Recently, I noticed the is a strange circle in the middle of the screen. When the screen backlight is off, it appears as a black circle. When the screen backlight is on, it appears as red/yellow/black ring. Somtimes it went away by itself, and other time I have to "wipe" it away with finger force.
Anyone know what is wrong?
2 questions
1) Have you tried removing the screen protection just to see whether its on the screen protection or on the main lcd screen
2) did you ever exposed lcd it to high electromagnetic waves??
1. I didn't remove the screen protector as I believe it's beneath the LCD film.
2. I don't think it has been exposed to any electromagnetic waves, as it appears after I pulled it out from my pocket.
I've had it too but it's gone now
I had the exact same problem a few weeks ago. The place I stayed was not well ventilated and I THINK it caused some water condensation to occur between the digitizer and lcd screen. I slept in an air-conditioned room the next day and it was gone!
My deduction is that you need a cool or cold environment for the stain to evaporate.
The same problem arises again, and this time it has been a couple days but it still did not go away.
It looks almost like a burn mark.
You may have a defective digitizer.
Found another thread talking about this:
http://forum.xda-developers.com/showthread.php?t=439410
This is the so-called 'Newton ring' in optics/Physics. It means that in that area, the thickness of LCD is slightly thicker/thinner than rest of the area. This is normally due to stress at that point. It is annoying but if there are no repeated color rings, like red/yellow/blue/red/yellow/blue, it should be fine. If you have alot of repeated color rings, the LCD may approach its life end.
frank.lui said:
This is the so-called 'Newton ring' in optics/Physics. It means that in that area, the thickness of LCD is slightly thicker/thinner than rest of the area. This is normally due to stress at that point. It is annoying but if there are no repeated color rings, like red/yellow/blue/red/yellow/blue, it should be fine. If you have alot of repeated color rings, the LCD may approach its life end.
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Thanks for the info. When you said it should be fine, do you mean it will disappear, or it just won't affect usability?
It may disappear if the stress is released, e.g., you push the area a bit or you put it into different temperature environment. But I doubt it will disappear for ever. It was not there in the first place then it came. This means some sort of stress/pressure built up there. It should not affect your daily use a lot. It is just a visual effect. But if it gets worse, the colour rings will become very dense and sharp. It will affect you visual. I had a phone pinged on LCD sometime ago. It had similar rings like yours. But it was so dense I could not see any thing behind it. I had to change it for £35.
Also I looked at another previous comment about the humidity. It could give you the same effect. Maybe you can bake your phone a bit?
Related
Hello, I've had my diamond about a week, looked after it, no physical damage to it as far as i noticed...
but just been browsing and notice a small line about 1cm long across the screen only visible on light background, rainbow coloured. would this be a scratch underneath the screen? i dont feel any roughness on the outer screen. how would this happen, any solutions? cheers.
jmh7 said:
Hello, I've had my diamond about a week, looked after it, no physical damage to it as far as i noticed...
but just been browsing and notice a small line about 1cm long across the screen only visible on light background, rainbow coloured. would this be a scratch underneath the screen? i dont feel any roughness on the outer screen. how would this happen, any solutions? cheers.
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Same here...
Thats a fault with the screen, I work for a big TV company and that is the most common fault we see in our service centre! is it a green line? if so then its probably some dust on an internal connector, According to our engineers its easy to fix but invoves taking the whole screen off!
(this is how it works with TV's im pretty sure its the same with a phone screen!)
That's funny, I recently noticed the exact same kind of scratch on mine.
I can only tell with a white background though...
That happened to me aswell. Just do a soft reset, it worked for me .
ma3a20 said:
That happened to me aswell. Just do a soft reset, it worked for me .
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We're not talking about the same thing here.
In my case, it's clearly a scratch considering I can see it with the device turned OFF under the right lighting conditions (and at a certain angle).
I can't tell if it's the screen protection or the actual screen that's damaged though and I don't really care to try to find out
I just got a tilt about a week ago and ive noticed that in the middle of the screen there seems to be a purple greenish tint when put against incandescent light. The size of said glint varies in size but i'm unable to see what changes the size. Not sure if its heat or pressure or something. The touch screen works perfectly its just really annoying to always see such an annoying glint.
An interesting discovery is that when i press all four corners of the screen it disappears and when i press in the middle of the little square it seems to spread out. I feel like theres some kind of material or something in the touch screen that is causing this due to pressure. I keep it in a hard case in my pocket so the screen isnt pressed on inadvertently.
I've searched the forum for any answers but i havent seen anything about it. Any response or help would be greatly appreciated. I'll try to get a picture of it up asap but i left my camera at a friends house and dont know when im getting it back...thanks in advanced
~sayazs
Do you see the same "annoying glint" under neon light (not day / sunlight)?
Lots of NOKIA and SONY ERICSSON phones for example get this screen recolorization under direct sunlight - this has nothing to do with the screen being defective but with the plastic above the screen which breaks the light and shows you this colored spots. If you can't see the same spot under direct neon light then this might be the cause.
It is normal that you get color changes while pressing the screen in. First of, you press / bent the protecting plastic and the liquid within the screen which causes the incoming light to break in a different angle, therefore the color changes. (BTW: you shouldn't do that too often, it can cause permanent stains on your screen!).
There sure is the possibility that your screen gets pressure from underneath due bad assembling! If you're still under warranty, try to get a replacement.
yeah you cant see it in day light. but i feel as though there is constant pressure on the screen between the plastic and liquid since the spot is always there and doesnt really go away (unless of course in daylight).
well im thinking im going to go back for a replacement. thanks for the quick answer!
Iv got a weird problem with my Kaiser and i cant quite pin point it, so i was hoping someone might be able to. Every now and then i get a sort of ''pattern'' under the LCD. When i push on it i can 'slide' it accross but when i take my finger off it moves back to the middle/original position.
The 'pattern' is always in the very middle of the screen and it varies in rectangular size. 90% of the time this rectangle is visiable, the screen more or less doesnt work.
This pattern can only be seen when the screen is off, and even then it needs to be tilted slightly.
The pattern ONLY seems to appear when the temperature chnages, ie if its been sitting on my desk all day i wont see anythign & it will work fine. But, if i put it in my pocket and walka roudn for 30+mins and take it out of my pocket the pattern will be there 7 the screen wont work. Once again, i have to put it on the side and leave it for 30+mins and the pattern eventually disappears and the screen works again.
Asking a few mates, they recon it could be a moisture under the screen, and its only aroudn whent he temperature chnages due to it condensing etc. Once the temperature has stablised it evaporates off. Do you think this could be correct?
And as for fixing it, would a hair dryer on it work 2 try and evaporate the water for good, or is it a LCD replacement job?
Many thanks all
Andehh said:
it could be a moisture under the screen, and its only aroudn whent he temperature chnages due to it condensing etc. Once the temperature has stablised it evaporates off. Do you think this could be correct?
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Have a look at your moisture indicator sticker(s) on the back of the device to see if they've turned pink. Have you used it in heavy rain or dropped it into water ever? I've done none of those things but often put my TyTN II in my shirt pocket and have never experienced that screen problem. If your moisture stickers aren't pink and it's still under warranty, it may be worth looking at a warranty repair for this intermittant fault (making sure you fully explain to them under what circumstances it happens). Personally I wouldn't use extreme heat like a hairdryer but mild heat like a hot water cupboard with some silica gel packs wrapped around it may help to make sure all water is removed.
Thank you for your reply mate!
iv checked the sticker on the back and it is still totally white, so obviously fine in that respect. Iv used it in rain before, and enough drops have got onto the screen for me to wipe it away but i wouldnt call it soaked!
Ill look into the HTC repair route, im guessing the instructions etc are all on their web site?
edit: iv sent off an HTC repair ticket, but are they reliable in responding? iv never really trusted these built it in web forms.
I've seen some threads about this on other tabs, like the Galaxy Tab 10.1, but not on the Asus tablets yet. On my TF701T, I noticed over the past month that when I take it out of the case I have for it (a neoprene case with a zipper), it has a spot in the middle about the size of two quarters that looks like moisture under the glass.
Within a few seconds of turning it on (and sometimes not even turning it on), it disappears by quickly getting smaller and smaller into the center.
All of this, not a big deal.
However, last night I saw something even more odd....the spot disappeared with the exception of a ring of moisture (instead of a full circle) that stayed and wouldn't go away (again, slightly larger than a quarter). Touching parts of the screen would jiggle the ring. It seems like something was happening in the LCD display.
In the past when it went away, I assumed the screen was warming up and causing it to go away. However since it didn't this time, I thought something was damaged.
I saw a bizarre thread somewhere that suggested to put it in the fridge or freezer for a short time and the cooling would make it go away....if I remember correctly, it may have implied that the LCD and digitizer where touching or stuck together. I figured, what the heck, I stuck it in the freezer for a few minutes. When I got it out, it was nice an cold, and the spot was gone.
Has anyone seen this? Anyone know anything about what this would occur and why the cold would fix it?
Thanks,
chris
I had exactly the same issue you described. The moisture spot would always go away eventually. However, one day, while in use, the screen suddenly died. The tablet was still working fine (confirmed with an hdmi cable). I was unlocked, so the tablet became useless. I have no idea if the moisture and screen failures were related or not, but if you are not unlocked, I'd probably try to get it repaired.
I suspect that what you and I have is a gap between the LCD and the digitizer. We have (3) tf701t's in our house now and no moisture spots yet on any of them.
Hope this helps.
derekk1 said:
I had exactly the same issue you described. The moisture spot would always go away eventually. However, one day, while in use, the screen suddenly died. The tablet was still working fine (confirmed with an hdmi cable). I was unlocked, so the tablet became useless. I have no idea if the moisture and screen failures were related or not, but if you are not unlocked, I'd probably try to get it repaired.
I suspect that what you and I have is a gap between the LCD and the digitizer. We have (3) tf701t's in our house now and no moisture spots yet on any of them.
Hope this helps.
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Thanks, good to know. I am unfortunately already rooted and running sbdags rom. It is interesting that it only happens when I have had it in the case for a little while. Hadn't happened again for about a week, but started happened again last night. Fortunately, it went away on its own again very quickly. Oh well, it is what it is.
blickley said:
I've seen some threads about this on other tabs, like the Galaxy Tab 10.1, but not on the Asus tablets yet. On my TF701T, I noticed over the past month that when I take it out of the case I have for it (a neoprene case with a zipper), it has a spot in the middle about the size of two quarters that looks like moisture under the glass.
Within a few seconds of turning it on (and sometimes not even turning it on), it disappears by quickly getting smaller and smaller into the center.
All of this, not a big deal.
However, last night I saw something even more odd....the spot disappeared with the exception of a ring of moisture (instead of a full circle) that stayed and wouldn't go away (again, slightly larger than a quarter). Touching parts of the screen would jiggle the ring. It seems like something was happening in the LCD display.
In the past when it went away, I assumed the screen was warming up and causing it to go away. However since it didn't this time, I thought something was damaged.
I saw a bizarre thread somewhere that suggested to put it in the fridge or freezer for a short time and the cooling would make it go away....if I remember correctly, it may have implied that the LCD and digitizer where touching or stuck together. I figured, what the heck, I stuck it in the freezer for a few minutes. When I got it out, it was nice an cold, and the spot was gone.
Has anyone seen this? Anyone know anything about what this would occur and why the cold would fix it?
Thanks,
chris
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Click to collapse
I have also noticed the same spot after pulling my tablet out of the neoprene case. I have been getting itchy to root but now I will hold off. Maybe I should try the freezer fix?
Thanks for post!
ASUS Tf701 moisture ring center of glass
I had this happen in the past, but it always went away when I turned the tablet on. I always store it in a leather case, the screen never touches anything. It recently came back and will not go away. I've been reading threads about putting it in the freezer for a short time....my question is, how long have people left it in there, 2 minutes, 5 minutes? The spot is driving me crazy since it now won't go away.
Thanks for your assistance!
Roni
I have the same problem with my TF701T. But I noticed it isn't moisture between the screen but digitizer and the LCD screen touching eachother? If you bend the tablet really slightly towards you, you'll see the "moisture" go away. Don't have to apply too much force. Might be just design flaw IMO.
I have a D5803 that came back from being serviced. The touchscreen went bad, so the whole assembly (screen + sensor) was replaced.
Since you have to almost completely disassembly the phone to get to the screen, I suspect something went wrong during the repair.
The screen is flickering at random. By flickering, imagine a bad fluorescent lamp: you can clearly see the brightness varying vary fast, causing a flicker effect. Also, imagina a CRT screen. The flicker stops when you refresh the screen, like cycling through the home screens of your phone.
The guy who repaired it said it is a bad resistor that controls the current going to the panel's backlight. His excuse is that the board is very thin and fragile and that something might happened during the repair service. He also said that if he tries to do something else, the problem might get worse/something else might break. I suspect the screen installed is not OEM and is of bad quality. Sometimes the screen keeps autopressing as if someone was actually touching the screen, but not. Wiping the screen down on soft clothes (cleaning it) solves the problem. The screen probably doesn't have an oleophobic coating.
So, my question is: Is this guy right or is he lying (trying to push me ****ty parts/service)? How to know?
Also, is it possible to have a slightly smaller sized screen part? Because it feels that the screen area has decreased a bit (bezel increased somewhat). But since I do not use this phone since almost two years ago, I might be imagining things.