The phrase "center touchscreen" refers to a screen that is placed in the middle of a device or equipment, which can be tapped or swiped to control different functions or access information. Full definition
The approximately 7 - inch center touchscreen uses a portrait orientation. (cnet.com)
Every T5 AWD model ships with a 9.0 - inch center touchscreen display (with Apple CarPlay and Android Auto) and a 12.3 - inch digital driver display that put the XC40 on the cutting edge of its segment. (digitaltrends.com)
Handling infotainment duties is a 9.2 - inch center touchscreen with gesture controls. (cnet.com)