Measurement of visual fat igue for large-sized TVs in a home viewing environment

The authors report here the result of the evaluation experiments that measured visual fatigue for large-sized TVs in a home viewing environment using 42-inch and 65-inch PDP displays by physiological and psychological measurements. Our results indicate that the optimum viewing distance for minimizing visual fatigue lies between 165 and 220 cm, a semi-absolute distance, rather than a strict relative distance such as three times the screen height (3H). Moreover these results indicate that the viewing distance for less visual fatigue and a closer feeling of involvement might be in between the two distances.