Super AMOLED

Anand talked about the Galaxy S line's Super AMOLED display in his Epic 4G review. I thought I'd expand on that by saying that reducing the number of layers and air gaps between display, coating, capacitive digitizer, and finally top layer glass, is what the "Super" in Super AMOLED is all about.

It might not sound like a big deal, but reducing the number of interfaces between those light emitting OLED pixels and your eye is hugely important. Each successive interface - purely by being an interface with different index of refraction - creates a reflection that attenuates light. Glass to air interfaces usually have a reflection coefficient of around 4%, meaning only 96% of light makes it through. If you've got two or more air-glass interfaces, that adds up quickly, and you lose that light entirely to reflection. How much that reflection coefficient is depends on the index of materials at the interface, but more interfaces in general hurts transmission. Reflections and glare is also what makes reading displays difficult outside. 

This sort of display-digitizer lamination is quickly becoming the norm rather than the exception. The iPhone 4 did it, and now Samsung is doing it with its own AMOLED displays - expect to see others do the same. The result is that there's perceptibly less distance between the top of the digitizer and the pixels themselves (viewed from an angle), and now less glare and more light making it through. Yay for optical contact!


View this one bigger in full size to see what I mean

Next to the Nexus One, you can really see how much less distance there is between pixels and the surface of the top glass. The Samsung's Super AMOLED display literally appears to be on the surface.

The front of the Fascinate is one unbroken glass surface. Honestly, the display is probably the best part of the Fascinate. The 4" size isn't too big, but just right. At the bottom are capacitive buttons - as usual in yet a different order than I'm used to. Menu at the far left, home, back, then search from left to right.

The buttons are backlit, but only for a few seconds at a time. It's a bit frustrating, especially since right when you want them to be backlit most, they're inexplicably not lit.

I'd say AMOLED has come a long way since the Nexus One. My Nexus One routinely has ghosting and appears off-white - the Fascinate's Super AMOLED display is perfect. I used to be turned off by AMOLED's weird grain from the PenTile matrix - the Fascinate somehow has noticeably less. Either that, or I've just grown more accustomed to it. The oversaturation downside is still there, it's especially obvious when you pull screenshots from the Fascinate or any AMOLED device down to the desktop on a calibrated display.

Outside readability in practice is improved from the Nexus One. Honestly, it's still hard to read in direct sunlight outside, but it's better. For doing just about anything, seek shade.

Viewing angles on Super AMOLED are pretty awesome. I'd say contrast is pretty much unchanged even at extreme angles like 85 degrees. I've included lots of different angles and more outdoor and indoor comparison shots in the gallery below. 

The oddest parts of the Fascinate's display are all the brightness settings. There are three of them - one in settings that every Android device has, another down below that's basically dynamic contrast, and one in the browser. It can get a bit confusing controlling everything that's going on brightness wise.

I measured a bit more brightness than Anand did on the Epic 4G:

        

Black levels are perfect again, and thus so is contrast.

I have to agree with Anand - if resolution is what you care about, the iPhone 4 leads. If contrast and seriously vibrant (to the point of being oversaturated) colors are what you like, Super AMOLED is where it's at.

TouchWiz and Verizon's Preloads Camera Analysis and Samples
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  • R3MF - Tuesday, October 5, 2010 - link

    when is android due to get a GPU accelerated UI?
  • fixxxer0 - Tuesday, October 5, 2010 - link

    maybe update the numbers?? i think its more or less similar to the droid 2 for the most part.

    (sorry if someone already posted this i only read the front page of posts)
  • jasperjones - Tuesday, October 5, 2010 - link

    On page 1: "There's the standard 1.8mm audio jack for headphones." Err, the standard audio jack is 3.5mm. It's a typo, right?
  • alaricljs - Tuesday, October 5, 2010 - link

    Standard audio jack "ON A PHONE" which really shouldn't need to be stated since we know this is a phone happens to be 1.8mm.
  • fabarati - Tuesday, October 5, 2010 - link

    No phone uses 1.8 mm jacks. The old smaller standard was 2.5, but that's not used all that much anymore either. The confusion arises from the american usage of the imperial system. See, 1/8"=3.5mm.

    So yeah, typo.
  • Brian Klug - Tuesday, October 5, 2010 - link

    Oops, I meant 1.8", fixed!

    -Brian
  • Vepsa - Tuesday, October 5, 2010 - link

    What GPS test app are you using?
  • Belard - Tuesday, October 5, 2010 - link

    I picked up my Captivate a few days ago. For the most part, the hardware is exactly the same as the Fascinate... But it has a metal cover for the battery and a slick release system... very nice. The BAD thing about the Captivate is the lack of a FLASH for the camera! Really, no flash!?

    The UI for at&t Android is very much the same shown in this review... but the branding is no-where near as bad (I'm not a Verizon fan because of this) - the at&t apps are out of the way and I believe are removable. There are no at&t book-marks, and at&t listings in the phone-book are removable.

    I had a choice between the Samsung Captivate and Sony X10 (Android) - with the Sony being $50 cheaper at $150. Comparing the screen type, the USB cover and easily half as thin body - I went with the Samsung.

    After a few days of use and STILL Learning how to use Android - there are a few things I don't like about using these phone which can be "fixed" with software, if they exists.

    1 - Lock the main buttons to remain LIT when the screen is... YES, it sucks and I heard there is an option for this, haven't found it yet. UGH!

    2 - To use the phone, press the tiny power button - THEN swipe to unlock the phone. This is a pain. I would LOVE the option to INCLUDE the Vol/Rocker buttons to activate the screen, or even the 4 main menu buttons... it should be easy. The rocker button is much bigger and easier to feel. Is there a way to do this (yet)?

    Other than that, I'm good with the phone... I know its screen isn't quite as nice as the iPhone4, but I don't want an iPhone... but I am betting that future phones in 2011 will catch up, its nice that you CAN'T see the pixels.

    In general, the Captivate will have the exact same performance, higher quality body, less bloat and no flash.

    PS: Packaging. at&t is a very small box... not as fancy, but it is better for the environment as well as shipping.
  • darwinosx - Tuesday, October 5, 2010 - link

    Between the bloatware, the GPS, and the non-changeable Bing search this phone is a non-starter. No wonder Verizon is already practically giving them away. Google sure did get suckered by Verizon in a way Apple would never do. I don't care how good Verizons network is, if they keep doing this to phones they are going to lose a lot of customers.
  • Belard - Tuesday, October 5, 2010 - link

    Verizon does this to ALL their phones, for years.

    Oddly, at&t has sometimes copied the SONY UI style to other phones - in the past.

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