Ambient light absorption in rear projection screens
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Ambient light absorption in rear projection screens is crucial for enhancing image quality. Various inventions focus on this aspect. Xie Haosen et al. developed a rear projection apparatus with a scattering layer, diffusion layer, reflective layer, and light absorbing layer to increase visual angle and contrast ratio . Mei Yuhua introduced a projection screen with micro-convex strips containing light absorption surfaces and projection imaging layers to resist ambient light interference, resulting in clearer and higher contrast imaging . Saritem proposed a screen with a microlens array film and black ink stripes to guide ambient light to light-absorptive areas, significantly improving image contrast ratio without sacrificing viewing angle . Yang Dahai's inventions featured grating layers with ink layers for ambient light absorption and anti-dazzle layers to prevent interference, effectively improving projection picture quality and widening application range .
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| Papers (5) | Insight |
|---|---|
| The ambient light resistant projection screen utilizes a grating layer with printing ink to absorb ambient light, reducing interference and improving picture quality, making it suitable for wide popularization. | |
| The ambient-light resisting projection screen utilizes transverse ink layers in the grating layer to absorb ambient light, reducing interference and improving picture quality in rear projection screens. | |
| The paper focuses on ambient light rejection in front projection screens using a microlens array film with black ink stripes to absorb ambient light, enhancing image contrast without sacrificing viewing angle. | |
| The projection screen in the paper resists ambient light through a dark light absorption material, micro-convex strips with light absorption surfaces, and a projection imaging layer, enhancing picture clarity and contrast. | |
| The rear projection apparatus utilizes a reflective layer with a groove structure filled with light-absorption material to absorb ambient light, enhancing the screen's contrast ratio. |
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