But that is a technology-based comparison, rather than a performance-based comparison. There are no intrinsic reasons
I clearly see an abrupt color cut-offs in smooth skin gradations when working in Photoshop unless my head is positioned perfectly [speaking of MBP, arguably the best TN-based laptop LCD]. So... intrinsic reasons or not, I haven't seen a usable TN-based display yet.
W700 costs almost 3 grand. For that kind of money I don't need yet another "best TN laptop display", something like my 6-year old 17" Samsung with a true 8bit panel will do.
F1 has displacement limits. http://en.wikipedia.org/wiki/Formula_One_regulations#Engine
F1 is not relevant to the world outside racing, where there are no displacement limits. Important engine metrics in the consumer world are size, weight, reliability, repairability, fuel economy, and capex economy.
It seems so: http://www.robgalbraith.com/bins/multi_page.asp?cid=7-9320-9...
We know of no IPS screens in current-model laptops, ThinkPads or otherwise, and it's a shame, because our T60's FlexView display has some killer attributes.
But that is a technology-based comparison, rather than a performance-based comparison. There are no intrinsic reasons OHV engines can't outperform OHC (overhead cam) engines; spray-on fireproofing can't outperform concrete fireproofing; or TN panels can't outperform IPS/PVA/MVA.
My latest Thinkpad took away true-color screen
Have you looked at the (TN-paneled) ThinkPad W700? http://www.robgalbraith.com/bins/multi_page.asp?cid=7-9320-9...
If you yearn for a laptop display that rises above acceptable, one whose colour accuracy matches a good desktop display, there's only one in this test: the ThinkPad W700. In fact, for us, it could just about replace a desktop display for colour critical work and even soft proofing for print in Photoshop