Transparent ultraviolet-proof projection screen and manufacturing method thereof

Abstract

The invention relates to a projection screen, in particular to a transparent ultraviolet-proof projection screen and a manufacturing method thereof. The projection screen comprises an interlayer, bonding layers and supporting layers from inside to outside. The interlayer comprises titanium dioxide and inorganic salt nanometer particles. The bonding layers enable the interlayer and the supporting layers to be fixed together, and the supporting layers are used for projecting the interlayer and supporting the screen. The manufacturing method comprises the steps that first, different transparent media such as glass or hardened acrylic or polyestercarbonate are selected to be used as the supporting layers according to thickness requirements; second, mixed nanometer particles are added into raw materials composed of glass or resin materials in the so-gel process; third, the fusion methods of the supporting layers and the inter layer involve a high-temperature physical pressing method and an adhesive method. Nanometer particles are evenly distributed inside the transparent ultraviolet-protection projection screen, so that the transparent ultraviolet-protection projection screen is high in transparency and high in definition. Under the condition of photo-permeability, the transparent ultraviolet-protection projection screen can absorb ultraviolet rays and catalyze indoor harmful substances to decompose, and compared with a projection screen of the same quality, has the advantages of being simple in production technology, low in cost and the like.

Description

technical field [0001] The present invention relates to a projection screen, in particular to such a transparent anti-ultraviolet projection screen and a manufacturing method thereof. Background technique [0002] Currently, overhead projectors and slide projectors are widely used as a way for speakers to display material at conferences and the like. Also, video projectors and movie projectors using liquid crystals are widely used in general households. The projection method of these projectors involves modulating light output from a light source with a projection type liquid crystal surface or the like to form image light, and emitting the image light through an optical system such as a lens to be projected onto a screen. When the short-wave light emitted by the projector is close to the wavelength of ultraviolet light, defined as 10-400nm (nanometer), the ultraviolet light will diffusely reflect on the human body, thereby causing harm to the human body. [0003] Most of ...

AI Technical Summary

Problems solved by technology

When the short-wave light emitted by the projector is close to the wavelength of ultraviolet light, defined as 10-400nm (nanometer), the ultraviolet light will diffusely reflect on the human body, causing harm to the human body

[0003] Most of the base color of the traditional projection screen is white, and the 3D image reflected to the human eye is formed by integrating the misplaced projected image with the help of 3D glasses to form a three-dimensional effect. Not only is it inconvenient to wear glasses, but the imaging resolution is low, and the color of the signal itself cannot be real. Restoration, contrast and image depth of field are not enough, can not meet the standards of advertising media and other practical industries

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