Do I need to replace the LCD screen and touch screen separately?

My Wii U tablet has cracked and isn't visible on the right 70% of the screen. After reviewing the howto's on this site, I looked up a replacement part and found this:

http://dx.com/p/replacement-lcd-screen-f...

I think this will solve my problem! My only question is, will I need to replace some sort of "touch screen overlay" in tandem with it?

My controller still works 100% touch wise - even if I can't see what's on the bottom, the touch controls work on parts of the screen that are cracked/blank.

Any information or help would be most appreciated!