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Proceedings Paper

Development of a color 3D display visible to plural viewers at the same time without special glasses by using a ray-regenerating method
Author(s): Goro Hamagishi; Takahisa Ando; Masahiro Higashino; Atsuhiro Yamashita; Ken Mashitani; Masutaka Inoue; Shun-Ichi Kishimoto; Tetsuro Kobayashi
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Paper Abstract

We have newly developed a few kinds of new auto-stereoscopic 3D displays adopting a ray-regenerating method. The method is invented basically at Osaka University in 1997. We adopted this method with LCD. The display has a very simple construction. It consists of LC panel with a very large number of pixels and many small light sources positioned behind the LC panel. We have examined the following new technologies: 1) Optimum design of the optical system. 2) Suitable construction in order to realize very large number of pixels. 3) Highly bright back-light system with optical fiber array to compensate the low lighting efficiency. The 3D displays having wide viewing area and being visible for plural viewers were realized. But the cross-talk images appeared more than we expected. By changing the construction of this system to reduce the diffusing factors of generated rays, the cross-talk images are reduced dramatically. Within the limitation of the pixel numbers of LCD, it is desirable to increase the pinhole numbers to realize the realistic 3D image. This research formed a link in the chain of the national project by NEDO (New Energy and Industrial Technology Development Organization) in Japan.

Paper Details

Date Published: 23 May 2002
PDF: 10 pages
Proc. SPIE 4660, Stereoscopic Displays and Virtual Reality Systems IX, (23 May 2002); doi: 10.1117/12.468042
Show Author Affiliations
Goro Hamagishi, Sanyo Electric Co., Ltd. (Japan)
Takahisa Ando, Sanyo Electric Co., Ltd. (Japan)
Masahiro Higashino, Sanyo Electric Co., Ltd. (Japan)
Atsuhiro Yamashita, Sanyo Electric Co., Ltd. (Japan)
Ken Mashitani, Sanyo Electric Co., Ltd. (Japan)
Masutaka Inoue, Sanyo Electric Co., Ltd. (Japan)
Shun-Ichi Kishimoto, Sanyo Electric Co., Ltd. (Japan)
Tetsuro Kobayashi, Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 4660:
Stereoscopic Displays and Virtual Reality Systems IX
Mark T. Bolas; Andrew J. Woods; John O. Merritt; Stephen A. Benton; Mark T. Bolas, Editor(s)

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