They're already way ahead of you on this. They just recently released a few monitors that use their own proprietary PLS (Plane-to-Line Switching) technology. PLS matrices are very similar to IPS matrices, so both panel technologies offer image quality that's far superior to TN.
I really liked Samsung's S-PVA displays myself, at least in terms of image quality. If they could have reduced the input lag and response time of their S-PVA panels to an acceptable level, they would have easily made IPS tech obsolete. S-PVA displays offer much better black levels and contrast when compared to IPS and their color accuracy is exceptional. They only faltered when it came to input lag and response time (some S-PVA displays lag in the area of 60ms!).