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Old 01-21-2011, 12:30 PM   #21
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My screen wont work say threw my shirt, even if my finger is there. Perhaps it'* both, needs the heat and the electrical contact.
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Old 01-21-2011, 12:30 PM   #22
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Ha im bouncing between being in my truck and lading and unloading cars and doing crap here at the shop...thank god for god heaters
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Old 01-21-2011, 12:33 PM   #23
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It'* warmed up a lot here, all the way up to -7
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Old 01-21-2011, 12:34 PM   #24
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its like uhh hold on ..........................................15 here
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Old 01-21-2011, 12:55 PM   #25
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Hmm, the only types of touch screens I can find are:

**This is what our phones have I believe**

Capacitive

A capacitive touchscreen panel is one which consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO).[7][8] As the human body is also a conductor, touching the surface of the screen results in a distortion of the screen'* electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing.

Surface acoustic wave

Surface acoustic wave (SAW) technology uses ultrasonic waves that pass over the touchscreen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels can be damaged by outside elements. Contaminants on the surface can also interfere with the functionality of the touchscreen.


Surface capacitance

In this basic technology, only one side of the insulator is coated with a conductive layer. A small voltage is applied to the layer, resulting in a uniform electrostatic field. When a conductor, such as a human finger, touches the uncoated surface, a capacitor is dynamically formed. The sensor'* controller can determine the location of the touch indirectly from the change in the capacitance as measured from the four corners of the panel. As it has no moving parts, it is moderately durable but has limited resolution, is prone to false signals from parasitic capacitive coupling, and needs calibration during manufacture. It is therefore most often used in simple applications such as industrial controls and kiosks.


Infrared

An infrared touchscreen uses an array of X-Y infrared LED and photodetector pairs around the edges of the screen to detect a disruption in the pattern of LED beams. These LED beams cross each other in vertical and horizontal patterns. This helps the sensors pick up the exact location of the touch. A major benefit of such a system is that it can detect essentially any input including a finger, gloved finger, stylus or pen. It is generally used in outdoor applications and point-of-sale systems which can't rely on a conductor (such as a bare finger) to activate the touchscreen. Unlike capacitive touchscreens, infrared touchscreens do not require any patterning on the glass which increases durability and optical clarity of the overall system.


I don't see anything about heat sensing though.

I was looking here http://en.wikipedia.org/wiki/Touchscreen
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Old 01-21-2011, 12:58 PM   #26
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Guess your right. So what your saying is the guy at US cellular does not know what he'* talking about?
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Old 01-21-2011, 01:05 PM   #27
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Quote:
Originally Posted by Danthurs View Post
Guess your right. So what your saying is the guy at US cellular does not know what he'* talking about?
A lot of those guys really have no idea. They just say "Ohh, I like this phone, you should buy it, it'* got this and that". Sounds like you got one of them :P
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Old 01-21-2011, 01:07 PM   #28
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I never thought to even look in to it, just took him at his word. When I first got it I grabbed the stylus and he said no, that wont work, it needs the heat from your finger to work.
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Old 01-21-2011, 01:28 PM   #29
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You guys need to stop crying, and send me some. I am stuck with this:


Where is my winter? It'* not fair!
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Old 01-21-2011, 01:31 PM   #30
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I would come down there and kick you real hard, but I'll freeze before I get there.
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