Hello all. I have a weird problem about some pixels on A501 screen: when the screen is on and the background is black, some of them will show "bright"... but not white, i'd say some sort of pale gold or very light brown, but again not white. With other backgrounds (red, blue, green, white) those pixels acts as normal, not being distinguishable from the others.
Is there something I could do? The issue is a lot more noticeable with 100% screen brightness.
Update: I sent the tab to service repair, and they sent me a new one. Guess what? Same problem again, right where it was on the old tablet!!
Definetely they are not stuck or dead pixel (I can say that because of the color of the pixel)
I was thinking, since I use a Tucano Youngster Case (http://www.tucano.com/shop/youngster-for-10-tablet-pc-1.html) which has a magnetic clip on the back, could this be the issue?? I'm going to try to take a photo at this pixel and attach it here.
cm0901 said:
Update: I sent the tab to service repair, and they sent me a new one. Guess what? Same problem again, right where it was on the old tablet!!
Definetely they are not stuck or dead pixel (I can say that because of the color of the pixel)
I was thinking, since I use a Tucano Youngster Case (http://www.tucano.com/shop/youngster-for-10-tablet-pc-1.html) which has a magnetic clip on the back, could this be the issue?? I'm going to try to take a photo at this pixel and attach it here.
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Click to collapse
that would be a better way to ask.. give picture so that we can see your problem..
hmm.. i would deny the fact that magnet will affect your screen.. thats why i hate those casing with magnetic clip on it.
sawamura said:
that would be a better way to ask.. give picture so that we can see your problem..
hmm.. i would deny the fact that magnet will affect your screen.. thats why i hate those casing with magnetic clip on it.
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Click to collapse
Unfortunately pics won't show my pixels, they're just too small. However I tried passing another magnet (more powerful than the one on the case) both on the screen, with a direct contact, and on the back, where the case's magnet is located, but no other pixels got damaged. So I don't think the magnet is responsible... Does the iPad folder case has a magnet in direct contact with the screen too? If that's the case I believe that magnets don't affect screens at all (imagine iPad's owners complaints?).
What do you think?
Inviato dal mio A501 usando Tapatalk
Well, when I set my background as black, on this one and two other Android tablet I had, it sometimes show a short brown/gold line on the top left of the screen. Most of the time its not there thoough. So it just seems to be a software thing. Although I do not have any problem where pixels appears randomly throughout.
eksasol said:
Well, when I set my background as black, on this one and two other Android tablet I had, it sometimes show a short brown/gold line on the top left of the screen. Most of the time its not there thoough. So it just seems to be a software thing. Although I do not have any problem where pixels appears randomly throughout.
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Can you get a pic, so I can try to say if we're talking about the same issue? However, my pixels are always there, even in the "Acer" and "Android" boot screen... so I doubt it's a software issue.
Just a heads up... Yesterday I got my 3rd Iconia, and guess what, same problem again. I think I will just live with it... but I'm extremely annoyed.
Does anyone knows what kind of problem can this be, with gold-coloured pixel only with black background?
You should load up the Screen Test app that sets all pixels to red, blue, green, black, white, etc. in sequence as well as displaying several resolution and gradient screens and see how those pixels react.
I bought one A500 that had bad Wi-Fi but all pixels were perfect. Exchanged it last weekend for a second one with working Wi-Fi and all the pixels are also perfect. I don't see any gold pixels.
I'll disagree with your statement "Definetely they are not stuck" in your second post because if they are always gold in all screens they are indeed stuck. Not stuck on white or black but still stuck on that one color.
Does this happen on all home screens or just one? I hope you can post a picture of some sort because I don't know where to look to see if mine has the same issue but, running Screen Test, I don't see any incorrect pixels in Screen Test.
qhorque said:
You should load up the Screen Test app that sets all pixels to red, blue, green, black, white, etc. in sequence as well as displaying several resolution and gradient screens and see how those pixels react.
I bought one A500 that had bad Wi-Fi but all pixels were perfect. Exchanged it last weekend for a second one with working Wi-Fi and all the pixels are also perfect. I don't see any gold pixels.
I'll disagree with your statement "Definetely they are not stuck" in your second post because if they are always gold in all screens they are indeed stuck. Not stuck on white or black but still stuck on that one color.
Does this happen on all home screens or just one? I hope you can post a picture of some sort because I don't know where to look to see if mine has the same issue but, running Screen Test, I don't see any incorrect pixels in Screen Test.
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Click to collapse
I ran a pixel test app and with ree, green and blue pixels everything is perfectly fine. Only with black background I can see them. I tried to take photos but pixels are too small to be noticeable :-(
Inviato dal mio A501 usando Tapatalk
cm0901 said:
Only with black background I can see them. I tried to take photos but pixels are too small to be noticeable
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Click to collapse
Can you tell us exactly where to look? In Landscape mode, how far from the left/right top/bottom edges should I look and how many pixels am I looking for? How many should I see that are not completely black?
qhorque said:
Can you tell us exactly where to look? In Landscape mode, how far from the left/right top/bottom edges should I look and how many pixels am I looking for? How many should I see that are not completely black?
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Click to collapse
Among three tabs they were in different numbers and position... however they were between 3 and 6, and in the middle (vertically speaking); horizontally, instead, i found them twice on the right half on the screen (volume keys up) but this last iconia I have right now they are on the left. I also managed to get some photo, I'll post them later.
EDIT: Unfortunately I forgot my camera's MMC at home... will get back there in 10 hours and post the photos. However I ran Pixel Fixer during the night (an app which alternates red/blue/green/white screens very fast) but the pixels were still there this morning.
Inviato dal mio A501 usando Tapatalk
I ran through all the colors in Screen Test and found only ONE bad pixel across the entire screen and it's only when the pixel is supposed to be blue; it's black instead. That same pixel is correct on all the other colors though.
Otherwise, at full brightness and on any color, they are all on correctly and off when the screen is set to black. I don't see any other colors as you describe.
If your screen is doing something similar across three different tablets, maybe it's something you are doing but I'm not sure what it could be.
qhorque said:
I ran through all the colors in Screen Test and found only ONE bad pixel across the entire screen and it's only when the pixel is supposed to be blue; it's black instead. That same pixel is correct on all the other colors though.
Otherwise, at full brightness and on any color, they are all on correctly and off when the screen is set to black. I don't see any other colors as you describe.
If your screen is doing something similar across three different tablets, maybe it's something you are doing but I'm not sure what it could be.
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Click to collapse
Please note that this issue is present in the Acer and Android boot screen... what could I do wrong in that phase?
Ok, here's the photo. The three pixels are inside the white circle.
I just rebooted after setting display brightness to full and did not see what you see. I guess I'm no help. Sorry.
Related
Hello everyone,
I just booted up my Hero, and I noticed more than 6 dead pixels.
I used these unstuck applications but didn't seem to work...
They only appear when in black, so they ain't that big of an issue but do you think I should send it for repair?
Thanks
Definitely.
I'd send back a 1920x1200 PC screen for less than 6 faulty pixels... it's completely unacceptable for a 320x480 screen.
Dead pixels won't show on a black screen. I'm assuming you mean possibly hot pixels on the boot screen. They're probably specks of dust.
http://forum.xda-developers.com/showthread.php?t=554288
I agree with Switchbitch dead pixels will always been seen the color will be always wrong and not only when its black. still its intresting how dust get up there.
Switchbitch said:
Dead pixels won't show on a black screen. I'm assuming you mean possibly hot pixels on the boot screen. They're probably specks of dust.
http://forum.xda-developers.com/showthread.php?t=554288
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Well no, they appear after boot screen, too. For example in Market/Settings or wherever black color is.
ZenorGR said:
Well no, they appear after boot screen, too. For example in Market/Settings or wherever black color is.
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Click to collapse
What color does the dead pixel show is it red??
Yeah I think so. I just tried to shake the phone and it seems that they are gone or whatever. But now I can clearly see a dust piece which is white. So I suppose the gap does exist at least in my phone.
Not annoying but oh well... if it gets filled with them I would need to send it for repair.
Does warranty fill these kind of issues?
I might have the same problem but it is no dust or hot pixel but the space between pixels.
It seems to me the film layer wasn't cut properly in the factory with the result that backlight shines between the dark pixels.
It isn't dust because there is no sidelight to light up dust and the spots are shining very bright white so the light definately comes from the back.
Furthermore my screen fits fine into the casing.
Maybe it is because I always have the brightness at full I notice it more than others. When I run Spark in classic mode or Draw! you get a complely black screen to test it... a pixel-test program is an option also.
I noticed it in the beginning when 3 positive-dead pixels where so very small they could not be hot pixels. Now, one month after the begin of use it has grown to about 9 of them but they are so very very small that I am not going to make a hassle about it.
I was browsing through the gallery just now and noticed a dead pixel. Or what I thought was a dead pixel.
When swiping through the gallery, there is a picture of a pink flower, followed by a black and white photo of a man. The b&w photo is portrait. I had the phone in landscape mode.
In the black space in the top left, I noticed a red dead pixel. I swore and carried on swiping.
Next was a landscape picture of a dog, but I noticed as I continued swiping that the dead pixel was still there.
Next is a skater in portrait mode...and the dead pixel is gone!
I swipe back, it comes back.
Swipe forward, it's gone again.
Anyone else's do this? I had to do it in a dark room to notice.
Sent from my Desire HD using XDA App
This sounds like the dead pixel may be in the photo rather than the phone.
If you only get a dead pixel on specific photos, but cannot get the same result on any other screen on the phone, then it is probably the photo.
Take a photo so that the image is black (photo dark piece of cloth) if resulting picture has dead pixel, it is phone screen and you have a dead pixel, but one pixel should not cause too much problem.
With LCD screens, normally there is a percentage of pixels that can be faulty before it is classed as defective under warranty or sale of goods act.
malex1 said:
This sounds like the dead pixel may be in the photo rather than the phone.
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Click to collapse
That's what I originally thought, but the dead pixel remains stationary when swiping between the photos! It's so strange!
dazultra2000 said:
That's what I originally thought, but the dead pixel remains stationary when swiping between the photos! It's so strange!
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Click to collapse
if it was porn pictures, then the red dot is god's eye watching you
If you see a red pixel illuminated against what should be black, you could have a stuck subpixel. A "dead" pixel implies the inverse; a black pixel where there should be colour.
On the photo of the man in black&white, with the phone rotated landscape, there are black spaces either side of the photo as it was taken in portrait.
On my phone, these black spaces are pure black.
When you display a picture with colour that occupies the space of the pixel in question, you wont notice it. Each pixel has three smaller subpixels that make up the colour; a red, green, and blue one. When the stuck pixel's nextdoor neighbours switch on, you won't notice the problem. The problem is that this pixel won't turn off.
If you want to return the phone, I'd make your mind up and do so as soon as possible while you still can - but perhaps using the proximity sensor thing as the reason, as most manufacturers/shops won't accept dead/stuck pixels as a return reason unless theres several of them, or if they're right in the middle of the screen.
Best of luck mate.
I'm not sure if you're understanding me. It's actually ok, just not when looking at that particular photo! I'm just trying to understand why. It's fine everywhere else, just not on that photo. But its not the photo as it doesn't move with the photo when it swipe.
Sent from my Desire HD using XDA App
Oh right!
That's strange then! I can't reproduce the behavior on mine, I'm afraid.
Did you change the UI skin from the default?
A red pixel is just stuck, I had one on my laptop and I used a program the flashed colours over it and after an hour it was gone, a black pixel will be there for life ..
It happens will lcd sometimes
Doubt anyone has made a program on the android market for this though
dazultra2000 said:
I'm not sure if you're understanding me. It's actually ok, just not when looking at that particular photo! I'm just trying to understand why. It's fine everywhere else, just not on that photo. But its not the photo as it doesn't move with the photo when it swipe.
Sent from my Desire HD using XDA App
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Click to collapse
Daft question but have you tried deleting the photo and seeing if it moves to the next or is gone for good?
No, I might though. Be interesting to see what happens.
Sent from my Desire HD using XDA App
I had a look just now but can't see it on mine...I'll look again tonight when it is darker and let you know.
Sent from my Desire HD using XDA App
You can try this: http://www.appbrain.com/app/com.xcitoproductions.checkmypixels
http://www.youtube.com/watch?v=VcLAiDDV_IU
I made a very poor video of it. Need to set it to 480p and watch fullscreen to see the stuck pixel.
I can't see that pixel you are talking about...had another look tonight
I saw it. It's kind of a glowing red light more than a stuck pixel. Very strange indeed.
dazultra2000 said:
http://www.youtube.com/watch?v=VcLAiDDV_IU
I made a very poor video of it. Need to set it to 480p and watch fullscreen to see the stuck pixel.
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Yep - very strange. I think you have full rights to write HTC about this and ask for explanations.
Hey,I know apart from dead pixels,there are some other 'bad pixels' like colourful pixel(sorry,I translate it directly from Chinese,that's what we call them.There must be an English name.) and white pixel.Different kinds of bad pixels behave various from different colours of background.That's why you can see them in some situations while some you can't.We often test 'bad pixels' of screens of laptops with several colours of background when shopping.
Maybe you could give this a try as well: http://www.appbrain.com/app/com.jscreenfix.android
Good luck mate!
Edit: Instructions say that you have to leave it running for about 10 minutes.
I recently purchased galaxy note and had dead pixel issue with it. So I got it replaced, and now the second one I ve got has this strange light greyish blemish visible on grey backgrounds. Also when I see the screen with grey color on it the screen doesn`t look uniform where as in all rest of the colors it looks uniform. Please have a look at the attached pictures and let me know if its normal ?
Also please set your brightness to 15% or below to check your devices.
Heres the video for better view:
Video Link: http://www.youtube.com/watch?v=IzFA2f05Rr8&feature=youtu.be
Honestly, I don't see any blemishes at all. However, I do see a lot of air bubbles trapped under a screen protector. Are you using one?
Raghav1980 said:
Honestly, I don't see any blemishes at all. However, I do see a lot of air bubbles trapped under a screen protector. Are you using one?
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Yes I am using a screen protector with lots of bubbles. But do check out the video, in images its not much visible !
No issues on my Note
No issues with the screen, no grey spots no bubbles, no screen protector.
My screen is great.
Also please set your brightness to 15% or below to check.
My god that CPU is loud!
Btw, i can't see anything.
ankydu said:
I recently purchased galaxy note and had dead pixel issue with it. So I got it replaced, and now the second one I ve got has this strange light greyish blemish visible on grey backgrounds. Also when I see the screen with grey color on it the screen doesn`t look uniform where as in all rest of the colors it looks uniform.
Click to expand...
Click to collapse
Same thing happened to me. The 1st note I got had dead pixels and dust moving behind the screen. The second one had those dark lines on grey and white color... the first one had those too but not as much as the second one. I sent them both back for a refund. Don't know if I should try my luck on a third one..
Here are some photos:
(The one to the left is the first one with dead pixels)
http://imageshack.us/g/685/bild4ht.jpg/
SrAdama said:
Same thing happened to me. The 1st note I got had dead pixels and dust moving behind the screen. The second one had those dark lines on grey and white color... the first one had those too but not as much as the second one. I sent them both back for a refund. Don't know if I should try my luck on a third one..
Here are some photos:
(The one to the left is the first one with dead pixels)
http://imageshack.us/g/685/bild4ht.jpg/
Click to expand...
Click to collapse
Mine looks somewhat like the second one but with very less of artifacts !
if any of you have a digital camera and white galaxy note, can you please post a picture of plain white display (via LCD Test *#0*#) in low brightness. Please let me know. thank you all in advance.
Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.
Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk
Must have been specs of dust. I checked just now and they're not there.
PAGOT said:
Is that dirt or a dead pixels on that image?
Sent from my GT-N7000 using Tapatalk
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I bet you almost gave him a heart attack
LordManhattan said:
I bet you almost gave him a heart attack
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hahahahahaha
Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
netonyx said:
Here you go. Hopefully the file attaches (I think it may be too large).
Oh, it looks like it may have downsized it. Let me know if you need more detail.
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Click to collapse
don't know if my eyes are playing me, I do see a couple of horizontal lines, I don't know if that is due to the screen protector or the angle the picture was taken from, don't wanna scare you, but I am hoping that the next wave of batches have a better production like the S2.
The witch hunt continues
Sent from my GT-N7000 using xda premium
Always Positive...
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!
SAlmighty said:
Thanks a lot! Do you have a screen protector applied on top of that? I see something that looks like mura lines. I'm sure those are not mura lines but the way the camera was focused on the screen. Also that display brightness was set to the lowest, right?
It would be great to see more users contribute to this thread. I'm making a tally to convince myself to buy a White note. My black note was serviced several times due to screen issues, and am getting a refund. Not letting go of the note just yet.
Click to expand...
Click to collapse
No screen protector. And yes, I set the brightness all the way down before I took that photo.
I think if you're seeing a moire pattern it may be because of the difference in resolution between the reduced-resolution image and your monitor. I'm looking at the original photo in Photoshop and when I zoom in and out I see changing moire patterns at certain zoom levels, but don't notice anything when I look at it zoomed in at 100%, or even at 50%. And of course I don't see any moire pattern when looking at the phone itself.
Oh, and the brighter area in the lower left of the photo is my hand's reflection.
I do, however, see faint horizontal (vertical in this photo) banding on the screen when looking at the phone. I couldn't say whether it's any better or worse than the black/carbon blue version, as I've never seen one. I'd describe the banding as very faint, but visible if you're looking hard for it. And when looking at a blank white screen like this, I also have a general sense that not every part of the screen is quite the same level of brightness. Again, not major, but noticeable when looking at a solid white screen.
You'd need to reduce the brightness further with Screen Adjuster from the market. The basic brightness setting at 0% is probably only at 50% of what the screen is actually at. So you can go much dimmer to reveal the manufacturing process.
Learn to live with it. The marks don't affect the functionality of the screen. While I have noticeable marks on the bottom right half of the corner and vertical streaks, I don't let it deter me from enjoying this elegant piece of tech!
SAlmighty said:
However, you can definitely appreciate the fact that the White Note has a better display than the Black. Horizontal lines or not, they definitely display less on the White compared to the Black. Hope to see more pictures soon!
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Click to collapse
That is bollocks My new white 32 GB Note has a much worse display than my former two blue 16 GB. Think I gonna send it back so that the white has a better display is pure dreams
I just ordered my white note today. Looking forward to it arriving on my doorstep tomorrow!
guys make sure to turnoff AUTO ADJUST SCREEN POWER in display options.
i have black unit and i done lcd test on low brightness.no lines or anything.
if you have to download app to lower brightness even more to see defect.then something is wrong with u.because ur looking for reasons to find some kind of defect.everything is not perfect.if u cant see it on normal use,then its good piece.
Hey guys, after an holiday in Madeira(portugal) looking my phone with attection i've noticed that in the botton on the screen there are a dot more bright then the rest of the screen, is visible only with the light color. with black screen i can't see him. I can fix it? in white screens is orrible!
Edoardo001 said:
Hey guys, after an holiday in Madeira(portugal) looking my phone with attection i've noticed that in the botton on the screen there are a dot more bright then the rest of the screen, is visible only with the light color. with black screen i can't see him. I can fix it? in white screens is orrible!
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Click to collapse
Running on the assumption that its a dead pixel the only way to repair it would be replace the lcd but its seems quite drastic for the sake of one pixel.
Sent from my LG-D802 using Tapatalk
heavy_metal_man said:
Running on the assumption that its a dead pixel the only way to repair it would be replace the lcd but its seems quite drastic for the sake of one pixel.
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Click to collapse
The pixel is visible (bright, white maybe?) so it's not dead, just stuck.
And no, stuck pixels are not fixed under warranty unless they cross over a certain threshold (a certain number of them over the whole screen, or another, smaller number if they're all close to one another).
But it's not the phone's fault, almost all screens develop these over time. My old screen had 2 of them in under a year.
robogo1982 said:
The pixel is visible (bright, white maybe?) so it's not dead, just stuck.
And no, stuck pixels are not fixed under warranty unless they cross over a certain threshold (a certain number of them over the whole screen, or another, smaller number if they're all close to one another).
But it's not the phone's fault, almost all screens develop these over time. My old screen had 2 of them in under a year.
Click to expand...
Click to collapse
True,true. Sometimes i find woth lcd laptop screens you can tap them away but its a temp fix at best :-/
Sent from my LG-D802 using Tapatalk
I have the same thing.It popped out a few days ago.
There are some apps that can in som cases fix this.
Thay make that pixel flash with a high framerate with different colours... Try one might help if u are really lucky
Try this one
https://play.google.com/store/apps/details?id=com.blueburn.StuckPixelTool