| 摘要 |
PURPOSE:To obtain a light source for writing on regions of plural different wavelengths by dividing/disposing either one of the first and second groups of electrodes into plural combinations and connecting them commonly with the other group of electrodes. CONSTITUTION:A group of scanning electrodes 3 are divided/disposed into plural combinations and connected commonly with a group of signal electrodes 5. Namely, perpendiculars, which pass through respective cross points of both groups of electrodes and are at right angles to the group of scanning electrodes 3, are horizontally disposed 8 to 16 numbers/mm as a combination. The groups of scanning electrodes are formed in three combinations S1 to S3. Besides the group of signal electrodes 5 are connected commonly to these three combinations of the groups of the signal electrodes 5. Hence, a luminous part on regions of plural different wavelengths can be obtained and the device can be miniaturized. |
