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Its strange but noticed that my phones whit coloring looks a little more greenish than my.friends vibrant. And then i compared my captivate to my gfs and here whites r more white colored like my friend.
I don't get it, did a lot if the models come with different screens that display differently?
Sent from my SAMSUNG-SGH-I897 using XDA App
The Captivate has the AMOLED screen.......the only one....
iamcombat said:
The Captivate has the AMOLED screen.......the only one....
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It has a Super AMOLED screen...
The Captivate has the AMOLED screen.......the only one...
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seems like someone needs a little more research
wait what no the whole entire galaxy s line has super amoled hmm its maybe the tint thats changed a little
A Super ALOMED screen is still AMOLED.
Anyway, just because it is the same model screen doesn't mean there are not variations in the mfg process that could cause slight differences. With the amount of screens that they are pushing out I am sure they are using equivelent components that may not be exactly the same.
Also depending on the allowed tollerances, 2 screen with slighly different temperature ratings could both still pass QA.
Personally my screen is very cold, whites tend to have a slight tint of blue to them. I prefer warmer displays but the SAMOLED is too nice to ignore even if the picture is cold.
It's possible that the screens are going through a rapid break-in process and the screens look different because they have been used different amounts.
Or it could just be differences within manufacturing tolerances.
Well this all makes sense. Mine has a greenish tiny, my gf and frie.d have a warmer orange redish tint and i have a lil blue green tint.
This follows the rgb thing in a way. I think different screen manufacturers favor one of the latter.
Sent from my SAMSUNG-SGH-I897 using XDA App
That's funny cause the AT&T commercial specifically says "The first and only Super AMOLED screen" or something of that nature....
screen is fine, got mine on launch day,,,im sooooo loving this phone,i was using omnia2....
SlimJ87D said:
Well this all makes sense. Mine has a greenish tiny, my gf and frie.d have a warmer orange redish tint and i have a lil blue green tint.
This follows the rgb thing in a way. I think different screen manufacturers favor one of the latter.
Sent from my SAMSUNG-SGH-I897 using XDA App
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Only samsung makes the the screen for this phone.
iamcombat said:
That's funny cause the AT&T commercial specifically says "The first and only Super AMOLED screen" or something of that nature....
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AT&T says a lot of things.
The entire Galaxy S line up has Samsung's "Super AMOLED" screen.
k2snowboards88 said:
Only samsung makes the the screen for this phone.
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They may make the screen, but that doesn't mean they make all the materials used to manufacture the screen.
Different materials cause wider manufacturing tolerances. It's not different manufacturers favoring one color over another in this situation.
I really wish there could be a straight answer instead of speculating why our phones are cooler and warmer in color. I mean the screen still looks freakin great, but i wonder if there is a way to manipulate it through software.
Sent from my SAMSUNG-SGH-I897 using XDA App
I agree. I would love it if phones finally started letting you adjust color temperature like computers.
My screen is also blue. I´m waiting it to go away in time, but I´m really sceptic about it...
It´s easy to test after you download somekind of a flashlight app and use it in the dark, mine gives the same blueish light like those cheap led-flashlights, so definytely not real whites in my unit...
Amoled said:
My screen is also blue. I´m waiting it to go away in time, but I´m really sceptic about it...
It´s easy to test after you download somekind of a flashlight app and use it in the dark, mine gives the same blueish light like those cheap led-flashlights, so definytely not real whites in my unit...
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There is no such thing as real white when it comes to light (what your screen is putting out). I would prefer the screen to be warmer, but it is still white.
For more information look up color temperature.
The HTC Desire and Nexus one on Cyanogen Mod both allow you to adjust gamma settings via software. So this can definitely be corrected. All it requires is additional dev magic and a dab of patience.
ozy944 said:
The HTC Desire and Nexus one on Cyanogen Mod both allow you to adjust gamma settings via software. So this can definitely be corrected. All it requires is additional dev magic and a dab of patience.
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That's interesting,i hope someone is working on color temperature too.
Somebody else mentioned it but "manufacturer tolerance" is what causes this. It would be possible to make them all exactly the same, but the costs of the device would go up significantly. Usually the difference is so minute that most people never notice.
You see the same thing with mass produced digital projectors and tvs. If you were to take 10 new projectors of the same model and line them up side by side you would find not all the pictures were exactly the same. Due to manufacturer tolerance some may be slightly brighter or dimmer and colors may be a little more vibrant on another.
Blue Tint
Yes, Super Amoleds are coming in all forms of Tint. Some are lucky to get nice warm whites. Other people get green, blue, greenish blue, or even yellow tints.
maybe even pink tint like the amoled on zune hd
SAMSUNG GET YOUR ACT TOGETHER!
Is there any way to change the color calibration on the display? I want to raise the blue levels because I'm a bigger fan of a cool color tone and the whites on the g2x are more than an off white. (compared to my mt4g with good lcd where whites are bright white)
I have heard about the color calibration hack for the nexus one but I don't know if it'll work on the leaded gingerbread ROM from paul o'brien
If you don't know what I'm talking about go to the color settings on your computer monitor or tv and change from "cool" to "normal". The g2x is more like the normal setting while i like the cool setting better.
I posted a link already. There is a calibration tool in the Nexus One forums that you can use. I don't think the G2x needs it though. Mine looks natural.
player911 said:
I posted a link already. There is a calibration tool in the Nexus One forums that you can use. I don't think the G2x needs it though. Mine looks natural.
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I'm fine with all the colors except for white, I'm a bigger fan of a more bluish white like on the iphone.
I'll give the nexus one thing a try but i think a bunch of people who tried it on the g2x it force closed. Not sure about the leaked gb rom though so I'll try it and report back
the flash aborted because it says amend scripting is no longer supported since android 1.5?
I also tried installing both apk's and they both force close when I try to do anything
pretty sure you have to be on cm7 for it to work
Is it just my specific device or are the whites on this phone not really true white but more like off-white? If u compare it to the mytouch 4g with good lcd there's a big difference. Although this device does have truer blacks.
Sent from my LG-P999 using XDA App
Every LCD is different. Even if the phones are the same model. Mine has a bit of a red tint when showing white but its only noticeable if I look at it next to my Vibrant.
regP said:
Every LCD is different. Even if the phones are the same model. Mine has a bit of a red tint when showing white but its only noticeable if I look at it next to my Vibrant.
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I know different phones have different color tones but I just wanted to know if it was just my device where whites weren't true white because some people have been talking about a yellow or orange tint. I'm expecting a replacement phone to arrive next week so I guess I'll do a comparison when it arrives.
Looks fine to me, but really I'm all about resolution. Colors can vary and sounds can be medium quality and I probably won't notice a difference.
xdmds said:
I know different phones have different color tones but I just wanted to know if it was just my device where whites weren't true white because some people have been talking about a yellow or orange tint. I'm expecting a replacement phone to arrive next week so I guess I'll do a comparison when it arrives.
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I answered that.
Every LCD is different. Even if the phones are the same model. Mine has a bit of a red tint when showing white but its only noticeable if I look at it next to my Vibrant.
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Meaning if you took a number of G2x and put them side by side none of them would be completely identical. So its not just you that has a slightly off screen.
regP said:
I answered that.
Meaning if you took a number of G2x and put them side by side none of them would be completely identical. So its not just you that has a slightly off screen.
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Well thats why I want to change the color settings because the high levels of red in the whites are really bothering me.
To those who have no banding: Have you tried this? If you have, and still see no banding, can you post a photo of it?
How to see the color banding: go to Settings, then Apps, then tap on an app and choose "Uninstall" (you can still cancel, don't worry). This screen has a gray gradient that shows severe banding on my One X, especially near the bottom of the screen. And not just banding where you see the transition between one shade and the next, but there are (many) places where the stripes go dark-light-dark.
I took a picture of my One X on that screen (using my Captivate, handheld--not the best result, but it does show the banding). I also attached a screenshot for comparison (it'll only show whatever banding your computer display has).
Since I have two smartphones, a laptop, and an HDTV here, I decided to compare the banding on the four displays. Here are my findings:
Captivate (SAMOLED) - banding is almost undetectable at all viewing angles.
Laptop screen (Dell Studio XPS 13, LCD) - banding is somewhat noticeable, slightly worse depending on viewing angle.
HDTV via HDMI (Sharp LCD, low end) - banding is slight to severe, viewing angle matters a lot.
One X - Noticeable banding from all angles (viewing angle seems to be irrelevant to this screen, which is great).
The One X's screen is still the best I've ever seen on a phone. Let's not lose perspective here! I'm just trying to investigate this particular minor issue.
Edit: In case it's not clear, I compared the banding by viewing the same screenshot on all four displays.
That looks more like how they are displaying that particular screen than anything hardware related. Otherwise we would see those bands everywhere.
AvengerBB said:
That looks more like how they are displaying that particular screen than anything hardware related. Otherwise we would see those bands everywhere.
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This.
AvengerBB said:
That looks more like how they are displaying that particular screen than anything hardware related. Otherwise we would see those bands everywhere.
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Click to collapse
It has to do with that particular screen because
It's a linear gradient--stripes are easier to notice,
the start and end colors are not very different,
the gradient is large.
Points 2 and 3 mean there are fewer intermediate shades, and they're stretched out over a larger area. So, yes, that screen is a challenging image for a display to render, but that's exactly what "color banding" refers to--how well does a display cope with such gradients?
If you think it's not hardware related, just take a screenshot, and view that image file on your computer or another phone. The bands are less noticeable.
And again, I feel like I need to repeat that this is the best screen I've ever used, and I love it. I'm just trying to get a handle on this one issue.
Tinyboss said:
To those who have no banding: Have you tried this? If you have, and still see no banding, can you post a photo of it?
How to see the color banding: go to Settings, then Apps, then tap on an app and choose "Uninstall" (you can still cancel, don't worry). This screen has a gray gradient that shows severe banding on my One X, especially near the bottom of the screen. And not just banding where you see the transition between one shade and the next, but there are (many) places where the stripes go dark-light-dark.
I took a picture of my One X on that screen (using my Captivate, handheld--not the best result, but it does show the banding). I also attached a screenshot for comparison (it'll only show whatever banding your computer display has).
Since I have two smartphones, a laptop, and an HDTV here, I decided to compare the banding on the four displays. Here are my findings:
Captivate (SAMOLED) - banding is almost undetectable at all viewing angles.
Laptop screen (Dell Studio XPS 13, LCD) - banding is somewhat noticeable, slightly worse depending on viewing angle.
HDTV via HDMI (Sharp LCD, low end) - banding is slight to severe, viewing angle matters a lot.
One X - Noticeable banding from all angles (viewing angle seems to be irrelevant to this screen, which is great).
The One X's screen is still the best I've ever seen on a phone. Let's not lose perspective here! I'm just trying to investigate this particular minor issue.
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My understanding of color banding is that it is not so much a function of hardware, but one of software. It depends on the number of shade of a color available. The fewer bits available to display different shades, the worse the banding would be. I'm not very good at explaining it, see wikipedia for more: http://en.wikipedia.org/wiki/Colour_banding
My point is that I don't think that it's a defect of any sort. I think that what we're seeing (I checked mine in the uninstall screen and there's some slight banding) is that gradient from light gray to darker gray is probably a low resolution and low color resolution graphic.
For another example, go to this page:
http://tomobriendc.net/images/Green_Gradient_to_black.png
That's a higher resolution image that gradients from green to black. When viewed at the default browser resolution, I see absolutely no banding. When I zoom in to have the image fill the screen, which puts it stretched, I can see very slight banding in the green end. Further zooming increases the banding, but by then I'm zoomed far past the full size image.
I guess what I'm trying to say is that I think this is a non-issue. The amount of banding visible (if any) has at least as much to do with the image you're trying to view as it has to do with the display. If you don't get color banding in pictures that you take, or in the UI that you use every day, then I wouldn't worry about it in the slightest.
Alright guys, I know what color banding is, and I think I was very clear in my first post that I took a screenshot, and viewed the same screenshot on four different displays. This is not about software, bit depth, or image resolution. It's about whether this display shows more color banding than other displays.
And I do agree that in typical use it's a non-issue.
AvengerBB said:
That looks more like how they are displaying that particular screen than anything hardware related. Otherwise we would see those bands everywhere.
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Every single new phone section had to have at least 4 of these topics. I swear I see them anytime a new phone pops out. My money is on software.
Sent from my HTC One X using Tapatalk 2
robstunner said:
Every single new phone section had to have at least 4 of these topics. I swear I see them anytime a new phone pops out.
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Of course you do. People just got their brand new gadget that they've been looking forward to for months, and will be living with every day for a year or two. Naturally they want to poke around and check out every little detail. At least some of us do anyway, and we're probably over-represented on forums dedicated to phones!
The second photo looks like a screen capture and I see banding.
Wouldn't that mean it's software related?
wrxdrunkie said:
The second photo looks like a screen capture and I see banding.
Wouldn't that mean it's software related?
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It is a screen capture, and it just means the display you're viewing it on also has some banding. I see it on my computer display, too, just not nearly as much as on my One X.
Tinyboss said:
It is a screen capture, and it just means the display you're viewing it on also has some banding. I see it on my computer display, too, just not nearly as much as on my One X.
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I don't know if this helps but my One X, computer, and new iPad all show banding on the screen capture.
wrxdrunkie said:
The second photo looks like a screen capture and I see banding.
Wouldn't that mean it's software related?
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This issue is completely software related. Pointless thread.
Tinyboss said:
Alright guys, I know what color banding is, and I think I was very clear in my first post that I took a screenshot, and viewed the same screenshot on four different displays. This is not about software, bit depth, or image resolution. It's about whether this display shows more color banding than other displays.
And I do agree that in typical use it's a non-issue.
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Nowhere in OP does it say you used the same picture across all displays.
Regardless, this is a software/image dependent "issue." You can see banding on any display, regardless of whether it's a 20 year old CRT or Samsung's brand new $9000 OLED TV. It's a NON-ISSUE.
Banding
I also think this is a software issue. However, the screen shot the OP posted of his One X looks way worse than mine does. Mine barely has any of the banding and is mostly black all the way through other than at the very bottom. It just doesn't progress upwards like is does. However, if you dont always see the banding on a black screen then its in the software. Take a picture of something that is completely black or do a screen shot of something black and view it in the gallery and if you don't see the banding then this is obviously just the particular uninstall app causing this.
Tinyboss said:
It is a screen capture, and it just means the display you're viewing it on also has some banding. I see it on my computer display, too, just not nearly as much as on my One X.
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lol SOOOO wrong. Unless you've got your computer display set to 16-bit color or less, it's got NOTHING to do with the display on your computer.
It's 100% software related. It'll likely get fixed. When we got ICS ports onto the DHD there was banding, far worse than these pics, and it was fixed with an update.
Yes, different display types can ACCENTUATE the issue to various levels, but if the software were rendering everything right, you wouldn't see banding, no matter what display your device has.
It's all about the pixels. If the pic has less pixels then the actual screen resolution you will see that the banding is greater, because ICS is made to stretch to all phones that's why it's more noticeable on larger devices.
Sent from my HTC One X using XDA
belyle said:
Nowhere in OP does it say you used the same picture across all displays.
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Oops, you're correct...I rewrote that first post many times as I tried various things and added/removed information, and I must have left that part out. I edited it for clarity. Thanks.
Regardless, this is a software/image dependent "issue." You can see banding on any display, regardless of whether it's a 20 year old CRT or Samsung's brand new $9000 OLED TV. It's a NON-ISSUE.
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Yes and no. It's image-dependent only in the sense that certain images are more challenging to render correctly without banding. I realize other displays have banding (I know I was clear about that in the FP), but I'm just saying this one seems to have it worse than most.
Look, all I'm trying to do is investigate this one, minor area where my phone's screen seems to have poor performance. If it's only mine, then I'll exchange it. If they're all this way, then fine, it's still the best phone display I've ever seen, and I won't worry about it. My Captivate's display has almost no banding, but I'd be retarded to prefer it over my One's.
All I've been trying to do is determine whether there's something wrong with my screen, or if it's just how they are. And I'm pretty sure it's the latter. And that's fine.
Tinyboss said:
Oops, you're correct...I rewrote that first post many times as I tried various things and added/removed information, and I must have left that part out. I edited it for clarity. Thanks.
Yes and no. It's image-dependent only in the sense that certain images are more challenging to render correctly without banding. I realize other displays have banding (I know I was clear about that in the FP), but I'm just saying this one seems to have it worse than most.
Look, all I'm trying to do is investigate this one, minor area where my phone's screen seems to have poor performance. If it's only mine, then I'll exchange it. If they're all this way, then fine, it's still the best phone display I've ever seen, and I won't worry about it. My Captivate's display has almost no banding, but I'd be retarded to prefer it over my One's.
All I've been trying to do is determine whether there's something wrong with my screen, or if it's just how they are. And I'm pretty sure it's the latter. And that's fine.
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You do realize the reason that your Captivate shows little to no banding is that the black pixels of the display aren't even on, right? So the Captivates blacks are truer than the One X's, but our white is more true than the Captivate's white(blue). No display is perfect, other than the ones on your face, so why bother stressing over it? If you never had any device to compare to, then you wouldn't have a single thing to have a fit about. There are going to be discrepancies and every display is going to have trouble doing at least one thing or another, nothing's perfect.
On top of that it has to do with the grade of the gradient and how quickly it's changing shades of colors. Say you're making a black to white gradient in 20-30 passes, 20-30 changes basically, it's going to be choppier than one with 100 or whatever. If you don't give it adequate time to make the change, then of course it's going to band. It's just like animating. You can't expect a 15 frame animation to display a full action scene in any bit of smoothness. It takes 100+ frames to do 3 seconds of visually smooth animation.
The banding is LITERAL BANDS of color on the screen.
The galaxy nexus does this as well on settings and a dev fixed it by updating the image used within the settings app. I'll see if I can find it.
Edit: http://forum.xda-developers.com/showthread.php?t=1588613
I have a reasonably simple solution to this issue ...
Maybe I'm wrong, or I don't quite understand the issue, but I think I have a simple solution to determine if banding is really an issue in this regard.
I'm preparing four images, which I will upload in a ZIP file along with instructions.
Give me about 10-15 minutes.
Peter
---------- Post added at 02:58 PM ---------- Previous post was at 02:46 PM ----------
Clicking on the link below will download a ZIP file called Banding. Extract the four images and place them anywhere on your device.
http://www.sierrabeyer.com/TempImages/Banding.zip
Now look at each image on your device and decide whether or not you see banding. If you do, then the unit DOES suffer from banding. If not, then it's simply an issue relating to the image used by the developer for the background image of the screen your looking at, in this case, the uninstall screen.
Why can I make this conclusion? Well, all four images are simply 1280x720 pixels, the exact resolution of the ONE X screen. Also, all four images display but ONE colour. Okay, maybe not a colour since one is black (0,0,0), and the other three are shades of grey (32,32,32 and 64,64,64 and 128,128,128).
Here are full size images:
I don't see ANY banding on my HTC ONE X screen. Each image is pure black or grey.
Let me know what you think. Does this test resolve the issue, or am I completely off base?
Peter
Addendum: I have since learned that my reasoning is flawed. If I could remove this post, I would. My apologies to everyone.
I currently is using a 9020t nexus s and I realize it has the washed out problem like many people even after I upgraded to OTA Android 4.0.4. I managed to fix the problem by rooting and voodoo color. However, recently, I was helping my friend to upgrade his Nexus S from 2.3.1 to 4.0.4. Immediately, I noticed that his color is much different and it is not wash out at all even after the update. The grey are darker and the color is darker in general. Do you guys know why there is such a difference in color even though we both update to the same stock rom and kernel? I am just curious. Thank you for the help in advance!
Many different batches of OLED based displays tend to look different. One display may look green, one blue, another accurate but saturated, as has been my experience with others phones. Whether it is different materials or material quality, hardware calibrations or manufacturing machinery we will probably never know.
Slight blandness is probably more noticeable due to the pentile screen on the Nexus S AMOLEDs when different settings are used as opposed to full RGB arrays in "xxOLED Plus" displays.
Thank you so much for the reply, so if I install the same rom/kernel and used the same setting on the voodoo color, both phone would look very similar ?
No, but the same phone will between ROMs. Voodoo would be relative to what is already shown and not an absolute change that would work between phones. However, they would likely look similar. I've not played with it myself (i have the LCD so I can't) though.
You are right, I tried install the same rom and set it with the same Voodoo setting, it is just not quite the same. I also notice that the one I have is brighter than my friend's in the same setting. Upon closer inspection, I realized that mine was a remanufacture model. Could it be possible that mine was actually a SLCD instead of AMOLED? Thanks for the help.
If voodoo colours works, it's amoled.
Received my pixel earlier this week.
Immediately after opening the box I was quite disappointed that the display noticeably shifts towards a blue hue even at the slightest change in angle other than straight on.
I have looked at a bunch of phones on display in stores since, some of which are showing similar symptoms to varying degree.
I understand that AMOLED displays are more susceptible to color shifts at different viewing angle but this seems very extreme.
Anybody else notice the same or bothered by it?
I notice it a little bit, but it doesn't bother me until at extreme angles. I figured it was just a characteristic of AMOLED displays, I see the same shift on my watch.
now android said:
Received my pixel earlier this week.
Immediately after opening the box I was quite disappointed that the display noticeably shifts towards a blue hue even at the slightest change in angle other than straight on.
I have looked at a bunch of phones on display in stores since, some of which are showing similar symptoms to varying degree.
I understand that AMOLED displays are more susceptible to color shifts at different viewing angle but this seems very extreme.
Anybody else notice the same or bothered by it?
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Click to collapse
I have noticed the same on my device, 1/3 of the display at the bottom has a blue tint on light screens while holding it regularly, facing me. If I tilt the phone forward (not facing the eyes), it is better, but a very small angle change and that third of the screen is blue again. I have compared my device to another one and on the other device, it happens a lot less. Instead of just a third of the display it's the whole display that changes slightly color but in positions you wouldn't normally hold your phone. I am considering returning the device...
What have you done yourself? Do you think it is an issue?
Didn't notice until this post. That's probably because I had the same issue on the Nexus 6P. In fact, it ought to be better than this when Google are charging extortionate prices for this!
Sent from my Pixel using XDA-Developers mobile app
grattemedi said:
I have noticed the same on my device, 1/3 of the display at the bottom has a blue tint on light screens while holding it regularly, facing me. If I tilt the phone forward (not facing the eyes), it is better, but a very small angle change and that third of the screen is blue again. I have compared my device to another one and on the other device, it happens a lot less. Instead of just a third of the display it's the whole display that changes slightly color but in positions you wouldn't normally hold your phone. I am considering returning the device...
What have you done yourself? Do you think it is an issue?
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After 4 days of back and forth with play support they have finally agreed to exchange. I looked at a lot of other phones in stores and mine certainly seemed to be worse than most of them. Worth a try. Luck of AMOLED draw I guess.
AMOLED actually has the best viewing angles of ANY display, really. My 4K LG TV's look incredible from any way I look at them.
Pentile AMOLED as seen in today's phone screens is different and the cause of this issue. The color shift occurs because of the inconsistency in sub-pixel layout... RGBGR rather that straight RGB.
now android said:
After 4 days of back and forth with play support they have finally agreed to exchange. I looked at a lot of other phones in stores and mine certainly seemed to be worse than most of them. Worth a try. Luck of AMOLED draw I guess.
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I have received a replacement phone and the new device hasn't got the problem as much , I guess the first device was slightly imperfect and I was noticing the amoled blue tint more coming from a LCD display before on my previous phone.
The viewing angles and hue shift on my lg v10 ips screen is worse..
It's the luck of the draw most manufacturers source hardware from different vendors resulting in slightly different variations. Ie the different ram used in pixels, making some slightly faster than others.