JPS6446378A - Solid-state image-pick up device - Google Patents

Abstract

PURPOSE:To attain high sensitive signal detection and to satisfactorily suppress cross-talk between cells and to decrease a dark output by equipping a potential adjusting means to make a first main electrode the same in potential with a second main electrode of a non-selective SIT cell. CONSTITUTION:When a driving signal phiA is impressed in a reading selecting circuit 30, a transferring transistor goes to an electrically conductive condition. Next, a driving signal phiB is impressed at a time tA2, precharge transistors QB and QC are respectively energized and parasitic capacity CA of a column line LHA and accumulative capacity included to the reading selecting circuit 30 are precharged to a voltage VP. Parasitic capacity CB of a first row line LVA is precharged to the VP in the same way. By such a precharge to the parasitic capacity, a condition in which there is no potential difference is obtained between the drain and the source of an SIT cell QA. Thus, the signal detection with high sensitivity can be executed, the cross-talk between the cells is satisfactorily suppressed and the dark output can be decreased.