Preparation method of blue-light-resistant 3D glass coating film

Abstract

The invention relates to a preparation method of a blue-light-resistant 3D glass coating film, and aims to solve the problem that blue light emitted from a screen of a mobile phone is harmful to human bodies. The preparation method comprises the following steps: manufacturing 3D glass; and depositing a blue-light-resistant film layer on the basis of the 3D glass. Harmful blue light and ultraviolet light as well as various rays harmful to human bodies are filtered effectively. The absorptivity to blue light with wavelength of 380-500 nm can reach 33% or above. The preparation method of the blue-light-resistant 3D glass coating film is applied to the field of preparation of 3D glass.

Description

technical field [0001] The invention relates to the field of glass coating, in particular to a coating preparation method for anti-blue light 3D glass. Background technique [0002] Currently used glass covers for electronic products include 2D, 2.5D and 3D glass. Among them, the 2D glass is flat glass, and the 2.5D glass screen has a flat area in the center, and the edge is curved on the basis of the flat glass. For 3D curved glass, both the middle and edge parts can be designed as curved arcs. The main technology of 2.5D glass is carved from the glass cover, and the 3D curved glass is mainly bent by a hot bending machine, which can achieve a higher bending arc. [0003] At present, the main processes of 3D glass production include: cutting, CNC, grinding and polishing, baking, coating, hot bending, etc. Among them, the hot bending process is the most critical, which restricts the yield rate. At present, domestic hot bending machines for the production of 3D curved glass...

AI Technical Summary

Problems solved by technology

The yield rate of 2.5D glass production is relatively high. Taking Triumph Technology as an example, according to the content of the announcement, the yield rate can reach 95%; while the yield rate of 3D glass is low, which is also one of the reasons for the current high price.

[0007] With the widespread application of 3D glass, some problems have also been exposed. For example, the "uncomfortable light" generated by the mobile phone screen continues to illuminate our eyes and cause visual system disorders. The light emitted by the mobile phone screen makes our eyes uncomfortable. Because these rays contain a large amount of high-energy short-wave blue light with irregular frequency, these short-wave blue light has energy that can penetrate our eyeball lens and reach the retina directly. The continuous irradiation of short-wave blue light on the retina will generate a large number of free radical ions, and these free radical ions will make the pigment of the retina The decline of epithelial cells will cause the photoreceptor cells to lack nutrients and cause visual impairment; these short-wave blue light is also the main cause of macular degeneration

At present, the method of filtering the blue light of the mobile phone screen is to paste a layer of protective film on the surface of the mobile phone screen. After the film is attached to the mobile phone screen, the light transmittance will often decrease. The film is prone to scratches and affects the visual effect. The anti-blue light effect is still not ideal

Most of the mobile phone screen cover is made of plexiglass (polymethacrylate). This plexiglass is easy to break, and its impact resistance is not ideal. Moreover, the existing coating has a reduced light-enhancing effect.