| 摘要 |
<p>PROBLEM TO BE SOLVED: To suppress radiation noise by turning an image signal transmission method to a display device to optical signal communication and not using electric signals. SOLUTION: Image signals 16 outputted by a processor 11 are inputted by a light emitting element 3 as the electric signals and the light emitting element 3 converts the electric signals to optical signals 17 and emits light. The light receiving element 4 of the display device receives the optical signals 17 emitted by the light emitting element 3 and re-converts the optical signals to the electric signals. The converted image signals 18 are amplified by an amplifier 12 and an LCD is displayed in the processor 19. Also, for the opening/closing angle of the display device, in order to communicate the optical signals 17 in a range capable of visually confirming the contents of a display part, a concave lens is attached and an opening part is worked as well. However, the cut end of the opening part viewed from a front surface is made vertical so as not to interfere with an adjacent light receiving element. Also, a light emitting angle can be widened by attaching the plural light emitting elements in the direction of opening and closing the display device. By taking the structure, the electric signals are not used for the transmission of the image signals from a main body to the display device.</p> |
