How on earth do touchscreens work?
Discussion
Thankyou4calling said:
I find it amazing that I can touch something on say my Iphone, the info is stored in my fingertip and when i touch something else on the phone my fingertip discharges that information!
It's amazing.
Now I know it can't be in my fingertip but where is it/How does it happen?
???It's amazing.
Now I know it can't be in my fingertip but where is it/How does it happen?
What information exactly do you think is being stored in your fingertip?
The information goes into your fingertip and then goes out again when you touch your device again, or another device. If you touch someone else's fingertip with yours the information transfers to them so they can put it in their device. Be careful of governments hiding information in apps though so they can transfer it to our brains via our fingertips.
Duh, your finger is attached to your hand which is attached to your arm which is attached to your body which is attached to your neck which is attached to your head which contains your brain.
When you want to put information into your phone it goes from your brain down to your finger and into the phone.
Simple.
When you want to put information into your phone it goes from your brain down to your finger and into the phone.
Simple.
Impasse said:
You know when you make a simple mistake when typing and so go back to delete the erroneous letter? Where do all those letter go?
Literally they have to go to the back of the line awaiting redeployment elsewhere. It can be a long, long wait for letters like Q, X and Z. Similar to when as a child, your gran would give you some chocolate, only for your mum to see it and take it off you, telling you that it was "for later, after dinner" but that later didn't always happen. I really would like to know in laymans terms how it works
https://www.youtube.com/watch?v=y_6n3Q0GyKM
https://www.youtube.com/watch?v=y_6n3Q0GyKM
Touch screens - there's two types: resistance and capacitance.
The resistance ones are the 'old' technology, and there's two layers of wires. One arranged in rows, and the other arranged in columns. If you touch the screen, then the wires touch, and the relative resistance along these gives you the X/Y coordinate of where you touched. You can't really touch the screen in two places at the same time, because the resistance changes so it'll think you're touching in a third place (and only once). This type works well with a pen.
The capacitance ones are the 'new' technology, which we all get in our smartphones. Like the resistance, there's a grid of wires - except it's much wider. As your finger approaches the screen, your finger changes the capacitance, and by scanning each wire, the phone can work out where your finger is. Since it's scanning each wire, it can detect multiple 'presses' - although it's not actually pressing; it's just in close contact. This type doesn't work well with a pen, because the pen is unable to change the capacitance in the same way that a finger can (there are pens which can work - but they're special).
The resistance ones are the 'old' technology, and there's two layers of wires. One arranged in rows, and the other arranged in columns. If you touch the screen, then the wires touch, and the relative resistance along these gives you the X/Y coordinate of where you touched. You can't really touch the screen in two places at the same time, because the resistance changes so it'll think you're touching in a third place (and only once). This type works well with a pen.
The capacitance ones are the 'new' technology, which we all get in our smartphones. Like the resistance, there's a grid of wires - except it's much wider. As your finger approaches the screen, your finger changes the capacitance, and by scanning each wire, the phone can work out where your finger is. Since it's scanning each wire, it can detect multiple 'presses' - although it's not actually pressing; it's just in close contact. This type doesn't work well with a pen, because the pen is unable to change the capacitance in the same way that a finger can (there are pens which can work - but they're special).
tribbles said:
Touch screens - there's two types: resistance and capacitance.
The resistance ones are the 'old' technology, and there's two layers of wires. One arranged in rows, and the other arranged in columns. If you touch the screen, then the wires touch, and the relative resistance along these gives you the X/Y coordinate of where you touched. You can't really touch the screen in two places at the same time, because the resistance changes so it'll think you're touching in a third place (and only once). This type works well with a pen.
The capacitance ones are the 'new' technology, which we all get in our smartphones. Like the resistance, there's a grid of wires - except it's much wider. As your finger approaches the screen, your finger changes the capacitance, and by scanning each wire, the phone can work out where your finger is. Since it's scanning each wire, it can detect multiple 'presses' - although it's not actually pressing; it's just in close contact. This type doesn't work well with a pen, because the pen is unable to change the capacitance in the same way that a finger can (there are pens which can work - but they're special).
Ah, the sensible answer that I was about to post.The resistance ones are the 'old' technology, and there's two layers of wires. One arranged in rows, and the other arranged in columns. If you touch the screen, then the wires touch, and the relative resistance along these gives you the X/Y coordinate of where you touched. You can't really touch the screen in two places at the same time, because the resistance changes so it'll think you're touching in a third place (and only once). This type works well with a pen.
The capacitance ones are the 'new' technology, which we all get in our smartphones. Like the resistance, there's a grid of wires - except it's much wider. As your finger approaches the screen, your finger changes the capacitance, and by scanning each wire, the phone can work out where your finger is. Since it's scanning each wire, it can detect multiple 'presses' - although it's not actually pressing; it's just in close contact. This type doesn't work well with a pen, because the pen is unable to change the capacitance in the same way that a finger can (there are pens which can work - but they're special).
Pros and Cons to each type...
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