Abstract
The picture quality of a liquid crystal display (LCD) significantly changes with the observation angle. One of factors involved is the color change of an image. This study aimed to clarify the influence of color reproduction range on picture quality. In the experiment, “saturation decrement ratio” was newly defined for each of the primary colors, which restricted the change in color reproduction range on a display. Picture quality was measured by subjective evaluation of images reproduced with different saturation decrement ratios. We found that picture quality decreased monotonically with decreasing color saturation. When the saturation of a primary color was independently decreased, the decrease in picture quality was largest for a decrease in the saturation of blue. Moreover, the decrease in picture quality was larger than that of blue if the color temperature was kept constant.
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