IPA: /ˈɒnˌskriːn/
KK: /ˈɑnˌskrin/
Referring to something that is displayed or visible on a screen, such as a television or computer monitor.
The onscreen instructions were easy to follow during the setup process.
Onscreen → It is formed from "on" (meaning in a position of contact or support) and "screen" (from Old English *screene*, meaning a partition or a protective cover). The word "onscreen" refers to something that is displayed on a screen, indicating it is in contact with or supported by the screen.
Think of something being 'in contact' ('on') with a 'partition' or 'cover' ('screen') — that's why onscreen means something displayed on a screen.