Preparation method of transparent holographic film and transparent holographic film

Abstract

The invention discloses a preparation method of a transparent holographic film and the transparent holographic film, the preparation method comprises the following steps: processing a plurality of strip-shaped bulges on a mold roller, and arranging every two adjacent strip-shaped bulges at a preset distance in parallel to form a forming mold, wherein the cross section of each strip-shaped bulge istrapezoidal; uniformly coating UV glue on the first PET base film; transferring the strip-shaped protrusions to a first PET base film through adoption of a photocuring UV transfer printing method, sothat an optical structure layer is formed on the first PET base film; spraying UV transfer adhesive particles with a preset thickness on the optical structure layer to form a matte surface; uniformlycoating a pressure-sensitive adhesive with a preset thickness on the second PET base film to form a pressure-sensitive adhesive layer; and attaching the pressure-sensitive adhesive layer to the optical mechanism layer, so that a plurality of hollow trapezoidal structures are formed between the pressure-sensitive adhesive layer and the optical mechanism layer. The transparent holographic film is visually transparent in an unused state, and is high in projection brightness and clear in projection effect in a projection state.

Description

technical field [0001] The invention relates to the technical field of projection equipment, in particular to a method for preparing a transparent holographic film and the transparent holographic film. Background technique [0002] The current projection equipment transmits light to the screen through the projector for users to watch. It requires a larger venue and a darker environment to operate, so that users need to set up a special studio or projection room to obtain a better viewing experience. . At present, most users set up curtains directly in places such as office meeting rooms or project directly on the wall. When watching, they need to turn off the lights or watch directly, resulting in poor viewing experience for users. Contents of the invention [0003] The object of the present invention is to provide a transparent holographic film for a projector to solve the problem that the projector needs to use a curtain or a wall in the prior art, which causes the proj...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a transparent holographic film for projectors to solve the problem that projectors in the prior art need to use curtains or walls, resulting in large space occupation and inconvenient use of projectors

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