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Proceedings Paper

High-definition projection screen based on multiple light scattering technique
Author(s): Hiromasa Suzuki; Takamitsu Okumura; Akihiro Tagaya; Eizaburo Higuchi; Yasuhiro Koike
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Paper Abstract

A novel rear projection screen (Blue Ocean screen, Nitto Jyushi Kogyo, Co., Ltd.) has been developed. Blue Ocean screen is a single polymer plate requiring no lens element. The projected image is formed on the screen surface by the multiple light scattering. An image light is multiply scattered and is converted into homogeneous light distribution efficiently due to the internal particles of micron order dispersed in the acrylic polymer matrix. An ambient light is reduced by the dye molecules doped in the polymer and the anti-reflective coating on the screen surface. The condition of the particles and the concentration of the dye molecules have been optimized by the ray tracing simulation program based on Mie scattering theory using a Monte Carlo method. The screen containing the particles of optimum condition exhibits the wide viewing angle, the well-controlled color balance, and the high sharpness level at the same time. The contrast level of the projected image in ambient light is improved by controlling the concentration of the dye molecules. This paper describes the optimization obtained theoretically and experimentally, and demonstrates the advantage of Blue Ocean screen.

Paper Details

Date Published: 28 May 2004
PDF: 8 pages
Proc. SPIE 5289, Liquid Crystal Materials, Devices, and Applications X and Projection Displays X, (28 May 2004); doi: 10.1117/12.526273
Show Author Affiliations
Hiromasa Suzuki, Keio Univ. (Japan)
Takamitsu Okumura, Keio Univ. (Japan)
Akihiro Tagaya, Keio Univ. (Japan)
Eizaburo Higuchi, Nitto Jushi Kogyo Co., Ltd. (Japan)
Yasuhiro Koike, Keio Univ. (Japan)


Published in SPIE Proceedings Vol. 5289:
Liquid Crystal Materials, Devices, and Applications X and Projection Displays X
Ming Hsien Wu; Liang-Chy Chien, Editor(s)

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