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Posted by Gene E. Bloch on 04/13/06 17:58
On 4/12/2006, Jeff Rife posted this:
> Gene E. Bloch (spamfree@nobody.invalid) wrote in alt.tv.tech.hdtv:
>> Try waving your fingers fairly rapidly in front of a CRT display and in
>> front of an LCD display. It's an eye-opener.
>>
>> In front of a CRT you see a strobe effect with several sharp images of
>> your fingers. In front of an LCD you see a smear.
>>
>> Well, that's what I see, anyway.
>>
>> This would seem to corroborate ~P~ in my view (pun not intended, but
>> accepted).
>
> Nope, it's just different versions of the same effect. One difference
> is that LCD has radically different rise/decay properties from CRT
> phosphors. There is also the fact that CRT spends some of its time
> drawing "off the screen", which LCD does not.
You're using that argument to draw the wrong conlusion, I would say.
The LCD pixels glow at a relatively fixed intensity for nearly the
whole interframe time, i.e. that's what their "radically different
rise/decay properties" are all about. And the resulting lack of the
strobe effect is exactly why LCDs don't flicker even for me, who is
(am?) very sensitive to flicker at 60 Hz.
Gino
--
Gene E. Bloch (Gino)
letters617blochg3251
(replace the numbers by "at" and "dotcom")
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