LG 29EA93—Display Uniformity

Display Uniformity is where I am really worried about the LG 29EA93. It has a wider panel than anything typically produced, which means a whole new backlighting system than has been used before; that can easily lead to irregularities compared to a 16:9 panel. The ANSI uniformity test using a 5x5 grid was truly revealing when looking at the white uniformity on the 29EA93.

With the center set to 200 nits, the average of the surrounding zones was a very nice 200 nits, giving you a far more uniform center of the image than any monitor I’ve used to date. The outside edge has an average light level of 193 nits, making it far brighter than most monitors outside edges. Overall the average brightness for all 25 zones was 195 nits, which is the best result in quite some time. For white uniformity, the 29EA93 is truly a cut above.

Black uniformity is excellent as well, with only a couple spots that are a bit brighter than other zones, but an average result across the display of 0.19 nits with a center of 0.186 nits. The two lower corners have a bit of backlight bleed that is visible when a black screen is up and they measure the worst of anywhere on the screen. Overall, even when the different ratio isn’t accounted for, the 29EA93 scores quite well here.

Contrast uniformity is just excellent on the whole. Only one zone out of 25 falls below 950, and 22 of the zones are above 1000:1. The average contrast ratio for the whole screen is 1046:1 and is a really superb overall number for an IPS panel. I would say that the LG is one of the more uniform panels I’ve tested to date, with contrast ratios that are better than most displays on the whole.

Color Uniformity is also quite good, other than the lower-right corner, which is where there is the most visible backlight bleeding on the display. The average dE across the whole display is a solid 1.87, and the worst corner is only 2.63 as well.

LCD Color Uniformity

Overall, the LG 29EA93 is the most uniform consumer monitor I have tested to this point and does a remarkable job overall. I was worried at first that the different aspect ratio might lead to worse performance in this area, but it seems that whatever LG had to engineer for this works remarkably well and produces an overall uniform image across the whole display.

LG 29EA93 - Color Quality and Color Gamut LG 29EA93 - AV Use and Calibration
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  • Visual - Tuesday, December 11, 2012 - link

    People complaining from the 16:9 vs 16:10 or 16:10 vs 4:3 are not complaining just based on aspect ratio. Actually everyone would like a wider display and not complain... if it really were wider. Unfortunately manufacturers often accomplish these wider ratios by cutting out vertical space instead of by adding horizontal space.

    With this display we do have added horizontal space over a regular 1080p display. So I do not expect anyone to complain... Unless this is priced to compete with 2560x1600 displays instead of with 1080p displays, in which case, yea, it is a no-go.
  • Rick83 - Tuesday, December 11, 2012 - link

    Price is quite disconnected the number of pixels.
    With this display being so uniform, it's reasonable to add a premium to the price.
    Additionally, there's a bit of exclusivity thing going on, with only two screeen manufacturers marketing that panel.
  • Strunf - Tuesday, December 11, 2012 - link

    I complain and I complain cause of the aspect ratio, my office desk doesn't have unlimited space, if I allocate 50cm for the screen then I'll lose screen area when I move from a 16:10 to a 16:9, on a 4:3 screen I could easily open a page on Office and see everything now I always have to scroll up and down same with web-pages, the ribbon thing on Office doesn't help either!
  • Galcobar - Tuesday, December 11, 2012 - link

    I must agree with Visual.

    The complaint with the transition to 16:9 was not about the aspect ratio. Rather it was that the transition was accomplished by shrinking the height and thus the screen.

    Had the 16:9 panels been introduced at a resolution of 2133x1200, it's unlikely there would have been much complaining.

    These 21:9 panels are presented as an expansion of the existing standard; you're not losing display area unless you're transitioning from a 2560x1440 monitor which usually costs half-again as much.

    If 1080 is an acceptable vertical resolution for you, then this screen offers the opportunity to expand horizontal coverage (run a 16:9 game/movie window and keep other information visible) without using up all your desk space or dealing with two bezels right in the middle of your field of view.
  • peterfares - Wednesday, December 12, 2012 - link

    It's priced to compete with 27" 2560x1440 screens. This is 2560x1080. They chopped off some vertical resolution, they didn't add horizontal resolution.
  • piroroadkill - Tuesday, December 11, 2012 - link

    " the film was more enjoyable when freed from black bars that distract from the film at hand. "

    Really? Black bars are distracting? Sounds like have ADHD or something.

    Then what are you going to do when the movie isn't in that specific ratio? Because plenty aren't. Goodness me, of all the complaints I've heard, that's a poor one.
  • Penti - Tuesday, December 11, 2012 - link

    You would probably need to have OCD to really be bothered by it. I'm sure most with ADD or ADHD wouldn't be. You would need to have an actual anxiety related syndrome to be really bothered by it. Not raging out for loosing a match in CS in front of their computers.

    I guess you must have Tourrett syndrome for yelling out insults? Well it's the internet. So..

    There is a field and a small market out there for people who want something close to 2.35:1. There is plenty of content produced in anamorphic wide screen or within that 2.35-2.40 range. Is a matter of preference for some and obviously the reviewer didn't think it hit the mark with this one. It isn't unreasonable that it should work in it's intended aspect ratio. There is some interest in this kind of monitors. Obviously on a 2.37:1 screen like this it would be letterboxing all around a 2.35 film that isn't custom cropped. It would just be at the top and bottom on a 16:9/10 or 4:3/5:4 screen. Here it would also have bars on the sides giving you an much smaller effective viewing surface. Much worse so then a 1.85:1 or 16:9 movie. The real advantage is only there if you can crop the movie to fit the screen, otherwise 2:35:1 content is just unusable.
  • nathanddrews - Tuesday, December 11, 2012 - link

    What this is, effectively, is an attempt at CIH for direct-view displays. More and more projectors are beginning to adopt this feature or allow for CIH lenses (usually above the $2,500 mark), but the same problems exist there. You have to adjust for pillarboxing instead. I much prefer pillarboxing to letterboxing. Of course, with CIH projection, you never lose 1:1 mapping.

    The downside to all of this is that all 1080p films on Blu-ray are 1920x1080 resolution for the video streams including the black bars. So when you blow up a 2.35:1 image on a native XXXXx1080 display, you no longer have a true 1:1 resolution, so you need a high-quality scaler to avoid artifacts. ~1920x800 would be better suited to this, but obviously then you would lose resolution for 1080p 16x9 and 4x3 content.

    I really like the wider screen for gaming, but you can achieve the same horizontal resolution with a standard 30" monitor, but gain vertical res as well.
  • cheinonen - Tuesday, December 11, 2012 - link

    I also am probably one of the targets for this monitor, as my home theater uses a 2.40, 122" screen, so I'm very familiar with all the reasons for anamorphic screens, as well as the issues that can arise in the setup of them. It's really about the choice of Constant Image Height over Constant Image Width, where both are going to have compromises for the viewer. For those that want a CIH setup, a 21:9 monitor offers something that is very expensive to do with a projector (a high-end anamorphic lens is thousands of dollars alone), but still has flaws of course.
  • wwwcd - Tuesday, December 11, 2012 - link

    Too short and fat. These manufacturers and marketing managers are arrogant!

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