| 摘要 |
PROBLEM TO BE SOLVED: To provide a laminate which displays different under the irradiation conditions of visible light and ultraviolet rays, is enhanced in the luminescence efficiency of a fluorescence emitting display part, expresses a dark luminescent color and is excellent in design properties. SOLUTION: The laminate is irradiated with the ultraviolet rays from an ultraviolet source to emit light and a fluorescence emitting layer (A) showing the emission of fluorescence, an ultraviolet ray reflecting layer (B) being transparent or translucent when the ultraviolet reflectivity in the whole region of a wavelength region of 300-400 nm is 10% or above and a colored layer (C) are laminated from the side irradiated with ultraviolet rays of the laminate. COPYRIGHT: (C)2011,JPO&INPIT |
