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To: TechieGuy-alt who wrote (121912)	5/19/2004 10:58:01 AM
From: fyodor_	Respond to of 275872

TG: Someone correct me if I'm wrong. That's a dangerous thing to write in a forum like this ;-) The correct explanation is actually that when the electron beam of a CRT monitor hits the phosporus, said phosporus only glows for a VERY short time. And it won't glow again until it is hit the next time (which at 100Hz would be 10ms later). An LCD, on the other hand, works in a completely different manner. Here, there is a white backlight (well, usually 4 or so, to get more uniform color) and the liquid crystals simply act as (red, green and blue) filters. Thus there is ALWAYS light coming from a given pixel (provided it's not black, in which case only very little light from the backlight escapes). The refresh rate refers to how often the voltage across the individual liquid crystals cells can be changed (different voltages result in more or less of a given (red, green or blue) color is let through - physically by changing the orientation of the liquid crystals). -fyo