The effect of video bandwith on the judgement of comfort, visual performance and eye movements using visual display units

The dependence of comfort judgement, visual performance and eye movements on video bandwidth is demonstrated. If the bandwidth of a visual display unit (VDU) is varied, the sensory attributes sharpness and brightness contrast of the characters may both change, as bandwidth limitation also causes a luminance contrast decrease . An attempt to separate the effects of these two psychologica l attributes is described .