View Single Post
  #85 (permalink)  
Old 06-11-2010, 01:01 AM
yachtspecco's Avatar
yachtspecco
PPCGeeks Regular
Offline
Location: Pacific NorthWet
 
Join Date: Dec 2007
Posts: 69
Reputation: 45
yachtspecco is just getting started
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Re: Try this screen test with your EVO and report back

Quote:
Originally Posted by Aukutsutsu View Post
This problem is caused by the way in which capacitive screens work. It is hard to understand unless you have had experience with electrical engineering, but I will try to explain it in a simple way.

The non-conductive surfaces you speak of (especially beds with sheets, styrofoam and plastic) are all capable of maintaining an electrical charge. When the phone is placed on this surface, the phone will also pick up this charge in the plastic case/glass screen. This excess charge will affect the capacitive screen because capacitive screens rely on electrical charge to work. When you pick up the phone, you are grounding the case (because skin is conductive) and removing the excess charge built up on the case/screen of the phone, and the screen will function normally.

Edit: Sorry forgot to say this is why only some people experience the issue and others not. The problem is COMPLETELY dependent upon the environment (surface charges, etc.)
OK, I think I know the answer to this. Everyone has a different moisture level and salinity level on the surface of their fingers. This means conductivity varies depending on these factors. I had a buddy in high school who's fingers were so "non conductive" he would grab hold of bare 120 V ac wires plugged in to house outlets to check if they were live. Didn't bother him a bit. It would send me through the ceiling! Just sayin' maybe it's not your phone??????
John
Hey Mod's where did my avatar go?
Reply With Quote