A solid-state imaging device comprises a plurality of hybrid pixels. The hybrid pixel comprises a photodiode, which has a charge storage region and a photoelectric conversion region, and a transparent electrode. The transparent electrode applies a voltage to the charge storage region to modulate a potential with respect to a charge. Thereby the width of the charge storage region is reduced to form an effective charge storage region. Unless potentially modulated, the hybrid pixel functions as a normal pixel. Upon the potential modulation, the hybrid pixel functions as a phase detection pixel, which selectively stores the charge generated in a part of the photoelectric conversion region.