The said:
Dear All,
I have a 17"CRT monitor with a screen resolution of 1024*768 pixels (Color
quality 16 bit). What is the best suitable frequency to choose for the
screen refresh rate? frequencies available are 60, 70, 72, 75 and 85.
Thanks.
The Undertaker
Try out the different frequncies and see which gives the best image. If you do
a lot of text work pay attention to the upper left quandrant.
IN GENERAL, monitors are tuned for the higher frequency range. The second highest
will proabably be the best. The marketing guys will always push the specs.
Engineer: "Look at this picture I get at 75Hz!"
Marketeer: "Can it go faster"
Engineer" "Well, it can do 85 but you there are some minor problems"
Marketeer: "Great! 85 it is!"
Engineer" "But, but ......"
At low frequencies flicker is the problem. To see your ficker threshold
use your peripheral vision. Turn your head away from the monitor by at
least 45 degrees or until you can barely see the monitor in your peripferal
vision. You will probably see flicker at 60. Only a very few people can
discern flicker at 75.
/dan