Apple Pro Display XDR Review
The 32-inch Pro Display XDR has a 6,016-by-3,384-pixel native resolution, known casually as "6K." The chassis shares much of its design aesthetic with the revamped 2019 Apple Mac Pro, in particular the "cheese grater" metal housing that serves a dual purpose: looking good, and keeping the circuitry and LEDs at work underneath cool.
The Apple Pro Display XDR's LED-backlit display utilizes a feature known as "full-array local dimming," or FALD for short. FALD is a method used to backlight displays that differs significantly from other monitors. In traditional LED-backlit displays, the whole panel is brightened and dimmed
through "global dimming," in which every LED at the back of the panel is controlled by a single setting. This means that as scenes brighten or darken, the whole panel brightens or darkens with them.Conversely, in FALD displays, each part of the scene can be dimmed or brightened independently,
allowing for much greater contrast and visual quality. Right now, FALD technology is the closest that (relatively) less-expensive displays can get to matching the contrast ratios of two other key emerging display technologies: OLED and microLED.
The latter is especially one to watch; microLED is a new screen technology that is just getting off the ground in the first half of 2020, spearheaded by TV manufacturers like Samsung and LG. In microLED displays, every pixel is its own individual LED, which can lead to some of the best-looking images seen
on displays yet. But for now, the cost of manufacturing
these panels is almost prohibitively expensive, to the point that a 6K
monitor like the Pro Display XDR couldn't realistically use the tech
(yet).
Apple doesn't classify the Pro Display XDR as microLED, OLED, or another emerging type, mini LED, but the panel does have 576 full-array local dimming zones, which means it has much in common
with mini LED. Displays with this kind of discrete-LED array are notorious for running much hotter than standard LED-based displays. The metal grating of the Pro Display XDR both passively cools the display while allowing for airflow to move from the panel to the outside world and back through the rear of the unit. That means no noisy fans are needed to direct the air where it needs to go.
Up until this point, monitor manufacturers have kept their passive-cooling heatsink designs hidden under a shroud of plastic. This is the first time any designer has thought to use the passive-cooling apparatus as the actual housing for the monitor itself, and as a design element.



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