Transparent projection film

Abstract

A transparent projection film comprises a transparent base material layer and a lens layer, wherein the lens layer is compounded on the base material layer and comprises a plurality of prism units. The plurality of prism units are integrally formed or integrally connected, and hollow grooves are formed between the prism units; and each prism unit comprises a first side face, a second side face anda top face, wherein the top face is located between the first side face and the second side face and opposite to the base material layer. The transparent projection film mainly comprises the base material layer and the lens layer. When the surface of each prism unit is frosted, the transparent projection film can be used as a rear projection screen; and when a reflecting layer is arranged on thesurface of the prism unit, the transparent projection film can be used as a front projection screen. Compared with the prior art, the transparent projection film is very simple in structure and very easy to process and implement, and can achieve a projection effect basically similar to that of an existing projection screen, so that the transparent projection film has very high industrial application value and very high practicability.

Description

【Technical field】 [0001] The invention relates to a projection screen, in particular to an easy-to-process transparent projection film. 【Background technique】 [0002] Projection screens are usually divided into front projection screens and rear projection screens. Among them, front-projection projection screens usually rely on the principle of reflection, while rear-projection projection screens rely on the principle of transmission. Existing projection screens have a variety of structures, which usually include at least a multi-layer structure such as a substrate layer, a structural layer, and an imaging layer. What's more, there are more subtle and complex structures inside the projection screen; these subtle and complex The structure is theoretically set up to improve the projection effect. However, the applicant has found in long-term theoretical research and production practice that the actual improvement of projection effect of such complex projection screens is lim...

AI Technical Summary

Problems solved by technology

However, the applicant has found in long-term theoretical research and production practice that the actual improvement of projection effect of such complex projection screens is limited, but the processing technology is greatly improved due to the complexity of the structure, which makes it difficult to process and produce, thus making Such projection screens with complex structures and theoretically improved projection effects often only stay in the theoretical stage and cannot be mass-produced industrially.

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