The function beneath dialogue presents dynamic visible parts, reminiscent of photos, animations, or informational shows, when an Android gadget stays inactive for an outlined interval. A typical occasion entails a rotating gallery of images, a clock show, and even system standing data showing on the locked display screen after a user-defined timeout.
This perform serves to stop display screen burn-in, a phenomenon the place extended show of static photos leaves a everlasting ghost picture on the display screen. Traditionally, it supplied important worth on older show applied sciences like CRT and early OLED panels. Whereas trendy gadgets are much less prone, the function retains worth by offering an aesthetically pleasing and informative idle display screen show. Furthermore, it might supply restricted display screen safety by minimizing total display screen on time.