Contrast ratio actually needs to be specified using ANSI or other standardized testing method, otherwise it's just meaningless. I think even ANSI might be fudgeable.
"Dynamic" contrast is one where the backlight is dimmed for dark scenes, and that really screws things up, so your black level is all over the place depending on the white level required in a given frame, and the backlight is probably always lagging anyway when it does that.
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Contrast ratio actually needs to be specified using ANSI or other standardized testing method, otherwise it's just meaningless. I think even ANSI might be fudgeable.
"Dynamic" contrast is one where the backlight is dimmed for dark scenes, and that really screws things up, so your black level is all over the place depending on the white level required in a given frame, and the backlight is probably always lagging anyway when it does that.