| 摘要 |
PROBLEM TO BE SOLVED: To provide an illuminated display device for displaying the operating state of a system and a method for managing such a device in which the defects of a device based on conventional technology can be conquered by detecting the fault of a display and guaranteeing normal operation even when there is any fault. SOLUTION: In the illuminated display device for displaying the operating state of the system, this device is provided with at least one light 29 and a means for detecting the failure of this or these lights. Each light has (m) branches 31 in parallel each composed of (n) light emitting diodes 32 in series, and a means 33 is provided for selecting a branch. In such a case, (m) and (n) are integers such that m≥2 and n≥1. COPYRIGHT: (C)2003,JPO
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