A kind of anti-reflection cover plate and preparation method thereof

Abstract

The invention discloses an anti-reflection cover plate and a preparation method thereof, comprising: S1. providing a substrate; S2. preparing an anti-reflection layer on the substrate, and the anti-reflection layer includes several alternately stacked high Refractive index metal oxide layer and several low refractive index metal oxide layers; wherein, the preparation method of the high refractive index metal oxide layer and low refractive index metal oxide layer is: (1) using magnetron sputtering to prepare metal thin film; (2) performing inductively coupled plasma ionization on the metal thin film in an oxygen environment to form a metal oxide layer, wherein the ICP power is 1-4000W, and the oxygen flow rate is 50-500 sccm. The core of the present invention is to prepare the metal thin film first, and then use the ion source to ionize to form a metal oxide layer. At the same time, by controlling the ICP power and oxygen flow rate, the extinction coefficient of the metal oxide layer is increased. While having anti-reflection effect, The transmittance of the cover plate is reduced, which has a shielding effect on the appearance defects of the cover plate and improves the yield rate.

Description

technical field [0001] The invention relates to the technical field of electronic product accessories, in particular to an anti-reflection cover plate and a preparation method thereof. Background technique [0002] With the continuous improvement of people's living standards, electronic products such as mobile phones, tablet computers, cameras, and notebook computers have gradually become popular. In the prior art, the above-mentioned electronic products generally include a cover plate for protecting the body of the electronic product or enhancing the appearance of the electronic product. [0003] In life, the glare caused by the reflection of strong outdoor light on the lens and other surfaces seriously interferes with the normal visual effect, and it is easy to cause eye discomfort and eye fatigue; for example, when we operate computers or mobile phones and some outdoor display devices, we often Because of the reflection of the scenery outside the display on the surface o...

AI Technical Summary

Problems solved by technology

However, the existing anti-reflection cover plate often increases the transmittance while reducing the reflectivity, which enlarges some appearance defects on the surface of the cover plate, making it easier to be observed by human eyes, so that the appearance defect increases, and the appearance Lower yield rate and higher product cost