| 摘要 |
A switch apparatus includes multiple operation switches and a display controller. Each of the operation switches has a display unit constructed of electronic paper that can rewrite a display image in a condition of being supplied with electric power and retain a rewritten display image after electric power supply is terminated. The display controller performs a display image rewriting processing that permits electric power supply to a target display unit, instructs the target display unit to rewrite a display image, and terminates electric power supply to the target display unit after instructing the target display unit to rewrite the display image. The display controller performs the display image rewriting processing successively to any of the display units whose display image is to be rewritten. |
