Color Consistency

Building on the 5-point testing we did in the Dell U2711 review, we’ve added testing at 9 different points across the LCD. To test this, we take our best center calibration profile and then test Delta E performance at 9 different places on the display.

We’ve seen before how localized calibration profiles are on the G2410H, and the X270W is no exception. Performance at other points on the monitor simply differs, and gets on average 0.75 Delta E worse at any given point that isn’t dead center. There’s obviously partially the backlighting uniformity to blame, but we’ll show later that it doesn’t quite match this circular falloff of Delta E performance we’ve measured.

Tracking is reasonably acceptable along the edges, but does average 2.42 as opposed to our relatively stellar 1.67 performance at the center.

Analysis: Color Quality Analysis: Brightness and Contrast
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  • HollyDOL - Tuesday, May 18, 2010 - link

    I really wonder whether this screen contains true 8bit per channel mask or whether it uses dithering to fake it...

    Usualy, TN panels are just 6bit per channel and remaining colours are faked using dithering or frame rate control.
    Reply
  • Brian Klug - Tuesday, May 18, 2010 - link

    I wonder that too, and in all honesty it's likely 6-bit and dithered like you said.

    I'm still trying to figure out a good way to test - displaying the color pattern works, but there's still some dithering on even the highest end stuff I can find. Still trying to get to the bottom of it.

    I'm open to any ideas though! ;)

    -Brian
    Reply
  • Luke212 - Tuesday, May 18, 2010 - link

    the Sony G520 does 1024x768x120Hz. I recently bought one for $20 so i'm sure you can find one to test Reply
  • Luke212 - Tuesday, May 18, 2010 - link

    sorry, btw the g520 is VGA not DVI. i also had no luck finding a dvi crt. Reply
  • RavnosCC - Tuesday, May 18, 2010 - link

    I needs me some high hrz gaming! Reply
  • Brian Klug - Wednesday, May 19, 2010 - link

    They're definitely coming ;) I'm working hard on getting a number of 120Hz panels in for reviewing pleasure ;)

    Stay tuned!

    -Brian
    Reply
  • jaydee - Tuesday, May 18, 2010 - link

    Count me among those dissapointed in the resolution. That big has got to be at least 1920x1200. I know it's cheap, but would it really add that much cost?

    I bought a 20.1" Sceptre LCD above 4 years ago (for around $350, ughh...), which I'm overall pleased with. The only thing that bothered me, was really dark scenes, there was a fairly noticable criss-cross of light coming from the corners. I've heard the only way to truly avoid this was to get a LED-backlit LCD. How bad was this on the review unit? I didn't see mention of, but maybe you covered it and I'm just not familar enough with the terminology.

    Also, I'd like to see review(s) of some of the ASUS units, namely the VW266h (25.5" 1920x1200 for $250 AR right now) and the above mentioned ASUS MT276HE (27" 1920x1080 for $320 AR).
    Reply
  • theoflow - Tuesday, May 18, 2010 - link

    Hey Anand and crew,

    Really digging all the reviews in the past couple of months and it is definitely helping me steer myself in the right direction for product purchases.

    Although this might delve into a realm that isn't your speciality, I would be very interested in inexpensive 32" LCD review for HTPC usage. I think this is a sweet spot that is neglected quite a bit, with reviews and suggestions jumping to 42" displays way too quickly.

    Keep up the good work and looking forward to whatever is in the review pipeline.
    Reply
  • Brian Klug - Wednesday, May 19, 2010 - link

    Hmmz, there have been more than a few requests for us to take a look at some smaller (well, is 32" small? Small for a TV, large for a monitor, hehe) TVs and profile them against monitors. I've seen an increasing number of friends dropping their computer-LCDs in favor of LCD-TVs, so I think it'd be an interesting thing to take a look at.

    It's definitely something we haven't tackled yet. I've got a 32" Vizio of my own (oh boy, the irony of having such nice LCD displays and then two Vizio TVs - though they've improved significantly as of late) that I could try, hmmz. I'll see what I can fit in! Thanks for the idea/feedback!

    -Brian
    Reply
  • Corporate Thug - Tuesday, May 18, 2010 - link

    Anandtech/Brian, can you please please please review the DoubleSight DS-2700DW...I know a lot of people who are interested in seeing ONE review of this thing. I think at $399, it would be a nice comparison. Reply

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