| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal display device which is capable of displaying a pattern having a specific meaning while increasing flexibility in selection of colors, and which allows both a person having general color vision and a person having specific color vision to recognize the same pattern.SOLUTION: A basic light-emitting device 17a is distributed over a display area 11a to allow a person having general color vision to recognize a prescribed pattern displayed in the display area 11a as a signal. Further, an additional light-emitting device 17b is uniformly scattered over the display area 11a with an occupant area less than that of the basic light-emitting device 17a to prevent the inhibition of pattern recognition of a person having general color vision while a person having specific color vision can also recognize the prescribed pattern displayed in the display area 11a as a signal. |
