According to wikipedia
"A touchscreen or touch screen is the assembly of both an input ('touch panel') and output ('display') device. The touch panel is normally layered on the top of an electronic visual display of an information processing system".
In my opinion the domain s a unique domain name and can not be shorter,. For example Restaurantsupply.com a 16 character domain name was sold in the 6 digits, constructionsupply.com was sold for 20k, silkscreensupply.com sold for 12k discountmedicalsupply.com sold for 9500. And the list goes on