It is specifically meant to convert the older "LVDS" digital flat panel display standard into the newer DVI standard. It just so happens that LVDS used TTL signaling. Just because it uses the same type of signaling doesn't mean it uses compatible signaling.

Of course, it is entirely possible that you could use this, in combination with another more simple board, to extract a compact Mac-compatible signal...

But we'd need someone with more experience playing around with compact Mac TTL signals, who can also find detailed technical information on LVDS, to let us know for sure.