Substrate, substrate manufacturing method, touch screen, and display device

Abstract

The invention discloses a substrate, a substrate manufacturing method, a touch screen, and a display device. The substrate comprises a substrate body and an anti-reflection film arranged on the substrate body. The anti-reflection film consists of a first compact homogeneous layer, a nano porous layer and the second compact homogeneous layer; and all layers of the anti-reflection film employ SiO2 materials. When light passes through the nano porous layer, the light is reflected by multiple times and then is focused and transmitted, thereby achieving an anti-reflection objective. Because of the first compact homogeneous layer, the deposition efficiency and the binding force of the nano porous layer are enhanced and shedding of the nano porous layer during the high-temperature drying process can be avoided. With the second compact homogeneous layer, a phenomenon that cover plate glass fogging is increased due to moisture and dust absorption on the surface of the nano porous layer can be prevented. Meanwhile, with the anti-reflection film, thicknesses of all layers are adjusted due to different refractive indexes of all layers to carry out optical matching, so that an effect of shadow elimination is realized.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a substrate, a manufacturing method of the substrate, a touch screen and a display device. Background technique [0002] In order to improve the picture quality of smart display products such as mobile phones and tablets, functional films or coatings are usually attached to the surface of the cover glass to achieve the corresponding purpose. When the external ambient light is strong enough, it will often reflect the surrounding objects on the display screen, thereby affecting the display screen and causing a decrease in display quality. For this reason, anti-reflection processing is required. In addition, for touch screens such as On-Cell, ITOPattern is easily perceived by users in bright environments and reduces visibility, so it is necessary to coat the cover glass with an anti-shadowing layer. [0003] The anti-reflection effect of the glass surface in the visible light rang...

AI Technical Summary

Problems solved by technology

The base material used in the former is usually PET, but this is not conducive to the thinning of the product. At the same time, because the PET base material needs to go through a high temperature when it is hardened, during the high temperature treatment, the surface molecular structure of the base material is uneven, resulting in scattering. This causes rainbow patterns; the latter usually increases the haze of the glass surface and affects the clarity of the display screen

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