PROBLEM TO BE SOLVED: To provide an illumination signboard capable of displaying pieces of information displayed at a plurality of display units by turns.;SOLUTION: Disclosed is the internal lighting type illumination signboard having a first unit composed of a combination of a first surface light emission body 1 with a first display portion 3 and a first light source 2 on a front side and a second unit composed of a second surface light emission body 1' with a second display portion 3 and a second light source 2' on the back side of the first unit and a reflection sheet 4. As the surface light emission bodies 1 and 1', surface light emission bodies are preferably used which each have a stack structure comprising a base material layer made of light-transmissive resin containing a light scattering agent and a coating layer.;COPYRIGHT: (C)2008,JPO&INPIT
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