Spray paint technique

We all know, chalkboard paint turns surfaces into chalkboards. We also know that the magnetic paint turns surfaces into magnets. But now for a change touchscreen paint could turn surfaces into touchscreens. Researchers of Carnegie Mellon University have been turning all types of things into touchscreens.

Concept Of Touch 

Researchers say, it is a way too expensive to use regular touchscreen technology, we also use this for smartphones and tablets, and same on large or small shaped objects. So they came up with a much more comfortable and easy to use. It’s called Electrick. They explain their invention as a “low-cost and versatile sensing technique that enables touch input on a wide variety of objects and surfaces, whether it is small or large, flat or irregular.”

“For enable Electrick, objects must either be made by any electrically conductive material, or it has a conductive coating,” the researchers wrote in their paper presented at the CHI 2017 conference. “The latter can be easily and cheaply applied through e.g., painting, allowing for large touch surfaces (e.g., walls, furniture) at under $1 per square foot of interactive area.”

Once the material becomes conductive, it’s installed with electrodes so it can start its new life as a touchscreen. According to a CMU, “They did this by using electric field tomography—sequentially emitting small amounts of current through the electrodes in pairs and noting any voltage differences.” That’s why, your finger’s touch interrupts the current, which give signals to a computer to perform whatever task you’ve told it to.

Innovator’s Conclusion 

The other-side of this technology is that it’s not as accurate as the touchscreen on your smartphone or tablet. However, the researchers say it’s accurate within about a centimeter. According to CMU, that means some great uses might include “a button, slider or other control” like an on/off switch. That can be useful for both regular people and scientist. It is like, touch a wall to turn on a light, and companies looking towards the manufacturing of this product. It’s so easy to apply and use this product.

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