Solid-state imaging device.

摘要

A solid-state imaging device wherein a MOS sensor with a matrix of photodiodes (1) and vertical switching transistors (2) is employed for a photosensor part, a charge transfer device (CTD) shift register (42A, 42B) is employed for a read-out circuit, first and second transfer gates (44A, 44B, 45A, 45B) are connected between vertical signal output lines (4) and the CTD, and a reset gate (46A, 46B) is connected between a junction of the first and second transfer gates and a reset voltage line (BLDA, BLDB). A method is adopted in which signal outputs of a plurality of rows are transferred to the CTD in a horizontal blanking period, and signals of a plurality of rows are simultaneously read out in a horizontal scanning period. Bias charges are introduced into the CTD at an input (41A, 41 B). At the signal transfer, the bias charges are dumped into the vertical signal output lines from the CTD, and mixed charges consisting of the bias charges and signal charges are transferred to the CTD. Thereafter, the signals are read out.