That's good stuff Thane - thanks. Aside from the viewing angles, I could see that if you are in the graphics business not being able to do full 8-bit color would be a big negative. But that's not a huge issue for me and neither is the viewing angle.
On Dec 18, 2007 8:34 PM, Thane Sherrington <[EMAIL PROTECTED]> wrote: > At 09:24 PM 18/12/2007, Brian Weeden wrote: > >The X223 is listed in a couple places at $350. Not bad. However the > >reviews I have seen said it's a TN+film panel and I keep hearing > >that's not so hot but haven't figured out why yet. So it will stay on > >the list as a possible. > > "TN Film (Twisted Nematic + Film) > > With their fast response times, TN Film panels > are arguably the most responsive in the market > today. Response times of 4ms G2G and under are > common place. Black depth is not quite as good as > VA panel types, but has improved significantly in > recent times, aided further by the introduction > of high dynamic contrast ratios. Colour accuracy > is very good with proper calibration; however > some people are put off by the 6-bit colour > depth. Modern FRC methods and improved panels > make TN Film still pretty decent in terms of > colour accuracy, but remain behind VA and IPS > panels. Movie noise is often a problem, > especially where overdrive technologies are > excessively used, or implemented with poor > control. Perhaps the most obvious down-fall of TN > Film is the restrictive viewing angles, > especially vertically. TN Film based displays are > normally very cost effective however, and > dominate most sectors up to and including the 22" range. > > MVA (Multi-Domain Vertical Alignment) > > MVA panels offer typically very good black depth, > a notch above TN Film. The viewing angles are > also greatly improved, and are wide in both > horizontal and vertical fields. Colour depth is > nearly always a true 8-bit, with no need for FRC > methods. Colour accuracy is very good, and movie > playback is probably the smoothest and least > prone to 'noise' on MVA based matrices. Response > times are decent with modern overdrive methods, > but not quite as fast as TN Film panels. MVA > screens are considered very good all round. > Viewing angles are slightly inferior to IPS > panels however, and a characteristic contrast > shift can be seen as you move your line of sight > off-centre. This is why IPS panels are considered > more suitable for colour critical work, and are > more widely used in professional display ranges. > Premium-MVA (P-MVA) and Super-MVA (S-MVA) are > variants of this technology and represent the > modern generation of such panels. Advanced–MVA > (AMVA ) is very new, and is designed to offer the > next generation of improvements in this technology. > > PVA (Patterned Vertical Alignment) > > Samsung's own version of VA matrices, offering > very similar characteristics to MVA based > screens. Movie noise is more accentuated however, > and overdrive control is more variable. Black > depth is very good; arguably the best in the > market, and again PVA panels are pretty decent > all round. Super-PVA (S-PVA) panels represent the > latest generation of PVA screens and feature some > improvements over the older PVA panels. > > IPS (In Plane Switching) > > IPS and Super-IPS (S-IPS) panels are well > regarded at the moment. They offer the widest > viewing angles in the market, and are superior in > this regard to VA matrices. They do not suffer > from the off-centre colour / contrast shift of VA > panels and are commonly used in colour critical > professional displays as a result. Response times > are variable, but some modern overdriven panels > are very responsive in practice, even being > comparable to the fastest TN Film panels. Colour > depth is 8-bit and colour accuracy is very good. > Black depth is not as good as VA based displays, > but modern dynamic contrast control has improved > performance in this area for multimedia > application. IPS based screens are typically the > most expensive however, but some modern panels > are very good all round. Movie playback is noisy > in most cases, and a step behind MVA panels." > > From this description, I can't see a big problem > with TN Film. I don't care about viewing angles, > since I'm sitting in front of the screen, but I > guess that could be an issue. I'd like to see > all four side by side to see the differences. > > >I did also see the Samsung 226 BW which seems to be pretty awesome > >except there is an A version and a S version and it looks like you > >really don't want to get the S version: > > Not a big fan of Samsung. I installed 52 of them > at the local Philatelic Centre, and the image > quality is crap. Everyone complained about them, > and I spent quite some time trying to get the > image better, and there wasn't much I could > do. These are W2K machines, so maybe that's part > of the problem. Two have died already, and they > are about eight months old, so that's not a good sign. > > T > > -- Brian Weeden
