I'm only relying on memory, but I don't think screen resolutions on high-end personal computers improved significantly between 2001 and 2010, even as drastic improvements were seen in smaller devices such as phones. The reason is that large screens with higher resolutions mean even more pixels, and a higher likelihood that one of them will fail during the manufacturing process, resulting in significant numbers of faulty screens that have to be discarded. So it wasn't seen as economically viable to increase screen resolutions much beyond 150 ppi or so.