| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED electric light board that efficiently utilize light energy accumulated by a light accumulating layer while preventing strength of luminance in LED light emission from being reduced, without losing uniformity of luminance in an electric light plane or clearness of a light pattern.SOLUTION: The LED electric light board includes: a base supporting an LED body, a light accumulating layer provided at a front side of the base and drawing a desired symbol along a surface of the base, and many LED bodies installed in a scattered manner and supported in a part where at least the light accumulating layer of the base is formed, with its tip facing the front. When power fails, remaining light is emitted through the LED bodys by light energy accumulated by the light emitting layer. |
