B1

    公开(公告)日:2002-11-05

    申请号:US08717628

    申请日:1996-09-23

    IPC分类号: H04N5335

    CPC分类号: H04N5/32

    摘要: In order to realize a photoelectric conversion apparatus capable of easily switching a mode requiring a wide dynamic range in obtaining a motion image and a mode requiring a reduction in noise in obtaining a still image, a mode switching means is used, when a refresh operation is performed for each photoelectric conversion element, to switch between a mode of setting the potential of one electrode of the photoelectric conversion element to be higher than the potential of the other electrode, and a mode of setting the potential of one electrode of the photoelectric conversion element to be lower than the potential of the other electrode, thereby arbitrarily changing the refresh voltage. With this operation, desired photoelectric conversion signals for a motion image and a still image can be obtained.

    摘要翻译: 为了实现能够容易地切换在获得运动图像时需要宽动态范围的模式的光电转换装置以及在获得静止图像时需要降低噪声的模式,则使用模式切换装置,当刷新操作为 对于每个光电转换元件执行,以在将光电转换元件的一个电极的电位设置为高于另一个电极的电位的模式之间切换,以及设置光电转换元件的一个电极的电位的模式 低于另一个电极的电位,从而任意地改变刷新电压。 通过该操作,可以获得用于运动图像和静止图像的期望的光电转换信号。

    Solid state image pickup apparatus and radiation image pickup apparatus
    10.
    发明授权
    Solid state image pickup apparatus and radiation image pickup apparatus 失效
    固态摄像装置和放射线摄像装置

    公开(公告)号:US07750422B2

    公开(公告)日:2010-07-06

    申请号:US11685044

    申请日:2007-03-12

    IPC分类号: H01L31/0224

    摘要: In a solid state image pickup apparatus with a photodetecting device and one or more thin film transistors connected to the photodetecting device formed in one pixel, a part of the photodetecting device is formed over at least a part of the thin film transistor, and the thin film transistor is constructed by a source electrode, a drain electrode, a first gate electrode, and a second gate electrode arranged on the side opposite to the first gate electrode with respect to the source electrode and the drain electrode, and the first gate electrode is connected to the second gate electrode every pixel, thereby, suppressing an adverse effect of the photodetecting device on the TFT, a leakage at turn-off TFT, variation in a threshold voltage of the TFT due to an external electric field, and accurately transferring photo carrier to a signal processing circuit.

    摘要翻译: 在具有与一个像素形成的受光器件连接的受光器件和一个以上的薄膜晶体管的固态摄像装置中,在所述薄膜晶体管的至少一部分上形成有所述受光器件的一部分, 薄膜晶体管由源电极,漏电极,第一栅电极和第二栅电极构成,第二栅电极相对于源电极和漏极布置在与第一栅电极相反的一侧,第一栅极为 连接到每个像素的第二栅电极,从而抑制光检测器件对TFT的不利影响,关断TFT处的泄漏,由于外部电场引起的TFT的阈值电压的变化,以及精确地传输照片 载波到信号处理电路。