INTERNAL ILLUMINATION TYPE SIGN DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an internal illumination type sign device capable of improving visibility.SOLUTION: An internal illumination type sign device comprises a sign panel 5, and an illumination part for illuminating the sign panel 5 from the rear. The sign panel 5 comprises: a prism layer 22; an air layer 23 disposed on an interface in a rear side of the prism layer 22; a light transmissive first colored display layer 11 disposed on a front side of the prism layer 22, and having a predetermined shape; and a light transmissive second colored display layer 41 disposed on a rear side of the air layer 23, and having a shape identical to the first colored display layer 11. When a front surface of the sign panel 5 is viewed from the front, the second colored display layer 41 is disposed on a position overlapping with the first colored display layer 11.