Display Uniformity

With Apple billing the 9.7" iPad Pro as a professional device with individually calibrated displays, I felt it was relevant to bring our uniformity test over to mobile. While we usually just measure errors at the center of a display, there are also errors across the panel itself due to inconsistencies in the panel and the backlighting array. This means that a display can be accurate at the center, but the edges can have significant luminance dropoff or gain that makes the display unsuitable for any sort of image work due to the fact that there are visible color differences across the display itself. For this test we use an array of 25 points on the display and measure the accuracy of colors in the GretagMacbeth ColorChecker test, as well as the uniformity of the white and black levels at each spot.

While I don't have any other mobile devices for reference, if I were evaluating the 9.7" iPad Pro as a professional monitor I would say that the white uniformity is decent, but not amazing in any regard. The central area of the display is fairly uniform, but there's noticeable dropoff on the left, right, and bottom edges. This is something I see on a number of phones and tablets, and maintaining uniformity probably hasn't been a concern for vendors until this point, but I'm hoping that a larger focus on it will make companies put more focus on it as a selling point for professional devices.

Black uniformity on the 9.7" iPad Pro isn't great. If you divide the display along its diagonal from the top right to bottom left corners you see that the in general the bottom section has higher black levels, while the top has lower black levels. In general, the black level isn't as dark at the edges as it is in the center. Black levels and contrast are the areas where Apple's LCDs really can't compete with Samsung's AMOLEDs, and with the 9.7" iPad Pro falling pretty far behind its bigger brother with black levels Apple should put more focus on at least keeping their blacks consistent across the display.

While the black uniformity isn't great on the 9.7" iPad Pro, and the white uniformity is just okay, the uniformity for colors is outstanding. There are a few hot spots on the edges, but in general the error relative to the center is well under two, and often near or even below one. I'm surprised that Apple has such uniform color rendition, as an uneven luminance level will usually throw off colors much more severely. Whatever the case may be, you can at least depend on even color rendering across the 9.7" iPad Pro's display.

Display Analysis: Color Accuracy in DCI-P3 and sRGB A Few Thoughts On True Tone
Comments Locked

144 Comments

View All Comments

  • Hal422 - Friday, June 10, 2016 - link

    I tried the 12" iPad Pro with the Logitech Keyboard. Other than adding some weight to it they complement each other like family.

    I really like the paring, the functionality was remarkably like a laptop.

    Having had the new Macbook for a while, I almost could not tell the difference except for the OS differences.

    That aside, I am enjoying the 9.7' very much. It makes the iPad Air seem kind of kulnky in it's performance.

    The screen size is identical to the iPad Air, as the Matt screen protector fit fine when switching them.

    I really wish Logitech would reproduce the Logi Create for the little guy.

    The sound on the 9.7" is at least 3 times as loud as the iPad Air, and very welcome.
    The sound was deeper and better defined on the 12" Pro for the obvious size reasons.

    I use the little iPad Pro daily and am trying to figure out who would best like to have my old iPad Air.

    I am trying to like the Apple Pencil but there are some "Loss of Connection" issues and the Battery life lasts only around 2 days. There is no way to tell how low the battery on the Apple Pencil is getting until it quits on you. Come on Apple, you can show it with your Magic TrackPad. It would be nice to have an on and off switch on the Pencil as well.

    I find myself using an old fashioned capacitive rubber stylus as it is always ready to use.

    I have enough Win 10 devices to compare it to but Windows 10 is too buggy and nosey to use.

    For my money I'm sticking with Apple for work and play.
  • alexb1 - Friday, June 24, 2016 - link

    I got the 12.9" iPad Pro at work, and I absolutely HATE IT! It has ZERO use case for anyone who doesn't wanna draw on the iPad, and the size alone makes it completely poitnless. IF I wanted to carry a larger device with keyboard, WHY would I pick this iPad pro vs. a MacBook? or a Surface? There's zero added business value. iPad's selling point was its portability, ease of use, getting to your data quickly and not needing a keyboard... ALL of that is negated in the 12.9" ridiculous size.

    Now, I might get this iPad Pro, IF it was cheaper, as the price is absolutely outragous! Specially when someone add the Pencil and keyboard cost to it. It should have replaced Air 2, and should have been $100 cheaper and then it'd be the iPad of choice. It still doesn't offer any compelling reason for me to get rid of my iPad Air.
  • ragingfighter - Wednesday, July 13, 2016 - link

    I agree there are definitely a lack of reasons for even me to consider an upgrade. If you have a generation one or two of the iPad Air you really don't need this device and less if you're opting for the better camera the under the hood performance increases and/or the true town display technology If you can live without this features this is definitely not for you. The assessories are or something that I do not consider too much. I consider it it's still a tablet and anything else is additional bogging down the base price
  • ragingfighter - Wednesday, July 13, 2016 - link

    I have sampled this tablet and I think it is really good I put it through its paces and it does keep up in general quite well. That being said though I still think you are an owner of the iPad Air generation one or beyond this is not necessarily an absolute need to upgrade. Unless if your iPad is your primary portable device which in some cases there are people that have them in this manner and have no laptop then you'll want the absolute best power and either you or go for this model or the higher 12.9 inch model. In this generation it's a conflict thing thing as this is why their first generations that introduce and actually larger iPad than the 9.7 in this generation it's a conflict thing thing as this is why their first generations that introduce and actually larger iPad than the 9.7 tier. If you are an iPad owner that has an iPad generation four or below and this may something to consider or even a second-generation iPad Air 2 myself I still think if you can get the iPad Air generation one for a good price it's more than I wore the tablet and you can save money beyond all the other models if you can pick it up for good price. You take a look at the upgrade path and it's Swithin mid tier of what apple has in their upgrade line iOS 10. Still have some time in it and it's still a very where the tablet. I don't think you could go wrong either way with that one or beyond

Log in

Don't have an account? Sign up now