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Luminance Control of In-Vehicle Display Based on Visual Field Driving Environment (First Report)
Published October 03, 2012 by Society of Automotive Engineers of Japan in Japan
Visual field luminance determines the optimum display luminance necessary for adequate visibility. In this study, we developed a method that estimates the luminance level of a driver's visual field using an illuminance sensor and investigated its actual characteristics. We then simulated the visual field of a driver's seat environment under experimental conditions. In our experiments, test subjects evaluated the optimum display luminance of a car-navigation system under static conditions, with variations added to simulate time of day and weather. As a result, we obtained an equation that predicts the adequate display luminance level based on driver's visual field luminance level.