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Development of High Contrast Electroluminescent Techniques for Aircraft Displays

Report Number: AFFDL TR 66-6
Author: Peterson, Carlton J.
Author: Smith, Hugh A.
Corporate Author: Bunker-Ramo Corporation
Laboratory: Air Force Flight Dynamics Laboratory
Date of Publication: 1966-04
Pages: 38
Contract: AF 33(657)-8600
Project: 6190
Task: 619009
AD Number: AD0637460

This paper outlines the steps taken to develop a new display technology capable of meeting display requirements of future manned weapon systems. A description is made in the first part of this paper identifying the basic concept and resulting development of high-contrast electroluminescent (EL) displays both from an engineering and psychophysical standpoint. The problem of display legibility, quite often confused with display brightness, is also discussed with respect to its effect on the limitations of EL displays. Finally, information is presented identifying how this limitation was overcome and why such progress is considered to be an important contribution to the development of solid-state displays. The second part of this paper describes the human factors aspects of the high-contrast EL program. The inherent weakness of transilluminated displays, the variables related to readability, the effects of the anticipated upper limits of environmental lighting, and the study of one of the first high-contrast EL displays are discussed.

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