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Touch screen dead spots - what causes them?

J

jamsomito

2[H]4U
Joined
Aug 29, 2010
Messages
3,202
I have a Droid Eris that's on its last legs. I can't upgrade until Dec 15, and that date can't come soon enough. I've had a dead spot in the touch screen (the display still works fine, it just won't register my touches) for about half a year now and it's a miracle I haven't thrown the phone out the window, ran it over with my car, set it on fire, and sprinkled its remains across creation.

My frustrations aside, I'm wondering what causes these dead spots in touch screens. Unfortunately all I can find are posts on other forums where people in similar situations are complaining about the issue. The conclusion is always that it is a hardware problem and you either need to send it in for warranty replacement, spend an arm and a leg on a new phone (for those unlucky to be out of warranty and without insurance, like me), or deal with it.

My knowledge of the hardware is somewhat limited, but I understand there are a couple different types of touchscreens: resistance and capacitive. I believe most cell phones use capacitive touchscreens, so I'm assuming it's not a flawed technology. The issue seems to plague a small percentage of Android, Windows, and iPhone device owners alike, which leads me to believe it's not necessarily a certain manufacturer of touchscreens either.

I want to ensure I avoid this problem on whatever phone I'm getting on the 15th... and I really hope that phone is a Nexus. Is there any way I can tell which phones will be more or less susceptible to dead spots?
 
Try getting something with *AMOLED (Samsung). The touch is integrated into the screen, even works with gloves.
 
My OG Droid has the same issue. The dead spots are in terrible locations too. One is right where backspace is on the portrait keyboard (thank god for the slide out qwerty), and the other is right where popups like to appear on some mobile sites so I can't close them. The galaxy nexus can't come fast enough.
 
MrLonghair said:
Try getting something with *AMOLED (Samsung). The touch is integrated into the screen, even works with gloves.
Click to expand...

Pretty sure this is 100% incorrect.

Rather than live with a terrible phone get the extended warranty next time or buy a used phone for cheap.
 
bpizzle1 said:
My OG Droid has the same issue. The dead spots are in terrible locations too. One is right where backspace is on the portrait keyboard (thank god for the slide out qwerty), and the other is right where popups like to appear on some mobile sites so I can't close them. The galaxy nexus can't come fast enough.
Click to expand...

You're lucky you have a physical keyboard. My dead spot is in the lower left corner... can't click the correct button on any error message, typing barely works as the phone takes several seconds to flip from vertical to horizontal to avoid the dead spot, and I can't dial the number 7, so my voicemail box is full. Tried alternate dialers, can't find one that moves the keys enough to allow me to hit the button.

Are there any screen types that operate differently, or are they all nearly identical in how they function?
 
MrLonghair said:
Try getting something with *AMOLED (Samsung). The touch is integrated into the screen, even works with gloves.
Click to expand...

No it doesn't. But your tongue works in a pinch. :)

I would kill to have a answer hard button on my phone.
 
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