Screen

Abstract

A screen (100) is provided with a retroreflective layer (110) comprised of a front surface (112) and a rear surface (114) on which a corner cube array is arranged; a low refractive index layer (120) made of a material that has a lower refractive index than that of the retroreflective layer (110); and a light absorptive layer (130) that absorbs at least a part of light that is incident on the retroreflective layer (110) from the front surface (112) of the retroreflective layer (110) and is projected from the rear surface (114) to the low refractive index layer (120). In a certain embodiment, at least a part of the light absorptive layer (130) is provided opposite to the corner cube array of the retroreflective layer (110) through the low refractive index layer (120).

Description

technical field The present invention relates to screens for use with projectors. Background technique A projection system uses a small projector (projector) to display a large-screen image on a screen. Therefore, projection systems are widely used in presentations such as movie theaters and home theater movie audiovisuals and conferences. The projector emits high-intensity projected light during bright display and low-intensity projected light during dark display. In a front projection type projection system that can be used in a narrow space more easily than a rear projection type, a screen that diffuses and reflects incident light is generally used. Since the screen diffusely reflects the projected light from the projector, more observers can observe the image. However, since the screen performing diffuse reflection also diffusely reflects ambient light other than projected light, when the surroundings of the screen are bright, the screen appears bright regardless of ...

AI Technical Summary

Problems solved by technology

However, in practice, it is difficult to manufacture a cube-corner reflector array with a small pitch (for example, below 100 μm) into an ideal shape

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