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Early Samsung Galaxy Alpha display tests: improved, more accurate AMOLED screen

Posted: , by Victor H.

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Early Samsung Galaxy Alpha display tests: improved, more accurate AMOLED screen
The Samsung Galaxy Alpha has broken cover today, and it turned out all we expected it to be: a 4.7-inch smartphone with a metal frame that would most likely rival the next Apple iPhone 6, a device that’s expected to come with a similar size and design traits.

Early reviews (or rather previews) of the Galaxy Alpha have already surfaced out of Russia where Samsung held an unveiling event, and we now have the first details about the display performance of the Alpha. 

First, the basics: we have a 4.7-inch screen of the AMOLED kind with a resolution of 720 x 1280 pixels and a PenTile pixel arrangement. We've talked about the huge improvements that AMOLED has undergone throughout the years, but when speaking about some aspects of it like grayscale accuracy, AMOLED screens like the one on the Galaxy S5 lagged behind rival LCDs.

Luckily, the early tests show that the Galaxy Alpha is a marked improvement in this aspect the grayscale benchmark shows nice balance between the intensity of the three main colors, something that results in a ‘true’ grey that is not green-ish, blue-ish, or red-ish.

Greyscale accuracy
Gamma

Greyscale accuracy

Gamma


Brightness, an area where AMOLED screens used to lag behind in the past, is also not bad (not stellar, though) on the Galaxy Alpha at 327 nits when measuring whites. Gamma also hovers around the industry-standard 2.2 (average value for the Galaxy Alpha is 2.24), being just slightly above that at the maximum brightness levels.

Like in other AMOLED displays, you have various screen modes. The basic mode is the default one and it is the mode that is closest to the industry standards of color accuracy.

In basic mode, the Galaxy Alpha colors are close within the sRGB color gamut. Saturations are just slightly off in this mode, with 100% values being a bit overblown, but others slightly undervalued, but as a whole not terribly distorted.

A look at the delta E values that show deviation from the standard values, we’re seeing some impressive numbers: 1.35 for greyscale and 2.74 for color.

Color accuracy

Color accuracy


The Galaxy Alpha offers other screen modes that offer different color representations. The photo mode, for instance, shoots for the wider, Adobe RGB color gamut that sees limited use by some professionals, rather than the more ubiquitous sRGB. There’s also the movie mode that stands out with a very cold, blue-ish white point at 7500K and overblown colors. If you stick to the basic mode, though, these early tests show that the Galaxy Alpha display comes with plenty of promise.

Finally, do keep in mind that these are tests performed on what's likely a close to final, but not final version of the Galaxy Alpha, which will launch on September 12th. We'll be running our own comprehensive set of tests on the final phone in the near future, so stay tuned.

source: Hi-Tech (translated)

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posted on 13 Aug 2014, 08:05 10

1. Arte-8800 (banned) (Posts: 4562; Member since: 13 Mar 2014)


Why compromise

Nothing can touch Amoled.

Samsung still have their SuperAmoledPlus on reserve.

posted on 13 Aug 2014, 08:10 1

2. Cicero (Posts: 404; Member since: 22 Jan 2014)


Like I said always: things are evolving.

posted on 13 Aug 2014, 08:13 12

3. tech2 (Posts: 2186; Member since: 26 Oct 2012)


Oh please PA, keep your inaccurate tests and judgements to yourself about display measurements.

You said Lumia 1520 has 707 nits brightness
and GS5 has 442 nits brightness

which is a HUGE difference. So then why in this video GS5 has brighter display ? And dont give me that ....reflectance in the sunlight is due to the glass argument

https://www.youtube.com/watch?v=cVm0D_IZz8U

posted on 13 Aug 2014, 08:26 13

6. PapaSmurf (Posts: 8614; Member since: 14 May 2012)


PA is probably the worst at these tests. Let's not forget the whole S5 mess.

posted on 13 Aug 2014, 08:31 2

7. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


But these tests were not made by PA.

posted on 13 Aug 2014, 08:42

10. PapaSmurf (Posts: 8614; Member since: 14 May 2012)


I'm pretty sure the source link confirms that.....dot.

posted on 13 Aug 2014, 08:21 13

4. StraightEdgeNexus (Posts: 3418; Member since: 14 Feb 2014)


AMOLED FTW!!
Samsung is really a$$ kicking in AMOLED Tech.

posted on 13 Aug 2014, 13:49 1

32. rkoforever90 (Posts: 86; Member since: 03 Dec 2011)


agreed i was an AMOLED hater . i saw the galaxy tab s and was blown away byt the display, so im getting one tomorrow

posted on 13 Aug 2014, 08:23

5. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


I'll wait for Francois Simond to test it.

posted on 13 Aug 2014, 08:42 1

11. PapaSmurf (Posts: 8614; Member since: 14 May 2012)


Why don't you test it our yourself in person when it releases?

posted on 13 Aug 2014, 08:52 3

15. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


Because I don't have the skill and equipment to do the tests. And I don't care enough to go into a store just to look at it lol.

posted on 13 Aug 2014, 08:52 3

14. tedkord (Posts: 4937; Member since: 17 Jun 2009)


If you want actual unbiased results, stay away from him.

posted on 13 Aug 2014, 08:53 4

16. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


lol WHY? He and Erica are pretty much the most unbiased and critical people in the tech community.

posted on 13 Aug 2014, 09:44 1

23. maherk (Posts: 1029; Member since: 10 Feb 2012)


Unbiased? Your kidding me right?

posted on 13 Aug 2014, 09:45 2

25. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


No I'm dead serious. How is she biased? Please tell me because I'm curious to know.

posted on 13 Aug 2014, 17:44 1

36. CanYouSeeTheLight (Posts: 860; Member since: 05 Jul 2012)


Because she said things that upset the fanboys. Therefore she's biased in their eyes.

posted on 13 Aug 2014, 22:43

40. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


Lol. True.

posted on 13 Aug 2014, 09:44 1

24. maherk (Posts: 1029; Member since: 10 Feb 2012)


Unbiased? Your kidding me right?

posted on 13 Aug 2014, 09:46 3

26. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


No I'm dead serious. How is she biased? Please tell me because I'm curious to know.

posted on 13 Aug 2014, 08:39 1

8. GreekGeek (Posts: 843; Member since: 22 Mar 2014)


Watch Erica Griffin's take on her Tab S review (youtube)
She is absolutely spot on with her criticisms.

Amoleds just can't render subtle shadows! Samsung likes to twist facts by presenting technical data that an average consumer can never really understand.

Is it the best out there? DEFINITELY NOT

Super LCD3 anyday baby

posted on 13 Aug 2014, 08:44 11

12. PapaSmurf (Posts: 8614; Member since: 14 May 2012)


SLCD3 sucks compared to AMOLED. Lower brightness, poor outdoor visibility, no deep blacks, and poor low brightness output.

The screens on the Tab S and S5 are the best I've seen on any smartphone/tablet I've ever used.

posted on 13 Aug 2014, 08:51 3

13. GreekGeek (Posts: 843; Member since: 22 Mar 2014)


Deep blacks at the expense of not being able to interpret shadows correctly?

and how about those neon colors (which are supposedly aren't) , do they look OK and natural to you?

yeah, believe everything fanboy... whatever floats your boat.

posted on 13 Aug 2014, 08:54 11

17. tedkord (Posts: 4937; Member since: 17 Jun 2009)


Erica Griffin is a hack. I'll stick to Displaymate for a PhD with over 30 years experience who actually knows what he's talking about.

posted on 13 Aug 2014, 23:47

41. 0xFFFF (Posts: 3309; Member since: 16 Apr 2014)


"I'll stick to Displaymate for a PhD with over 30 years experience who actually knows what he's talking about."

The role of a PhD is often to take in money and then come up with some BS on why something is "good" or "best". He may know what he is talking about, but it doesn't mean what he says is true.

This company should be called DisplayTestsForSale.

posted on 13 Aug 2014, 09:08

19. Cicero (Posts: 404; Member since: 22 Jan 2014)


Do you own a device with latest amoled display? If the answer is "yes" how can you live with such a "horrible" display! Go and throw your phone to garbage can!

posted on 13 Aug 2014, 10:26

29. Flippyphone (Posts: 42; Member since: 15 Jul 2014)


Anegativeunhappyguysezwhat?

posted on 13 Aug 2014, 09:09 6

20. derivativex (Posts: 79; Member since: 15 Jul 2014)


Compare the tab s screen next to any tablet with lcd and play the same demo videos and you will quickly see why the tab s has the best tablet screen around

posted on 13 Aug 2014, 09:04

18. dmh0284 (Posts: 12; Member since: 04 Apr 2014)


Ok I'm confused. Is the Galaxy Alpha the Galaxy F that has been hyped for the past few months? If so, what happened to the higher resolution and screen size? I'm hoping this is not the Galaxy F.

posted on 13 Aug 2014, 09:15 1

21. GreekGeek (Posts: 843; Member since: 22 Mar 2014)


They have been saying "improved and more accurate" for quite sometime now.

hahaha, and fanboiz be like "Amen! Amen! Amoled is the greatest thing since sliced bread" Praise Ye Sammy

posted on 13 Aug 2014, 09:57 4

27. PapaSmurf (Posts: 8614; Member since: 14 May 2012)


Too bad AMOLED surpassed it's rivals in outdoor visibility, brightness and color accuracy. :(

posted on 13 Aug 2014, 10:35 3

31. ArtSim98 (Posts: 2956; Member since: 21 Dec 2012)


Not in colour accuracy...

posted on 13 Aug 2014, 10:30

30. Flippyphone (Posts: 42; Member since: 15 Jul 2014)


And you have been saying "Everything sucks and everything is stupid" for quite some time now.

hahahaha and WeakGeek be like "I ain't got nuthin' to add so I just rips on whatevah anyones be talkin' about."

posted on 13 Aug 2014, 09:22 5

22. alexvv (Posts: 83; Member since: 16 Oct 2013)


"AMOLED screens like the one on the Galaxy S5 lagged behind rival LCDs". i do not own a sasmung and i'm not a samsung fanboy, but this is just a lie. amoleds besides having unrivaled saturation, contrast and black levels (no lcd can match these aspects) they are actually very color accurate, that is if you switch to professional mode and this point has been made clear by display experts much more specialised than the authors of PA (or any smartphone site).

posted on 13 Aug 2014, 17:46 1

37. CanYouSeeTheLight (Posts: 860; Member since: 05 Jul 2012)


The worst of all is that when the S5 came out PA lauded it as the best screen ever but one or two months later they started saying it was inferior to competitors, no coeherence on this website.

posted on 13 Aug 2014, 10:04

28. engineer-1701d (Posts: 1064; Member since: 13 Mar 2014)


lets take my $2600 led tv vs a same price lcd and ow thats right cant come close because the dont waste money on lcd tvs unless cheep little tv's from walmart. all the best tv makers use led tech because its a better pic, yes there is other crazy tech thats 5 or 6 k price but thats out there.

posted on 13 Aug 2014, 17:52

38. CanYouSeeTheLight (Posts: 860; Member since: 05 Jul 2012)


You might be confusing OLED with LED backlit TVs, OLED screens brightness comes from each individual pixel therefore managing to turn off each pixel to get a perfect black level and theoritical infinite contrast, LED backlit TVs are just an LCD with a LED light behind the pixel grid to provide the brightness, this LED light is constantly on and that's why LCDs don't have perfect blacks or infinite contrast. Only saying this because you are constantly saying LED and not OLED as they are very diferent in the TV world.

posted on 14 Aug 2014, 17:23

44. rusticguy (Posts: 2828; Member since: 11 Aug 2012)


In TV's isn't Plasma better?

posted on 13 Aug 2014, 15:05 1

33. AfterShock (Posts: 2812; Member since: 02 Nov 2012)


I still prefer LCD myself.

To each their own on this matter IMO.

posted on 13 Aug 2014, 16:06

34. JMartin22 (Posts: 1221; Member since: 30 Apr 2013)


LCDs have been on the market for decades and are beginning to plateau with the technical limitations behind them. It's only taken a few short years for (AM)OLED technology to largely surpass them. Even Apple will be using OLED tech listened by suppliers like Samsung some day in the near future. I wonder where the hypocrites will stand then. Oh wait, I already know.

posted on 13 Aug 2014, 17:06

35. gigaraga (Posts: 1211; Member since: 29 Mar 2013)


AMOLED already almost perfect in Note 3. S5 better. Tab S EVEN better. Alpha top notch. Note 3 already wasted LCD.

posted on 13 Aug 2014, 19:31

39. JMartin22 (Posts: 1221; Member since: 30 Apr 2013)


The rapid and tremendous improvements made by Samsung in OLED technology is impressive and prevalent. In the next 2-3 years; I expect to see other mainstream technology firms jumping on OLED for the display choice of their flagships, even including Apple, as LCD technology starts becoming more and more overshadowed and obsolete, due to, once again, inherent technological limitations of the latter.

posted on 13 Aug 2014, 23:53 1

42. Federated (Posts: 239; Member since: 06 Mar 2010)


The best smartphone screen that I've ever seen is the Nokia Lumia 1520. Try it yourself and you'll be amazed.

P.S. I'm not talking about OS or Applications here.

posted on 14 Aug 2014, 06:01

43. romeo1 (Posts: 241; Member since: 06 Jan 2012)


I think oled will become better but for now lcd and led are better

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