FIELD: image forming devices.
SUBSTANCE: invention relates to a photoelectric conversion device and to an imaging system. Photoelectric conversion device according to the invention includes a pixel, which includes a photoelectric conversion unit, a reset transistor and an amplification transistor, which outputs a signal from the photoelectric conversion unit. Photoelectric conversion unit includes the first electrode, the second electrode, a photoelectric conversion layer and an insulating layer placed between the photoelectric conversion layer and the second electrode. Photoelectric conversion unit alternately performs accumulation and discharge operations in accordance with the voltage between the first electrode and the second electrode. Between two successive discharge operations of multiple discharge operations the reset operation, when the reset transistor resets voltage at the second electrode, is performed multiply.
EFFECT: invention provides improvement of the dynamic range.
20 cl, 21 dwg
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