Three-Way 23" LED LCD Roundup: Dell, HP, And Samsung

Black And White Uniformity, Viewing Angles

Another measurable aspect of panel performance is brightness uniformity. Most manufacturers calibrate displays based on the center point of the screen. However, every area of the screen behaves differently. Sometimes you can get better performance in one specific region. As a result, we have added a nine-point black and white luminance test to measure the performance of each monitor's panel.

Dell SR2320L
White Luminance cd/m^2
170.3404192.1471197.5039
176.0936200.9093211.4455
175.5504200.463209.2209
Black Luminance cd/m^2
0.11680.15100.1199
0.11070.13180.1748
0.09560.11690.1520


The SR2320L appears to have slightly lower luminance near the left edge of the screen. That's why the viewing angle on the left appears worse than the right. 

HP 2311x
White Luminance cd/m^2
176.2259198.3685179.2023
194.1763197.1751192.6677
188.7952186.0513186.7866
Black Luminance cd/m^2
0.20550.23810.2326
0.20880.26040.2121
0.25880.20760.2055


HP's 23" LCD produces good uniformity of black tones. However, white luminance performance is noticeably poor near the edges.

Samsung PX2370
White Luminance
181.093180.5944176.8229
188.3543202.569180.8776
209.8375214.0824209.074
Black Luminance
0.11710.21360.1586
0.13270.14600.1348
0.21460.16020.1349


White luminance is fairly even on the PX2370, though the bottom portions of the screen appear slightly brighter. Black luminosity appears more spotty, as you can see from the contour plot. This also turns up in viewing angle performance. But unless you plan to game on multiple screens, this shouldn't be a big concern.

Create a new thread in the US Reviews comments forum about this subject
This thread is closed for comments
105 comments
    Your comment
  • jimslaid2
    Ummmm LG! How Could you have left out LG?
    1
  • taso11
    I think you mean DVI-D not DVD-D on your front page chart.
    2
  • pirateboy
    hey where did my comment go?

    anyway...
    please review 16:10 monitors next time
    -1
  • sleeper52
    where's the NEC EA231wmi or EA232WMI? that's around $300 as well and it's an IPS
    1
  • aznshinobi
    Hmmm.... Could've added an LG, I love my LG W2286L
    0
  • fstrthnu
    I'd actually rather see a 24 & 25.5" monitor shootout, they tend to be the higher-end displays of the brands (like Dell's super-duper Ultrasharp U2410).
    2
  • Assmar
    A certain retailer has the samsung monitor listed for 280 with free shipping. If you don't live in CA, that's tax free, i'm pretty sure.
    0
  • sleeper52
    fstrthnuI'd actually rather see a 24 & 25.5" monitor shootout, they tend to be the higher-end displays of the brands (like Dell's super-duper Ultrasharp U2410).


    +1 I'd like to see that. HP LP2475w (rev 2.0) vs Dell U2410 (rev 2.0) vs ASUS PA246Q
    1
  • LuckyDucky7
    Why would you bother buying one of these monitors when you can get an IPS one for the same price?

    How about reviewing something like the ASUS ML239H and give us a useful review, rather than going over which one of these junk TN panels is the best? 100% sRGB is useless if you can't see it unless you're straight inline with the screen (any sometimes not even then).

    KTHXBAI
    -4
  • agnickolov
    Finally an article about LCD monitors!

    The selection is rather pointless (what self-respecting Tom's Hardware reader goes to Best Buy to get a monitor anyway?), however. Replacing Dell and HP with manufacturers like ViewSonic, ASUS and LG would make more sense, at least for the low end.

    Reviews for IPS panels would be very welcome, but TN is where the bulk of purchases go, so I'd like to see more TN reviews going forward too. Just get realistic online prices please, instead of the MSRP Best Buy sells at... Case in point - I bought my older generation (16:10, e.g. 1920x1200) 26" ASUS for $240 last year.

    Hopefully we get a series of LCD monitor charts (chart per monitor size) out of this some day, but we'll need a lot of testing activity to happen until then...
    -2
  • nevertell
    Why would you even calibrate a TN panel, if the colors shift even if tilt your head a little.
    0
  • andrewcutter
    "If you're a gamer, wider gamuts should be your preference because the gamut required to adequately represent the colors in titles like Just Cause 2 is much larger than what's needed to watch an episode of House (which usually uses a smaller and darker color palette). This also goes for anyone that seriously cares about content creation. For example, if you're a photographer, accurate representation of a color space may be your livelihood. "

    toms i like your site but what the heel are words like photographers and content creaters doing in a review of tn monitors. :O
    2
  • lott11
    21" 23" 24" 27" LG,Vs ASUS Vs San sung Monitors for 3 way monitor set up,for ATI video card Gaming setup.
    and a best setup mount or alinement's, best in visual and smallest borders, so on.
    and just like gaming PC lets say $1,000.00 $1,200.00 $1,500.00 i would have said $900.00 but that is not realistic.
    0
  • Anonymous
    Would like to see (~300$) monitors reviews based on IPS panels. For example LGE IPS231P, Dell 2311H etc.
    -1
  • dirtmountain
    Thanks for this review of monitors. Readers of Tom's run the whole gamut of computer people, from neophyte business people to foaming at the mouth gamers and even (as we see above) elitist wankers. You can always focus on premium displays in the future, thanks for this average budget minded review.
    2
  • exenter
    All tech sites I know of test games on the resolution 1920x1200, but only test monitors with max resolution of 1920x1080. Why is this?
    0
  • neo700
    LuckyDucky7Why would you bother buying one of these monitors when you can get an IPS one for the same price?How about reviewing something like the ASUS ML239H and give us a useful review, rather than going over which one of these junk TN panels is the best? 100% sRGB is useless if you can't see it unless you're straight inline with the screen (any sometimes not even then).KTHXBAI[/citation.

    Is IPS some new kind of monitor?
    0
  • ubercake
    One thing I notice about the Samsungs these days is the 3 year warranty as opposed to most companies 1 year. That's pretty substantial in the day and age of producing "disposable" lcd monitors. I'm sure this is a big part of the higher cost. The picture is usually great on a Samsung monitor, though the reason I will always choose a Samsung monitor is the warranty all other things being equal (beside price).

    Samsung doesn't even back it's $1500+ 3D TVs more than 1 year (I can tell you first-hand there's a reason they don't!). Samsung TVs have the best picture around, but the component quality sucks balls. For this, I will never buy another Samsung TV (unless they add a 3-yr warranty to their TVs).
    0
  • ibemerson
    I will never buy another 60hz monitor again. So I would like to see a roundup of 120hz monitors.

    To quote a review from anandtech: "Though the 120Hz refresh frequency does make games playable in 3D, there’s another important benefit of using a faster refresh rate - everything looks smoother, and you can now drive up to 120 FPS without tearing. The ASUS VG236H was my first exposure to 120Hz refresh displays that aren’t CRTs, and the difference is about as subtle as a dump truck driving through your living room. I spent the first half hour seriously just dragging windows back and forth across the desktop - from a 120Hz display to a 60Hz, stunned at how smooth and different 120Hz was. Yeah, it’s that different. . . honestly, the completely unparalleled level of smoothness on a 120 Hz display has made me hyper attuned to just how flickery 60Hz looks on all the other LCDs I’ve got."
    1