Patent ID: 7586531

Claim:
An amplification type solid-state image pickup device comprising: a pixel section having a photoelectric conversion element, a transfer transistor for transferring signal charge derived from the photoelectric conversion element, and an amplification device for amplifying signal charge transferred to a charge detection part by the transfer transistor; and a control unit for iterating first control and second control a plurality of times during a charge storage operation for storing the signal charge into the photoelectric conversion element, the first control being to control a gate voltage of the transfer transistor to a first gate voltage and the second control being to control the gate voltage of the transfer transistor to a second gate voltage which makes the signal charge less moveable to the charge detection part than the first gate voltage, wherein: the control unit, in a first period, controls the gate of the transfer transistor to a high impedance state and, in a second period within the first period, performs the second control by changing a potential of the charge detection part to a potential of a direction identical to a direction of a change from the first gate voltage to the second gate voltage.