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Results: Viewing Angle And Uniformity

AOC I2757Fh And ViewSonic VX2770Smh: Two 27" IPS Monitors
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The biggest advantage of IPS panels is their excellent off-axis viewing performance. There is very little degradation in both brightness and color accuracy until you’re well past the 45-degree mark. The photo below shows a 100 percent white field from five different angles.

AOC I2757FHAOC I2757FH

We can see no perceptible difference between the AOC and ViewSonic monitors. Again, since they use the same LG panel, this is an expected result.

Arguably, these shots are the best reason to buy an IPS monitor. Off-axis image quality is excellent with only a slight falloff, and none of the color shift you'd see from a TN-based screens. Again, to do better, you'd have to use a plasma or CRT monitor.

Viewsonic VX2770SmhViewsonic VX2770Smh

While some monitors are better than others, all LCD panels have some degree of screen uniformity issues, and even samples of the same model can have quite a bit of variation. So, since there’s no solid standard for applying a rating to different panels, we’ll simply present the results of our measurements.

Both the AOC and ViewSonic monitors measure quite well, with only small differences in brightness from corner to corner. Zero percent and 100 percent fields are used, and nine points are sampled.

AOC I2757Fh
Black Field Uniformity (cd/m^2)
.1304
.2491
.3576
.2600
.2330
.1864
.3339
.3163
.1025
White Field Uniformity (cd/m^2)
193.7727
205.1259
195.1854
185.4980
209.0425
204.3085
191.1678
192.7434
203.4475
ViewSonic VX2770Smh
Black Field Uniformity (cd/m^2)
.1451
.1587
.1798
.2218
.2783
.1221
.5080
.1656
.2106
White Field Uniformity (cd/m^2)
171.0105
191.2719
159.7328
185.5074
201.0192
160.4003
193.1757
185.7181
181.6170


In a full-white field, the ViewSonic encounters slightly visible dark areas on both sides of the screen, though they’re imperceptible at lower brightness levels. A small bright spot is also evident in the lower-left section in a full-black field. Meanwhile, the AOC looks basically perfect to the naked eye.

Bear in mind, though, that different samples can appear and measure differently. So, by no means should this be taken as an absolute judgement.

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  • 22 Hide
    Anonymous , January 16, 2013 3:25 AM
    1920x1080?

    Next.
  • 25 Hide
    kinggremlin , January 16, 2013 3:41 AM
    Unless you're legally blind, why would anyone want a 27" 1920x1080 monitor? I still don't get why one industry thinks we need 1920x1080 on a 5" cell phone, while another thinks 1920x1080 is all the resolution you'll ever need no matter how big your screen.
  • 26 Hide
    Nintendo Maniac 64 , January 16, 2013 3:44 AM
    In other news, Micro Center and Monoprice have 27" monitors @ 2560x1440 for just under $400, both of which are based off the inexpensive 27" Korean monitors but come with a US warranty:

    Micro Center - AURIA EQ276W 27" IPS LED Monitor @ $399.99
    Monoprice - 27" IPS LED CrystalPro Monitor WQHD @ $390.60

    Surely that's the comparison readers really want to see. Get on it Tom's!
  • 10 Hide
    jupiter optimus maximus , January 16, 2013 3:52 AM
    I bought myself Achieva Shimian QH270-Lite on ebay and it is a 2560x1440 monitor with 6ms response time. Its basically a rejected apple monitor with no frills and no warranty (sold in Korea for $200). I doubt monitor manufactures will release 2560x1440 monitors at mainstream prices within the end of this year, as Intel predicted. Or 4k monitors by 2015.

    Here are some links to sites dedicated to these 27" 2560x1440 monitors:

    http://www.overclock.net/t/1215866/reviewed-400-2560x1440-ips-no-ag-90hz-achieva-shimian-qh270-and-catleap-q270
    http://hardforum.com/showthread.php?s=555ec44784c7ce14633a870f574d2b48&t=1675393
    http://www.overclock.net/t/1228062/achieva-shimian-monitor-club

    If you you would like to know more how your graphics card, monitor perform on 1440P and above resolution with certain games, go to to this link:

    http://www.overclock.net/t/1291882/1440p-and-above-gaming-club-1440p/0_100
  • 1 Hide
    grokem , January 16, 2013 3:55 AM
    Thanks for the review. These do look like very good choices for those that don't need a gaming monitor. No offense to this review as I do think it serves a purpose and will be useful to many. However, I think I'm going to quit reading monitor reviews for a couple of years. Maybe by then my 15 year old monitor and my 10 year old ~$500 LCD will be surpassed by something new and better.
  • 0 Hide
    Nintendo Maniac 64 , January 16, 2013 4:01 AM
    Quote:
    However, I think I'm going to quit reading monitor reviews for a couple of years. Maybe by then my 15 year old monitor and my 10 year old ~$500 LCD will be surpassed by something new and better.

    They already have been surpassed, but the tech is expensive currently:
    Sony PVM2541 25-inch Professional OLED Picture Monitor
  • 13 Hide
    bavman , January 16, 2013 4:23 AM
    Pass. 27'' is way to big for 1080p, needs 1440 at the minimum.

    Manufactures need to stop making 1080p monitors. With 4k around the corner, it should be at least 1440 or 1600 now. Were not gonna get anywhere until someone finally starts to really mass produce higher res monitors
  • 7 Hide
    abbadon_34 , January 16, 2013 5:31 AM
    Remember when CRT's supported tons of resolutions and refresh rates, more than most could handle? Then trendiness and HDCP got in the way.
  • 6 Hide
    zander1983 , January 16, 2013 5:58 AM
    Nintendo Maniac 64They already have been surpassed, but the tech is expensive currently:Sony PVM2541 25-inch Professional OLED Picture Monitor


    Still 1080p, pass.
  • 2 Hide
    Nintendo Maniac 64 , January 16, 2013 6:41 AM
    Quote:
    They already have been surpassed, but the tech is expensive currently:
    Sony PVM2541 25-inch Professional OLED Picture Monitor

    Quote:
    Still 1080p, pass.


    It's a 24" monitor, what did you expect? (they market it at 25" but it's really 24 5/8")

    If they come out with a 27-30" monitor, surely it'd be 2560px wide since they are professional-level displays.
  • -3 Hide
    merikafyeah , January 16, 2013 8:09 AM
    Nuts to that1920x1080?Next.

    I don't see many people complain about their 60" 1080p TVs.
    60" is waaay bigger than 27". Maybe sit just a tiiiiiiiny bit further from your screen?
  • -2 Hide
    hytecgowthaman , January 16, 2013 8:36 AM
    5Ms aoc is good for gaming monitor at low cost.
    please put the information how much mhz it can handle (to compare good gpu for that) .
    15" aoc run at 300mhz in aoc monitor software.
  • -3 Hide
    hytecgowthaman , January 16, 2013 8:40 AM
    Aoc monitor low cost and 5ms but viewsonic 7Ms and high cost. but both give 3year warranty.
  • -7 Hide
    redgarl , January 16, 2013 10:37 AM
    PC monitors are a dying bread for the common home user. I switch to an HDTV with 120Hz... the only drawback is input lag... man I didn't see this one comming especially at 1080p.

    It's not bad at all for single player games, but if you play Counter-Strike intensively, maybe not a good idea. But anything other than FPS online is not a real matter.

    Get a good Samsung HDTV and get rid of the office. There is some awesome logitech products for input device that let you transform your desktop into a gaming HTPC.
  • 3 Hide
    wanderer11 , January 16, 2013 1:08 PM
    I just got an Auria 2560x1440 two weeks ago and I could never go back to 1920x1080 now.
  • 4 Hide
    techbaddie , January 16, 2013 1:45 PM
    I also just got an Auria 2560x1440 last week, and I could never go back to 1080 either. The Auria dominates! Shreddder style
  • 1 Hide
    EDVINASM , January 16, 2013 2:32 PM
    Didn't know this site was full of tech gurus with deep pockets. I will go for this 27" never mind that it's "only" 1080p - I need TV replacement and this will do just fine, especially being IPS panel for such a low cost. Heck even my ASUS 278Q or whatever model is dearer. Any 2560x1440 monitor that is not made in meat factory would cost nearly twice as much so.. Until 4k becomes standard I am fine with 1080p.
  • 2 Hide
    truprecht , January 16, 2013 3:01 PM
    I bought myself an Auria for Christmas - it's awesome. Huge, bright, crisp, and not one dead pixel. For $300 less than DELL/HP and $600 less than Apple's product using the same LG IPS panel.
  • 0 Hide
    nukemaster , January 16, 2013 3:14 PM
    Can anyone with those Auria screens comment on if they have noticeable off angle glow?

    Image of an Asus(I know it was e-ips, but it was BAD, even TN did better then this thing. This was MAX bright vs 26% on the other screen) I had next to a Samsung S-PVA. The glow was extreme even at slight angles and the card color reproduction was just awful.
    http://imageshack.us/a/img441/4199/dsc0262dr.jpg
    http://imageshack.us/a/img600/7891/dsc0252jn.jpg
  • -1 Hide
    chumly , January 16, 2013 3:20 PM
    ....or spend the same money on a 1440p LG panel by one of the thousands of manufacturers out of Korea or China (or Overlord here in the states) instead of wasting your money on old, out-dated tech.
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