There have been plenty of builds in the last couple years using full 1080p HD 15.4 LCD/controller kits. Google search of the LL forum:
site:lumenlab.com 1080pYou might run across a "quirk" when searching using Google, however. If you notice the thread looking "wonky" like
this image, simply go up the the top right corner of the thread and click on
Options and then
Switch to: Standard.
A lot of people have been using the lower resolution 15.4" or 15.6" LCD TVs, capable of displaying a little more than 720p. I went with a 720p 12.1" LCD/MST controller.
Even though "john-zo" of "manhat-lcd" (edited so it displays) no longer sells the full 1080p LCD/controller kits, there are other online vendors you can purchase from.
I usually recommend Google Image search for looking for parts. The -Lumenlab is simply to stop links leading back to the LL forum.
Google:
+15.4 +LCD +Pixelworks -Lumenlab