Display

Chromebooks are typically aimed at buyers with a small budget, and many of the early generations used the same 1366x768 TN displays that were offered in low end Windows laptops. However, the advancement of display quality on both laptops and tablets has made the prospect of a high resolution IPS panel in an inexpensive device a reality. The Toshiba Chromebook 2 is an example of this, with a well calibrated 1080p IPS display in a $329 package.

Unfortunately, in order to implement their durable design and protection from spills, dust, and other hazards, Dell has had to take a step down with the display quality relative to other Chromebooks at the same price point. The Dell Chromebook 11 uses an 11.6" 1366x768 TN display. While the use of a lower resolution TN panel may be disappointing, it's still possible to have good brightness, contrast, and color reproduction on a TN display. To evaluate display attributes beyond the resolution, we use X-Rite's i1Pro 2 spectrophotometer and SpectraCal's CalMAN 5 software.

Display Brightness - White Level

Display Brightness - Black Level

Display Contrast Ratio

CalMAN - White Point Average

Unfortunately the Dell Chromebook 11 doesn't get off to a great start. Peak brightness is nothing spectacular, and it can be difficult to use the display outside or in an environment with heavy lighting due to the reflections on the glass. Black levels are far too bright at 0.61 nits, and this leads to a very low contrast ratio of 441:1. In addition, the display has an average white point of 12410, which makes it one of the bluest displays we've ever tested. This can be seen in more detail in the greyscale error results later on.

CalMAN - Gamut Average dE 2000

The display does exceptionally poorly when it comes to gamut accuracy. You can still get a deltaE around five even if you have a narrow gamut that covers around 60% of sRGB. It's clear that the backlighting in the Dell Chromebook 11 is very poor, as it misses even the green primary in addition to all the other primary and secondary colors. 

CalMAN - Saturations Average dE 2000

Saturations are all over the place with the Dell Chromebook 11's display. Many of the colors do not even follow a linear progression of saturations and instead tend toward another color as the saturation increases. Due to the gamut accuracy, 100% blue ends up falling outside of the sRGB gamut entirely.

CalMAN - Grayscale Average dE 2000

Going forward in 2015 I've decided to start putting CalMAN's color comparator back into reviews. This was used in a few reviews from the distant past, most of which were part of our laptop coverage. I think it's a good tool to give a visual representation of what a deltaE value actually means, as the degree of error for a given deltaE can be abstract and hard to visualize. It's important to note that this image only shows the relative error between the target and measured results, as any errors in your own display will cause errors in the target shades displayed on the bottom half of the bars in the image.

With a greyscale deltaE of over ten, the Dell Chromebook 11 is wildly inaccurate when displaying any shade of grey that isn't essentially pure black. With a lack of red and surplus of blue components of luminance, there's a heavy blue tint to essentially every shade of grey. Gamma is also too high, but would be surprisingly accurate if one was targeting a gamma of 2.4.

CalMAN - Gretag Macbeth Average dE 2000

The colorchecker test has an error of similar magnitude to that of the greyscale test. The deltaE is approaching ten, and every color is rendered completely incorrectly. Both the inaccurate greyscale and the display's narrow native gamut also contribute to this. Because of the gamut, many of the color mixtures of high saturation are rendered as much duller and less saturated colors.

I'm honestly very disappointed with the Dell Chromebook 11's display. I had thought the industry had moved past TN displays, with even the $99 HP Stream 7 sporting an IPS panel. With poor viewing angles, a low resolution of 1366x768, and poor color reproduction, the display on the Dell Chromebook 11 really has no redeeming values. It's especially disappointing when compared to the equivalently priced Toshiba Chromebook 2 which does very well in all of our tests and has a much higher resolution of 1920x1080 on a slightly larger 13.3" panel. Display quality was definitely put on the chopping block in order to allow for the Dell's rugged construction, but even if you require the rugged build it's still hard to argue that the compromise is worth it.

Introduction and Design Web and WiFi Performance
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  • damianrobertjones - Thursday, May 7, 2015 - link

    "16GB eMMC"

    ...and it fails again. Like 1366x768 on a windows machine... Why? It's your money so there you go.
    Reply
  • cjb110 - Thursday, May 7, 2015 - link

    and again failure to understand what chromebooks usage is. You will not be storing any documents on it, you don't need to. Reply
  • Michael Bay - Thursday, May 7, 2015 - link

    Please forgive him for not understanding how useless machine can be used. Reply
  • shing3232 - Thursday, May 7, 2015 - link

    it is just a netbook. Reply
  • SunLord - Friday, May 8, 2015 - link

    I have a Acer 720p running Linux via crouton which makes it pretty nice little laptop for $330 kick it upto $400 if you add a 128gb ssd since it's got an m2 sata port vs shitty on-board emmc. It's not super powerful but it's small light and more then enough Reply
  • BackInAction - Thursday, May 7, 2015 - link

    Storage is a non-issue on a Chromebook. However, the display on many (most) have poor resolution (1366x768) and horrible off-axis viewing.

    That said, the Toshiba 13 Chromebook is used more than any other "computer" at my home outside of smartphones.
    Reply
  • leexgx - Friday, May 8, 2015 - link

    its the 2GB option that is the problem, 4GB Chromebook will pretty much does not slow down but on 2GB (none upgradeable chromebook acer 720 that i have) it can run out even with small number of tabs open (google could learn something from Firefox as in do not Load the tabs until they are clicked on)

    and i would not hold to much about the hinge on this chromebook if its using the same one as the STUDIO dell laptops use (not very strong)
    Reply
  • leexgx - Friday, May 8, 2015 - link

    and to add its using a ATOM CPU (N2840) so its slower then a acer 720 (cut down i3 > 2955U) i would avoid any chromebook that has a ATOM (N cpu) or ARM based cpu in it as they are not very good at handling complex pages and the GPU has problems with 1080p60 or even just 1080p (the ARM CPUs have problems with just 720p) Reply
  • milkod2001 - Thursday, May 7, 2015 - link

    An the winner of the ugliest and thickest 2015 laptop is: Dell Chromebook 11 Touch.

    Competition was very tough but Dell's Chromebook 11 Touch had edge with its storage(whooping 16GB eMMC),screen(1366x768) options and with amount of rubber...
    Reply
  • Essence_of_War - Thursday, May 7, 2015 - link

    My fiance picked up a haswell 2955U Dell chromebook 11, and we are both really happy with it, seeing as it uses the same CPU as the Acer C720, it looks like this re-design has pretty substantial drop in performance with the exception of the addition of AC wireless. Reply

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