Hi,
I have my phone on me all of the time, even when working in dusty/dirty environments and often have problems with dirt getting between the screen edges and the casing causing random/ghost screen taps displaying the volume dialog, clock dialog, etc.
I can often clear the problem by blowing around gap between the casing and the screen whilst twisting the casing - a bit crude, but it does the job.
Does anyone else have a problem with this and have they managed to find a solution?
I am wondering if a screen protector with help fill the gap - I'm not fussed about protecting the screen because I usually have the phone closed and the screen protected, I'm just hopping that it will reduce the dust ingress.
Related
After owning the Touch HD for a full month I just noticed that down the middle of the screen there is something which I can best describe as an oil stain. It looks as if there is a liquid in between the glass/plastic screen and the resistive layer that lays on top of it.
The screen works normally and this "stain" can only be observed if I look at how the light reflects of it.
Any idea what happened?
Hi,
I have a small idear. The TFT-Monitor ist touching your Touchscreen. Probeply you pressed something on your HD, that the two Monitor touch each other, that is why it looks like a Water or Oil spot.
This can happen for example, if you are carrying your HD in your trouser pocket.
If you want to try to remove this spot, you have to turn with your both hand the hd, like the right hand turn with the clock and the left hand turn to the other way.
Sorry, my english is not very good for such a discribing. What I mean is like "to contort" or "to skew (up)". But you have to be very carefully. Before you start, remove the Battery
(I'll be incorporating a clearer explanation along the lines of what Dude10 was trying to say)
The effect you're seeing is IDENTICAL to what causes the colours to appear on an oil film actually!
The way the Touch HD screen works is to have the hard glass (polycarbonate plastic actually as far as I'm aware, but that's not important here!) with a squashy resistive sensor layer on the top.
This resistive layer detects touch as an increase in resistance at the spot that's compressed - be that by a finger or a stylus. Because the upper layer can be compressed, it can also be malformed by stronger than normal pressure, such as an object in a pocket. The effect can be more pronounced if your body heat warms up the screen surface making the screen "set" in position rather than spring back as it should do...
The "oil" effect is cause by the reflections of light from the outermost plastic layer and the outermost surface of the hard screen. When the gap is small enough, these reflections can interfere with each other, cancelling and re-inforcing different wavelengths depending on the thickness - hence the tapering of the screen from thinnest to thickest results in a "rainbow"
Now, why explain all this you may ask? Partly because I like science and it fascinated me in school to learn what caused that effect so wanted to share this! (And this also explains why it only presents itself when you look at the light reflections)
Anyway, more importantly, the solution to your problem is to restore the thickness of that part of the touch layer to it's original uncompressed state.
I'd firstly start trying to hold your finger flat against the top of the phone screen (on flat surface, portraint orientation, finger "left to right") then pressing resonably hard (the hard screen should protect the device - if not you're pressing too hard!) slide your finger down the screen from top to bottom trying to keep an even pressure. This should hopefully even out the surface.
Failing this, as Dude10 suggests, take the battery out and use your thumbs (holding with fingers in the battery well) to press and "smear" around the problem area.
Unfortunately, other than this I don't think there's a particular way to remove the effect totally if it doesn't work...
Obviously it's speculation given that you didn't mention how it happened in the first place, but it does sound like it got knocked or pressed by something either in bag or pocket - maybe even a fold in the pouch
Hope you manage to smooth it out!
WhO_KnOwS said:
After owning the Touch HD for a full month I just noticed that down the middle of the screen there is something which I can best describe as an oil stain.
Click to expand...
Click to collapse
Just a long shot, but:
Sometimes a similar effect can be caused when some moisture has got between the layers of a display.
Have you used the phone anywhere damp or very humid ?
Keeping it somewhere warm and dry might be worth a try?
- Steve
Thanks for all the tips. The issue happened when I had the Touch HD in the pouch and in my pocket - so the idea that it was a fold in the pouch holds water.
The funny thing however is that before I saw all of your replies I was already out the door (with the Touch HD back in the pouch and pocket). 5 minutes later when I pulled it out the issue was gone. I am guessing that I reapplied the exact amount of pressure needed or something like that.
Thanks again for the tips and especially to chaosdefinesorder for the nice explanation.
Thx for helping explanation
5 minutes later when I pulled it out the issue was gone.
Click to expand...
Click to collapse
no, i don't think it was gone. check again under a fluorescent light....
i have this on my diamond. my HD is flawless (till now...)
i phoned to a technician and explain the phenomena and he invited me to replace the screen. when i got there, to my complete amazement and embarrassment the stain was gone. only later i discovered that the stain is visible under fluorescent light only.
chaosdefinesorder said:
Unfortunately, other than this I don't think there's a particular way to remove the effect totally if it doesn't work...
Hope you manage to smooth it out!
Click to expand...
Click to collapse
thanks m8, already tried this (on my diamond) and tried now again with both yr methods. no results. the stain is still there...i think only a replacement can solve it.
here u have the paralel thread in diamond forum:
http://forum.xda-developers.com/showthread.php?t=439410&highlight=oily+stain
you can not do it yourself. the best way will be to go to your seller or straight to HTC, because I think you HD still have warranty.
I repaired ones an Diamond and I can tell you, it wasn´t an easy way.
This is my first phone with a capacitive screen, so perhaps it is a quirk of them, but I have noticed that if I am not holding the phone in such a way that I am touching the metal bezel, the screen does not recognise touches that are close to the edges of the screen. It seems that the screen requires a circuit to be made with other metal parts on the phone before recognising the touch.
For example, if I put the phone on my desk and touch the backspace key with a single finger, nothing happens. If I keep holding my finger on it, and touch the metal bezel, hey presto, the button clicks.
This reminds me of a watch a friend of mine had a long time ago, that had a capacitive "hair trigger" button that only worked for him (because it required a circuit to be made with the back face of the watch, meaning when he pressed the button it completed a circuit through his body)
Anyone else noticed this? It is slightly annoying because I have to hold the bezel when I want to use the phone..
Confirmed.
And you might very well be correct in the assumption about the circuit not closing in every part of the screen. I think it's the nature of any capacitive surface tbh. If you press in the middle of the screen then there is enough adjecent space to actually complete the circuit while on the edges there is simply not enough space around your fingertip to not close the circuit at all. That is why touching the bezel works.
But as I have been holding my little Hero in my hand while typing anything I simply didn't know this little odd thing. I have read about it though.
Yet another reason to hold your precious little Hero in your hand...
Wierd not like that on my samsung.. its all plastic tho
Mine is the same.. especially on the right hand side of the screen. If it's in a case it makes it really bad!!
Sounds like bad shileding and grounding to me
Didn't notice this until I put a screen protector on but now it's really bugging me.
On a related note (metal bezel related), I've noticed that in dim lighting the button backlight flickers. But if i touch the screen and bezel, it stops.
herman3101 said:
Didn't notice this until I put a screen protector on but now it's really bugging me.
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Click to collapse
Same here. Could it be that the screen protector slightly touches the aluminium casing and thus grounding the screen (or creating a wrong potential)?
I noticed that when i touch (=ground) the outer aluminum frame with just one single finger then the touch screen works flawlessly.
(I'm using the offical HTC screen protector).
joemax said:
On a related note (metal bezel related), I've noticed that in dim lighting the button backlight flickers. But if i touch the screen and bezel, it stops.
Click to expand...
Click to collapse
Hmm definatly bad grounding issue. Its either some pretty poor design or a defect.
i confrim, using hero without touch the metal edge result in less responsivity and difficult on multitouch operation
hope new firmware can solve this, too many errors using it like a normal keyboard on a table!
I have a small glitch (maybe half a millimeter) at the bottom of the device where the screen meets the plastic frame. It is somewhat annoying since I'm so pleased with the rest of phone + the crack/glitch tends to collect some dust. Does anyone else have this? I assume this should not be glued together in the event the phone needs to be disassembled.
Bought a Galaxy S4 on ebay a few weeks back. Didn't notice it at first, but when I sat down to apply a screen protector and wiped the screen clean, I noticed there is some sort of a micro object, like a white dot just under the glass. It is not a dead pixel, because it is there when screen is completely off, and when I tilt the phone and hold it at an angle I can see that LCD under this tiny dot is clean.
What the heck can it be? I doubt the seller changed the glass screen and wasn't careful when cleaning the LCD, but I suppose it is remotely possible since the phone has a nasty scratch with tiny chunks of plastic chipped off, on the bottom right corner of the silver bezel.
Anyone had a problem like this with their screen? Any way to fix this short of removing the screen?
Could be dust under the screen. If I was you I'd get it replaced if it bothers you. I dont think there is no way to remove it other than removing glass to clean it and reapply which I advice against.
"All men are created equal, some work harder in pre-season."
- Emitt Smith
I have dropped my S4 a few times, luckily most of the times it was with the ultra thin plastic case. Case did the trick of stopping the glass shattering, but I've noticed an irregular shape appearing beneath the glass in the upper right edge (where the phone has fallen once). The irregularly shaped blob has different colour than the rest of the blue bezel around the screen, it seems that the screen has delaminated from the blue background layer on that part. Phone works without any problems.
Has anyone else been having the same problem (I've seen it also on my colleagues S4, same reason), and is there any easy way to fix it (applying heat/pressure to the delaminated part or something similar)?
The glass digitizer screen is stuck on to the LED screen behind it with an Optical Glue.
I wouldn't think that a small part would come away like that, more likely you have damaged the LED screen.