Samsung on why it went PenTile with the Galaxy S III display: It's the longevity, silly!

Samsung on why it went PenTile with the Galaxy S III display: It's the longevity, silly!
Samsung USA's Philip Berne was kind enough to explain at the CTIA expo why the company went with the PenTile instead of RGB matrix for the 4.8" HD Super AMOLED screen of its new Galaxy S III flagship.

What he said is actually quite surprising - Samsung apparently deems PenTile superior for an AMOLED screen longevity, despite that it touted the RGB matrix last year in the Galayx S II marketing. We know that blue subpixels deteriorate orders of magnitude faster in an OLED screen due to the nature of their components, compared to the longer-lasting green and red. With recent advancements in the blue diodes, this has been remedied, but on the research phase, and not yet implemented in mass production, it seems. 

Samsung research showed that people are keeping phones like the Galaxy S III longer than 18 months, so it wanted to ensure the screen will keep its initial quality as long as possible. The thing is that PenTile uses red-green-blue-green (RGBG) subpixel arrangement in the "screen door"-style PenTile matrix, whereas the ordinary red-green-blue RGB "stripe" matrix has twice more blues, obviously, which you can see in the picture on the right, while the human eye is much more sensitive to greens, so blues are not missed much with PenTile.

Still, Philip Berne said they are using a different PenTile method for the 4.8" HD screen on the Galaxy S III, compared to the 4.6" on the Galaxy Nexus, with shrunken gaps in the subpixel matrix, further minimizing the PenTile "grainy" effect in solid colors when looked at from right under your nose, or, even funnier, under a microscope, both of which you won't be doing anyway with the Galaxy S III.

Well, now we know, it's definitely not because Samsung is cheap, as producing a high pixel density S-AMOLED display with its current Fine Metal Mask (FMM) method used for the PenTile layout actually costs quite more than the Laser Induced Thermal Imaging (LITI), that is required for a high-res RGB stripe AMOLED. It will eventually get into Samsung's phones, we hope, when those blue phosphorescent dyes gets from the labs to mass production.

source: MobileBurn

Related phones

Galaxy S III
  • Display 4.8" 720 x 1280 pixels
  • Camera 8 MP / 1.9 MP front
  • Processor Samsung Exynos 4 Quad, Quad-core, 1400 MHz
  • Storage 32 GB + microSDXC
  • Battery 2100 mAh(11.60h 3G talk time)

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65 Comments

1. LordOfTroll

Posts: 54; Member since: May 08, 2012

Samsung knows whatever it fit, you fandroids will buy. So yeah, it's fine.. Does that sound familiar somewhere with a fruit?

2. mrochester unregistered

I know your comment is tongue in cheek, but it is broadly correct. Any device you buy requires you to compromise in one way or another. The pentile screen is a compromise that you have to decide whether you can live with just the same as the 3.5" screen on the iPhone is a compromise you have to decide whether you can live with. It's NEVER a case of buying something just because, it's a case of weighing up the pros and cons and buying whatever device has the most pros for you.

3. adi4u4882

Posts: 137; Member since: Jan 10, 2012

That goes for you. All you sheeps buy a iPhone 4S which only had a improvement over the CPU.

4. baldilocks

Posts: 1540; Member since: Dec 14, 2008

...and camera and GPU and antennae......

7. mrochester unregistered

Stupid comments don't get you anywhere. You know fine well that there were more improvements to the 4S other than the CPU.

11. chadrick0814 unregistered

Improvements like 4g??? I guess that's not important.

24. remixfa

Posts: 14605; Member since: Dec 19, 2008

Samsung gives you devices of all shapes and sizes to fit your needs. If you dont want pentile, you can still go get an SGS2 and its quite powerful. Apple forces you to take one size and like it. Longevity is a great buzzword, but the truth is that the RGB version isnt ready for production yet. So you either get pentile, which every review says is still one of the best looking screens ever... or you wait another 3-6 months for RGB. For what is such a minor difference between the 2, ill take the pentile. I have one now and I have noooo problem with it.

56. gallitoking

Posts: 4721; Member since: May 17, 2011

wow remix you just repeated what the article says.. cheers?.. keep drinking that juice

62. mrochester unregistered

To all intents and purposes, Samsung are giving you no choice either. If you want their latest, high end phone, it's pentile or nothing; You're "forced" by Samsung to buy last years technology if you want an RGB screen. That's not really a very good choice, is it? I think you're also forgetting that consumers are able to freely choose between any number of smartphones that are on the market, from £30 PAYG Android devices to £700 iPhone 4S's. No one is forced to buy anything.

5. baldilocks

Posts: 1540; Member since: Dec 14, 2008

...oh, and it's sheep, not sheeps.

31. martinlosha unregistered

Sheeps for plural.

32. Mario1017

Posts: 336; Member since: Sep 04, 2011

The word sheep is both plural and singular, there is no such thing as "sheeps"

34. martinlosha unregistered

You are right professor.... How about the word Samsheep..... Is that correct?

41. EclipseGSX

Posts: 1777; Member since: Oct 18, 2011

LOL OWNED EARWAX

52. SleepingOz unregistered

After getting banned for the first time, you decided to create two more accounts in order to troll harder on Samsung and Android articles. This is obsession , man! Get a life man!

58. TROLL.ISAHA

Posts: 535; Member since: Mar 28, 2012

Eaxvac its u again u puppet. With a different name ha.

61. Mario1017

Posts: 336; Member since: Sep 04, 2011

Grade 3 grammar does not make me a professor, just makes you look stupid. Me a samsung sheep? funny.

6. Alistaire

Posts: 132; Member since: Apr 13, 2012

longevity... keep longer than 18mths!!!??!!! A normal mobile plan contract is 2 years = 24th mths... 18 mths is not longevity! Try harder samsung

8. baldilocks

Posts: 1540; Member since: Dec 14, 2008

The last time I did math 24 is more than 18. Maybe you do a different kind of math???

9. martinlosha unregistered

Basically Samsung believes they are very strong in the market and they can release ay piece of Garbage and excpect to sell. That means they beleive there are a lot of Samsung Sheeps out there.

10. LordOfTroll

Posts: 54; Member since: May 08, 2012

Agree

12. chadrick0814 unregistered

I don't get it. The article clearly points out that it costs more for Samsung to produce pen tile than RGB. Wouldn't it be easier to sell the cheaper RGB to the "sheep?"

13. Non_Sequitur

Posts: 1111; Member since: Mar 16, 2012

But they won't. Because Samsung wants quality and wants to do what is best... The screen will still be S-AMOLED and 720p with an even sharper-looking pentile screen. It'll still look beautiful.

26. SleepingOz unregistered

They haven't even read the article. They are just haters trolling on Samsung articles.

28. martinlosha unregistered

Dude get the hell out of here. If you want to give your money to samsung and get a garbage phone like this in return then go ahead and buy it. I won't buy it though because is not worth it. i will not find any reasons to support this device because im am not a Samsung fanboy either.

43. gwuhua1984

Posts: 1237; Member since: Mar 06, 2012

I'm not a Samsung fan, but still I find the SGS3 impressive.

27. martinlosha unregistered

Yes but a Super Amoled + costs even more and that's what people deserve.

42. EclipseGSX

Posts: 1777; Member since: Oct 18, 2011

Basically (Apple) believes they are very strong in the market and they can release (any) piece of Garbage and (expect it) to sell. That means they (believe) there are a lot of (Apple) Sheeps out there.

63. mrochester unregistered

No, it basically means that Samsung, like any other manufacturer, has had to weigh up the pros and cons of using certain tech in their products and make a decision and go with it. I really REALLY *REALLY* hope some people finally take note and realise this and hopefully we can put an end to the constant, petty, irritating "bashing" that goes on. Sadly, I'm not holding out much hope of such a mature response...

14. Bluesky02

Posts: 1439; Member since: Dec 05, 2011

Interesting article. 18months is too less. A fully unlocked $600 smartphone should atleast sustain for 5yrs.

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