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Nexus S Screen Size 4" ?

Just curious..
I have both the motorla atrix which is a 4inch screen and the nexus S which samsung says is a 4 inch..
but when i measure the top of the actual screen of the nexus s to the Atrix
The atrix is longer, top to bottom,
corner to corner it seems the same,,

4 inches is the diagonal corner-to-corner measurement.
Sent from my Nexus S using XDA App

matt2053 said:
4 inches is the diagonal corner-to-corner measurement.
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That's correct, all screen measurements are along the diagonal. Some phones have the same diagonal measurement but may have wider or taller screens with different aspect ratios. For instance the iPhone 4 has a shorter and noticeably wider screen than the HTC Desire which is taller and more narrow. The Motorola Atrix has a qHD display that is again a different aspect ratio and looks a bit odd with the current software on the Atrix as it adds extra pixels that makes the icons smaller on the display. It's just a numbers game...one 4" display can be different from another 4" display. Which is why some companies are promoting display resolution numbers instead since 940x540 is "bigger" than 800x480. And other companies promote physical display size since 4.3" is bigger than 4.0" displays.
So basically it doesn't mean much when you get a measurement tool out and compare phones. Does it work for you is a more important question.

Great example of this, is the Evo and Droid X, they are both 4.3 inch displays but the Evo is wider while the Droid is longer. It's just different resolutions, and by the way you measure screens diagonally
Sent from my Xoom

Two phones with same display size & resolution but different pixel visibility

I have two android phones. Both of them have the same resolution and similar display size (as per company specifications), TFT capacitive touchscreen, 256K colors, WVGA resolution 480x800 pixels. The only small difference is..one has a display size of 3.5 inches and the other 3.75 inches....not much of a difference.
However, the phone with the 0.25inches larger display size shows pixel grids horribly and in the other one it doesn't show at all. What could be the reason? I also see banding on the larger display, which is not present in the other.
The larger display seems like a display with much less actual resolution. Does phone resolution specs on paper of the larger display lie? How do I check the actual resolution of a display?
The attached image below shows what I mean by pixel grids being visible.

It also depend on the technology being used (TN panel, IPS or AMOLED), the quality control come into play, and subpixels arrangement. Paper spec for display are useless, it's better to see the phone in person.

Galaxy S5 rolling out with 2560x1440???

HI,
As a Korean who is waiting for galaxy s5, I am recently reading about Korean articles that notifies me with latest rumors about Samsung's next upcoming phone and figured out that Galaxy s5 will be likely to roll out with a 2560x1440 556ppi display. I personally think this is a meaningless over spec since there are no advantages to it... Here are why
1. 5xxppi displays won't be sharper and won't display more contents than current 4xxppi (FHD) displays.
I have seen both Optimus G and G2 which sport around 320ppi and 420ppi displays respectively. Unlike the specs suggested I did not feel G2 was sharper than optimus G since 320ppi is so dense already (Jobs's retina propaganda is right I guess...).
Also one of the main benefits of using a higher resolution display is that higher res displays can display more stuff on a single screen. However, I found G2 does not display 33% more stuff than optimus G does even though it should. g2 probably can do it but doing so will make texts extremely small. 5 in. displays have limit due to its small size and raising resolutions do not make it to display more contents. This tells that even every pixels of FHD displays cannot be used effectively, meaning same thing will happen to 2560x1440 displays with even more wasted pixels.
2. Higher resolution displays drains more battery
If there is no advantage in doing so, why would waste battery in vain?
3. 2560x1440 resolution = pentile display
It is quite obvious. Making high PPI displays with AMOLED is extremely hard since putting pixels together is a difficult task. As you guys all know, pentile has been a gimmick Samsung has been using for a long time to produce displays with higher PPI without actually putting pixels only 66% dense as the PPI on the spec sheet. It seems like Samsung thinks this gimmick is something acceptable since average customers do not even know what the pentile means. If Samsung goes for 2560x1440 resolution, they will make it pentile for sure. I have seen people saying pentile does not matter since the Galaxy s3 since the pixels are dense and no one can tell the difference. I do agree to some extent but color distortion is quite apparent in pentile displays... Especially white which requires all RGBs to be turned on.
If Samsung can produce pentile 2560x1440display, they can probably produce RGB FHD display with S-Stripe. I think the RGB FHD display will make more sense.
Thank you for reading this long writing.
Please share what you guys think about Samsung trying to use 2560x1440 display on GS5
Sent from my Nexus 7 using xda app-developers app

Mod Edit
Thread for discussion/speculation/rumors is HERE
Thread closed
malybru
Forum Moderator

Aspect Ratios for Phablet Screens?

Hello,.
My current phone for years has been the Samsung Galaxy S4. I believe the aspect ratio of its screen is the same as a standard wide-screen movie (or wide-screen TV, 16:9. It seems like 16:9 widescreen is standard for laptops now too. (Although i preferred the older 4:3 taller laptop screens.) Likely desktop monitors as well. I think Android and Windows tablets are all 16:9 as well, although the Ipad (at least the older ones) is 4:3. So I think the 16:9 aspect ratio of my Galaxy S4 screen is pretty standard now for most types of screens, including phones 5 inch screens and under.
I am thinking of getting a bigger screen phone, or phablet. Although there are disadvantages with the increased size, I also see advantages, especially with my aging eyes, and think it might somewhat be able to function as a small tablet, while still fitting (even if not as well) in a front (male) pants pocket..
I think the size for a "phablet" is considered 5.5 inches and higher. Many are 5.5 inches, some 5.7 inches, and some even larger, such as 6 inches. By far the most common though, seem to be 5.5 and 5.7 inches.
I understand that the reported measurement of screen size is the diagonal measurement, from one corner diagonally across.
Well, there could be different combinations of height and width that would end up measuring 5.5 inches diagonally, for example.
So my first question is-- does a designated screen size of 5.5 inches refer to a specific screen height and width, or are there multiple different 5.5" screen sizes, that all end up being 5.5" diagonally? Or is it standardized?
I compared my S4 with a 5.5" screen phone in a store. The 5.5" phone was only slightly wider, but MUCH longer than my S4. (That description is holding the phone portrait, of course.) As the S4 is already standard widescreen aspect ratio, that would make the phone I saw much wider (if landscape) or longer (if portrait) than standard widescreen movies, TVs, laptops, Android tablets, etc. I can understand why they might not want to make the phone much wider, making it harder to hold. On the other hand, one wonders how valuable a larger screen is if the increase in size is mostly in one direction, and the aspect ratio of the screen becomes so skewed, so much longer and narrower (portrait) than other screens?
However, regarding my earlier question- if 5.5" screen size is not sometihng standardized, but could be different combinations of height and width to add up to 5.5" diagonally, then all 5.5" phones might not have that skewed extra long and narrow screen aspect ratio? Which is it? All 5.5" screens the same height and width (of screen, not phone), or do they differ?
If one goes larger than that, to 5.7 inch, might that more likely add width as well as length, to have a more normal aspect ratio? Or do those still keep a similar width (in portrait), while adding still more length, to create an even more skewed longer and narrow (portrait) aspect ratio?
I am eager to hear whatever info and insight you have on this issue. Thanks in advance for your input.

Although I have a new phone now, I am still curious about this question. For instance, whether a 5.5 inch screen, referring to the diagonal measurement, refers to a standardized screen height and width, or whether that might differ among phones, only that the diagonal measurement ends up at that number?
And other questions I asked in the OP.
Thank you.

Is the OLED using Pentile or RGB subpixel?

Does anyone know? There is a big difference especially if the screen is bigger and the resolution is not quad HD. If you do not know how to tell them apart, just google pentile vs rgb
https://www.google.ca/search?rlz=1C1CHBF_enCA789CA789&tbm=isch&sa=1&ei=nX3HW_zyMuTH0PEPqb-uyAE&q=pentile+vs+rgb&oq=pentile+vs+rgb&gs_l=img.3..0j0i7i30k1.99779.100357.0.100738.2.2.0.0.0.0.68.109.2.2.0....0...1c.1.64.img..0.2.108....0.NDFhIw5uI5c
EDIT: Answer found, Pentile display for Honor Note 10

Debatable. This is a big screen phone not the typical 5.5 inch ones back in the day. I still want to know if this is rgb or not. I have a mi max 3 and the screen is pretty good

It is almost sure pen tile. As I know, only tab s and tab s2 hase pure rgb matrix... I had and have both tabs. And had at least 15 different phones, also flagships between them,wirh pentile
Picture quality is night and day... You can never get that accuracy of colors in pen tile.

SmartPhonesFan said:
it is amoled .. from samsung ..
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Everyone knows that from the spec sheet. I'm talking about the subpixel arrangement. RGB vs pentile diamond layout. It makes a difference on a big display

​
SmartPhonesFan said:
it is amoled .. from samsung ..
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SmartPhonesFan said:
i bet samsung has only one type of amoled .. or 2 amoled and super amoled .. so try google it
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Before I made this thread I did that, no answer can be found. I'm trusting the owners of this phone on this site to help find the answer.

Answer found. Pentile display said by Frankie Tech. He says it in his video around the 8:17 mark. He said Honor 8X LCD is sharper than Honor Note 10

Hi,
Me, I have the device for a few hours, and I must say that I find the display really good.
I even tried to downgrade it to lower resolution and it still looks good with no real difference in sharpness. Now, I am almost 50 years old and so maybe my eyes are fooling me... so don't trust this too much. But I'm pretty sure that for "daily use" it is more the enough.
There's one thing that bothers me though : it is that slightly blueish tint it's getting when viewed at about 20°C vision angle. Not as bad as on earlier LG displays, but still there. Noticeable only on white backgrounds It's common "disease" for OLED/AMOLED displays.
Anyways, how can I say it's pentile or RGB ? The link provided explains the difference but doesn't say how to check does it ?
Regards.

NexusPenguin said:
Hi,
Me, I have the device for a few hours, and I must say that I find the display really good.
I even tried to downgrade it to lower resolution and it still looks good with no real difference in sharpness. Now, I am almost 50 years old and so maybe my eyes are fooling me... so don't trust this too much. But I'm pretty sure that for "daily use" it is more the enough.
There's one thing that bothers me though : it is that slightly blueish tint it's getting when viewed at about 20°C vision angle. Not as bad as on earlier LG displays, but still there. Noticeable only on white backgrounds It's common "disease" for OLED/AMOLED displays.
Anyways, how can I say it's pentile or RGB ? The link provided explains the difference but doesn't say how to check does it ?
Regards.
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Click to collapse
It's easy to tell by experience at looking at screens especially on a big screen even on a 5.5 inch screen I can tell the difference/ Oneplus owners have complained about their displays being not as sharp too because they use 1080p pentile displays now imagine this on an even bigger screen like the Honor Note10, 8X and 20X.
The one method to use is to drop bits of water on a screen displaying text and use a magnifying glass then you can examine the subpixel arrangement to determine if it's pentile or rgb. Smaller drops of water magnify the pixel more and largers drops magnify less
This is example is a RG/BW LCD which is also blurry. Notice how this display has the blue in a diamond pattern similar to a Pentile layout. This makes text and edges of icons and pictures and finer detail look blurry.
http://i.imgur.com/yS4djZz.jpg
A traditional RGB LCD has all the colors in a straight line
https://www.phonescoop.com/img/g/489_9cdf1622caf8656bee9d377123e7817f.jpg
I'm fine with pentile on a 2560x1440 or higher display but not on anything lower as it's noticeable
These are pictures of my mi max 3 6.9 inch lcd display. Rgb layout, red blue green all in a straight vertical line. One of the reasons why I picked the max 3 over the note 10 was the display sharpness and accurate color reproduction.