The characteristic beneath dialogue presents dynamic visible parts, comparable to pictures, animations, or informational shows, when an Android system stays inactive for an outlined interval. A standard occasion entails a rotating gallery of pictures, a clock show, and even system standing info showing on the locked display after a user-defined timeout.
This operate serves to forestall display burn-in, a phenomenon the place extended show of static pictures leaves a everlasting ghost picture on the display. Traditionally, it provided vital worth on older show applied sciences like CRT and early OLED panels. Whereas fashionable units are much less prone, the characteristic retains worth by offering an aesthetically pleasing and informative idle display show. Furthermore, it could supply restricted display safety by minimizing total display on time.