A kind of anti-peep film manufacturing method

Abstract

A method for manufacturing an anti-peep film, comprising the steps of: A. using a grating device to partially block the light emitted by the ultraviolet light source, so that the ultraviolet light passing through the grating is a striped light with equidistant intervals; evenly coating the surface of the base material layer Distribute light to cure the black glue layer, and send it into the striped light formed by the grating device for curing; B. After curing, immerse the above-mentioned light-cured black glue layer in a solvent to wash off the uncured light-cured black glue to form a base material black plastic grating structure on the surface of the layer; C. coating light-cured white glue on the black plastic grating structure on the surface of the above-mentioned substrate layer, filling the gap of the black plastic grating structure and forming a white glue protective layer on the surface of the black plastic grating structure; D. in After the surface of the white glue protective layer is compounded with a protective layer, the white glue is cured by irradiating an ultraviolet light source. The invention uses the grating structure to prepare the striped parallel light source, and cures the black glue to prepare the louver structure of the anti-peep film, which has the characteristics of high speed, high precision, low implementation cost and good anti-peep effect of the product.

Description

technical field [0001] The invention relates to a method for manufacturing a privacy film. Background technique [0002] The privacy film is an optical film with a shutter grating structure. The grating structure is used to selectively block the light of the display to protect privacy and prevent other people around from peeping at the display content. At present, the industrial privacy film is produced by using a precision engraving coating stick to transfer the fine concave structure on the white glue layer, then coating the black glue, scraping off the excess black glue, and then compounding it with the protective layer. This solution is difficult to engrave on the coating stick, and the grating structure is easily damaged in the process of scraping off excess black glue, and the production cost is high. [0003] As described in Chinese invention patent CN103818074A, after engraving the transparent resin raised units first, then fill the voids with black substances. This...

AI Technical Summary

Problems solved by technology

This solution is difficult to engrave on the coating stick, and it is easy to damage the grating structure in the process of scraping off excess black glue, and the production cost is high

[0003] As described in Chinese invention patent CN103818074A, after engraving the raised units of transparent resin, and then filling the gaps with black matter, this solution is not only difficult to carve the raised units, but also difficult to fill the gaps when filling the black matter, and will cover the transparent The raised unit affects the light transmittance and reduces the use effect