Do You Know How Touch Screen (Glass) Problems? : solve with "TeslaTouch."

Now you know why apple's  iPhone front screen is made of glass? there is because of user can see and interact with interface. But how will be if it's back side of iPhone would make with glass? 

Yes I also shocked when I know about this type of  user interface in back side. but that's is true. Apple is going to make it's iPhone backside with glass .

But now I am going to talk how this glass Touch Screen has one big problem solution? 

Glass touch screen is common to now days. every where you will see this type of touch screen. And I am sure that you have now touch screen in you hand. In rail-way station, bus stop, museum, you will find touch screen. And now Microsoft is going to make latest two interface touch screen. that means? that means if know that if you touch on your screen it understands only your first touch. but with second touch at same time that will be not considered by that glass. that type of gadget has already been launched by Microsoft. I will write about soon. But till than know about how touch screen problem now on your finger interface? 

the way a team of Disney Researchers sees it, there's one huge problem with this technology: All glass screens feel exactly the same.

Now see difference between hardware Keyboard and Touch Keyboard: see, if you press key on hardware keyboard, where you can feel whether your fingers are hitting the right keys. but when you use touch keyboard, where the letters "q" and "w" feel exactly the same -- as does the space between them 

That's the problem that Disney Research is hoping to solve with a new technology it's calling "TeslaTouch."

This type of touch screen was first time successfully demonstrated in  tech conference in New York this week, uses a small static force to control friction between a user's finger and the touch screen.

"It's kind of like a buzzing or a vibration. It has the same effect as a buzz," said Chris Harrison, one of the Disney researchers and a Ph.D. student at Carnegie Mellon University. "But if you carefully tune the frequency and the vibration of the panel you can actually create things that feel like sandpaper or rubber or a wall." 

Now see what this company says about this new touch screen:





TelsaTouch infuses finger-driven interfaces with physical feedback. The technology is based on the electrovibration principle, which can programmatically vary the electrostatic friction between fingers and a touch panel. Importantly, there are no moving parts, unlike most tactile feedback technologies, which use vibration motors. This allows for different fingers to feel different sensations. When combined with an interactive graphical display, TeslaTouch enables the design of a wide variety of interfaces that allow the user to feel virtual elements through touch. For example, when dragging a file, the level of friction could convey the file size. Objects could "snap" into place when designing a presentation. Or perhaps with a quick "rub" of your email application's icon, you could sense how many emails are unread. Finally, imagine a (flat) touch keyboard where the virtual keys can be felt. The possibilities are endless.




Tactile feedback based on electrovibration has several compelling properties. It is fast, low-powered, dynamic, and can be used in a wide range of interaction scenarios and applications, including multitouch interfaces. Our system demonstrates an exceptionally broad bandwidth and uniformity of response across a wide range of frequencies and amplitudes. Furthermore, the technology is highly scalable and can be used efficiently on touch surfaces of any size, shape and configuration, including large interactive tables, hand-held mobile devices, as well as curved, flexible and irregular touch surfaces. Lastly, because our design does not have any moving parts, it can be easily added to existing devices with minimal physical modification.


TelsaTouch was developed at Disney Research, Pittsburgh. The industrial design of the TeslaTouch mobile prototype was produced by the CMU School of Design. Disney Research is a network of research laboratories at The Walt Disney Company. Key proficiencies are in Computer Graphics, Video Processing, Computer Vision, Robotics, Radio and Antennas, Wireless Communications, Human-Computer Interaction, and Behavioral Sciences, with developing competency in areas 
such as data mining and displays.

I would like to know the name of researchers of this type of screen: Olivier Bau Ivan Poupyrev Ali Israr Chris Harrison