A characteristic designed to forestall harm to the show of units operating the Android working system. This performance usually prompts after a interval of person inactivity and shows a dynamic or static picture, animation, or assortment of knowledge. As an example, 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 machine’s display by mitigating burn-in, particularly in older show applied sciences. Past preservation, it may additionally current helpful data 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 harm CRT displays; whereas trendy shows are much less prone, the apply persists for the aforementioned supplementary benefits.