| 摘要 |
A projection screen including a polarized-light selective reflection layer having a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component, and a substrate for supporting the polarized-light selective reflection layer. The polarized-light selective reflection layer includes three partial selective reflection layers that are layered one over another, and each partial selective reflection layer has a cholesteric liquid crystalline structure that causes selective diffuse-reflection of a specific polarized-light component. Each partial selective reflection layer contains molecules of a liquid crystal made from an organic compound, and is formed as an organic film as a whole. In the polarized-light selective reflection layer, a partial selective reflection layer for selectively reflecting light in the blue (B) color wave range, a partial selective reflection layer for selectively reflecting light in the green (G) color wave range, and a partial selective reflection layer for selectively reflecting light in the red (R) color wave range are layered in this order, the firstly-mentioned partial selective reflection layer being on the observation side. Namely, the partial selective reflection layer for selectively reflecting light in the blue (B) color wave range is arranged as the outermost layer on the observation side.
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