| 摘要 |
<p>An information holding device comprising a pair of substrates (26, 27) whose opposing surfaces are formed with a plurality of electrodes (29) on one side and a plurality of electrodes (30) on the other side so that they may oppose and that opposing parts between the electrodes on the one side and those on the other side may form a matrix as a whole, a dielectric (31) which is held between said pair of substrates (26, 27). This device further comprises means (21) to change a capacitance of the dielectric (31) in any desired one of the opposing parts, means (20, 72, 79) to selectively apply a voltage varying with time to any desired one of said electrodes (29) on said one side, while to the remaining electrodes (29) a constant voltage is applied, and means (23) to detect principally a displacement current flowing to one selected electrode (30) on said other side and to the remaining electrodes (30) a constant voltage is applied on. <IMAGE></p> |
