| 摘要 |
PURPOSE:To improve the number of bits of a vertical CCD shift register by commonly using part of electrodes and by electrically connecting the other electrodes to a different conductive wiring among the plural electrodes constituting a vertical CCD. CONSTITUTION:A vertical CCD 2 consists of four electrodes 2'-1, 2'-S, 2'-F, 2'-2, for one picture element and the electrodes 2'-1, 2'-2 are also used by wiring 13'-1, 13'-2, i.e., commonly used electrodes, and a clock pulse is applied to a wiring which is commonly connected to wirings 13''-1, 13''-2 corresponding to one ends of the wirings 13'-1, 13'-2. On the other hand, the exclusive electrodes 2'-S, 2'-F are commonly connected to conductive wirings 14-S, 14-F respectively and a clock pulse is applied to wirings 5'-2, 5'-3 commonly connected to one ends of the wirings 14-S, 14-F. Accordingly, the voltage '1', '0' of a clock are transmitted to a CCD electrode and the channel electric potentials of 2'-S, 2'-F can repeat '1', '0'. This improves the number of bits. |
