which is why features like the grayscale mode were introduced on smartphones. When enabled, this mode turns everything on your display to black and white, with varying contrasts so you can still ...

LG Optimus Black smartphone Insurgent smartphone maker LG ... or writing documents with higher levels of brightness and pure white tones that deliver true black and white colors for ideal handset ...

Kuss specializes in smartphone use and internet addiction. “Once you are really engaging with a black and white screen, the likelihood of you spending a lot of time with that screen is certainly ...