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Proceedings Paper

Reflection-mode diffraction and matrix displays
Author(s): Brian P. Dehmlow; Kim A. Brostad
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Paper Abstract

Flat panel displays can exhibit undesirable visual effects previously unseen with other display devices. One such effect is the presence of bright bands, or multiple images, surrounding the mirror image of a small, intense light source, like the sun. These bands and multiple images have been identified as diffraction patterns caused by the display pixels. With some displays, the diffraction patterns are obvious, while others exhibit minimal diffraction. The appearance of a pattern varies considerably between display designs, while remaining consistent between displays of similar design and construction. Specific display design features and materials are responsible for many pattern characteristics. If the pattern is very bright, information presented by the display may be obscured. This presents obvious problems when the display must be read accurately and quickly, as in avionics or vehicle applications. In order to use flat panel displays effectively in these environments, a means must be found to control or eliminate the bands. The purpose of this paper is to present an overview of the characteristics, causes, measurements, and strategies for prevention of diffraction bands on display devices.

Paper Details

Date Published: 14 September 1998
PDF: 8 pages
Proc. SPIE 3363, Cockpit Displays V: Displays for Defense Applications, (14 September 1998); doi: 10.1117/12.321777
Show Author Affiliations
Brian P. Dehmlow, Rockwell Collins (United States)
Kim A. Brostad, Rockwell Collins (United States)

Published in SPIE Proceedings Vol. 3363:
Cockpit Displays V: Displays for Defense Applications
Darrel G. Hopper, Editor(s)

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