With an increasing number of on-board visual display systems including navigation systems, it has become important to improve the visibility of on-board display screens in various visual environments, such as driving on a snow-covered road in fine weather. We propose a new display method based on the luminance adaptation, one of the human vision properties, associated with environmental luminance changes during driving. In this method, the luminance and saturation of the display screens are compensated according to the adaptation luminance of the driver in order to perceive the constant brightness of the display screens even in the different environmental luminance. Experimental results of subjective and objective evaluations indicate the effectiveness of the method compared with conventional display methods.
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