Hi!
>I notice more and more lately they're pushing the LED screen as a
> selling point in PC monitors.
> Do you feel they really make that much of a difference?
The main differences have to do with energy used, backlight lifetime, and
what happens when the display has reached the end of its useful life.
Fluorescent bulbs (the normal source of a backlight for an LCD panel) have
mercury in them that can be released if the bulb is broken (as it likely
will be) during disposal.
LEDs don't need time to warm up at all, where a fluorescent backlight could.
I've only ever seen a handful of backlights that actually failed, and
sometimes such faults were in the inverter driving them. The oldest examples
I have are presently a Compaq LTE 5000 laptop and an IBM PS/2 L40SX laptop.
Both still work fine, although the Compaq backlight has a bit of a color
tinge to it after all these years--and it seems to have grown dimmer.
> And also, how can you tell which PC, monitors etc... have them and which
> ones don't?
Research the models in question on the manufacturer's website, ask people
who have them, check the manual if you can. I wouldn't rely on the word of
in-store advertising and information cards.
William
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