1982-02-01

The Visual Recognition of Vacuum Fluorescent Displays Under Sunlight Conditions 820013

The visual recognition of self-luminous displays in the automobile instrument panel under direct sunlight conditions is a major design criteria. The user-display interface requires the designer to consider factors of visibility, legibility, reading fatigue and styling. All factors are important, but under direct sunlight conditions, visibility has to take the highest priority and is the most important design factor.
The object of this paper is to delineate visibility parameters by analyzing the results of experiments designed to determine the minimum brightness levels and type of filtering required to obtain visual recognition of vacuum fluorescent displays under the sunlight conditions.

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