Preparation method of anti-dazzle film

Abstract

The invention relates to a preparation method of an anti-dazzle film. The method comprises the following steps of processing an uneven anti-dazzle coating on a transparent film substrate triacetyl cellulose film TAC or on a polyethylene glycol terephthalate film PET, wherein the number of asperities on the surface is less than 80 per square milimeter; when the number of asperities on the surface of an anti-dazzle and anti-scratch film is less than 80 per square milimeter, refraction and scattering of light can be effectively restrained, and light transmittance can be improved; meanwhile, the light scattering occurred on the surface of the anti-dazzle and anti-scratch layer prevents the atomization and the whitening of a display screen, so that the transparency of the display screen is improved; the average roughness of the surface of the anti-dazzle and anti-scratch coating is 0.4-0.9UM, the roughness of the centre line is smaller than 0.2UM, the average diameter of the asperities is 3-7UM, the thickness of each asperity is 1-2 times of the diameter, and the atomization degree is 10-20%; when the thickness of the asperity is smaller than one time of the diameter, the asperity will be apparently higher than the surface of the transparent film, which enables the surface of the transparent film to be enhanced in the aspect that the anti-dazzle capability could be reduced when the thickness of the coating is more than two times of the diameter of the asperities, and thus causes the anti-dazzle surface effect.

Description

technical field [0001] The present invention relates to a method for preparing a protective film for display screens of mobile phones, notebook computers, and cash machines, in particular to a preparation method for an anti-glare film that can prevent external scenes from being reflected on the surface of display screens such as notebook computers and affect people's normal work . Background technique [0002] In order to prevent the external scene from being reflected on the surface of the liquid crystal display, the PET substrate is coated with organic or inorganic particles, resin binder and mixed hardening resin to form a concave-convex surface on the surface, thereby producing an anti-glare effect. In order to improve the anti-glare performance, it is necessary to increase the diameter of the concave-convex body or increase the number of concave-convex bodies, but if the diameter of the concave-convex body is increased or the number of concave-convex bodies is increased...

AI Technical Summary

Problems solved by technology

In order to improve the anti-glare performance, it is necessary to increase the diameter of the concave-convex body or increase the number of concave-convex bodies, but if the diameter of the concave-convex body is increased or the number of concave-convex bodies is increased, the display screen will increase with the haze or haze of the anti-glare layer. white screen, lowered display resolution, and worsened imaging contrast

If the surface haze of the anti-glare film is reduced, although the white screen phenomenon will be suppressed, the surface brightness will be greatly improved, which will affect the anti-glare effect

Some people have tried to increase the haze inside the anti-glare layer to solve the above problems, but when the haze is increased, the micromolecular particles inside the anti-glare layer and the outer resin will have different refractive indices, which will lead to the brightness of the display screen. and white screen phenomenon

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