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Proceedings Paper

Enhanced AMLCD and backlight for extended luminance range and sunlight readability
Author(s): Duane A. Grave; Scot Olson; Philip Brown
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Paper Abstract

As cockpit lighting systems have evolved which implement active matrix liquid crystal displays (AMLCD) into military aircraft, it has become obvious that an extremely large dimming range is necessary to accommodate low level night operation and high ambient sunlight conditions. This range may be as large a 0.03 FtL to 200 FtL (6667:1) over the display field of view. This is a much larger range than previously exhibited by typical hot cathode fluorescent lamps. Additionally, performance enhancements are necessary to achieve the high contrast required for sunlight operation in a military environment. These are also complicated by the requirements to start rapidly and operate reliably in environments of -54 degree(s)C to +71 degree(s)C. A significant research and development program has been dedicated to advance the backlight and display technology to achieve the desired performance. This paper will present the results of this effort. It includes data from the benchmarked start through several breadboarded backlight and display enhancements.

Paper Details

Date Published: 5 June 1995
PDF: 10 pages
Proc. SPIE 2462, Cockpit Displays II, (5 June 1995); doi: 10.1117/12.210970
Show Author Affiliations
Duane A. Grave, Rockwell, Collins Avionics & Communication Div. (United States)
Scot Olson, Rockwell, Collins Avionics & Communication Div. (United States)
Philip Brown, Rockwell, Collins Avionics & Communication Div. (United States)

Published in SPIE Proceedings Vol. 2462:
Cockpit Displays II
Darrel G. Hopper, Editor(s)

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