Database Develop

Question about the X1's dpi

I've heard the X1 has a dpi of 310 to 298. I want to know exactly, I searched but i couldn't find a app that tells the dpi. Also does a rom have an effect on the dpi being displayed ? For example Manilla 2.5? Thanks in advance

Would this work?
Multiply 800 x 480 = number of dots
measure the horizontal and vertical length of your X1 screen in inches
Multiply the horizontal length by the vertical length = area of X1 screen
Divide number of dots by area of X1 screen = DPI

ring-bearer said:
Would this work?
Multiply 800 x 480 = number of dots
measure the horizontal and vertical length of your X1 screen in inches
Multiply the horizontal length by the vertical length = area of X1 screen
Divide number of dots by area of X1 screen = DPI
Click to expand...
Click to collapse
Thanks for the reply, I did 384,000 divided by 3.75(width 1.5inch x length 2.5) and got 102,400. That can't be right? What did you get maybe I'm doing something wrong?

Viper89 said:
Thanks for the reply, I did 384,000 divided by 3.75(width 1.5inch x length 2.5) and got 102,400. That can't be right? What did you get maybe I'm doing something wrong?
Click to expand...
Click to collapse
I think you should do 480/1.5 or 800/2.5
or square root of 102400

azaberl said:
I think you should do 480/1.5 or 800/2.5
or square root of 102400
Click to expand...
Click to collapse
Ya the Square root gave me a more realistic number. I got 320dpi. So does that mean we have a retina display according to Steve Jobs with his Iphone 4 with 326 dpi lol. "Retina display" Good one steve haha.

According to this Wikipedia article the display's pixel density is 311 PPI: http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density#Devices_sorted_by_size (sort the table by PPI). The difference between 311 and 326 for the iPhone is minimal, so I guess you could call it a 'Retina display', although personally I prefer the term 'awesome'.

powerfox said:
According to this Wikipedia article the display's pixel density is 311 PPI: http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density#Devices_sorted_by_size (sort the table by PPI). The difference between 311 and 326 for the iPhone is minimal, so I guess you could call it a 'Retina display', although personally I prefer the term 'awesome'.
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Hmm interesting 311, when I do it ring-bearer's way I still get 320 DPI. Is their a difference between DPI V.S PPI? Any way I agree with the term awesome.

Viper89 said:
Hmm interesting 311, when I do it ring-bearer's way I still get 320 DPI. Is their a difference between DPI V.S PPI? Any way I agree with the term awesome.
Click to expand...
Click to collapse
DPI is used in printing where an image is made up of dots. Each dot is one of four colors (cyan, magenta, yellow, black). These dots are similar to subpixels. Because of differences and limitations with printing, most printers need to use many dots to represent a single pixel. PPI is used for displays and digital images. PPI measures whole pixels, whereas there could be ambiguity if DPI is used for a display because dot may refer to a subpixel. Most people and software confuse the terms so in common use they're fairly interchangeable. The most important thing to remember is that a pixel on a display will correspond to many dots in a printed image and so a 5" 300 PPI image on a computer will have more detail than a 5" 300 DPI print from a common inkjet printer.
If you calculate the PPI of the display with this method, you get 311. That method only relies on the diagonal size, which we know to be 3", whereas ring-bearer's method relies on the length and width. I'm guessing that you just measured the dimensions of the screen instead of calculating them (trigonometry isn't very fun), so the difference is probably just from rounding your measurements.

powerfox said:
DPI is used in printing where an image is made up of dots. Each dot is one of four colors (cyan, magenta, yellow, black). These dots are similar to subpixels. Because of differences and limitations with printing, most printers need to use many dots to represent a single pixel. PPI is used for displays and digital images. PPI measures whole pixels, whereas there could be ambiguity if DPI is used for a display because dot may refer to a subpixel. Most people and software confuse the terms so in common use they're fairly interchangeable. The most important thing to remember is that a pixel on a display will correspond to many dots in a printed image and so a 5" 300 PPI image on a computer will have more detail than a 5" 300 DPI print from a common inkjet printer.
If you calculate the PPI of the display with this method, you get 311. That method only relies on the diagonal size, which we know to be 3", whereas ring-bearer's method relies on the length and width. I'm guessing that you just measured the dimensions of the screen instead of calculating them (trigonometry isn't very fun), so the difference is probably just from rounding your measurements.
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K, thanks for explanation . Followed the link in blue and clicked "List of displays by pixel density" and then clicked Sony Ericsson and it has the X1 listed at 312PPI? Typo possibly .

[Q] Why galaxy's S screen looks worse than iphone's 4 ?

if the galaxy S' screen is known to be way better than the iphone 4 ( AMOLED vs Retina ) then how come when i hold my friend's iphone i see his phone's display looking wayyy much better than my galaxy ? even at full brightness , mine still looks yellow/ or darker than his screen
iam using Hybrid rom / semaphore kernel
and i get these results or worse on different roms and kernels , any idea why and how to fix it ?

well I have compared an iPhone and my sgs and their is no comparison, mine was way better. Both were at fully brightness , that time I was at 2.3.4 jvr stock.
Sent from my GT-I9000B using xda premium

You can use Voodoo colour to adjust the colour settings.

Iphone's has higher resolution.
Sent from my SGH-T989 using XDA App

ali1276 said:
Iphone's has higher resolution.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
Probably what he says he correct. I'm no expert, But if you look real close at the display screens (you can notice this on letters), You can see the dots (pixels) that made up each letter (or an image) on galaxy S. (and S ii as well).
But on iPhone, The Pixels are not visible, thus makes the image more smooth and clearer.

Screen on my SGS II looks great. Fonts look smooth and clear; even small font sizes. IMHO, I think the the Super AMOLED+ display looks much better than the screen on the iPhone 4. It's brighter, has far better color saturation, and is more energy efficient. I prefer AMOLED displays over traditional LCD because AMOLED displays have self illuminating pixels, which means no backlighting is needed, making for an evenly lit display. (no bright spots or shadowing).
If I've helped you in any way, please click the "thanks" button.
Sent from my Samsung SGH-i777 using XDA Premium

My uncle has an iPhone4 and his screen may be more crisp, but the colors on my sgs is so much better.
If you want the best screen available buy a galaxy nexus, the screen has almost (just a few procent) the same ppi as the iPhone, but its a super amoled screen so the colors are much more vivid then the iPhone.
Mathijs
Sent from my GT-I9000 using Tapatalk

I phone's screen is 3.5" and sgs's screen is 4.0" and so even if they had equal resolutions then iPhone would have came out better . Here we are talking about brightness and colours and I don't believe iPhone has any comparison with this beauty I am typing this reply on.
Sent from my GT-I9000B using xda premium

The screen of the Galaxy S IS better. Maybe you were not at full brightness oder sth like that ..
It's really supposed to be better, like the people before me posted.
A iphone user will say "mine is better" .. don't mind

YEA64 said:
The screen of the Galaxy S IS better. Maybe you were not at full brightness oder sth like that ..
It's really supposed to be better, like the people before me posted.
A iphone user will say "mine is better" .. don't mind
Click to expand...
Click to collapse
Haha, maybe he was at low battery when he compared his sgs with iphone .

Iphone has way more pixels than the i9000. plus iphone does not use pentile.
iphone is 960x640 x 3 (normal rbg is 3 subpixels per pixel)= 1 843 200 subpixels
samsung i9000 is 800x480x2(pentile is 2 subpixels per pixel) = 768 000 subpixels
1843000/768000=2.4
so iphone has 2.4 times more subpixels than the i9000.
plus iphone has a small smaller screen, considering all these factors, iphone will no doubt look better. But ask yourself, how much marginal utility (real usable benefits) would you get out of a such high density screen?
My answer is there is no really extra benefits you can get out.

investmenttechnology said:
Iphone has way more pixels than the i9000. plus iphone does not use pentile.
iphone is 960x640 x 3 (normal rbg is 3 subpixels per pixel)= 1 843 200 subpixels
samsung i9000 is 800x480x2(pentile is 2 subpixels per pixel) = 768 000 subpixels
1843000/768000=2.4
so iphone has 2.4 times more subpixels than the i9000.
plus iphone has a small smaller screen, considering all these factors, iphone will no doubt look better. But ask yourself, how much marginal utility (real usable benefits) would you get out of a such high density screen?
My answer is there is no really extra benefits you can get out.
Click to expand...
Click to collapse
+1 and great maths.

I think this guy is trolling here!

Blah blah blah. The retina display has higher pixel density; so what. This forum is about Android, not iPhone. I think I speak for most when I say that nobody cares about the iPhone or it's retina display. Apple's idea of state of the art is a recycled iPhone 4 with 3g? I'll pass. You fanboys can keep your overpriced, old technology.

Iphone edges out the sgs in a number or screen aspects, but SGS has two extremely important and significant advantages.
1. Screen size - ip4 screen is tiny. higher resolution helps out but it's just more comfortable and practical to use a bigger screen.
2. Contrast - ever since I looked at the superamoled, all other screen contrast has been ewww (iphone, ipad included), especially in darker settings.
For that, my next phone must have amoled plus a screen size >= 4"

iphone4;
+more pixels (high resolution small area)..
sgs;
+good color
+good contrast
+bigger

the reason why your screen may be darker is because AMOLED screen tend to wear down over time.

the only problem in my case is the battery i ve SGS1

Back light displays are passe.

AMOLED at this state is not the future technology.
Why?
It dies so fast (burn-in effect shows this), and maybe after a year it could lose third of the initial brightness.
Just look at the new LCDs over 1000 nits and reduced power consumption, viewing angle needless to speak of, and many more improvements, AMOLED gain sharpness, and lost some brightness, burn-in still there, and some other problems.
I had Samsung Wave and then SGS and returning to SGS 2 or Galaxy Nexus is a no go since there is no improvement on this field (give big cash and worry about how long was the status bar on, so it won't burn in, give me a brake).
Amoled is yet to grow or die...

[Q] How bright is the screen?

I like every aspect of nexus 6
but i'm a bit worried about the brightness of the screen
since AMOLED are kind of infamous for not able to use outdoor
I'm guessing the screen will be similar to Moto X 2014
Anyone who own the phone, can you please share the experience for using the phone under bright sun?

MrHardplastic said:
I like every aspect of nexus 6
but i'm a bit worried about the brightness of the screen
since AMOLED are kind of infamous for not able to use outdoor
I'm guessing the screen will be similar to Moto X 2014
Anyone who own the phone, can you please share the experience for using the phone under bright sun?
Click to expand...
Click to collapse
That's the important question. This year's AMOLED's (Galaxy S5, Note 4, Tab S) were very bright... but last year's AMOLED's (Galaxy S4).. not so much. Note 3 was fine however.

some review says moto X 2014 has poor outdoor visibility
and according to phonearena screen measurement, the moto X only has a maximum brightness of 385 nits
Now i'm seriously worried about the N6.....
I will accept anything higher than 450 nits, but 385 nits is just way too low
btw, I always never understood why maximum brightness is not part of the standard specs, it's an important factor, sometimes it's more important than pixel density or color saturation

While I will take all the brightness I can get, I have only struggled a few times with my S4 outdoors. I just don't use my phone all that much in full sunlight. Maybe check a football score during my kid's soccer game. Not exactly mission critical, but I guess it would be nice if it were easier. I certainly wouldn't give up the superior blacks the other 99.99% of the time. But given the awesome screens on the latest Samsungs, we should be able to have our cake and eat it, too.
Sent from my GT-I9505G using Tapatalk

It's about this bright [emoji295]️[emoji295]️[emoji295]️

Its brightness is 270 nits (quite dim when you go by the numbers)
While its 850+ on my z3!
I guess I won't be selling my z3 for a n6 after all!

As with most single specs, the luminance in nits only tells part of the story. I'll wait to see what the N6 screen looks like in full sun before making a final decision.

gtalum said:
As with most single specs, the luminance in nits only tells part of the story. I'll wait to see what the N6 screen looks like in full sun before making a final decision.
Click to expand...
Click to collapse
Very true. Amoled screen have very different reflective properties when compared to an LCD IPS screen. The outdoor viewing experience could and should actually be really good based on all the reviews.
Sent from my Nexus 9 using Tapatalk

gtalum said:
As with most single specs, the luminance in nits only tells part of the story. I'll wait to see what the N6 screen looks like in full sun before making a final decision.
Click to expand...
Click to collapse
scandalousk said:
Very true. Amoled screen have very different reflective properties when compared to an LCD IPS screen. The outdoor viewing experience could and should actually be really good based on all the reviews.
Sent from my Nexus 9 using Tapatalk
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Click to collapse
Based on reviews the screen looks less vivid, less sharp and more dull than the Note 4. The visibility is less also; many reviewers claim the screen has great PPI but overall is not amazing. No surprises here - Samsung saves the best screens for themselves and everyone else gets rejects. For that reason I would've used an IPS display, like the iPhone 6+ (which has great visibility in sunlight, sharp and good colours).

spartanm99 said:
Based on reviews the screen looks less vivid, less sharp and more dull than the Note 4. The visibility is less also; many reviewers claim the screen has great PPI but overall is not amazing. No surprises here - Samsung saves the best screens for themselves and everyone else gets rejects. For that reason I would've used an IPS display, like the iPhone 6+ (which has great visibility in sunlight, sharp and good colours).
Click to expand...
Click to collapse
If that's the case then Google clearly chose the ambient display (which requires amoled) over an IPS display. The note 4 arguably has the best screen in the world and we don't don't know if Google could get their hands on the iPhone 6 display. Maybe they tried and still couldn't get it.
Google can still calibrate the display properly. We'll just have to wait and see.
Sent from my Nexus 9 using Tapatalk

scandalousk said:
If that's the case then Google clearly chose the ambient display (which requires amoled) over an IPS display. The note 4 arguably has the best screen in the world and we don't don't know if Google could get their hands on the iPhone 6 display. Maybe they tried and still couldn't get it.
Google can still calibrate the display properly. We'll just have to wait and see.
Sent from my Nexus 9 using Tapatalk
Click to expand...
Click to collapse
We can also, you know...Make calibrations ourselves as well once Custom Kernels make their rounds..
If colour reproduction is an issue we should have little to worry if we can modify it in due time.

Here's how to find out - go look at one yourself before purchase.

darkrai said:
Its brightness is 270 nits (quite dim when you go by the numbers)
While its 850+ on my z3!
I guess I won't be selling my z3 for a n6 after all!
Click to expand...
Click to collapse
You are going to have to post a source for that, because I dont believe the Z3 has 850nit brightness at all. A quick Google search showed nothing of the sort either.

EniGmA1987 said:
You are going to have to post a source for that, because I dont believe the Z3 has 850nit brightness at all. A quick Google search showed nothing of the sort either.
Click to expand...
Click to collapse
http://m.gsmarena.com/sony_xperia_z3-review-1140p3.php
Go to display section
As a Nexus 4 user, i really love this screen! Its screen colors are like bundis ip5 profile (screen color tuning) with even more whiter whites and superb brightness!
Google for nexus 6
Had to search a lot for nexus 6's

Dr Faustus said:
We can also, you know...Make calibrations ourselves as well once Custom Kernels make their rounds..
If colour reproduction is an issue we should have little to worry if we can modify it in due time.
Click to expand...
Click to collapse
i am happy this was answered so i didn't have to make a post just to make sure. i know i have options for dpi and auto brighness controls on my gs2. but i have to wonder why they set it so low in the first place? was it for battery savings? is it because the reflectivity is so good that it didn't need to be higher? is it because it will burn out the organics? if the gs3, 290 nits, was good enough to see outside then i guess this one will be also. it just sucks that it is so low. and i don't know if i would want to trust a kernel that raised it.

darkrai said:
http://m.gsmarena.com/sony_xperia_z3-review-1140p3.php
Go to display section
As a Nexus 4 user, i really love this screen! Its screen colors are like bundis ip5 profile (screen color tuning) with even more whiter whites and superb brightness!
Google for nexus 6
Had to search a lot for nexus 6's
Click to expand...
Click to collapse
Sony smarthones have the worst display ever. turn off bravia engine (contrast and vivid) and you will love motorola 720i ;P

PhoneArena state the Nexus 6 is 270nits.
& the Nexus 5 is 485nits
Yet, I'm pretty sure we've seen both phones on Max brightness next to each other with the Nexus 6 being brighter.
In fact, every video I've seen with both the Nexus 6 & Note 4 has shown the Nexus to have the brighter screen with much better whites.
.....explain!?

chrisjcks said:
brighter screen with much better whites.
.....explain!?
Click to expand...
Click to collapse
Much better whites? Yes I think so. Brighter? Where on earth did you see it brighter than note 4? Please share a link?
Thanks

plasmastate said:
Much better whites? Yes I think so. Brighter? Where on earth did you see it brighter than note 4? Please share a link?
Thanks
Click to expand...
Click to collapse
Every video I've seen with both phones together.
If the Nexus 6 is supposed to only be 270nits, how is this possible?
I've also seen an image of the Nexus 5 & 6 together on Max brightness with the 6 being brighter.
Nexus 5 is 485 nits so PhoneArenas 270nits claim makes no sense at all.
Even in PhoneArenas own video, the Nexus looks brighter than the Note 4, easily visible during browsing & the video benchmark etc.
Google Nexus 6 vs Samsung Galaxy Note 4: http://youtu.be/afOEn-zm_y0

It's funny because when I was playing with the Note 4 in a Sprint store I was surprised to learn that the screen was at full brightness. It didn't seem all that bright to me.

Nexus 6's display compared to Note 4?

Is the AMOLED screen on the nexus 6 going to be the latest generation AMOLED screen?
If it's not the latest Note 4 screen, and looks something like the Note 3, then I'm not going to be a big fan of the screen... Are there any reviews on the display yet?

Chances of it matching Note 4 display are very slim. Samsung will of course keep its best panels for itself, like in the past.

Sigh, I wish note 4 had a stock Android option then...

Android police says that the 6 is even dimmer at first glance than the X. Not that it should matter in realy world readability and color accuracy, but I suspect that Note 4 would win out on quality.

floepie said:
Android police says that the 6 is even dimmer at first glance than the X. Not that it should matter in realy world readability and color accuracy, but I suspect that Note 4 would win out on quality.
Click to expand...
Click to collapse
Liam, of Android Police was referring to the minimum brightness level between the two devices. As far as max brightness is concern, he stated that the device was brighter than the Nexus 5 as shown in the first attachment

journeyman73 said:
Liam, of Android Police was referring to the minimum brightness level between the two devices. As far as max brightness is concern, he stated that the device was brighter than the Nexus 5 as shown in the first attachment
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This is superb news! The N5 screen gets very bright IMO and am happy to see the N6 outdoes it

jbdan said:
This is superb news! The N5 screen gets very bright IMO and am happy to see the N6 outdoes it
Click to expand...
Click to collapse
Lol, that's only in the dark. It appears that the N5 gets dimmer.

Note 4 Vs Nexus 6
http://forum.xda-developers.com/showpost.php?p=56143803&postcount=39

We are talking AMOLED vs Super AMOLED... From what I've heard, S-AMOLED keeps all of the advantages of LCD displays when it comes to the outdoors... I'm expecting the N6's display to be a tad better than the Galaxy Note 3, but definitively not on par with the Note 4...

iZack187 said:
We are talking AMOLED vs Super AMOLED... From what I've heard, S-AMOLED keeps all of the advantages of LCD displays when it comes to the outdoors... I'm expecting the N6's display to be a tad better than the Galaxy Note 3, but definitively not on par with the Note 4...
Click to expand...
Click to collapse
Pretty sure that Super AMOLED is just a trademarked name by Samsung. Probably not much difference at all between one or the other as far as technology goes.

Super amoled is just samsung copyright. ...but is a little different they put a anti glare film between the digitizer and glass ....

Watch the Engadget hands on review. The screen appears to get very bright. He is in a well lit area too that usually washes out a screen.

There was a comparison video that showed max brightness of moto x (2014), nexus 5, nexus 6, and galaxy s5. The nexus 6 was not as bright as the galaxy s5, but brighter than the nexus 5 and moto x.

Yeah, it's plenty bright. I'm not worried about the screen at all at this point. My only concern is will I be able to get it from VZW and it still be able to unlock the bootloader. The Nexus 6 is all about the development available on top of being a super phone all in all.

I've noticed first impression articles-videos mention that the Note 4 display colors are more "punchy" (perhaps more color satured by default) but the Nexus 6 (while the handset is only marginally larger) is described as big & beautiful with superior speakers-overall performance.
This video showed up Nov 4 in case missed:
Ref: https://www.youtube.com/watch?v=Vj4wRSx55wY
Ref: http://cdn.gottabemobile.com/wp-content/uploads/Nexus6vsNote4-2-620x412.jpg

SMARTPHONEPC said:
I've noticed first impression articles-videos mention that the Note 4 display colors are more "punchy" (perhaps more color satured by default)
Click to expand...
Click to collapse
Well there's no point unless he sets the screen mode to Basic on the note 4

SMARTPHONEPC said:
I've noticed first impression articles-videos mention that the Note 4 display colors are more "punchy" (perhaps more color satured by default) but the Nexus 6 (while the handset is only marginally larger) is described as big & beautiful with superior speakers-overall performance.
This video showed up Nov 4 in case missed:
Ref: https://www.youtube.com/watch?v=Vj4wRSx55wY
Ref: http://cdn.gottabemobile.com/wp-content/uploads/Nexus6vsNote4-2-620x412.jpg
Click to expand...
Click to collapse
Do we know if those are on Max Brightness or auto brightness?
As the Nexus 6 definitely looks brighter.

iamhacked said:
Well there's no point unless he sets the screen mode to Basic on the note 4
Click to expand...
Click to collapse
I'd assume they are both on their default screen modes. Even on my Note 2, I have played with the other screen modes briefly but they seem more dull than the default standard mode.
---------- Post added at 09:50 PM ---------- Previous post was at 08:58 PM ----------
chrisjcks said:
Do we know if those are on Max Brightness or auto brightness?
As the Nexus 6 definitely looks brighter.
Click to expand...
Click to collapse
In that video at http://www.gottabemobile.com/2014/11/04/nexus-6-vs-galaxy-note-4-size-comparison/ I'd assume they are both on their respective max brightness (not auto brightness).
From my long post at http://forum.xda-developers.com/showpost.php?p=56143803&postcount=39 I think the Nexus 6 may actually be brighter on max brightness (>400 nits) while the Note4 in direct sunlight may be worth switching to auto-brightness since according to http://www.androidbeat.com/2014/09/displaymate-praises-galaxy-note4-amoled-display-performance/ max brightness could go from 400 nits up to 750 nits:
"On the brightness side, the Galaxy Note 4’s AMOLED display can go as bright as up to 400 nits in manual mode, which is comparable to displays of the same size. Under Automatic Brightness mode though, the Note 4’s display can reach a brightness level of up to 750 nits. Even the minimum brightness levels of the display is an impressively low 2 nits.
The Reflectance score of 4.8% indicates that the Note 4’s display will be clearly visible even under direct sunlight without the need for the user to squint their eyes."
The following screenshot at 40 seconds from https://www.youtube.com/watch?v=5Fn8OnzDO5Y indicates they were both on max brightness (auto brightness not checked on Note 4):
Ref: http://i61.tinypic.com/105bayx.jpg
Ref: https://www.youtube.com/watch?v=5Fn8OnzDO5Y (Nexus 6 vs Note 4 comparison outdoors on max brightness-but auto brightness not checked where the Note 4 is claimed to go from max manual 400 nits to 750 nits)
Ref: https://www.youtube.com/watch?v=Vj4wRSx55wY (Nexus 6 vs Note 4 comparison indoors with unknown brightness levels but assumed they were set to same manual max brightness)

Display Question ?

Hi, i'm currently using Nexus 4 and want to know the display array of Nexus 6. it's important for me cause i care about the display performance. Super AMOLED is using Pentile array on sumsung devices, but i don't what's array technology on nexus 6. i like RGB more than Pentile.
so, can you guys check it for me ? i mean i want to know whether the display uses RGB array or Pentile array of nexus 6's display.
thx in advance.

Diamond PenTile matrix.

this was a big issue with lower resolutions, but with how over the top we've gotten in resolution (2k is WAY more than we need) there really isn't any reason to worry IMHO.