Tom's Hardware > Forum > Computer Peripherals > Flat Panels/ LCDs > Pls Explain Rise & Fall Response Times???

Pls Explain Rise & Fall Response Times???

Forum Computer Peripherals : Flat Panels/ LCDs - Pls Explain Rise & Fall Response Times???

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frankjp   01-12-2002 at 07:43:05 AM

Hello,

I've been researching LCD monitors and I see some manufacturers just displaying a single response time, while others show a Rise Time & a Fall Time.

Can someone explain the difference and how to compare the two??

Thanks!
Frank

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SDLeMire   01-12-2002 at 10:40:53 AM
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If they display a single then it's likely the total (rise+fall) which is what you should be concerned about. If they display rise&fall seperately, just add 'em up. If 3D is important, try to stay <30ms which is still twice as slow as a typical CRT but minimal blur/ghosting.

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nikolajhendel   01-12-2002 at 12:37:49 PM
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Respons time is a measure of how quick the pixels go from black to white - and back again from white to black.
Response time is the total of the two, whereas rise time is black to white and fall time is white to black.

So when you have response time the preferred value should be below 30 ms - and if you have rise time and fall time, the two added up should be below 30 ms.

Nick

The only way I heat up my house is by overclocking my cpu :tongue:

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Anonymous   01-13-2002 at 03:28:29 PM
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even then it is often overstated since intermediate tones may take even longer to change states completely.
That said, don't get too hung up on spec's - most people seem to be happy with their screens. If you are a hard core gamer staywith CRTs for another year or two. LCds will only get better and cheaper ....$300-400 will get you a great CRT or a mediocre LCD.

In theory, there is no difference between theory and practice; In practice, there is.

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Flamethrower205   01-13-2002 at 05:23:05 PM
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Unless you wanna dish out 800 bucks as I did, and then LCD is very fit for gaming...my TFT7020 has no ghosting no nothing. It's awesome...looks better than my CRT!

My rice car will leave your R8500 in the dust!

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hammerhead   01-14-2002 at 12:21:32 AM
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Yeah but Flame, your CRT was a piece of [-peep-] :smile:

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Flamethrower205   01-14-2002 at 01:36:43 AM
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Actually, I have 2 CRT's. One's a 5 year old 15", the other a brand new (ok, few month old) 17" Viewsonic Graphics series (the best 17" they had in that series). The TFT7020 is still better than it.

My rice car will leave your R8500 in the dust!

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