touchscreen vs computer display

touchscreen and computer display both are nouns.

Word	Noun	Adjective	Verb	Adverb
touchscreen	Yes	No	No	No
computer display	Yes	No	No	No

As nouns, computer display is a hypernym of touchscreen; that is, computer display is a word with a broader meaning than touchscreen:

touchscreen: a computer display that enables the user to interact with the computer by touching areas on the screen
computer display: a screen used to display the output of a computer to the user

Other hypernyms of touchscreen include computer screen.

touchscreen (noun)	computer display (noun)
a computer display that enables the user to interact with the computer by touching areas on the screen	a screen used to display the output of a computer to the user