So I see lots of threads/posts about PenTile. Found this to be interesting, sharing it. It's mainly in regards to Samsung Galaxy S3 but as we know, Galaxy Nexus uses PenTile as well. So it would apply for our phones as well.
Samsung's Philip Berne explained to me that the blue subpixels on AMOLED displays actually degrade the fastest - quicker than the red or green subpixels. With a PenTile layout, the subpixels are arranged RGBG (red, green, blue, green), so they feature more green subpixels and fewer red or blue subpixels than an RGB stripe layout with the same resolution. Because of this, AMOLED displays that have the PenTile layout tend to have a longer lifespan than those with RGB layouts. Since Samsung is selling its phones to users that usually keep them for 18 months or longer, it has to be sure that the display will still offer peak performance at that time. According to the company, PenTile AMOLED displays have proven to be more reliable than those with RGB layouts.
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Source: http://www.mobileburn.com/19548/new...ed-displays-last-longer-thats-why-we-use-them
Thanks. Saw a few links to this. I don't really see what the issue is with PenTile. In normal use, its next to impossibile to see.
I think what people have bigger issues with are banding/discoloring/streaking, not necessarily the PenTile arrangement. Its just a nice 1-word "catch all" for not liking a display.
Motorola gave PenTile a bad name using rbgw arrangements. Now everyone assumes they will get screendoor effects.
adrynalyne said:
Motorola gave PenTile a bad name using rbgw arrangements. Noe everyone assumes they will get screendoor effects.
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The RAZR coming out ~same time as the Nexus with that god-awful display definitely gave a negative connotation to "PenTile".
Pentile was somewhat noticeable on the first SAMOLED display that they had in the SGS lineup, but only when it was text on a solid background. With SAMOLED HD, the pixel density is so high that I have yet to be able to see a jagged edge on text anywhere. I wonder what people would think if Apple used a Pentile matrix on an iProduct. Probably be the best thing in display technology rather than the most hated if it happened.
I love my galaxy nexus and my friend got a htc one x and it does look really good but I prefer my nexus maybe cause I like dark colors
Sent from my Sprint Galaxy Nexus CDMA using Tapatalk 2
Yeah I agree with Motorola giving PenTile a bad name. When I first saw the Galaxy Nexus screen, I didn't even notice any differences. I don't know the technical terms on why it's different but compared to my previous phones, Nexus S / Galaxy S1 (Vibrant).. I don't really see any difference, in fact the GN looks even better but that might just be Super AMOLED HD. But whatever it is, it looks amazing.
The people criticizing about PenTile without even looking at the phone or trying it for a week or two need to re-evaluate themselves.
Ya, but Samsung still has not found a good enough manufacturing process to make regular "Super AMOLED+ HD" Screens at 4.6inch+ (hence the pen tile). That's why the screen's pen tile.
Sent from my Galaxy Nexus using XDA
imnuts said:
I wonder what people would think if Apple used a Pentile matrix on an iProduct. Probably be the best thing in display technology rather than the most hated if it happened.
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Hopefully apple wont make a mistake like that.
nohcho said:
Hopefully apple wont make a mistake like that.
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I doubt apple would I still remember that first iphone and the screen was amazing phone kind of suck tho
Sent from my Sprint Galaxy Nexus CDMA using Tapatalk 2
Y'know, I always thought that PenTile would bother me too much to ever use a phone. I'd seen some devices that used older or low-end versions of it, and they looked terrible.
I was apprehensive at best of getting the Galaxy Nexus. PenTile and the lack of an SD card slot bothered me, to say the least. Over time, I've grown to love the phone. Much of that is because while there are some issues with the PenTile display, such as some banding and purplish greys at very low or lowest brightness settings, these issues aren't noticed even at a slightly raised brightness settings. Otherwise, the display is one of the best performing displays I've ever had the pleasure of using. The colors are bright and vibrant, the blacks are black, there are no light bleeds common with backlit displays and the outdoor performance, while not the best, is still excellent.
Super AMOLED HD isn't perfect, but it's certainly a good step forward in the evolution of display technology.
nohcho said:
Hopefully apple wont make a mistake like that.
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Didn't you know? Apple never makes mistakes
When I was looking at new phones, Pentile bugged the hell out of me every time I saw it. I swore I'd never buy a phone that used it. After Google started selling the Galaxy Nexus, I took a look at the VZW model just for kicks, and I honestly couldn't tell the difference unless I held it point-blank.
jgalan14 said:
I love my galaxy nexus and my friend got a htc one x and it does look really good but I prefer my nexus maybe cause I like dark colors
Sent from my Sprint Galaxy Nexus CDMA using Tapatalk 2
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Owning both devices, I actually prefer the one X screen over the nexus. Not by
a drastic margin though. Pentile displays are pretty atrocious on smaller resolution
screens (qhD or below).
It's a non-issue on the nexus.
I can tell occasionally but the high Res far outweighs the small nuance of seeing it in certain situations and being HD it still looks great. :thumbup::thumbup: for HD rgbg pen tile.
...of the people, by the people, for the people...
I thought the issues of the blue sub-pixels degrading faster than the red and green ones had been, basically, sorted - at least in as much that the degradation, whilst still faster than the other sub-pixels, was now slow enough that it was not particularly perceptible over the lifespan of the device (at least for the likes of phones, which are replaced much quicker than most consumer electronics devices).
I mean, according to Wikipedia the typical time for blue sub-pixels to degrade to half their original brightness is 14,000 hours - or 8 hours a day for 5 years.
Now I don't know about the rest of you but I don't have my handset's screen on for anywhere near 8 hours a day nor do I expect to still be using it in 5 years time.
And on top of that, it talks about 'experimental' blue OLED panels which can sustain 400 cd/m2 for over 62,000 hours - and that was in 2007.
Smokeey said:
Ya, but Samsung still has not found a good enough manufacturing process to make regular "Super AMOLED+ HD" Screens at 4.6inch+ (hence the pen tile). That's why the screen's pen tile.
Sent from my Galaxy Nexus using XDA
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Wrong. Galaxy tab 7.7 . If Samsung put samoled HD plus in sgs3 the price for the phone would be too damn high and the difference between screens quality is not that big as people who haven't even used it or used sgs1 with small resolution are trying to tell.
Sent from my Galaxy Nexus using xda premium
beeboss said:
Wrong. Galaxy tab 7.7 . If Samsung put samoled HD plus in sgs3 the price for the phone would be too damn high and the difference between screens quality is not that big as people who haven't even used it or used sgs1 with small resolution are trying to tell.
Sent from my Galaxy Nexus using xda premium
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The Galaxy Tab 7.7 is using a SAMOLED+ screen that is ~7". It is not a SAMOLED HD screen despite having an HD resolution. At least they do not advertise it as SAMOLED HD, it is listed as an HD resolution SAMOLED+ display.
When the g nex first came out all I say was the horrible screen. So I bought the t mo gs2 which had the ugliest screen resolution ever so I got a nexus. The screen on the phone is awesome dark blacks deep colors this is a great screen. The super LCD 2 is nice but I prefer this
beeboss said:
Wrong. Galaxy tab 7.7 . If Samsung put samoled HD plus in sgs3 the price for the phone would be too damn high and the difference between screens quality is not that big as people who haven't even used it or used sgs1 with small resolution are trying to tell.
Sent from my Galaxy Nexus using xda premium
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Bingo. I think Samsung is just trying to get the most value out of their current process-level.
The panel in my (oft mentioned) ET4G SGS2 is roughly the same exact dimensions as the GNex screen....though if you multiply 800x640x12 (subpixels) you come up with the same exact number you would if you multiplied 1280x720x5 .....and that 5 is where the damning "Pentile" moniker comes from.
So, that means these two (oft compared) panels have the same amount of subpixels arranged in the same amount of space in a slightly (or vastly, depending on how you looked at it) configuration.
So, for solid colors--aside from calibration differences and luminance (brightness) differences--the panels are effectively identical. I know I simplified a lot of the dynamics away with those qualifications, but, in this scenario we have the same amount of subpixels in the same exact density making the same exact color...
Before I decided to swap up to the GNex I marched down to the Sprint store and did the nerdiest side-by-side comparison I could and there wasn't a single moment where I had any question which screen I'd rather be looking at all the time....It's the GNex. The only thing I noticed was that it wasn't as cornea scarringly bright....big deal....after 30 seconds of screen-on maxed out the SGS2 screen turns itself down to prevent damage or something.....and then it's dimmer than the GNex anyway.
nohcho said:
Hopefully apple wont make a mistake like that.
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Apple is anal. They do alot more testing than Samsung because people will actually use + buy there phones well past its 18 month life span.
I just moved from Samsung Galaxy Tab 10.1 to Nexus 7 2013. I see a major difference in colors.
The colors or N7 are dark'ish and not very bright as compared to my Galaxy Tab. Did I get a faulty device or its just normal?
the contrast in the screen is different, just that.
the contrast used in nexus 7 is similar to the ipad. samsung looks more brighthen but it's just an effect of the screen.
Samsung always uses very exaggerated color and contrast settings so that noobs who see the devices are impressed and buy them.
The same as makers of stereo equipment who make the bass very strong and loudness level very high so that people with no clue about music think that the device has “great sound“.
Don't fall for that lower class BS.
hasenbein1966 said:
Samsung always uses very exaggerated color and contrast settings so that noobs who see the devices are impressed and buy them.
The same as makers of stereo equipment who make the bass very strong and loudness level very high so that people with no clue about music think that the device has “great sound“.
Don't fall for that lower class BS.
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I may be a noob but I like my colors bright/vibrant. I can't get used to the dull/darkened colors of Nexus 7 (2013) model.
I am looking for a way to make my N7 screen appear like Magic Bright mode found in Samsung Monitors or G'Tab.
nexusguy7 said:
I may be a noob but I like my colors bright/vibrant. I can't get used to the dull/darkened colors of Nexus 7 (2013) model.
I am looking for a way to make my N7 screen appear like Magic Bright mode found in Samsung Monitors or G'Tab.
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Samsung monitors are actually very good (Not over saturated). On the Nexus 4, there's an app called Nexus 4 Display Control, but there isn't anything (to my knowledge) for the Nexus 7.
I also have a Sony Tablet Z (which has very good color reproduction), and when I see both tablets side by side there is of course some difference (mostly that whites are yellower on the Tablet Z), but in NO WAY can the color reproduction of the Nexus 7 be called bad, weak, inaccurate or something like that!
I purchased the tab pro 10.1 yesterday. Th screen is fantastic but when I tried to watch a movie with dark scenes there was a very noticeable glare like a white cloud everywhere on the screen that moved when I moved the tablet. I ran a backlight bleed app and when the britghness is 100% this effect is much more pronounced. Nothing like that on my Lg gpad 8.3 or my Samsung galaxy tab 7.7. Anyone notice anything like this? This can't be normal right?
johnsv said:
I purchased the tab pro 10.1 yesterday. Th screen is fantastic but when I tried to watch a movie with dark scenes there was a very noticeable glare like a white cloud everywhere on the screen that moved when I moved the tablet. I ran a backlight bleed app and when the britghness is 100% this effect is much more pronounced. Nothing like that on my Lg gpad 8.3 or my Samsung galaxy tab 7.7. Anyone notice anything like this? This can't be normal right?
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Unfortunately all the new tabs from the Note 10.1 2014 and up have horrible light bleed. I'm on #4 Note 10.1 2014 and I gave up and kept it since it's only seen in a dark room with a black background. Some are worse than others but I got 4 in a row that had 6 to 7 light bleeds at the bottom in landscape mode. Most tablets have some even Apple. It's bad quality control because I just bought a Dell Venue 11 Pro and it has NO light bleed and when you see black, it's like the screen is off and not with a glow like all these Samsungs. I even had to return a Samsung 55" LED TV in December.
Good luck.
Peeodee said:
Unfortunately all the new tabs from the Note 10.1 2014 and up have horrible light bleed. I'm on #4 Note 10.1 2014 and I gave up and kept it since it's only seen in a dark room with a black background. Some are worse than others but I got 4 in a row that had 6 to 7 light bleeds at the bottom in landscape mode. Most tablets have some even Apple. It's bad quality control because I just bought a Dell Venue 11 Pro and it has NO light bleed and when you see black, it's like the screen is off and not with a glow like all these Samsungs. I even had to return a Samsung 55" LED TV in December.
Good luck.
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I exchanged it for a new one at the store I bought it from, but unfortunately it has the same problem. And keep in mind that I live in Greece so I paid a premium price (579 euros) for this "premium" tablet. And now I am stuck with it!
johnsv said:
I exchanged it for a new one at the store I bought it from, but unfortunately it has the same problem. And keep in mind that I live in Greece so I paid a premium price (579 euros) for this "premium" tablet. And now I am stuck with it!
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I know it's the worst light bleed out of all the tablets I have from the following:
Acer A500 10.1"
HTC Evo 4G View 7"
Nexus 7" 2012
Galaxy Tab 3 10.1"
Galaxy Note 8"
Dell Venue 11 Pro
It's something with these High Resolution Displays. I was going to buy the Galaxy Tab Pro 8.4 but people are complaining about the light bleed.
It's unacceptable and Samsung in knowingly selling them.
I'm not sure I'd call what I'm experiencing on my 8.4 light bleed. The bottom left corner is just slightly darker. Not noticeable in dark(er) screens, but noticeable on lighter apps like Gmail. Will be taking it back to Best Buy for exchange. Kind of annoying to have to set it back up again with all my preferences.
Sent from my SM-T320 using xda app-developers app
I bought a Galaxy Tab Pro 10.1 too. I had an Asus 10.1 tablet prior with no light bleed issues. This one I see 4 light bleed spots on the bottom. My research has led me to believe this is common, sadly. I also see a blue hue when the screen at the bottom is white. But it seems to be different that the light bleed. Neither are horrific that I need to replace it. But it seems if I wanted to, I'd be in the same situation. However I wonder if the back can be popped off as I've seen for the battery replacement, can the lcd be tightened down and fix the bleed through?
Iam confused on which tab to get ,since both are priced similar in the U.K , also this will be my first tablet . few questions i have is
1. Is the AMOLED display of tab s significantly better than that of Note 10.1.( iam impressed by the display of note 10.1 but hadnt used tab s)
2.does the extra 0.4 inch of tab s make any difference?
3.is S-pen really useful productivity tool.
4.Which one is overall a better tablet(VFM).
rkoforever90 said:
Iam confused on which tab to get ,since both are priced similar in the U.K , also this will be my first tablet . few questions i have is
1. Is the AMOLED display of tab s significantly better than that of Note 10.1.( iam impressed by the display of note 10.1 but hadnt used tab s)
2.does the extra 0.4 inch of tab s make any difference?
3.is S-pen really useful productivity tool.
4.Which one is overall a better tablet(VFM).
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I had a note 10.1 2014 till it fell and the screen broke. I replaced it with the 10.5 tab s.
1. Yes, the amoled display is significantly better and nothing compares to it. Watching movies on the note annoyed me because if you weren't at the PERFECT angle, then parts of the image looked slightly washed out compared to the rest of the screen, if not viewing dead on you have the same annoying issue which is compounded by the back light being on on lcd's so the blacks are dark grey and they exhibit the same washed out look if not viewing the screen dead on. Amoled screens don't have either of those issues, even in extreme viewing angles the image on screen is the same as viewing dead on, and the deep blacks are awesome as the pixels are not lit and this alone would have made me upgrade even if my note wasn't destroyed.
2. The screen size difference is negligible and I don't notice a difference really.
3. The S Pen is a very good tool for those who use it. I have a note 3 and don't the s pen with it, but on the tablet I used to use it a lot for school. Note taking on the tablet with an app named Papyrus was very convenient and that is the only thing that I will miss dearly from the note tablet (I'll be so pissed if they announce a Note S before the end of the year)
4. Overall, for the price, I'd have to give it to the Tab s. It's slightly bigger, way better screen, thinner, lighter and has much better battery life. I'll check out getting a stylus later on when school resumes but for now, the Tab s wins.
Sent from my SM-T800 using Tapatalk
I have a galaxy tab s 8.4 and a note 4, spec wise the screens are the same, but the tab s screen looks so much better, can someone tell me why, what am I missing?
From trusted review
this is because Tab S 10.5 has a RGB Stripe display, whereas the 8.4 uses diamond PenTile sub-pixels.
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http://www.trustedreviews.com/samsung-galaxy-tab-s-10-5-review-screen-software-performance-page-2
Edit: Opps I somehow misread the question as why the 10.5 look better. What do you mean better? More vivid colours? The Tab S has 3 different colour modes, two of which is more vivid.