A characteristic designed to forestall injury to the show of gadgets working the Android working system. This performance usually prompts after a interval of consumer inactivity and shows a dynamic or static picture, animation, or assortment of knowledge. As an example, it’d present a clock, pictures from a delegated album, or a collection of colours.
This mechanism serves a number of functions, together with extending the lifespan of the machine’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 machine’s aesthetic when idle. Its origins lie in early computing the place extended static pictures might injury CRT displays; whereas trendy shows are much less prone, the apply persists for the aforementioned supplementary benefits.