1. flatscreen - Noun
2. flatscreen - Adjective
(of a television or monitor) Being slim from front to back, as opposed to earlier bulky models; like a flatpanel.
(dated) being flat square, having the image display surface of a display screen being flat
(dated) being vertically flat, having an image display surface of a CRT display screen that is vertically flat, but horizontally round
flatscreen (plural flatscreens)
A screen or device of this kind
Flatscreen TVs for viewing in bath or bed bring the comfort of home to the resort experience. Source: Internet