I thought I'd jump in here instead of making a new thread, to give some comments on OLED displays.
When we first saw OLED, the screens were small, very small, but very impressive with their ability to be bent, torqued and even submerged. It almost seemed to good to be true, and the idea of them reaching a size of a common television or business display at 40" seemed like something for far in the future.
However, I have a really close tie-in with the U.K.s largest A/V distributor, and they've been promised by a few manufacturers that by the end of 2009, they will be getting 40" or larger OLED screens, and under 1000 GBP in cost!
The problem that OLED presents, and something you don't often see when they are advertised or exhibited, is that they still need a box or a unit to house the connectivty and circuit boards, as well as the display ports and etc. This is true both for televisions and computer monitors. It's nice that you can slap a millimeter thickness screen anywhere on your wall, but it must still have be wired to a box somewhere else.
The other thing to note, is that visual performance wise, OLED is not what they make it out to be. The basic rule of thumb here is that OLED is about 'green' and saving energy, not about performance.
CFL and RGB LED will always be better visually speaking. The problem is that RGB LED is not yet an industry standard because of the cost, but that will change. TN Film TFT monitors have come a long way in the last few years, and soon they will make a fairly significant leap in both performance AND energy savings, so much so, that OLED (for large screen sizes) will most likely end up a novelty.
The only real market for OLED, is in embedded applications, such as phones, Ipods, Blackberries, gas station pumps? etc.
Also, as an added note, supporting the advancement of TN Film : PVA and ISPS are by now considered old technology, ones that won't be getting any more support from manufacturers. The real benefits of PVA/ISPS is the color output. It is noticeably better than TN Film of old, but again that will change, especially with RGB LED monitors. The other factor of PVA/ISPS, the viewing angles, is relevant in some applications, such as display monitors in a public area, where people view it from all angles. The problem is, that they design the viewing angles based on text, not color aspects. Which is why, no matter how high the viewing angles, or the quality of the screen, you will always lose color saturation/tint/hue when viewing outside of the margin of error.
For home use, where 98% of the time you view the monitor from straight on, viewing angles are an irrelevant factor.
And of course, even the lowest PVA/ISPS latency, from 5-18ms, can be noticeable in a negative way.
With that in mind, we need to get over this hump that TN Film is for low quality monitors only, as it will be the first technology to bring RGB LED into the mainstream, and also do everything ISPS does but better.