Touchscreen with Texture

Electrovibration could make for a better sensory experience on a smooth touch surface.

Touch screens are ubiquitous today. But a common complaint is that the smooth surface just doesn’t feel as good to use as a physical keypad. While some touch-screen devices use mechanical vibrations to enhance users’ experiences of virtual keypads, the approach isn’t widely used, mainly because mechanical vibrations are difficult to implement well, and they often make the entire device buzz in your hand, instead of just a particular spot on the screen.

Now, engineers from three different groups are proposing a type of tactile feedback that they believe will be more popular than mechanical buzzing. Called electrovibration, the technique uses electrical charges to simulate the feeling of localized vibration and friction, providing touch-screen textures that are impossible to simulate using mechanical actuators.

[via Technology Review]

Low priced polarized LCD 3D Display

One of the few available polarized LCD 3D Displays is the LG 47LD950. As of today the lowest internet price is ~1.000 Euro.

Hyundai has also some polarized LCDs available pdf but the 46″ sized displays internet price is now arround 9.200 Euro.

The last polarized display I found is the JVC GD-463D10. The internet price is arround 5.200 Euro.

What’s the reason for the huge price difference? I don’t know.