Touch Screen Connector Location

After reassembling my IPhone 4s my touch screen is non-responsive. I am guessing the connector is loose but I am not sure which one it is. I did check what was called the data display cable which seems to be fine; however, I am thinking this just sends the picture to the phone. I could not find anything in the guide that refers to any other screen connector though. Could anyone let me know which cable it is?