So up until now I’ve felt like the Galaxy Note 2 is really just a larger Galaxy S 3 with an active digitizer. But the 1280x720 HD SAMOLED display at 5.5 inches diagonal is where the Note 2 begins to strongly diverge from that trend. First off, it’s bigger than the Note’s HD SAMOLED which was 5.3" and 1280x800.

 


Galaxy Note 2 (left), Galaxy Note (right)

When I heard that Samsung was going to be doing a Note 2, I originally suspected that they would use the original Note’s display in conjunction with the hardware platform I outlined earlier. Instead, Samsung has gone with an entirely new revision of HD SAMOLED yet again for the Note 2, one that represents an interesting middle ground between a traditional RGB stripe like you’d see on an LCD and the RG BG Nouvoyance PenTile tech that we’ve seen countless times and iterated through a few different geometries to date.

With Galaxy Note 2, Samsung has gone with an entirely new subpixel rendering matrix, which I’ve heard was going to be called S Stripe. Instead of the previous PenTile tech which used two subpixels per logical pixel (either RG or BG), this new subpixel geometry uses 3 subpixels per pixel (RGB) but with a green subpixel above the red subpixel and a long vertical blue subpixel.

The reason for this change in geometry has always been an interesting one. The blue material has a lower luminous efficiency than the other colors, and thus requires either a larger area or higher drive power to match the equivalent green and red luminance. This is why you hear people saying the blue subpixel ages faster — sure, at the same size it ends up burning out faster due to this lower efficacy.

The mitigation is thus to craft a matrix that allows for a nonuniform geometry, and this one brilliantly does it without the tradeoff in longevity or loss of spatial resolution from going to two subpixels per pixel. The tradeoff that does get made is that subpixel smoothing only really gets two pixels to turn off - the blue, or the red and green unit. In the past the display driver could handle the RGBG unit cell and do font smoothing, from what I’ve seen the above is how the new one works as well.

I’m not complaining, this is a great tradeoff and makes sense for the resolution and size that Samsung has selected for the Note 2. Going with a PenTile RGBG layout at this size would not be desirable, instead the “S Stripe” layout runs with subpixels small enough that I can’t see them. It’s tempting to look at the 1280x800 of the Note and the 1280x720 of the Note 2 and assume it’s lower resolution, when in fact the Note 2 has more subpixels (2.05 MP vs 2.76 MP) and in spite of the size increase stays around the magical 1 arcminute subtense (1.073 arcminutes on Note 2).

Brightness (White)

The Note 2’s brightness unfortunately isn’t that high, but like always Samsung makes up for it with huge contrast from the black subpixels being almost entirely dark. I have a feeling this is still being very conservative for the panel for battery life concerns and to minimize both aging effects and burn-in.

Next up is color accuracy and calibration, where Samsung AMOLED has traditionally been very oversaturated — which looks vibrant and draws customers in at stores — but results in inaccurate rendering. We’re using Chris’ new suite here which is in CalMAN 5, I touched on the details in the iPhone 5 review.


 


 


Our target is sRGB, as Android doesn’t have a CMS, and the Galaxy Note 2 doesn’t stop the trend of SAMOLED having a gamut much larger than sRGB. At the same time however things could be much worse. I also measured the Galaxy Note 2 display at maximum brightness with Francois who said much the same thing - it isn’t alltogether bad among SAMOLED displays.

Color temperature at 200 nits is around 7000K but as the blue subpixel wears it will warm up and get closer and closer to 6500K. Overall the Galaxy Note 2 display makes some tradeoffs but ends up being quite appealing. There’s still something to be said for how contrasty AMOLED is even if it still is oversaturated compared to sRGB.

CalMAN Display Comparison
Metric iPhone 5 iPhone 4S HTC One X Samsung Galaxy S 3 Samsung Galaxy Note 2
Grayscale 200nits Avg dE2000 3.564 6.162 6.609 4.578 5.867
CCT Avg (K) 6925 7171 5944 6809 7109
Saturation Sweep Avg dE2000 3.591 8.787 5.066 5.460 7.986
GMB ColorChecker Avg dE2000 4.747 6.328 6.963 7.322 8.185

 

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  • leo jacsion - Tuesday, December 18, 2012 - link

    Preservance a professional <a href=" http://preservancetech.com/our-services/web-design... Designing</a> company based in the capital city of India that offers various services for website designing from a static website to CMS driven website to any open source website development to complete e-commerce site to travel portal. Reply
  • leo jacsion - Friday, December 21, 2012 - link

    Preservance a professional <a href=" http://preservancetech.com/our-services/web-design... Designing</a> company based in the capital city of India that offers various services for website designing from a static website to CMS driven website to any open source website development to complete e-commerce site to travel portal. Reply
  • darwinosx - Wednesday, January 30, 2013 - link

    It is much more than that. Anyone who paid any attention to the trial knows that Samsung had pages and pages showing the iPhone interface and the S 2 interface which it clearly said to copy as closely as possible. But the Android kids want to be ignorant and trot out the Samsung line that is just about being a rectangle. Reply
  • cmdrdredd - Wednesday, October 24, 2012 - link

    The GS2 is ugly as hell next to the GS3. Reply
  • Samus - Wednesday, October 24, 2012 - link

    Yeah its amazing how much my wife's GSII is mistaken for an iPhone in the line at ****bucks.

    I know what you mean, though, and its sad Samsung is basically banned from making "attractive" looking phones. Because appearantly, Apple invented attractive looking phones?
    Reply
  • Wardrop - Thursday, October 25, 2012 - link

    Dejavu? Reply
  • Spunjji - Thursday, October 25, 2012 - link

    Good to see I'm not the only one who got whacked by the comments system yesterday. Reply
  • n13L5 - Wednesday, November 07, 2012 - link

    The way I got my home screen set up, nobody has ever asked if it is an iPhone, as there's no rows of icons to see, and given the Samoled's black values, you can't even see where the screen ends if your background is set to black. Reply
  • Sabresiberian - Wednesday, October 24, 2012 - link

    I guess Samsung didn't consider what would be aesthetically pleasing to someone who would choose a screen name like "jigglywiggly". :D

    Seriously though, just like I'd never be caught using a screen name for a site like yours, there is nothing wrong with your choice, and there is nothing wrong with the looks of the Note II here. You just don't like it. That's fine, but please try not to talk as though you are the arbiter of beauty; you're not.

    ;)
    Reply
  • kenyee - Monday, November 05, 2012 - link

    Smooth, round, light, sleek. Not a brick like the iPhone :-)
    The SGS2 wasn't bad, but the pebble design aesthetic isn't bad IMHO...
    Reply

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