| 摘要 |
PROBLEM TO BE SOLVED: To provide a small size and simple structure solid-state image pickup device with memories which are provided in pixels and in which pixel information is stored to widen a dynamic range. SOLUTION: This solid-state image pickup device has memory units 11M which are provided in pixels 11P and in which first information is written in every charge accumulation period 13A. If the signal voltage of the pixel exceeds a reference voltage Vref before the charge accumulation period, second information is written in the memory unit 11M and the photodiode 711 of the pixel 11P is reset. If the first information is recorded in the memory unit 11M after the charge accumulation period 13A, the signal voltage is outputted as the signal of the pixel 11P. If the second information is recorded in the memory unit 11M, a signal obtained by adding the reference voltage Vref to the signal voltage is outputted as the signal of the pixel 11P.
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