On Tue, 21 Sep 2004, C.H.Ling wrote:
> I don't understand why LCD has no output adjustment, may be you are talking
> about some calibration tools that cannot control the output (brightness) of
> LCD? For the life I don't see why LCD will get dimmer and dimmer and CRT
> will not, CRT is famous for aging.
LCD's get dimmer because the flourescent backlighting ages just like the
flourescent lights in your home do. Eventually one end of the tubes become
darker than the other and your get uneven illumination on the display. With
CRT's they get dimmer across the entire display and you can sometimes correct
for it by increasing the gain.
-mark
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