Related
I posted this on the galaxy s forums too, but it seems a little dead there.
As seen by the NoLED app over in the (galaxy S) dev section, and in a few other places on the net, people are finding that when they display a black image on their amoled/samoled screens in a dark room there is still light emitted by the display. it is not truly black
I would like to know why!
One thing i hear is about image compression and signal noise causing the pixels to not display #000000 black and instead a variant of black/grey causing the pixel to become lit.
This problem is not an issue during the day, i can't tell the difference when my screen is displaying black or off. but what it does effect is battery life.
If the screen isn't powering down its pixels then it is not saving anywhere near as much power as it could do
Were we cheated of our true black?
My phone has the AMOLED. I did notice that I can see the backlight through a black screen, usually during boot up. It dosent really bother me. I didnt feel cheated or anything like that. The images look fine.
My phone could use better battery management, my MT3g battery spoiled me.
The odd thing is that there is no backlight on OLED displays - the light is produced by each individual pixel. It ought to produce true black as the pixels should be entirely off, producing no light at all.
The problem with your analysis is that your using a third party app to test this,
what if the code is messing with the display ????
best way to test this is to upload a black image onto your phone and keep it on for a few hours , now check if the display is consuming battery in the battery usage screen, report your findings here ?
Btw normal AMOLEDS differ from S-AMOLED , they don't have true black so they need to turn on the pixels in the display to display blacks.
They should be the same actually, same technology powering the pixels, same lack of a backlight.
I did my testing on the galaxy S with its super amoled, showing a true black bmp image and the screen is still lit.
There shouldn't be any reason to turn on pixels to display black - black is the absence of light, so creating light to display black is rather counterintuitive.
Pure blacks can't be expected from an LCD because the pixels have to block the light from the always-on backlight, but they ought to be achievable (as far as ambient lighting conditions permit) from an OLED.
I do wonder if this is something PenTile-related, but considering that's a technology designed for OLEDs, you'd hope not!
The PenTile display, iirc correctly, has a white subpixel. Maybe thats where the light is coming from?
ooo .... ooo .... ooo .... does that mean by default no more BLACK screen of death??
On a serious note, i'd find it odd that a program can screw up showing a black screen. Wasn't it usualy a case of (well in my day anyway!) poking #000000 to the "pixels" address? (or however many 0's you need for a true 16bit display)
it cant be because its a RGBW display because each led can still be turned off. there still is no backlight.
Also i doubt its RGBW, most likely RGBG
android53 said:
Also i doubt its RGBW, most likely RGBG
Click to expand...
Click to collapse
Yeah, pretty sure it's RGBG. RGBW is a different PenTile layout.
omg you all need a life or a star trek convention to go to lol
AndroHero said:
omg you all need a life or a star trek convention to go to lol
Click to expand...
Click to collapse
you DO know YOUR on a geeky phone forum, right?
(Sadly though, i think you are correct!)
AndroHero said:
omg you all need a life or a star trek convention to go to lol
Click to expand...
Click to collapse
My life is my phone, and the next StarTrek convention isnt until August 13th in Nj, so until then well debate about screen pixels and how black is black on an AMOLED.
Are you guys using true black? In CMKY terms true black is not 100 100 100 100, or RGB terms 0 0 0. That means 100% color of each of the 3/4 colors. In the printing industry if someone chooses black like this from the color pattern it comes out as greyish black in print.
Heres a good artcle that should help you guys make a true black image in photoshop.
http://www.andrewkelsall.com/the-professional-designers-guide-to-using-black/
Hopefully after reading this you will find that the tests people are using and the color black are very volatile. First make a true black image, then test from there.
maxpower097 said:
.... In the printing industry if someone chooses black like this from the color pattern it comes out as greyish black in print.
...
Click to expand...
Click to collapse
A black is easily achieved in assembler (and i'm assuming therefore in C) by simply setting the pixels on the bitmap to 00,00,00 (maybe a few more zero's for more colour range?). This is the "true" black of a device.
i used photoshop to get a high quality uncompressed RGB 0 0 0 bmp image.
the screen is still lit
android53 said:
i used photoshop to get a high quality uncompressed RGB 0 0 0 bmp image.
the screen is still lit
Click to expand...
Click to collapse
I'm wondering if thats the best way to test it. If your viewing your image you created in PS it could be rendering it into colors like 1,0,0 , or 0,0,1, etc.... I would imagine you would need to write a program that actually sets each pixal at 0,0,0.
Problem
The display on my s3 mini is not showing true black but a feint gray shade and it has few curved lines that are COMPLETELY BLACK...I'm wondering if I can make the whole display black as there is nothing wrong with the screen...I was unable to capture this on camera as it was too dark
I'm kind of late to the party but...
I saw that problem on my Samsung Galaxy Express (similar to S3) but I moved away from Samsung for a few generations. Now on my A52 I saw the same "problem".
Turns out it's the eye confort shield that turns the screen dimmer and yellowish, it was messing with the true blacks. I disabled it and couldn't see anything at all it was pitch black.
Not sure if that was the problem with my old Galaxy device... But it makes sense that when you notice it the most, is when that eye protection is active.
Hope this helps anyone
So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?
curiousmileo said:
So i have just rooted my tablet and with a few quirks it works awesome. sometimes the wallpaper will black out and come back but thats not my issue. my issue is that the tablet is so much faster, on the homescreen anyway. the apps open and transfer so quickly i might just keep it like that. anyone else get this weird, uh thing?
Click to expand...
Click to collapse
Well i don't know about a black wallpaper but the tablet is definitely smooth with all the system wallpapers.
Obviously the more pixels it has to render the slower it is. Colours are more intensive than a lack of colour (black). And a live wallpaper is the most cpu-intensive.
yea that makes sense but to have the difference be that substantial is pretty ridiculous. having a live wallpaper and being a little jerky here and there is fine but the difference from stock wallpaper to no wallpaper and high res ones is insane
No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
Any photoshopper can tell you more colour means more resources used, and the bigger the image the more it lags.
No, it's not insane. You appear to forget we're talking about 1920 by 1200 pixels. That's 2304000 pixels. If they're black, nothing has to be rendered, the value is simply 0.
Click to expand...
Click to collapse
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.
I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this? My evo when both on blank wallpaper and a high res one there is no difference in how fast the tablet works and especially how fast apps open. In the tablet though, its very night and day.
curiousmileo said:
I see what you're saying and it makes sense but shouldn't a device of this stature not be so affected from this?
Click to expand...
Click to collapse
I work on a uni computer especially dedicated to heavy rendering and photoshopping. It runs two GTX 680 2GB in sli, an Intel Core i7-990X Extreme Edition overclocked at 4.2ghz and 32GB ram. (And they won't let me game on it... ) If I try to scroll on a 200% zoom 5000x5000px canvas all black, it's gliding on ice. If I do the same on one with more than 8 colours, it lags more and more as more colours are added. This is basic physics.
_that said:
The black background still has to be rendered, otherwise you would see the old content that was there before. And obviously, any solid color uses the same amount of resources.
Click to expand...
Click to collapse
Yes that's true. The colour itself doesn't really matter, just the amount of different colours.
ok well why is my phone not affected by this?
curiousmileo said:
ok well why is my phone not affected by this?
Click to expand...
Click to collapse
Lower screen resolution.
hi,
i just started this thread to get your opinions regarding the display quality of the note3!
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
as far as i can say the screen of the note3 is the best i've ever seen (by far better black-levels as note1 and note2), although i also identified a few flaws as well:
the color RED has very bad viewing angles: when tilting the device a little bit the color gets orange immediately.
try this by enter *#0*# in the dialer, and click on "red" then tilt the device. let us know how "your red" is, thx!
the gamma of the screen is totally screwed: can see down to "1" in gammatest.png:
the disadvantage of this is that you are actually able to see dark grey screens which you should not.
on the left side of the screen border there is a small strip which has also more gamma then the rest of the screen, in menus etc.
this is clearly visible when its dark around. also only visible when at least a little grey is to display, pure black is ok!
this week i will test one or two more note3's, just to have a comparison and to determine if the quality spread is as big as with previous devices. for note1 and note2 the differences between devices were really huge. some screens were near to perfect, most of them had flaws with color unevenness.
what are your impressions?
and: do you care?
regards,
markus
edit 03.10.2013:
just got my second note (this time from amazon.de): the screen is considerably better!! the "more gamma" strip on the left side is non existent on the second device, in gammatest.png the screen is much more uniform! also the red viewing angle is better, it still fades to orange when tilted, but not as much as with my first device!
conclusio: the big differences in screen quality are still existant, it's still luck of the draw if you get a decent one or not...
also the general build quality differs: on the second device the pcb is not exactly in the middle of the casing, the camera hole is not centered in it's protrusion, and the power button extends a little more out of the casing.
again, i may be a "little" freaky about this things, but for > €700 I want to have a decent device!
screen quality is very important for me, because i read a lot with the device, especially in dark environments where the left gamma strip i mentioned was really annoying! i also showed this to a few colleagues of mine, and they agreed.
edit 04.10.2013:
another finding: when CPU load is high, the brightness jumps between a lower (darker) and a higher (brighter) state, even if brightness is set to manual: both devices show this behavior, although not exactly identically: my first device needs more load to start with this (it takes longer), the second one starts the dimming relatively early.
how to test: load a stress test tool (cpu prime benchmark from google play) and let it run, set the brightness to manual maximum and wait.
you will see that after a few seconds the screen will go darker, and will switch between this states. this is independent from the brightness level, it is only better seen at maximum!
i guess this is some power and/or thermal limitation (when more cores are under heavy load), it would be interesting how this kicks in in summer when ambient temperatures are higher...
edit 25.10.2013:
just to let you know: i'm now through 6 devices, all of them had display flaws in terms of uneveness.
a issue most of the devices suffer is the lower dark half of the screen: on 4 of my 6 note3's the lower half of the screen has been signifcantly darker then t´he upper half,
one had a very bad gamme increase on the left 2mm, one had a bad gamma increase on the top 2cm. 4 had a warmer white, two of them were more cold (more blue). could be due to missing or wrong factory calibration...
what is gone is the "blotch issue" i had with sgs2, note1 and note2, and: black is now really black!
but on dark grey levels the uneveness is clearly visible, look at the attached "gammatest.png"
this shows the lowest grey tones. and should be a very visible gradient from top to bottom.
go in a totally dark room, open the pic, zoom in max, and navigate to the top left corner. then pull the
picture down, and look how the numbers fade. for example: "6" should be at the same brightness level on top
and bottom of the screen. it definitely is not...
go out and test for yourself, and post your findings!
Hi there, I should be receiving my N3 next Wednesday. Are the blacks the 'true blacks', as in taking the phone in a pitch black room and blacks cannot be seen?
Thanks
Sent from my GT-N7100 using xda premium
cd993 said:
Hi there, I should be receiving my N3 next Wednesday. Are the blacks the 'true blacks', as in taking the phone in a pitch black room and blacks cannot be seen?
Thanks
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
OLED screens are the only ones I know of that can get true black. With OLED the pixels make there own light so no back light is needed, thus black pixels are not being used at all so a black image has a nice inky black color. You notice it the best when you have a colorful picture with black in it.
Malkozaine said:
OLED screens are the only ones I know of that can get true black. With OLED the pixels make there own light so no back light is needed, thus black pixels are not being used at all so a black image has a nice inky black color. You notice it the best when you have a colorful picture with black in it.
Click to expand...
Click to collapse
sorry, but this is a wrong statement. all amoled screens so far were NOT totally black, even if you displayed a totally black image! the reason is that if the screen is active the display controller is powered (which is the case when displaying a black image, and not if the screen is "off") which can be seen as a faint and VERY dark glow. you can only see this when the room in which you are is totally dark, and your eyes had time to accommodate. to make it worse: on all AMOLED devices i've seen so far there were patterns (like hair lines and blotches) in this grey glow, due to the manufacturing technique used (lithography).
see for reference:
http://forum.xda-developers.com/showthread.php?t=1365032
http://forum.xda-developers.com/showthread.php?t=1986338
http://forum.xda-developers.com/showthread.php?t=1949306
http://forum.xda-developers.com/showthread.php?p=32803480#post32803480
and so on...
so the question of cd993 is reasonable!
answer: note3 is the first device where i cannot see this dark glow, even in a total dark room! so a big improvement on this side. not sure what they changed, but the glow is definitely gone!
Red turns orange here to, but it doesent bother me as the screen is nice overall. Much better than my note 2
Red turns orange when screen is tilted, yes. Black are true blacks in Note 3. If you go to a pitch black room, and display a completely black screen in Note3, the phone will blend in and disappear.
Thanks guys, cannot wait to receive my device!!
Sent from my GT-N7100 using xda premium
TML1504 said:
hi,
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
regards,
markus
Click to expand...
Click to collapse
Please make a quick guide of what to test and what to look for on a new note 3, in order to decide whether or not to return or warranty claim. Basically: On arrival, what would you check for, and what result would make you return it and get a replacement? How much of any issue would be ok for you to keep it..?
N3 screen : brighter and look better than Note 2 and S4 but still can not compare to the best IPS screen about white color
TML1504 said:
i have to admit upfront that i'm a hypocrite when it comes to amoled screens, so far i had to switch all of my amoled devices a least 5 times until i got a unit which satisfied me. done this with the first note, and also with the second.
Click to expand...
Click to collapse
You'll do that with any Android phone whether LCD or AMOLED because their screens aren't individually calibrated (iPhone's are). So there's some degree of acceptable production tolerances that means all built won't be identical. So whatevery you went through before you'll go through again with the N3.
Oled = true black
LCD = true white
Sent from my note 2 ya bish!
Today I got my N3 and all I can say its SUPERB!!! Abs everything
My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).
mi7chy said:
My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).
Click to expand...
Click to collapse
My ps vita has those blotches really bad!
You only see them in a pitch black room but I think they are the same thing.
Sent from my SM-N9005 using xda app-developers app
Pointing out to OP that the leaking light on the Note 2 (and s3) is extremely reduced in the S4 and Note 3 - you should not compare the Note 3 with the Note 2 in that aspect.
Black wallpaper on n3 = better battery life then?
Other than seeing imperfections in impractical situations, is there anything about the display that is actually bad in normal use? I mean do you see whites on this phone and think, hmm that's more of an off-white or is it like so small in difference that you need a color spectrometer to prove that it's not "true" white?
mi7chy said:
My only concern with AMOLED is the blotches that show on a grey screen in a dark environment like the first time I noticed it using Facebook. I had to replace my first Note II and even the second has some blotches but not quite as big and bad.
I've attached a grey background for your convenience to see if your AMOLED has blotches. You'll need to be in a dark environment like reading at night without the lights on (simulate by going into the bathroom and turning off the light).
Click to expand...
Click to collapse
I know what you mean. I had that on my note 2. Not so on my note 3. When I open black screen in a pitch black room, the phone becomes completely invisible as it blends in perfectly with the dark. And yes, I'm not exaggerating. It's the deepest black I've ever seen on any display, it's like the phone is actually turned off.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Hi Guys!
Need info about PURPLE SEMARING. Does the Note 3 has this issue? Because all the S4 has this semaring issue although it has a pitch black. Please confirm this purple smearing. If it's totally pitch black and without smearing it will be the perfect screen out there
Thanks guys! :highfive:
iede said:
Hi Guys!
Need info about PURPLE SEMARING. Does the Note 3 has this issue? Because all the S4 has this semaring issue although it has a pitch black. Please confirm this purple smearing. If it's totally pitch black and without smearing it will be the perfect screen out there
Thanks guys! :highfive:
Click to expand...
Click to collapse
Completely pitch black...
Sent from my SM-N9005 using xda app-developers app
https://youtu.be/nP0I6Mb880E
Sent from my Nexus 6P using XDA-Developers Legacy app
Yup, this was pretty obviously stated and samsung did tell people. You can turn the resolution up if you require also.
1920/1080 is 1080p....so 1080P+
:laugh:
its a little more than 1080p. Also I speak from experience that you can not tell a difference unless you are looking for it. It is the same screen resolution on the S7's with nougat.
Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk
lordandroid said:
Yep it is. Lets not blow this out of proportion people if you want QHD+ its in the settings under display.
Sent from my SAMSUNG-SM-G935A using Tapatalk
Click to expand...
Click to collapse
that also. lol. its not that bad it being 1080p+ though. It looks almost the same and to most you wont be able to tell.
Agreed ?
Sent from my SAMSUNG-SM-G935A using Tapatalk
I couldnt tell on my oneplus 3T, the screen was great.
QHD on a phone is overkill. It's a nice-to-have if you're trying to watch a movie, but other than that it's purely excessive. If someone showed you a 1080p and a QHD display on the S8 or even the s8 plus, I can all but guarantee you wouldn't be able to tell the difference. I sure can't with my S7E.
The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
EDIT: I just think about this from a delevoper perspecive. The developer thinks: Let's make a black 2px line there -> it's a 2px line.
Because you cant fit a multiple of 1080 in 1440 the interpolation would make a 2,66px line. As you know you cant color 0.66 parts of a pixel black. So most likely the whole pixel will be black which results in a 3px black line where there should be a 2,66px line. As this happens with every pixel of the display the image won't just get inaccurate but also the GPU has to do some very unnecessary scaling work.
Termynat0r said:
The problem is not that 1080p looks bad. The problem is that this display has a set number of width and height pixels which is defined as 2960 x 1440. So if you want to display a picture which is 2220 x 1080 in a display which size isn't a multiple of the picture you have to interpolate. You somehow need to have just 1080 pixels in a row where there are supposed to be 1440. Why don't they go with 720p instead? Well I guess it would also look shi**y :/
Just my thoughts, I have never seen a S7 or S8 display.
Click to expand...
Click to collapse
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.
marinebio94 said:
It's the same as changing the resolution of a computer or monitor display. The interpolation isn't the issue, every manufacture has that down pat. 720p would make a noticeable difference, even in basic browsing and function. 1080p is enough that on a screen the size of the S8 or S8+ you wouldn't be able to see the individual (or interpolated) pixels.
Click to expand...
Click to collapse
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.
Termynat0r said:
I didn't say that this is not the same. But when I buy a 1080p monitor, I use it in 1080p because thats what it is intended for. You won't see pixels on a 500+ ppi device. But the image will be totally unaccurate and that's not what I generally like to look at. I just tried this in photoshop and the effect is even worse than I thought and demonstrated by that example picture in my last post. Here's what it'll really look like. You want to look at this? Of course it will be very small pixels but do you really don't mind?! I know I do.
Click to expand...
Click to collapse
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.
marinebio94 said:
That's not at all what it will really look like. Doing something in photoshop is not even close to how it will look in real life. Please look at the phone before you assume what it will look like. I just switched my phone from 1080p to QHD and back again, and I literally cannot tell the difference, even with my face pressed inches away from the phone.
Click to expand...
Click to collapse
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not
Termynat0r said:
You can't negotiate with the pixel science
Most likely the pixels are just to small to see a difference but I will take a look at the phone when I get it to judge wether switching to 1440p or not
Click to expand...
Click to collapse
But don't forget these OLED panels use a diamond pentile subpixel arragement, so the interpolation isn't quite the same as a traditional RGB LCD monitor.
It's REALLY REALLY difficult to tell the difference between QHD and 1080p on the S7. At more than about a foot, it's nearly impossible to tell. I know what you're saying, I hate running monitors at non-native resolutions.
If it bugs you that much, just change it.
If lower resolution gets me another 1hr SOT per day, I'll drop all the way to the bottom. Can't tell the diff.
I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.
teegunn said:
I just changed to 1080 p on my S7E (was at the highest rez setting). Really can't see a difference. Icons and keyboard are a bit larger. Texts are a bit bigger. But as far as sharpness, look of the display, not an issue. Just going to test and see if this makes a difference much on SOT or not. I can always change back to the highest rez setting if I want - takes about 30 seconds to do.
Click to expand...
Click to collapse
This setting should not affect the size of the screen elements (icons, text) at all.
se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
The initial change of setting could change aspect ratios, but a quick restart should fix it.
se1000 said:
This setting should not affect the size of the screen elements (icons, text) at all.
Click to expand...
Click to collapse
I use Nova launcher, Swype and Handcent texting app. It changed the size of icons, the size of font, the size of the keyboard and the size of the texts (the bubbles and text font). It did increase the size on all of those. Also increased the size of the quick settings, etc. It's not a big deal, but it did increase the size of things a bit. Has caused no problems so far otherwise.
Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
Is this something wrong with the phone? Or is that normal?
60
saidgta said:
Is this something wrong with the phone? Or is that normal?
Click to expand...
Click to collapse
normal for amoled screen
saidgta said:
Is this something wrong with the phone? Or is that normal?
Click to expand...
Click to collapse
You have a defective display get it replaced ,& no this isn't normal with oled screens
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
blackhawk said:
You can see the lines with your eyes or just with the cam?
Normal for a cam image... try decreasing shutter speed, a lot.
Click to expand...
Click to collapse
I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
saidgta said:
I can see with eyes but very rare, just when the screen is on 120 Hz and lowest brightness. On 60Hz everything's ok!
Click to expand...
Click to collapse
Is that in a completely dark room?
If you're not using a incandescent light source for room lighting that may cause it.
Otherwise regardless of screen brightness or display frequency it should be not be showing anything except what's being displayed.
At that price it better be spot on.
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
screen lines
Hi. I just got my Note 20 Ultra and I have the same problem. I see streaks in my photos. If I switch between 60 and 120Hz, sometimes the lines disappear, but not always.
saidgta said:
Yes, that's in a completely dark room.
The horizontal lines is static, not moving. And you can see just in Gray Backgrounds with lowest brightness and 120hz.
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Not good. Was thinking maybe background LED lighting might be "strobing" it.
Probably a firmware issue but could hardware is my guess.
Maybe software... try clearing the system cache on boot menu, a hard reboot and clearing graphic driver data even if it reads zero. If you have PD MDM use that to clear instead of in Settings.
Mine does the same. I think they all do it some people just don't notice it.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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Yes, I know someone that replaced the phone, but new phone has the issue too.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
blackhawk said:
Do you normally use that low a level at night?
I have excellent center vision; my 10+ goes dimmer than I will ever use. No flicker or color anomalies though.
It may be the physical hardware limits of the device or they may eventually patch a firmware flaw.
They also may have inadvertently set the lower limit of the brightness too low...
If it doesn't effect night usage I might ignore it.
Samsung can be notoriously slow at fixing firmware/software glitches in their products.
Amazingly even after almost 2 years they are still patching both firmware and software on the original Buds. They now perform much better then a year ago. Crazy.
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Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
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coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
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That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
blackhawk said:
That's seems annoying. Guess using a lower frequency at night be the easiest solution. Sammy throws out a lot of betaware that needs more work...
On the 10+ Pie the display settings are goofy for screen mode. If you set it to "vivid" it's way oversaturated. Natural is the best setting but you have little ability to dail it in much more than that.
I'm curious about these controls on the 20U and Q.
Any improvement?
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Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
coilbio said:
Mine does the same. I think they all do it some people just don't notice it.
Click to expand...
Click to collapse
coilbio said:
Frankly it's always visible since I know what to look for. when I'm not looking for the it, it's when it's really annoying to see.
I have a note 9 and a 10+ which I still daily drive both on their own sims. The difference in screens is very noticeable. The 120 hz mode is the problem. Put the phone in full resolution and it's way better.
The screen on the n20u is less vibrant than my other notes, but it's more color accurate so I like that.
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Click to collapse
coilbio said:
Honestly don't notice a difference switching between the two in n20u, on note 10+ yes big difference.
So I tried the green slider mod setting where you dial it all the way down under advanced display setting.
Its not much of a difference, it does reduce it a little. The screen becomes purple dominant obviously but the green fringes still show.
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On the 10+ the color sliders are weak too.
A 3rd party overlay app works but is a pain.
Overlay apps won't work with Q though I believe.
Rather sloppy of Goggle and Samsung... this is an ongoing issue with Androids; no color calibration
Fortunately the 10+'s aren't too bad but it the color blind coders need to get up to speed...
Androids need color calibration.
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
doggydog2 said:
OLEDS are horrible sceens, but similarly to screen-to-body ratio we have brightness race now, a useless but review-happy attribute which does help your eyes only in very rare situations. Otherwise it makes your eyes tired with pulsing. For use in dark these screens are bad. You will also got ugly backbleeding as a bonus. Horror movies are unwatchable.
I have this with each phone nowadays, and there's no escape from it. I can see the lines on Note20U too, of course. It even blinks when you're tired. The backbleeding is rather uniform tho and not so intensive.
Funny as I use mobile 90% in dark, i prefer dark mode, and i like dark movies Killer trio.
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It's not the OLEDs that are the issue as the display on my 10+ is the best display I ever used.
It's the firmware/drivers and perhaps the >60 hz hardware. It's very disconcerting that it's not sorted out yet.
Well that's Samsung. It may be fixed. Samsung just pushed out yet another Buds+ firmware update today. Wow. They keep trying, I'll give them that... the best the Buds+ ever sounded.
So there's hope. The bad news is it will most likely need to be a firmware update if it is fixable.
Flashing the Buds is a lot easier (and less risky) than patching the bloody phone firmware.
Based on issues like this and the abomination that Q and above are, I may simply buy another backup 10+ 512gb phone running on Pie and call it good for the next 3 years.
Both Samsung and Goggle/Android have been practicing drop the ball like drooling kindergarten ftards lately
saidgta said:
Hi,
My Note 20 ultra has some Display problems.
When my phone is on a lower brightness and Adaptive(120Hz) refresh rate setting on a grey background, I can see all sorts of funky horizontal lines across it.
(except gallery - i think the refresh rate reduce to 60hz in gallery automatically so in gallery you can't see the problem).
I see them big time on settings screens or Apps where there is a gradient of gray.
see the attached Picture. Two pics with 120Hz(Adaptive) Display Refresh Rate and others with 60hz!
Note: the problem seems to be more than real in these pictures because of camera, with eyes you can't see such this bad!
Any one here with this problem?
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I have same issue..! Have you sorted out this issue!?