That is correct. But you do still need to supply it with power and drive the backlight properly and whatnot, so it's not as easy as repinning a DisplayPort cable.
The Chromebook Pixel panel is LG LP129QE1, the datasheet is here for all interested: https://www.revo-sys.com/prodimages/LCD-Display-Panel/LG-12.9-LP129QE1-SPA1-LVDS-2560-1600-400-NITS.pdf . I have one at home already so I can comment on it a bit. It is very thin, similar to the iPad panel, but a difference is that it does not have mounting ears. This will make it somewhat difficult to hold onto in a case or array. The board at the bottom is held on by screws through a jut in the casing, and may be able to be bent back for closer arraying, but I've not yet investigated closely enough to say (I haven't taken the protective adhesive PCB shield off yet to see how it connects to the panel).
I've got some designs kicking around for a milled aluminum casing to make the panel into a self-contained portable monitor, I may solicit some opinions from you-all when I have something worth showing off.