High Dynamic range, or HDR, is perhaps the most exciting of the trio of improvements that Ultra HD brings to the table, the others being a wider color gamut and higher resolution. The images from a flat screen set pop off the screen in a way that the dimensional but often too dim 3D never could. And you don’t need special glasses to see it.
A flat screen set, capable of peak brightness levels of over 1000 nits (just under 300 foot-lamberts) can make the most of an HDR source. HDR program material is mastered for a peak output of either 1000 nits or 4000 nits, with most of that luminance reserved for bright highlights.
But not all displays can hit 1000 nits...
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