Well I can't get you too far, but the LCD is made by Truly Semiconductor Ltd. I suspect that the company originates in Korea, so at least you speak the same language.
I managed to get as far as their standard products on their US site...
http://www.trulyamerica.com/products/tft-modules/#EDIT: Sorry, looking at the company info, that might be China. If you have the unit that it plugs into, Kia are very good at documenting their interface connector pinouts in their service manuals.
P.S. Sorry, I completely missed that you had already found the Truly site.