At this year’s WWDC event, Apple launched a new Pro Display XDR display that promises improved contrast and better brightness. With 6 million pixels distributed on 31-inch screen equivalent to 218 pixels / inch, full-screen brightness of 1,000 nit, contrast of 1,000,000: 1 :. According to Apple, XDR stands for Extreme Dynamic Range.
1. Compare XDR vs HDR
Compared to “standard” high-end monitors, XDR monitors cost 5 times more, providing users with a better experience.
With a similar screen size of 32 inches, we can see the 31-inch Logic 4K Reference Master Monitor TV screen sold for $ 32,395, offering the same features as Apple’s control panel but without resolution. 6K. In the self-WWDC speech, Tim Cook said the company’s goal was simply to create a display device for professional workers. Apple also said it has improved HDR technology on larger Retina displays.
HDR is considered standard and used throughout the industry, Apple claims it has far surpassed HDR. So what makes XDR go beyond HDR?
First, XDR can maintain 1,000 nit screen brightness compared to standard HDR, which only maintains about 350 nit on conventional computer screens.
Even the iMac screen, one of the highest brightness computer screens, is only half the brightness of the new Pro Display XDR screen. Brightness is extremely important on the screen because the HDR effect cannot be clearly displayed on a dark screen.
The VESA DisplayHDR 1000 standard requires a sustained brightness of 600 nit and a maximum brightness of 1000 nit. The XDR screen Apple announced is 60% brighter than the standard DisplayHDR 1000 screen in both cases. Since none of the screens other than the reference models mentioned actually reaches 600 nits brightness maintained, we have to “trick” the HDR content output system or at least simulate the capture effect. mimic. Even most LED TVs do not achieve the same contrast ratio as Pro Display XDR.
According to Apple, HDR is also a way to revitalize content, reflecting what users’ eyes can see in the real world better. And the eye can see special reflection, richer and richer colors as well as intermediate details.
Contrast is another factor to evaluate, compare XDR vs HDR. Some high-end TVs and even computer screens turn to OLED screen technology, a screen technology that does not use the backlight, has the ability to display colors with outstanding depth, contrast. high.
So how did Apple’s Pro Display XDR display achieve a 1,000,000: 1 contrast ratio?
Instead of using a white LED, the alternating apple uses the blue 576 LED strip to enhance the brightness and the time driver applies a weight algorithm to adjust each LED according to the content. The time driver adjusts the LED at 10 times the frequency of the update on the LCD monitor to reduce latency and ensure smoother playback with crisp colors in every detail. Then use custom lenses and reflectors to shape and control light precisely.
Behind the screen is designed with many round holes, acting as a radiator, increasing the cooling surface area by 2 times.
Although the TV Logic reference model can reach a maximum brightness of 2,000 nit, 25% brighter than the maximum brightness of the XDR screen. However TV Logic only allows users to use their reference model in well-ventilated areas and must use external fans if needed. The circular holes designed behind the XDR display help solve this problem. The screen can achieve a maximum brightness of 1600 nit when temperatures are below 25 degrees Celsius, or 77 degrees Fahrenheit.
2. XDR super wide viewing angle
In addition to compatibility with HDR, Apple’s Pro Display XDR display also offers wider color range support. Both XDR and reference screens such as TV Logic are calibrated with high precision, promising color displays with the highest possible quality. Both monitors support the P3 color palette with 1.07 billion different colors.
In addition, Apple says the Pro Display XDR screen has an ultra-wide viewing angle, and the off axis contrast is 25 times better than conventional LCDs. In addition, users can spend an additional 1000USD to be anti-glare with optional Matte Nano-texture.
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