There are several companies out there making boards like this:
If you look through their supported displays, the 7" hitachi used in these lilliput's is listed. What else would be required to connect it directly to a NX15000G motherboard with LVDS? Specs for that are here:
Unfortunately I haven't been able to figure out how to ask the manufacturer this question directly, I'm not sure where they have their resellers listed nor anyone else associated who may speak english...
I found that first board via Google, there was a discussion in a forum topic here (search for "TX18D16VM1CAA" on that page):
Here's another board:
Those two don't list the 7" Hitachi as a supported display.
Apparently there is a slightly better spec version of the 7" Hitachi now available, and it is also supported by the first two cards:
Anyone been able to do this yet? I've spent way too much time combing through forum posts and I have yet to find anyone who was able to plug-and-play a 7" LCD of any kind via LVDS even with one of these boards.