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...

Examples

specific Embodiment approach 1

[0027] Specific Embodiment 1: A coating preparation method for anti-blue light 3D glass of this embodiment is carried out according to the following steps:

[0028] 1. Making 3D glass

[0029] Step A, cutting, cleaning and drying the entire two-dimensional flat glass;

[0030] Step B. Heating the glass treated in the previous step to the softening temperature, putting the blank heated to the softening temperature into a 3D precision mold for pressing and molding, so that a curved surface is formed on the blank, and a circular bend is formed around the blank of the cover plate. Folding of corners to form 3D glass;

[0031] 2. Anti-blue light coating

[0032] Step C, cleaning and drying the 3D glass before coating;

[0033] Step D, after drying, place in the vacuum chamber of the electron beam evaporation machine, when the vacuum value in the vacuum chamber is less than or equal to 2.0×10 -3 Pa, start the ion source to clean the substrate again and dry it;

[0034] Step E, ...

specific Embodiment approach 2

[0037]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the two-dimensional plane glass is made of aluminosilicate glass or lithium-aluminosilicate glass. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment is different from Embodiment 1 in that: the heating to softening temperature is heating to 540~650°C. Others are the same as in the first embodiment.

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...

Examples

specific Embodiment approach 1

[0027] Specific Embodiment 1: A coating preparation method for anti-blue light 3D glass of this embodiment is carried out according to the following steps:

[0028] 1. Making 3D glass

[0029] Step A, cutting, cleaning and drying the entire two-dimensional flat glass;

[0030] Step B. Heating the glass treated in the previous step to the softening temperature, putting the blank heated to the softening temperature into a 3D precision mold for pressing and molding, so that a curved surface is formed on the blank, and a circular bend is formed around the blank of the cover plate. Folding of corners to form 3D glass;

[0031] 2. Anti-blue light coating

[0032] Step C, cleaning and drying the 3D glass before coating;

[0033] Step D, after drying, place in the vacuum chamber of the electron beam evaporation machine, when the vacuum value in the vacuum chamber is less than or equal to 2.0×10 -3 Pa, start the ion source to clean the substrate again and dry it;

[0034] Step E, ...

specific Embodiment approach 2

[0037]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the two-dimensional plane glass is made of aluminosilicate glass or lithium-aluminosilicate glass. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0038] Embodiment 3: This embodiment is different from Embodiment 1 in that: the heating to softening temperature is heating to 540~650°C. Others are the same as in the first embodiment.