Reflective projection screen, transmissive projection screen and projection system

Abstract

Disclosed are a reflective projection screen, a transmissive projection screen and a projection system. The reflective projection screen includes a protective layer, a color deviation correction layerand a reflective layer, A color deviation correction layer is located between the protective layer and the reflective layer, the color deviation correction layer includes an excitation region filledwith excitation particles, the excitation region covers at least an edge region of the reflective projection screen, under the excitation of an external light source, emitting the color light needed to correct the color deviation of the reflective projection screen, External excitation light enters the protective layer, enters the color deviation correction layer after passing through the protective layer, excitation particles in the color deviation correction layer emit excellent light under the excitation of external excitation light, and enters the reflective layer, the light reflected by the reflective layer excites excitation particles in the color deviation correction layer to emit color light again, and the color light enters the human eyes after passing through the protective layer. The reflective projection screen improves the uniformity of the screen chromaticity.

Description

technical field [0001] The invention relates to the field of projection display, in particular to a reflective projection screen, a transmissive projection screen and a projection system. Background technique [0002] In recent years, laser TVs have developed rapidly. In order to meet the viewing effect of users in different lighting environments, laser TVs are equipped with dedicated screens. The purpose of configuring the screens is to achieve better contrast even in relatively bright lighting environments. , so as to obtain a better viewing effect. Generally, television projection screens include reflective projection screens and transmissive projection screens. [0003] For reflective projection screens, the most critical component is the Fresnel prism surface, which can reflect effective light to the human eye through the reflection of the Fresnel prism surface. The reflective projection screen usually cooperates with the laser projection device to display images, and...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of uneven chromaticity of the screen in the related art, the present invention provides a reflective projection screen, a transmissive projection screen and a projection system

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