| 摘要 |
The invention is intended to provide a highly integrated solid-state image pickup device, in which the number of transfer electrodes of a horizontal shift register is reduced, and a plurality of vertical shifter registers are arranged with a reduced pitch therebetween. Output-control gate electrodes are disposed at an output end of the vertical shift registers. These output-control gate electrodes are operated independently from vertical transfer gate electrodes, and temporarily reserve information charges. Horizontal transfer gate electrodes corresponding to the vertical shift registers on odd-numbered columns are turned on, so signals charges in these vertical shift registers are read into a horizontal shift register. During horizontal transfer of these information charges, information charges of vertical shift registers on even-numbered columns are reserved, for half of a horizontal scanning period, in output ends of the vertical shift registers by the output-control gate electrodes. Thereafter, the information charges in the vertical shift registers on the even-numbered columns are read into the horizontal shift register, and are horizontally transferred. Since one horizontal transfer operation requires half of the pixels per row, the horizontal shift regiter includes two transfer electrodes for each vertical shift register.
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