display vs electronic device

display and electronic device both are nouns.

Word	Noun	Adjective	Verb	Adverb
display	Yes	No	Yes	No
electronic device	Yes	No	No	No

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

display (noun)	electronic device (noun)
something shown to the public	a device that accomplishes its purpose electronically
a visual representation of something
an electronic device that represents information in visual form
exhibiting openly in public view
something intended to communicate a particular impression
behavior that makes your feelings public

display (verb)	electronic device (verb)
to show, make visible or apparent
attract attention by displaying some body part or posing; of animals