A characteristic designed to stop injury to the show of units working the Android working system. This performance sometimes prompts after a interval of consumer inactivity and shows a dynamic or static picture, animation, or assortment of knowledge. As an illustration, it’d present a clock, images from a chosen album, or a sequence of colours.
This mechanism serves a number of functions, together with extending the lifespan of the system’s display screen by mitigating burn-in, particularly in older show applied sciences. Past preservation, it may possibly additionally current helpful info at a look and, in some cases, improve the system’s aesthetic when idle. Its origins lie in early computing the place extended static photos might injury CRT displays; whereas trendy shows are much less prone, the follow persists for the aforementioned supplementary benefits.