| 摘要 |
<p>PURPOSE:To form a picture input part and an output part integrally by supplying two types of signals having different time widths to electrodes installed on both surfaces of a recording medium where a substance having a photoelectric effect characteristic is sealed between flat glasses. CONSTITUTION:When a voltage necessary for changing the molecule orientation of a liquid crystal having the electric field optical effect characteristic is impressed on the electrodes 2 and 3, the color of the liquid crystal 10 of the part held by the electrodes 2 and 3 changes emulsive, and functions as picture information. When an input detecting signal which does not cause the molecule orientation to change because of a short time width is impressed on the electrodes 2 and 3, rotary magnetic fields corresponding to said impression are generated in the vicinity of the electrodes. Here, when a sensor embedded by the substance having the electromagnetic induction effect characteristic approaches the electrodes, detection voltages corresponding to the rotary magnetic fields are outputted from the sensor 7. When the outputs are sequentially compared in synchronizing with the input detecting signal impressed on the electrodes 2 and 3, the intersection between the electrodes 2 and 3 can be sensed.</p> |
