24" LCD Roundup

by Jarred Walton on May 1, 2008 8:00 PM EST

ASUS MK241H Evaluation

One aspect of any display that can be relatively important is the on-screen display (OSD), which controls functions such as brightness, contrast, aspect ratio, color correction, and other options. The MK241H includes five preset "modes" that tweak the various settings. We generally prefer sticking with the unbiased "standard" preset, as most of the other modes are too bright, too warm, too cool, etc. Still, tastes will vary, so if you're not doing professional image editing you may find that one of the other presets is to your liking. ASUS includes functions in the OSD for all the major areas, though their menu system is not as extensive as for example the Samsung 245T. Then again, sometimes less is more -- we rarely tweak most of the settings that are available and ASUS provides us with everything we need.

You can see the various options available in the menu system in the above gallery. We do have to mention that the OSD buttons are super "clicky" (i.e. they're loud and require more pressure to activate). This is almost the opposite end of the spectrum from the Samsung 2493HM, but we'll take the ASUS style over the "floaty" buttons on the Samsung. Noteworthy items include the "trace free" function that is supposed to improve pixel response time and the options for aspect ratio control. In the case of the former, response time didn't seem to be any better or worse than other LCDs that we've used -- but then we haven't had a problem with gaming on LCDs for the last three years; your mileage may vary.

For aspect ratio control, ASUS provides three options: Full, 4:3, and 1:1. "Full" theoretically stretches whatever resolution you're running to fill the whole screen. "4:3" is for standard aspect ratio resolutions and will leave you with black bars on the left and right sides (even if you happen to be running a widescreen resolution). "1:1" is a direct-mapped mode without any stretching, leaving black bars on all sides (depending on what resolution you're running). Notice how we said "theoretically"? Not all of the normal resolutions work properly with the aspect ratio control, depending on what input you're using. Here's a summary of our resolution testing:

ASUS MK241H Resolution and Input Notes
  DVI HDMI VGA
800x600 Yes Yes Yes
1024x768 Yes Yes Yes
1152x864 Yes Yes -
1176x664 - Underscanned 720P -
1280x720 Yes Yes Yes
1280x768 - Wrong AR (1280x960) Sets 1280x800 and clips top and bottom
1280x800 Wrong AR (1280x960) Wrong AR (1280x960) Yes
1280x960 Yes Yes Yes
1280x1024 Yes Yes Yes
1400x1050 - Wrong AR (1680x1050) -
1440x900 Yes Yes Yes
1600x1200 Yes Yes Yes
1680x1050 Yes Yes Yes
1768x992 - Underscanned 1080P -
1920x1080 Interference/Static Present Yes Clips output to 1680x1050
1920x1200 Yes Yes Yes

The built-in scaler works well on VGA, but the scaling artifacts on digital inputs are horrific. If you have an NVIDIA GPU, you should use the NVIDIA Scaling to avoid this. 1:1 scaling also works for most resolutions/inputs if you don't mind black borders. Otherwise, you'll want to stick to the native resolution when using DVI or HDMI inputs. There were also several resolutions that would not display with the correct aspect ratio (AR) when using HDMI and one resolution had problems with the DVI connection. Out of the five LCDs tested here, the OSD and firmware appears to need the most work on this LCD. Only the VGA input generally works properly and scales well on most resolutions.

Ideally, you always want to run at the native LCD resolution, but sometimes that's not possible -- i.e. for performance reasons you may want to run a game at a lower resolution. Again, if you're using a digital connection -- and we generally recommend the use of a digital connection with LCDs -- the MK241H has severe scaling artifacts when you stretch lower resolutions to fill the screen. You can see what we mean with the following shot of the LCD running at 1440x900.


We're not quite sure why, but the built-in scaler seems to be doing a "nearest neighbor" interpolation on digital signals. This does not occur on VGA connections, where you get a more appropriate bilinear or bipolar scaling. The drawback is that overall VGA connections do not have the clarity of digital connections, and if you switch resolutions frequently, you will have to deal with the "auto calibration" delay at times.

We'll compare Delta E and color gamut scores to all of the other LCDs later in this article, but we wanted to give a quick preview of the color accuracy to make things more manageable. The following chart shows the calibrated and uncalibrated color accuracy using Monaco Optix XR Pro and ColorEyes Display Pro with a DTP94 colorimeter. Below that is a 3D color gamut volume compared to the Adobe RGB 1998 standard, which was generated using Gamutvision, a utility developed by Imatest LLC.




Overall color accuracy is reasonably good, with a few colors that always seem to end up with a much higher Delta E. The average after calibration scores right around 2.0 (~5.5 prior to calibration), and the vast majority of users will have no problems with the MK241H -- or pretty much any other LCD for that matter. Imaging professionals on the other hand may want to look elsewhere. We can also see that in regards to color gamut, the ASUS panel scores very well but it doesn't come anywhere near 130% when compared to the Adobe RGB 1998 standard. So they lied, right? Well, not really... the color gamut also happens to be 140% of the sRGB standard most computers use. The Adobe RGB 1998 standard is for imaging professionals, and applications like Adobe Photoshop make use of it in order to offer better color reproduction.

The bottom line is that the ASUS MK241H is a decent display at a reasonable price. It doesn't top the charts in most areas, and the lack of pivot and height adjustment functionality may be a concern for some users. The scaling problems with digital inputs and lower resolutions is also a pretty serious problem, so without some firmware update to address this we can only recommend the MK241H for people that intend to run only at the native resolution. If you can get past those qualifications and you want an LCD with an integrated webcam, you can find the MK241H online for around $530. There are less expensive 24" LCDs, but if we sound somewhat critical of ASUS trust us: the least expensive 24" LCDs tend to have even more problems. (That's probably why none of the manufacturers want to send them out for review.)

ASUS MK241H Specifications and Appearance Dell 2408WFP Specifications and Appearance
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  • Bolas - Friday, July 31, 2009 - link

    Anand,

    Any chance of a 30" monitor roundup for those of us wanting to buy an extreme HD monitor to go along with the new high end gaming computer we're buying around Christmas time?

    I'm not sure which is best between the stuff currently on the market (or things coming out in the near future, say by Christmas). I've heard of:

    Dell 3007WFP
    Dell 3008WFP
    HP LP3065
    Gateway XHD3000
    Samsung Synchmaster 305T
    Apple Cinema 30"

    Am I missing any 30" monitors currently available? Which is the best, regardless of price? Which is the best in terms of bang-for-the-buck? Which is "future-proof", with good connectivity? I plan to use it to play Starcraft II and Warcraft III and maybe some Everqeust.

    I just turned 40, so as part of my mid-life crisis, I'm buying a high end gaming computer, probably a CyberPower Black Mamba or a Digital Storm of some kind, depending on how the stock market does.

    Basically an overclocked Core i7 with three-way or quad SLI. My computer budget is $4000 to $6000, not including monitor price, and I can get a nicely configured Cyberpower for about $5400 last I checked. But what to use to display all that computer goodness? I figure to spend $1000 to $2000 on a 30" monitor, but which one?!?

    Thanks!
    -Bolas
  • szore - Tuesday, June 23, 2009 - link

    I bought this for about $269 free tax and shipping and I love it for gaming.
  • jpp - Monday, September 15, 2008 - link

    Hi,

    First of all a big thank you for these reviews - they are top notch.

    I'm currently trying to decise between the Samsung and the Dell. I'm not into gaming, so latency doesn't bother me. Nor for that matter do the plethora of inputs both provide - I'll just be using with the one DVI input at native resolution.

    Living in PAL country, I would be delighted if either of these monitors do 50Hz FR. I doubt it very much, but thought it worth asking. I know that my large Samsung 405T wasn't specified at 50Hz, but it is able to do it natively nevertheless which makes for judder free PAL DVD and FTA TV program watching on the screen.

    So, apart from this probably undefined/untested aspect, which would be the better choice, given as I say that I am not interested in gaming?

    I bring this comparison up here as this review does not list the Samsung in its comparison table. The Dell was the editor's choice, but the Samsung was reviewed after this 24in line up, so I was wondering if it could be included somewhere in the ranking?

    Thansk again for the tremendous effort that goes into the testing and reporting.

    Phil.

  • jpp - Monday, September 15, 2008 - link

    As I can't edit my previous post, just a correction wrt the timing of the 2 reviews.

    The Samsung review was done before the 24in panel review, yet it's not listed in this review. That seems a bit odd and I was wondering why that is the case?
  • billingsgate - Monday, May 26, 2008 - link

    I can't find reviews anywhere of Eizo LCD monitors. Eizo has a great reputation, but that's all I seem to be able to go on. A salesman gave me a really good pitch for the Eizo FlexScan S2401W. It's a Samsung TN panel (he claims), but somehow being an Eizo it's much better for color quality than any Samsung in the price range. It seems to be a good candidate for balancing accurate color and minimum input lag. But I can't be sure, since I can't test it in the shop for any of those things, plus the shops where I live are all little cubby holes in computer centers, with minimum choice in each shop, so it's impossible to do any side-by-side comparisons between Eizo, Samsung, NEC, etc., since they're never together in the same place.

    Any thoughts on Eizo's (relatively) budget line of FlexScans?
  • silvajp - Sunday, May 25, 2008 - link

    Today I bought a Samsung 2693HM for $600 - $50 rebate and I am blown away. It looks great - very bright and vibrant. I am wondering if it has the same low input lag as the 2493HM. The resolution is 1920x1200 so at 25.5" it's got bigger pixels which is just fine for my poor tired eyes.

  • billingsgate - Thursday, May 15, 2008 - link

    Can someone help me with a recommendation? After reading billions of reviews of monitors I am confused as hell? is there a "best compromise" LCD monitor for both color accuracy and least lag time?

    I am not a gamer. I am an animation professional, and I heavily use Wacom tablets for drawing, loose and freehand, with Photoshop, Flash, and various professional animation programs. I've always used a CRT monitor and never once have experienced any lag between my stylus movement and lines on screen. I do own a Compaq tablet PC, and when I draw on-screen, the lag is perceptible enough to make the drawing very unnatural and inhibited. I just can't draw freehand that way.

    As my beloved, expensive flat screen Samsung CRT monitor is now dying after 7 years of heavy use, I'm in the market for an LCD. In my business I need both excellent color accuracy and zero or minimal lag time for stylus input. Where I live (Hong Kong) there isn't a single shop that would ever allow me to test such a setup, so it's a lottery for me. Plus, their in-store demonstrations for color "accuracy" are geared for Asian tastes, which is heavy HEAVY on oversaturated red (while westerners prefer oversaturated green).

    After poring through all the reviews, particularly on this site, I can't even narrow down the choices to 4 or 5 candidates. The Dell 2408 looks amazing except for lag time. The Samsung XL20 (not widescreen, but I don't really care) looks great for color and no lag time, but it has a noisy fan (irritating!) and is a bit smaller than I want.

    Can someone seriously help me to narrow the potential choices for something that has good or great color and minimal input lag? I won't ever use it for gaming or for TV or video viewing.
  • hjkelly - Thursday, May 15, 2008 - link

    I'm in a similar spot - into editing photos and watching movies. I was almost set on the Dell 2408, but then I found out it has about four frames of lag, which wouldn't be fun for movies (or drawing with a Wacom tablet, I'm sure). I've finally settled on DoubleSight's DS-263N. If you want a quick summary, it's like an Apple Cinema display, but 26" and with a polarizer to get rid of the white haze at wider angles. It's also very fast, less than one frame's delay, I believe. It's around $700, but the catch is that it's hard to find in stock, so you'll have to be on your toes to get one. But isn't that just a sign of quality, really? =)
  • JarredWalton - Friday, May 16, 2008 - link

    Surely you know someone over there that can let you borrow an LCD to test out? Honestly, I don't think you'll experience problems with input lag - we're talking about 50ms or so relative to a CRT, so 1/20 of a second. What you've noticed on a tablet PC probably has a lot more to do with the lack of processing power and other differences. All you really need to do is find someone with an S-PVA 24" LCD and you can see if you notice lag. I can game fine on the 2408WFP - the lag is just barely perceptible at times, but not enough to cause me problems. But I'm not a competitive gamer.

    As for DoubleSight, their 26" LCD is about to be phased out apparently - I asked them for a review sample and they said it was at EOL. It may become even more difficult to find in stock shortly.

    Anyway, I hear good things about a few MVA panels (that I haven't ever seen let alone tested), or if money isn't a serious concern just pick up something like the HP LP3065. For professional use, I have a hard time finding anything I would prefer to a nice S-IPS 30" LCD. And the 2560x1600 gaming resolution is nice as well.
  • billingsgate - Friday, May 16, 2008 - link

    Actually, I don't know anyone with an LCD screen to borrow, other than my son's cheap one which is fine for gaming but not even close to being color accurate, so not exactly a good example. I can tell you that I tried a Wacom Cintiq tablet, which is essentially an LCD screen you can draw on. It was connected to a G5 Mac, so no lack of processing power. The lag on that was a fraction of a fraction of a second. But I kept finding my hand slowing down to let the line catch up to the stylus, which sucked all the spontaneity out of my drawing. In other words, for a "sensitive artist", even a small lag is noticeable. With the Cintiq I attribute it to the signal having to travel round trip on a USB connection. But I am now quite concerned about buying the wrong LCD and being stuck with it. This isn't the USA. Once you buy something and leave the shop, there is no such thing as returning it.

    So, to repeat my question: can you or someone help to recommend a shortlist of monitors that are both good to great for color accuracy, and minimal for input lag?

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