That is an excellent answer but unfortunately not to the question I asked.
I'm actually asking about the Realtek wireless duaghterboard that I pulled out of that tablet.
But your answer wasn't wasted. Indeed there was a resistive touch screen removed from the tablet (and saved) and it did have 4 wires. I know very little about how touch screens work but now you've got my interest piqued and I may have to pull that out and play with it.