Sign in with
Sign up | Sign in

Measurement And Calibration Methodology: How We Test

AOC Q2963PM Monitor Review: 2560x1080 Is A New Way To Play
By

To measure and calibrate monitors, we use an i1Pro spectrophotometer and version 5.1.2 of SpectraCal’s CalMAN software.

For patterns, we employ an AccuPel DVG-5000 video signal generator. This approach removes video cards and drivers from the signal chain, allowing the display to receive true reference patterns. Connections are made via HDMI.

The AccuPel DVG-5000 is capable of generating all types of video signals at any resolution and refresh rate up to 1920x1080 at 60 Hz. It can also display motion patterns to evaluate a monitor's video processing capabilities, with 3D patterns available in every format. This allows us to measure color and grayscale performance, crosstalk, and ghosting in 3D content via the 3D glasses.

The Test EnvironmentThe Test Environment

The i1Pro is placed at the center of the screen (unless we’re measuring uniformity) and sealed against it to block out any ambient light. The Accupel pattern generator (bottom left) is controlled via USB by CalMAN, which is running on the Dell XPS laptop on the right.

Our version of CalMAN Ultimate allows me to design all of the screens and workflows to best suit the purpose at hand. To that end, we’ve created a display review workflow from scratch. This way, we can be sure and collect all the necessary data with a concise and efficient set of measurements.

CalMAN 5 Ultimate: Grayscale Screen CalMAN 5 Ultimate: Grayscale Screen

The charts show us the RGB levels, gamma response, and Delta E error for every brightness point from zero to 100 percent. The table shows us the raw data for each measurement. And the area in the upper-left tells us luminance, average gamma, Delta E, and contrast ratio. The individual charts can be copied to the Windows clipboard to easily create graphics for our reviews.

CalMAN 5 Ultimate: Color Saturation Sweep  ScreenCalMAN 5 Ultimate: Color Saturation Sweep Screen

Every primary and secondary color is measured at 20, 40, 60, 80, and 100 percent saturation. The color saturation level is simply the distance from the white point on the CIE chart. You can see the targets moving out from white in a straight line. The further a point is from center, the greater the saturation until you hit 100 percent at the edge of the gamut triangle. This shows us the display’s response at a cross-section of color points. Many monitors score well when only the 100 percent saturations are measured. Hitting the targets at the lower saturations is more difficult, and factors into our average Delta E value (which explains why our Delta E values are sometimes higher than reported by other publications).

Ask a Category Expert

Create a new thread in the Reviews comments forum about this subject

Example: Notebook, Android, SSD hard drive

Display all 60 comments.
This thread is closed for comments
  • 1 Hide
    Simos Kozanidis , August 25, 2013 11:23 PM
    Does it tilt?
    Having 2 in chain of those, tilted on the side, would be very nice for productivity apps, like coding, etc.
  • 2 Hide
    eddieroolz , August 26, 2013 12:21 AM
    Good to see 21:9 monitors come down in price. I don't ever watch movies so the width is no use for me, though what I'd like to see in the future is a vertical VESA mount to stack 2 of these monitors in the vertical orientation. That would result in a 2560x2160 resolution that would be great for productivity purposes.
  • -2 Hide
    cobra5000 , August 26, 2013 12:22 AM
    If only it was 21:10.
  • -1 Hide
    giovanni86 , August 26, 2013 12:33 AM
    I'm actually in the market for the LG 21:9 primarily for gaming. Though i was disappointed that the veritcal length is smaller then others. Its still a very nice display. Looking forward to buying it and playing BF4 on it :) 
  • -3 Hide
    christop , August 26, 2013 4:45 AM
    I would like to try gaming with 3.
  • 2 Hide
    ubercake , August 26, 2013 5:43 AM
    Seems like a good choice for an RTS/MMORPGer. The input lag of the IPS panel is still going to keep me away from using something like this for shooters.
  • 0 Hide
    vertexx , August 26, 2013 6:15 AM
    With the multiple sources, does it force a 50-50 split or is that adjustable?

    I currently run two PCs for my daily work and could probably use something like this. Two 1080p monitors side by side is too much back and forth, so this may be a good solution. But I'd want to be able to adjust the split between the sources if needed.

    Thanks!
  • 0 Hide
    cknobman , August 26, 2013 6:43 AM
    I know no one wants to hear this and I will be instantly down voted but this resolution seems ideal for Windows 8 Metro/Modern interface.

    Everything in Windows 8 Metro/Modern is designed for horizontal screen orientation vs. vertical.

    Besides that point this monitor seems like a great piece of hardware for the money. Nice review!
  • -1 Hide
    major-error , August 26, 2013 6:49 AM
    Quote:
    Good to see 21:9 monitors come down in price. I don't ever watch movies so the width is no use for me, though what I'd like to see in the future is a vertical VESA mount to stack 2 of these monitors in the vertical orientation. That would result in a 2560x2160 resolution that would be great for productivity purposes.

    What you're looking for comes from Ergotron: http://www.ergotron.com/ProductsDetails/tabid/65/PRDID/15/language/en-US/Default.aspx
    I have this stand holding up a pair of Dell U2412M displays. My only real concern when hanging displays on this stand is the panel weight, although I bet the bottom-mounted of a pair of 27" 16:9 displays would end up touching the desk...
  • -1 Hide
    nekromobo , August 26, 2013 6:55 AM
    You totally forgot to compare it to Dell U2913WM for little more there's 3years NBD warranty etc.. not to mention how does it compare picture-wise? Probably same panel used on both.
  • 5 Hide
    InvalidError , August 26, 2013 9:03 AM
    Quote:
    what I'd like to see in the future is a vertical VESA mount to stack 2 of these monitors in the vertical orientation. That would result in a 2560x2160 resolution that would be great for productivity purposes.

    1080 lines is too little for (advanced) productivity IMO.

    For things like programming and browsing, I would be much happier with 2560x1600 on a 24" screen in portrait mode + 1920x1200 on a 20-24" landscape secondary display than 2x 2560x1080 29" in landscape.
  • 0 Hide
    clonazepam , August 26, 2013 9:32 AM
    The only thing we're missing here is some youtube video goodness of someone "cam-ing" this thing in use. Like switching modes between single source and 2. How quickly does it switch between modes?

    As far as gaming goes, I'd never opt for this. As has been mentioned, the input lag may be irritating for some. Also, would you have to tweak a game's field of view setting, if it has one, to make the most of it?
  • 1 Hide
    Charles Cox , August 26, 2013 10:16 AM
    Any idea how this compares to the Dell UltraSharp U2913WM? I'm actually finding it quite difficult to find accurate comparisons between them, especially with regards to input lag.
  • 0 Hide
    dennisburke , August 26, 2013 10:48 AM
    This is a great aspect ratio for watching movies or gaming, but the vertical height is about 2 inches less than my current 27" 1080p monitor, which is a no go for productivity. To get the vertical height back up to my current 13.25 inches, the 21:9 monitor needs to be a minimum of 34 inches...I think that would be a sweet monitor.
  • 0 Hide
    blackdragonx1186 , August 26, 2013 11:14 AM
    I own and use Dell's variant of the 21:9 monitor. For gaming, it is amazing. Although, there are a lot of games that don't fully support the resolution, so in certain menus things can be chopped or cropped wrong. Skyrim doesn't work at this res, but Oblivion does, which is interesting. Great aspect for what most of us will use them for; games, and movies.
  • 0 Hide
    ubercake , August 26, 2013 11:24 AM
    Quote:
    This is a great aspect ratio for watching movies or gaming, but the vertical height is about 2 inches less than my current 27" 1080p monitor, which is a no go for productivity. To get the vertical height back up to my current 13.25 inches, the 21:9 monitor needs to be a minimum of 34 inches...I think that would be a sweet monitor.


    Quote:
    I own and use Dell's variant of the 21:9 monitor. For gaming, it is amazing. Although, there are a lot of games that don't fully support the resolution, so in certain menus things can be chopped or cropped wrong. Skyrim doesn't work at this res, but Oblivion does, which is interesting. Great aspect for what most of us will use them for; games, and movies.


    Skyrim menus were messed up for me across 3 screens too.
  • 0 Hide
    g-unit1111 , August 26, 2013 12:26 PM
    21:9? Ultra HD? Less than $500??? Count me in! :ouch: 
  • 0 Hide
    tpbutch , August 26, 2013 12:58 PM
    This review was so timely for me. I had been eyeing this thing on Amazon for the past week. Today, the price is down to $400. No-brainer for my needs.
  • 3 Hide
    none12345 , August 26, 2013 1:32 PM
    The 1080 is a bit too small, 1200 would be better(1440 seems too large but ive never used that screen height, so duno). Black bars on movies dont bug me, id rather have the extra space for everything else i do on a pc. Seems to make a lot more sense to turn off part of the screen because you dont need it, then not have it there at all when you do need it.

    What id really like tho is 200 dpi ~24"/~12" viewable area(27" viewable diagonal), with a slight curvature. ~4800x2400, ~120 hz. And the graphics card to drive it in next gen games at 120fps. Let me know when we have that.
  • 1 Hide
    bee144 , August 26, 2013 1:39 PM
    This really isn't any better for playing games than my 2560x1440 monitor is it?
Display more comments