A device display rendered in monochrome, specifically shades of gray ranging from black to white, can impact visual processing and battery consumption. For instance, activating this setting on a smartphone presents all applications and system interfaces without color information, effectively creating a grayscale experience.
The implementation of this visual alteration often serves to reduce distractions and encourage focused usage of the device. Historically, this feature has been employed as an accessibility option for individuals with color vision deficiencies or light sensitivities. Furthermore, it can extend battery life by decreasing the power required to illuminate the screen, as color displays typically draw more energy.