Composite local hidden grating display laser film and printed matter

Abstract

This invention relates to the field of laser film technology, specifically to a composite partially hidden grating imaging laser film and its substrate. The composite partially hidden grating imaging laser film comprises a surface carrier layer, a first adhesion layer, a first connecting layer, a second connecting layer, a second adhesive layer, and a bottom carrier layer, which are sequentially stacked and bonded together. The first connecting layer includes an imaging pattern area and a hidden pattern area. The hidden pattern area has a first pattern formed by a concave-convex structure. The second connecting layer is disposed corresponding to the hidden pattern area and has a second pattern formed by a concave-convex structure. The first and second patterns are interlocked to form a flat area. The imaging pattern area has a third pattern that can be imaged even when the first and second patterns are not separated. The adhesive force between the first adhesion layer and the surface carrier layer, and the first connecting layer, is greater than the adhesive force between the first and second connecting layers.

Images