how touch screens work
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Screens you tap at the ATM, supermarket check outs or kiosks are usually fitted with a resistive touchscreen. The resistive touch technology is the most widely used touch technology today. A resistive touchscreen consists of two thin flexible metallic layers with a gap in between. These two layers have an electric current running through them. When touched the top flexible layer touches the bottom one, interrupting the electrical current. The device notices this and detects the point of contact by the change in electrical flow. Of course this all happens at warp speed.
Resistive touch is one of the cheapest touch technologies out there. A resistive touchscreenresponds to pressure and doesn't care what object applies the pressure. A finger, glove or stylus will all work. Swiping and multi touch do not work, because this technology only registers one touch point. That is why a resistive touchscreen doesn't work on smartphones or tablets (what would we do without swiping?). The actual display is always situated behind the touch layers. But these layers are not quite as clear as glass. That is why ATM's and in-flight entertainment screens are a bit hazy.
Resistive touch is one of the cheapest touch technologies out there. A resistive touchscreenresponds to pressure and doesn't care what object applies the pressure. A finger, glove or stylus will all work. Swiping and multi touch do not work, because this technology only registers one touch point. That is why a resistive touchscreen doesn't work on smartphones or tablets (what would we do without swiping?). The actual display is always situated behind the touch layers. But these layers are not quite as clear as glass. That is why ATM's and in-flight entertainment screens are a bit hazy.
soumya337:
can you say the difference between resistive and capacitive touchscreen
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