Originally Posted by metroidfox
It's a dual layer LCD panel. There is no backlight dimming on it.
First [active] layer is monochrome, and the second is a standard IPS RGB layer.
Even if you consider standard IPS contrast ratios of 1000:1 this thing has 1000 * 1000 = 1000000:1
It's the same style of panel as that $80000 Sony I linked previously. Totally a bargain if you realise how exotic it is.
Yes there is back light local dimming. It's right on tech specs on apples website. Which is a great feature btw, but it's not likely to be any more impressive than other displays with the same tech.