|Document ID (ISN)||108660|
|ISSN - Serial title
||0169-8141 - International Journal of Industrial Ergonomics
|Convention or series no.
||Marmaras N., Nathanael D., Zarboutis N.
||The transition from CRT to LCD monitors: Effects on monitor placement and possible consequences in viewing distance and body postures
||July-Aug. 2008, Vol.38, No.7-8, p.584-592. Illus. 37 ref.
||This study investigates the effects of the transition from cathode ray tube (CRT) to liquid crystal displays (LCDs) with respect to viewing distance and workers' postures. The comparison between 148 workplaces equipped with CRT and 115 equipped with LCD monitors revealed that the latter are positioned closer to the rear side of desks, increasing the mean distance of the screen from the front edge of the desk by nearly 10cm. The above finding suggests that the mean effective viewing distance may have also increased by the same amount. The study also suggests that in LCD monitors, the increased viewing distance often exceeds the recommended angular height for comfortable reading while in a comfortable sitting posture. With the aid of a cybernetic model and the above empirical findings, an attempt is made to explain how the increase of the available effective space in front of the worker offered by LCD monitors may result in the adoption of adverse postures.
||visual tasks; work posture; man-computer interfaces; office work; ergonomics
||sitting posture; visual display terminals; comfort criteria; comfort assessment; anthropometry
||D - Periodical articles
|Country / State or Province||United Kingdom; Greece|
||Ergonomics and work organization
|Broad subject area(s)