| 摘要 |
In order to provide a solid state image pickup device in which an offset voltage in an image signal from which a noise signal is removed is made to be low, when an image pickup operation is performed while the MOS transistor T1 is ON, after a signal phiVD with a value Vh is integrated by a capacitor C, the signal phiVD is Vm (Vm<Vh) and a pulse signal phiV is given so that an image signal is output. When dispersion of sensitivity is detected while the MOS transistor T1 is OFF, after the signal phiVD with the value Vh is integrated by the capacitor C, the signal phiVD is V1 (V1<Vm) and the pulse signal phiV is given so that a noise signal is output.
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