| 摘要 |
PURPOSE: To make it possible to perform a sure and proper information display with a high fail-safe property by providing a redundant display means respectively independently displaying the same fixed sign light emission pattern in parallel. CONSTITUTION: This device is provided with a redundant display means 12 having a redundant display function respectively independently displaying the same fixed sign light emission patten 18a in parallel. In a displayed example, since plural pieces of display elements 14a are arranged side by side on prescribed positions for displaying the fixed sign light emission pattern 18, and the display elements 14a are connected in series electrically, the fixed sign light emission pattern is generated by turning on the display elements 14a. Further, a display line drive means 16 performs the lighting control of the same fixed sign light emission pattern 18a. In such a manner, since respective display lines 14 are connected with the display lines drive means 16 in parallel respectively electrically, the redundant display means 12 realizes the redundant display function respectively independently displaying the same fixed sign light emission pattern 18 in parallel. |
