Determination of washout performance of various monochrome displays under simulated flight ambient and solar lighting conditionsThe aircraft cockpit ambient lighting simulation system (ACALSS) has been developed to study display readability and associated pilot/vehicle performance effects in a part-task simulator cockpit. In the study reported here, the ACALSS was used to determine the illumination levels at which subjects lose the ability to maintain aircraft states when using three display technologies as display media for primary flight displays: a standard monochrome EL (electroluminescent) flat-panel, a laboratory-class monochrome CRT, and an enhanced-brightness EL flat-panel. The multivariate statistical technique of modified profile analysis was used to test for performance differences between display devices as functions of illumination levels. The standard monochrome EL flat-panel display began to washout after the 2500 foot-candle level of illumination. The monochrome CRT began to washout after the 5500 foot-candle level of illumination. No performance decrements by increased illumination up to the 12,000 foot-candle level were found for the enhanced-brightness EL flat-panel display. What was not anticipated was that half the subjects would subjectively prefer the CRT over the enhanced-brightness EL, even though their performance errors would have indicated the opposite.
Document ID
19910070023
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Batson, Vernon M. (NASA Langley Research Center Hampton, VA, United States)
Robertson, James B. (NASA Langley Research Center Hampton, VA, United States)
Parrish, Russell V. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
Aircraft Instrumentation
Meeting Information
Meeting: IEEE/AIAA/NASA Digital Avionics Systems Conference