On 2010-07-13 14:50 , John Francis wrote:
Most of the LCD panels, though, seem to use fluorescent tubes as the illumination source. Presumably they will still be running at 60Hz?
fluorescent backlights for LCD displays run at a very high cycle rate to avoid flicker
The LED screens (illuminated by white LEDs, not fluorescent tubes) are stll leading-edge, and pretty expensive when you can find them. They're not available in anywhere as many sizes/resolutions, either.
assuming you mean LCD displays with LED backlights; some don't pulse the LEDs but others do pulse them to dim specific parts of the backlight and increase dynamic range of the display; however, as with fluorescent tubes, the pulsing is usually fast enough to avoid flicker
LED backlit displays are now fairly common -- i've seen 22" versions available in the mid-$200s and all of Apple's displays except the 30" are now LED-backlit; it's worth considering them for a few reasons: first, the color and brightness is more stable both long- and short-term; second, LED backlights typically need less power; and third, unlike fluorescent tubes, LEDs do not contain mercury
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