gaffer1986, on 08 Apr 2017 - 8:31 PM, said:
I thought OLED screens had black blacks due to the nature of OLED back lighting?
OLED screens do not have a backlight , the reason they give awesome black is due to there being no backlight
each pixel is self illuminating and its intensity is controlled directly , so when its off it has no light emitted at all --so black
the contrast ratio again is awesome because of the fine control of the intensity of each pixel
an LCD has a backlight with liquid crystal acting as shutters to control how much of the light gets through, even with the shutters totally closed
there is still a tiny amount of light passing through (some screens are better than others) --so not completely black
the contrast ratio is dependent on the blackness achieved and the level of control over the shutters.