POSTER WITH INDICATOR WHICH AUTOMATICALLY OPERATES

摘要

PROBLEM TO BE SOLVED: To significantly increase the appealing effect of a poster. SOLUTION: The poster is provided with a hole for an indicator formed in a part where a light emitting diode blinks as the indicator in the drawing of an ion toothbrush or the like and with a hole for a light sensor. The indicator and the functioning part for the light sensor in an electronic circuit disposed on the back side of the poster are exposed through the respective holes so that the display blinks in a light environment and that blinking is automatically stopped when getting dark.