LCD cables are listed on page 213 (or 6-9 by internal file numeration).
Unfortunately there are four of those- part numbers 50.4MF01.031, 50.4MF01.001, 50.4MF01.021 and 50.4MF01.011.
Check those out- often times the same cable is used in another notebook so it may be easy to find.
Most likely you won't have to replace it at all if you want to keep the default resolution.
If your notebook has not been offered with higher resolution screens- it most likely doesn't support dual LVDS in which case not even replacing a cable for a dual LVDS one helps.
HDMI is indeed impossible. Based on my experience with Acer it will go like this- you can fit almost any 1366x768 and your LCD cable will works fine but you most likely can't upgrade to FullHD screen due to lack of dual LVDS.
Currently only notebooks that are 17" and up use screens that require dual LVDS but all 15" Acers use 1366x768.
It doesn't mean that is can't be done (see .NetRolller 3D's profile) but it isn't easy and in some cases it's impossible.
You can -however- easily replace your current screen foe a better one or a matte one 1366x768.