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Thread: Touch screen

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    Touch screen

    What makes touch screen work? Why do my fingers generally not do what they are supposed to do? I have use those 'rubber' pointers, but they quit before long. What is the problem? Help.
    Micah 6:8 He has told you, O man, what is good; and what does the LORD require of you but to do justice, and to love kindness, and to walk humbly with your God?

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    tWebber
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    Try moisturizer or a stylus

    https://www.consumerreports.org/cro/...eens/index.htm

    http://news.wjct.org/post/ask-deemab...spond-my-touch

    With my phone, i have sometimes had trouble accessing the touch screen with the hand I'm holding the phone with. I probably changed the capacitance effect that way.

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    See, the Thing is... Cow Poke's Avatar
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    Quote Originally Posted by Jedidiah View Post
    What makes touch screen work? Why do my fingers generally not do what they are supposed to do? I have use those 'rubber' pointers, but they quit before long. What is the problem? Help.
    First question - do you have a screen guard? Like a scratch resistant or crack resistant film? Often, those make the touch screen less sensitive.

    Secondly - because you and I are "up in years", our fingers tend to be drier. I actually saw a disclaimer on my biometric gun safe that "persons above 65 years of age should not...." Basically it was warning that our fingerprints tend to be less recognizable.

    See if a younger person has any trouble making your screen respond.
    Every problem is the result of a previous solution.

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    Must...have...caffeine One Bad Pig's Avatar
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    I don't like touch screens. Hooves make them very complicated.
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    Thanks for the input.
    Micah 6:8 He has told you, O man, what is good; and what does the LORD require of you but to do justice, and to love kindness, and to walk humbly with your God?

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    Troll Magnet Sparko's Avatar
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    They work by using capacitance. At least the modern ones to. Your skin is conductive and when you touch the screen, the capacitance at that location changes. Earlier touch screens worked by resistance and strain gauges. When you pressed on the screen, it deflected the glass and the strain gauge could use that to detect where you pressed.

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    Quote Originally Posted by Sparko View Post
    They work by using capacitance. At least the modern ones to. Your skin is conductive and when you touch the screen, the capacitance at that location changes. Earlier touch screens worked by resistance and strain gauges. When you pressed on the screen, it deflected the glass and the strain gauge could use that to detect where you pressed.
    Just for grins, there are other touch screens (usually much bigger ones) that use cameras in the corners, triangulating the position of the finger on the screen.
    Every problem is the result of a previous solution.

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