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Proceedings Paper

Flat projection display panel and its near critical angle AR coating
Author(s): Jiang Jian Zhong; Adrian R. L. Travis; Frank P. Payne; John R. Moore
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Paper Abstract

It has recently been shown that a tapered slab glass waveguide (wedge) can be used to make a flat panel display by projecting a video image into the thick edge of the wedge1. In this paper, we present the equations that relate the incident angle to the position where the ray emerges from the wedge. In the analysis, skew rays are also considered. We also present the design and experimental results of an anti-reflection coating that increases the brightness and reduces the blur of the wedge. With the coating, the transmittance of the interface rises from 0 (TIR) to 99% for a 0.35 degree change in incident angle for S-polarised monochromatic light. Without the coating, the transmittance falls below 50%. We also present a chromatic design intended to work with S-polarised rays from an arc lamp.

Paper Details

Date Published: 26 April 2002
PDF: 10 pages
Proc. SPIE 4657, Projection Displays VIII, (26 April 2002); doi: 10.1117/12.463784
Show Author Affiliations
Jiang Jian Zhong, Cambridge Univ. (United Kingdom)
Adrian R. L. Travis, Cambridge Univ. (United Kingdom)
Frank P. Payne, Nortel Labs. (United Kingdom)
John R. Moore, Cambridge 3D Display, Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 4657:
Projection Displays VIII
Ming Hsien Wu, Editor(s)

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