| 摘要 |
PROBLEM TO BE SOLVED: To provide an internally-illuminated standing signboard which has a thin advertisement display part preferable in appearance, which achieves the mitigation of poor handleability due to the heavy weight of the signboard itself, and which is convenient in terms of not requiring a power cord during the charge of a storage battery for supplying power to a light source.SOLUTION: An internally-illuminated standing signboard 2 includes a display 3 having a surface emitting body 5, and a battery storage part 4 in which a lithium ion battery 8 for an electric power-assisted bicycle is detachably stored. The surface emitting body 5 is formed of a unit made by covering a plurality of electrically-connected wide-angle emitting LED chips 6 arranged on a PET film (film-shaped base material) in a grid pattern (e.g. 37.5 mm spacing of vertical and horizontal) with a polyvinyl chloride film (transparent plastic film) from above. The lithium ion battery 8 is used as the power for a light source of the surface emitting body 5. |
