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pmonson

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Posted on Monday, July 14, 2003 - 1:05 am:   Edit PostDelete PostView Post/Check IPPrint Post

I am curious... What type of monitor does everyone use? I am currently using 21in KDS but have moderate ghosting artifact due to medium persistence phosphor, even with low refresh rates. Anyone find a good quality short persistence phosphor monitor? I have searched the internet and haven't turned up a whole lot.
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Alexander Oest

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Posted on Tuesday, July 15, 2003 - 7:17 am:   Edit PostDelete PostView Post/Check IPPrint Post

I use a ViewSonic E95, which is very slow and produces lots of ghosting - so that's not the one to buy.

I've tried to find information on the phosphor types used in common crt monitors, but I only find monitors using P22 low-medium persistence phosphor. AKAIK, higher P-numbers (i.e. p.23, 24, etc) have lower persistence, but googling for monitor specs using these numbers has turned up nothing.

If somebody somewhere has made a review of monitors comparing persistence, it'd be really useful.

Alex
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Tommi Korhonen

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Posted on Wednesday, October 22, 2003 - 11:07 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Are you sure it is monitor phosphorence time? I have medium ghosting, and I really would like to get rid of it. But that ghosting is the same on any refresh rate...
After searching around, I've come to the conclusion that the LCD elements themselves have very high rise/block time, and that may be part of the ghosting. The rise times for typical elements seem to be on the order of 7ms, and step down times more, 10-15ms. Together they make the cycle so long that high refresh is impossible without ghosting. :(

This means that you should have faster shutters, which are hard to get. OR you could change the (pre)timing of the blocking, but doesn't seem to be readily available.

And also it looks like that considering the above, the eDimensional seems to have quite fast shutters. I haven't been able to measure them, but they must be better than that 20ms cycle... (You can easily go 140Hz/2 with these, and the ghostin is still the same...)
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Anonymous

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Posted on Thursday, October 30, 2003 - 5:41 am:   Edit PostDelete PostView Post/Check IPPrint Post

I would also welcome a list of monitor that have short persistence and/or P43 phosphors. Hopefully someone knows of at least one!

Info regarding phosphor persistence:
http://www.stereo3d.com/crosstlk.htm

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